// node_modules/three/build/three.core.js
var REVISION = "171";
var MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2, ROTATE: 0, DOLLY: 1, PAN: 2 };
var TOUCH = { ROTATE: 0, PAN: 1, DOLLY_PAN: 2, DOLLY_ROTATE: 3 };
var CullFaceNone = 0;
var CullFaceBack = 1;
var CullFaceFront = 2;
var PCFShadowMap = 1;
var PCFSoftShadowMap = 2;
var VSMShadowMap = 3;
var FrontSide = 0;
var BackSide = 1;
var DoubleSide = 2;
var NoBlending = 0;
var NormalBlending = 1;
var AdditiveBlending = 2;
var SubtractiveBlending = 3;
var MultiplyBlending = 4;
var CustomBlending = 5;
var AddEquation = 100;
var SubtractEquation = 101;
var ReverseSubtractEquation = 102;
var MinEquation = 103;
var MaxEquation = 104;
var ZeroFactor = 200;
var OneFactor = 201;
var SrcColorFactor = 202;
var OneMinusSrcColorFactor = 203;
var SrcAlphaFactor = 204;
var OneMinusSrcAlphaFactor = 205;
var DstAlphaFactor = 206;
var OneMinusDstAlphaFactor = 207;
var DstColorFactor = 208;
var OneMinusDstColorFactor = 209;
var SrcAlphaSaturateFactor = 210;
var ConstantColorFactor = 211;
var OneMinusConstantColorFactor = 212;
var ConstantAlphaFactor = 213;
var OneMinusConstantAlphaFactor = 214;
var NeverDepth = 0;
var AlwaysDepth = 1;
var LessDepth = 2;
var LessEqualDepth = 3;
var EqualDepth = 4;
var GreaterEqualDepth = 5;
var GreaterDepth = 6;
var NotEqualDepth = 7;
var MultiplyOperation = 0;
var MixOperation = 1;
var AddOperation = 2;
var NoToneMapping = 0;
var LinearToneMapping = 1;
var ReinhardToneMapping = 2;
var CineonToneMapping = 3;
var ACESFilmicToneMapping = 4;
var CustomToneMapping = 5;
var AgXToneMapping = 6;
var NeutralToneMapping = 7;
var AttachedBindMode = "attached";
var DetachedBindMode = "detached";
var UVMapping = 300;
var CubeReflectionMapping = 301;
var CubeRefractionMapping = 302;
var EquirectangularReflectionMapping = 303;
var EquirectangularRefractionMapping = 304;
var CubeUVReflectionMapping = 306;
var RepeatWrapping = 1e3;
var ClampToEdgeWrapping = 1001;
var MirroredRepeatWrapping = 1002;
var NearestFilter = 1003;
var NearestMipmapNearestFilter = 1004;
var NearestMipmapLinearFilter = 1005;
var LinearFilter = 1006;
var LinearMipmapNearestFilter = 1007;
var LinearMipmapLinearFilter = 1008;
var UnsignedByteType = 1009;
var ByteType = 1010;
var ShortType = 1011;
var UnsignedShortType = 1012;
var IntType = 1013;
var UnsignedIntType = 1014;
var FloatType = 1015;
var HalfFloatType = 1016;
var UnsignedShort4444Type = 1017;
var UnsignedShort5551Type = 1018;
var UnsignedInt248Type = 1020;
var UnsignedInt5999Type = 35902;
var AlphaFormat = 1021;
var RGBFormat = 1022;
var RGBAFormat = 1023;
var LuminanceFormat = 1024;
var LuminanceAlphaFormat = 1025;
var DepthFormat = 1026;
var DepthStencilFormat = 1027;
var RedFormat = 1028;
var RedIntegerFormat = 1029;
var RGFormat = 1030;
var RGIntegerFormat = 1031;
var RGBAIntegerFormat = 1033;
var RGB_S3TC_DXT1_Format = 33776;
var RGBA_S3TC_DXT1_Format = 33777;
var RGBA_S3TC_DXT3_Format = 33778;
var RGBA_S3TC_DXT5_Format = 33779;
var RGB_PVRTC_4BPPV1_Format = 35840;
var RGB_PVRTC_2BPPV1_Format = 35841;
var RGBA_PVRTC_4BPPV1_Format = 35842;
var RGBA_PVRTC_2BPPV1_Format = 35843;
var RGB_ETC1_Format = 36196;
var RGB_ETC2_Format = 37492;
var RGBA_ETC2_EAC_Format = 37496;
var RGBA_ASTC_4x4_Format = 37808;
var RGBA_ASTC_5x4_Format = 37809;
var RGBA_ASTC_5x5_Format = 37810;
var RGBA_ASTC_6x5_Format = 37811;
var RGBA_ASTC_6x6_Format = 37812;
var RGBA_ASTC_8x5_Format = 37813;
var RGBA_ASTC_8x6_Format = 37814;
var RGBA_ASTC_8x8_Format = 37815;
var RGBA_ASTC_10x5_Format = 37816;
var RGBA_ASTC_10x6_Format = 37817;
var RGBA_ASTC_10x8_Format = 37818;
var RGBA_ASTC_10x10_Format = 37819;
var RGBA_ASTC_12x10_Format = 37820;
var RGBA_ASTC_12x12_Format = 37821;
var RGBA_BPTC_Format = 36492;
var RGB_BPTC_SIGNED_Format = 36494;
var RGB_BPTC_UNSIGNED_Format = 36495;
var RED_RGTC1_Format = 36283;
var SIGNED_RED_RGTC1_Format = 36284;
var RED_GREEN_RGTC2_Format = 36285;
var SIGNED_RED_GREEN_RGTC2_Format = 36286;
var InterpolateDiscrete = 2300;
var InterpolateLinear = 2301;
var InterpolateSmooth = 2302;
var ZeroCurvatureEnding = 2400;
var ZeroSlopeEnding = 2401;
var WrapAroundEnding = 2402;
var NormalAnimationBlendMode = 2500;
var TrianglesDrawMode = 0;
var TriangleStripDrawMode = 1;
var TriangleFanDrawMode = 2;
var BasicDepthPacking = 3200;
var RGBADepthPacking = 3201;
var TangentSpaceNormalMap = 0;
var ObjectSpaceNormalMap = 1;
var NoColorSpace = "";
var SRGBColorSpace = "srgb";
var LinearSRGBColorSpace = "srgb-linear";
var LinearTransfer = "linear";
var SRGBTransfer = "srgb";
var KeepStencilOp = 7680;
var AlwaysStencilFunc = 519;
var NeverCompare = 512;
var LessCompare = 513;
var EqualCompare = 514;
var LessEqualCompare = 515;
var GreaterCompare = 516;
var NotEqualCompare = 517;
var GreaterEqualCompare = 518;
var AlwaysCompare = 519;
var StaticDrawUsage = 35044;
var GLSL3 = "300 es";
var WebGLCoordinateSystem = 2e3;
var WebGPUCoordinateSystem = 2001;
var EventDispatcher = class {
  addEventListener(type, listener) {
    if (this._listeners === void 0) this._listeners = {};
    const listeners = this._listeners;
    if (listeners[type] === void 0) {
      listeners[type] = [];
    }
    if (listeners[type].indexOf(listener) === -1) {
      listeners[type].push(listener);
    }
  }
  hasEventListener(type, listener) {
    if (this._listeners === void 0) return false;
    const listeners = this._listeners;
    return listeners[type] !== void 0 && listeners[type].indexOf(listener) !== -1;
  }
  removeEventListener(type, listener) {
    if (this._listeners === void 0) return;
    const listeners = this._listeners;
    const listenerArray = listeners[type];
    if (listenerArray !== void 0) {
      const index = listenerArray.indexOf(listener);
      if (index !== -1) {
        listenerArray.splice(index, 1);
      }
    }
  }
  dispatchEvent(event) {
    if (this._listeners === void 0) return;
    const listeners = this._listeners;
    const listenerArray = listeners[event.type];
    if (listenerArray !== void 0) {
      event.target = this;
      const array = listenerArray.slice(0);
      for (let i = 0, l = array.length; i < l; i++) {
        array[i].call(this, event);
      }
      event.target = null;
    }
  }
};
var _lut = ["00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "0a", "0b", "0c", "0d", "0e", "0f", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "1a", "1b", "1c", "1d", "1e", "1f", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "2a", "2b", "2c", "2d", "2e", "2f", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "3a", "3b", "3c", "3d", "3e", "3f", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "4a", "4b", "4c", "4d", "4e", "4f", "50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "5a", "5b", "5c", "5d", "5e", "5f", "60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "6a", "6b", "6c", "6d", "6e", "6f", "70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "7a", "7b", "7c", "7d", "7e", "7f", "80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "8a", "8b", "8c", "8d", "8e", "8f", "90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "9a", "9b", "9c", "9d", "9e", "9f", "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9", "aa", "ab", "ac", "ad", "ae", "af", "b0", "b1", "b2", "b3", "b4", "b5", "b6", "b7", "b8", "b9", "ba", "bb", "bc", "bd", "be", "bf", "c0", "c1", "c2", "c3", "c4", "c5", "c6", "c7", "c8", "c9", "ca", "cb", "cc", "cd", "ce", "cf", "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "d8", "d9", "da", "db", "dc", "dd", "de", "df", "e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7", "e8", "e9", "ea", "eb", "ec", "ed", "ee", "ef", "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9", "fa", "fb", "fc", "fd", "fe", "ff"];
var _seed = 1234567;
var DEG2RAD = Math.PI / 180;
var RAD2DEG = 180 / Math.PI;
function generateUUID() {
  const d0 = Math.random() * 4294967295 | 0;
  const d1 = Math.random() * 4294967295 | 0;
  const d2 = Math.random() * 4294967295 | 0;
  const d3 = Math.random() * 4294967295 | 0;
  const uuid = _lut[d0 & 255] + _lut[d0 >> 8 & 255] + _lut[d0 >> 16 & 255] + _lut[d0 >> 24 & 255] + "-" + _lut[d1 & 255] + _lut[d1 >> 8 & 255] + "-" + _lut[d1 >> 16 & 15 | 64] + _lut[d1 >> 24 & 255] + "-" + _lut[d2 & 63 | 128] + _lut[d2 >> 8 & 255] + "-" + _lut[d2 >> 16 & 255] + _lut[d2 >> 24 & 255] + _lut[d3 & 255] + _lut[d3 >> 8 & 255] + _lut[d3 >> 16 & 255] + _lut[d3 >> 24 & 255];
  return uuid.toLowerCase();
}
function clamp(value, min, max) {
  return Math.max(min, Math.min(max, value));
}
function euclideanModulo(n, m) {
  return (n % m + m) % m;
}
function mapLinear(x, a1, a2, b1, b2) {
  return b1 + (x - a1) * (b2 - b1) / (a2 - a1);
}
function inverseLerp(x, y, value) {
  if (x !== y) {
    return (value - x) / (y - x);
  } else {
    return 0;
  }
}
function lerp(x, y, t) {
  return (1 - t) * x + t * y;
}
function damp(x, y, lambda, dt) {
  return lerp(x, y, 1 - Math.exp(-lambda * dt));
}
function pingpong(x, length = 1) {
  return length - Math.abs(euclideanModulo(x, length * 2) - length);
}
function smoothstep(x, min, max) {
  if (x <= min) return 0;
  if (x >= max) return 1;
  x = (x - min) / (max - min);
  return x * x * (3 - 2 * x);
}
function smootherstep(x, min, max) {
  if (x <= min) return 0;
  if (x >= max) return 1;
  x = (x - min) / (max - min);
  return x * x * x * (x * (x * 6 - 15) + 10);
}
function randInt(low, high) {
  return low + Math.floor(Math.random() * (high - low + 1));
}
function randFloat(low, high) {
  return low + Math.random() * (high - low);
}
function randFloatSpread(range) {
  return range * (0.5 - Math.random());
}
function seededRandom(s) {
  if (s !== void 0) _seed = s;
  let t = _seed += 1831565813;
  t = Math.imul(t ^ t >>> 15, t | 1);
  t ^= t + Math.imul(t ^ t >>> 7, t | 61);
  return ((t ^ t >>> 14) >>> 0) / 4294967296;
}
function degToRad(degrees) {
  return degrees * DEG2RAD;
}
function radToDeg(radians) {
  return radians * RAD2DEG;
}
function isPowerOfTwo(value) {
  return (value & value - 1) === 0 && value !== 0;
}
function ceilPowerOfTwo(value) {
  return Math.pow(2, Math.ceil(Math.log(value) / Math.LN2));
}
function floorPowerOfTwo(value) {
  return Math.pow(2, Math.floor(Math.log(value) / Math.LN2));
}
function setQuaternionFromProperEuler(q, a, b, c, order) {
  const cos = Math.cos;
  const sin = Math.sin;
  const c2 = cos(b / 2);
  const s2 = sin(b / 2);
  const c13 = cos((a + c) / 2);
  const s13 = sin((a + c) / 2);
  const c1_3 = cos((a - c) / 2);
  const s1_3 = sin((a - c) / 2);
  const c3_1 = cos((c - a) / 2);
  const s3_1 = sin((c - a) / 2);
  switch (order) {
    case "XYX":
      q.set(c2 * s13, s2 * c1_3, s2 * s1_3, c2 * c13);
      break;
    case "YZY":
      q.set(s2 * s1_3, c2 * s13, s2 * c1_3, c2 * c13);
      break;
    case "ZXZ":
      q.set(s2 * c1_3, s2 * s1_3, c2 * s13, c2 * c13);
      break;
    case "XZX":
      q.set(c2 * s13, s2 * s3_1, s2 * c3_1, c2 * c13);
      break;
    case "YXY":
      q.set(s2 * c3_1, c2 * s13, s2 * s3_1, c2 * c13);
      break;
    case "ZYZ":
      q.set(s2 * s3_1, s2 * c3_1, c2 * s13, c2 * c13);
      break;
    default:
      console.warn("THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: " + order);
  }
}
function denormalize(value, array) {
  switch (array.constructor) {
    case Float32Array:
      return value;
    case Uint32Array:
      return value / 4294967295;
    case Uint16Array:
      return value / 65535;
    case Uint8Array:
      return value / 255;
    case Int32Array:
      return Math.max(value / 2147483647, -1);
    case Int16Array:
      return Math.max(value / 32767, -1);
    case Int8Array:
      return Math.max(value / 127, -1);
    default:
      throw new Error("Invalid component type.");
  }
}
function normalize(value, array) {
  switch (array.constructor) {
    case Float32Array:
      return value;
    case Uint32Array:
      return Math.round(value * 4294967295);
    case Uint16Array:
      return Math.round(value * 65535);
    case Uint8Array:
      return Math.round(value * 255);
    case Int32Array:
      return Math.round(value * 2147483647);
    case Int16Array:
      return Math.round(value * 32767);
    case Int8Array:
      return Math.round(value * 127);
    default:
      throw new Error("Invalid component type.");
  }
}
var MathUtils = {
  DEG2RAD,
  RAD2DEG,
  generateUUID,
  clamp,
  euclideanModulo,
  mapLinear,
  inverseLerp,
  lerp,
  damp,
  pingpong,
  smoothstep,
  smootherstep,
  randInt,
  randFloat,
  randFloatSpread,
  seededRandom,
  degToRad,
  radToDeg,
  isPowerOfTwo,
  ceilPowerOfTwo,
  floorPowerOfTwo,
  setQuaternionFromProperEuler,
  normalize,
  denormalize
};
var Vector2 = class _Vector2 {
  constructor(x = 0, y = 0) {
    _Vector2.prototype.isVector2 = true;
    this.x = x;
    this.y = y;
  }
  get width() {
    return this.x;
  }
  set width(value) {
    this.x = value;
  }
  get height() {
    return this.y;
  }
  set height(value) {
    this.y = value;
  }
  set(x, y) {
    this.x = x;
    this.y = y;
    return this;
  }
  setScalar(scalar) {
    this.x = scalar;
    this.y = scalar;
    return this;
  }
  setX(x) {
    this.x = x;
    return this;
  }
  setY(y) {
    this.y = y;
    return this;
  }
  setComponent(index, value) {
    switch (index) {
      case 0:
        this.x = value;
        break;
      case 1:
        this.y = value;
        break;
      default:
        throw new Error("index is out of range: " + index);
    }
    return this;
  }
  getComponent(index) {
    switch (index) {
      case 0:
        return this.x;
      case 1:
        return this.y;
      default:
        throw new Error("index is out of range: " + index);
    }
  }
  clone() {
    return new this.constructor(this.x, this.y);
  }
  copy(v) {
    this.x = v.x;
    this.y = v.y;
    return this;
  }
  add(v) {
    this.x += v.x;
    this.y += v.y;
    return this;
  }
  addScalar(s) {
    this.x += s;
    this.y += s;
    return this;
  }
  addVectors(a, b) {
    this.x = a.x + b.x;
    this.y = a.y + b.y;
    return this;
  }
  addScaledVector(v, s) {
    this.x += v.x * s;
    this.y += v.y * s;
    return this;
  }
  sub(v) {
    this.x -= v.x;
    this.y -= v.y;
    return this;
  }
  subScalar(s) {
    this.x -= s;
    this.y -= s;
    return this;
  }
  subVectors(a, b) {
    this.x = a.x - b.x;
    this.y = a.y - b.y;
    return this;
  }
  multiply(v) {
    this.x *= v.x;
    this.y *= v.y;
    return this;
  }
  multiplyScalar(scalar) {
    this.x *= scalar;
    this.y *= scalar;
    return this;
  }
  divide(v) {
    this.x /= v.x;
    this.y /= v.y;
    return this;
  }
  divideScalar(scalar) {
    return this.multiplyScalar(1 / scalar);
  }
  applyMatrix3(m) {
    const x = this.x, y = this.y;
    const e = m.elements;
    this.x = e[0] * x + e[3] * y + e[6];
    this.y = e[1] * x + e[4] * y + e[7];
    return this;
  }
  min(v) {
    this.x = Math.min(this.x, v.x);
    this.y = Math.min(this.y, v.y);
    return this;
  }
  max(v) {
    this.x = Math.max(this.x, v.x);
    this.y = Math.max(this.y, v.y);
    return this;
  }
  clamp(min, max) {
    this.x = clamp(this.x, min.x, max.x);
    this.y = clamp(this.y, min.y, max.y);
    return this;
  }
  clampScalar(minVal, maxVal) {
    this.x = clamp(this.x, minVal, maxVal);
    this.y = clamp(this.y, minVal, maxVal);
    return this;
  }
  clampLength(min, max) {
    const length = this.length();
    return this.divideScalar(length || 1).multiplyScalar(clamp(length, min, max));
  }
  floor() {
    this.x = Math.floor(this.x);
    this.y = Math.floor(this.y);
    return this;
  }
  ceil() {
    this.x = Math.ceil(this.x);
    this.y = Math.ceil(this.y);
    return this;
  }
  round() {
    this.x = Math.round(this.x);
    this.y = Math.round(this.y);
    return this;
  }
  roundToZero() {
    this.x = Math.trunc(this.x);
    this.y = Math.trunc(this.y);
    return this;
  }
  negate() {
    this.x = -this.x;
    this.y = -this.y;
    return this;
  }
  dot(v) {
    return this.x * v.x + this.y * v.y;
  }
  cross(v) {
    return this.x * v.y - this.y * v.x;
  }
  lengthSq() {
    return this.x * this.x + this.y * this.y;
  }
  length() {
    return Math.sqrt(this.x * this.x + this.y * this.y);
  }
  manhattanLength() {
    return Math.abs(this.x) + Math.abs(this.y);
  }
  normalize() {
    return this.divideScalar(this.length() || 1);
  }
  angle() {
    const angle = Math.atan2(-this.y, -this.x) + Math.PI;
    return angle;
  }
  angleTo(v) {
    const denominator = Math.sqrt(this.lengthSq() * v.lengthSq());
    if (denominator === 0) return Math.PI / 2;
    const theta = this.dot(v) / denominator;
    return Math.acos(clamp(theta, -1, 1));
  }
  distanceTo(v) {
    return Math.sqrt(this.distanceToSquared(v));
  }
  distanceToSquared(v) {
    const dx = this.x - v.x, dy = this.y - v.y;
    return dx * dx + dy * dy;
  }
  manhattanDistanceTo(v) {
    return Math.abs(this.x - v.x) + Math.abs(this.y - v.y);
  }
  setLength(length) {
    return this.normalize().multiplyScalar(length);
  }
  lerp(v, alpha) {
    this.x += (v.x - this.x) * alpha;
    this.y += (v.y - this.y) * alpha;
    return this;
  }
  lerpVectors(v1, v2, alpha) {
    this.x = v1.x + (v2.x - v1.x) * alpha;
    this.y = v1.y + (v2.y - v1.y) * alpha;
    return this;
  }
  equals(v) {
    return v.x === this.x && v.y === this.y;
  }
  fromArray(array, offset = 0) {
    this.x = array[offset];
    this.y = array[offset + 1];
    return this;
  }
  toArray(array = [], offset = 0) {
    array[offset] = this.x;
    array[offset + 1] = this.y;
    return array;
  }
  fromBufferAttribute(attribute, index) {
    this.x = attribute.getX(index);
    this.y = attribute.getY(index);
    return this;
  }
  rotateAround(center, angle) {
    const c = Math.cos(angle), s = Math.sin(angle);
    const x = this.x - center.x;
    const y = this.y - center.y;
    this.x = x * c - y * s + center.x;
    this.y = x * s + y * c + center.y;
    return this;
  }
  random() {
    this.x = Math.random();
    this.y = Math.random();
    return this;
  }
  *[Symbol.iterator]() {
    yield this.x;
    yield this.y;
  }
};
var Matrix3 = class _Matrix3 {
  constructor(n11, n12, n13, n21, n22, n23, n31, n32, n33) {
    _Matrix3.prototype.isMatrix3 = true;
    this.elements = [
      1,
      0,
      0,
      0,
      1,
      0,
      0,
      0,
      1
    ];
    if (n11 !== void 0) {
      this.set(n11, n12, n13, n21, n22, n23, n31, n32, n33);
    }
  }
  set(n11, n12, n13, n21, n22, n23, n31, n32, n33) {
    const te = this.elements;
    te[0] = n11;
    te[1] = n21;
    te[2] = n31;
    te[3] = n12;
    te[4] = n22;
    te[5] = n32;
    te[6] = n13;
    te[7] = n23;
    te[8] = n33;
    return this;
  }
  identity() {
    this.set(
      1,
      0,
      0,
      0,
      1,
      0,
      0,
      0,
      1
    );
    return this;
  }
  copy(m) {
    const te = this.elements;
    const me = m.elements;
    te[0] = me[0];
    te[1] = me[1];
    te[2] = me[2];
    te[3] = me[3];
    te[4] = me[4];
    te[5] = me[5];
    te[6] = me[6];
    te[7] = me[7];
    te[8] = me[8];
    return this;
  }
  extractBasis(xAxis, yAxis, zAxis) {
    xAxis.setFromMatrix3Column(this, 0);
    yAxis.setFromMatrix3Column(this, 1);
    zAxis.setFromMatrix3Column(this, 2);
    return this;
  }
  setFromMatrix4(m) {
    const me = m.elements;
    this.set(
      me[0],
      me[4],
      me[8],
      me[1],
      me[5],
      me[9],
      me[2],
      me[6],
      me[10]
    );
    return this;
  }
  multiply(m) {
    return this.multiplyMatrices(this, m);
  }
  premultiply(m) {
    return this.multiplyMatrices(m, this);
  }
  multiplyMatrices(a, b) {
    const ae = a.elements;
    const be = b.elements;
    const te = this.elements;
    const a11 = ae[0], a12 = ae[3], a13 = ae[6];
    const a21 = ae[1], a22 = ae[4], a23 = ae[7];
    const a31 = ae[2], a32 = ae[5], a33 = ae[8];
    const b11 = be[0], b12 = be[3], b13 = be[6];
    const b21 = be[1], b22 = be[4], b23 = be[7];
    const b31 = be[2], b32 = be[5], b33 = be[8];
    te[0] = a11 * b11 + a12 * b21 + a13 * b31;
    te[3] = a11 * b12 + a12 * b22 + a13 * b32;
    te[6] = a11 * b13 + a12 * b23 + a13 * b33;
    te[1] = a21 * b11 + a22 * b21 + a23 * b31;
    te[4] = a21 * b12 + a22 * b22 + a23 * b32;
    te[7] = a21 * b13 + a22 * b23 + a23 * b33;
    te[2] = a31 * b11 + a32 * b21 + a33 * b31;
    te[5] = a31 * b12 + a32 * b22 + a33 * b32;
    te[8] = a31 * b13 + a32 * b23 + a33 * b33;
    return this;
  }
  multiplyScalar(s) {
    const te = this.elements;
    te[0] *= s;
    te[3] *= s;
    te[6] *= s;
    te[1] *= s;
    te[4] *= s;
    te[7] *= s;
    te[2] *= s;
    te[5] *= s;
    te[8] *= s;
    return this;
  }
  determinant() {
    const te = this.elements;
    const a = te[0], b = te[1], c = te[2], d = te[3], e = te[4], f = te[5], g = te[6], h = te[7], i = te[8];
    return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;
  }
  invert() {
    const te = this.elements, n11 = te[0], n21 = te[1], n31 = te[2], n12 = te[3], n22 = te[4], n32 = te[5], n13 = te[6], n23 = te[7], n33 = te[8], t11 = n33 * n22 - n32 * n23, t12 = n32 * n13 - n33 * n12, t13 = n23 * n12 - n22 * n13, det = n11 * t11 + n21 * t12 + n31 * t13;
    if (det === 0) return this.set(0, 0, 0, 0, 0, 0, 0, 0, 0);
    const detInv = 1 / det;
    te[0] = t11 * detInv;
    te[1] = (n31 * n23 - n33 * n21) * detInv;
    te[2] = (n32 * n21 - n31 * n22) * detInv;
    te[3] = t12 * detInv;
    te[4] = (n33 * n11 - n31 * n13) * detInv;
    te[5] = (n31 * n12 - n32 * n11) * detInv;
    te[6] = t13 * detInv;
    te[7] = (n21 * n13 - n23 * n11) * detInv;
    te[8] = (n22 * n11 - n21 * n12) * detInv;
    return this;
  }
  transpose() {
    let tmp;
    const m = this.elements;
    tmp = m[1];
    m[1] = m[3];
    m[3] = tmp;
    tmp = m[2];
    m[2] = m[6];
    m[6] = tmp;
    tmp = m[5];
    m[5] = m[7];
    m[7] = tmp;
    return this;
  }
  getNormalMatrix(matrix4) {
    return this.setFromMatrix4(matrix4).invert().transpose();
  }
  transposeIntoArray(r) {
    const m = this.elements;
    r[0] = m[0];
    r[1] = m[3];
    r[2] = m[6];
    r[3] = m[1];
    r[4] = m[4];
    r[5] = m[7];
    r[6] = m[2];
    r[7] = m[5];
    r[8] = m[8];
    return this;
  }
  setUvTransform(tx, ty, sx, sy, rotation, cx, cy) {
    const c = Math.cos(rotation);
    const s = Math.sin(rotation);
    this.set(
      sx * c,
      sx * s,
      -sx * (c * cx + s * cy) + cx + tx,
      -sy * s,
      sy * c,
      -sy * (-s * cx + c * cy) + cy + ty,
      0,
      0,
      1
    );
    return this;
  }
  //
  scale(sx, sy) {
    this.premultiply(_m3.makeScale(sx, sy));
    return this;
  }
  rotate(theta) {
    this.premultiply(_m3.makeRotation(-theta));
    return this;
  }
  translate(tx, ty) {
    this.premultiply(_m3.makeTranslation(tx, ty));
    return this;
  }
  // for 2D Transforms
  makeTranslation(x, y) {
    if (x.isVector2) {
      this.set(
        1,
        0,
        x.x,
        0,
        1,
        x.y,
        0,
        0,
        1
      );
    } else {
      this.set(
        1,
        0,
        x,
        0,
        1,
        y,
        0,
        0,
        1
      );
    }
    return this;
  }
  makeRotation(theta) {
    const c = Math.cos(theta);
    const s = Math.sin(theta);
    this.set(
      c,
      -s,
      0,
      s,
      c,
      0,
      0,
      0,
      1
    );
    return this;
  }
  makeScale(x, y) {
    this.set(
      x,
      0,
      0,
      0,
      y,
      0,
      0,
      0,
      1
    );
    return this;
  }
  //
  equals(matrix) {
    const te = this.elements;
    const me = matrix.elements;
    for (let i = 0; i < 9; i++) {
      if (te[i] !== me[i]) return false;
    }
    return true;
  }
  fromArray(array, offset = 0) {
    for (let i = 0; i < 9; i++) {
      this.elements[i] = array[i + offset];
    }
    return this;
  }
  toArray(array = [], offset = 0) {
    const te = this.elements;
    array[offset] = te[0];
    array[offset + 1] = te[1];
    array[offset + 2] = te[2];
    array[offset + 3] = te[3];
    array[offset + 4] = te[4];
    array[offset + 5] = te[5];
    array[offset + 6] = te[6];
    array[offset + 7] = te[7];
    array[offset + 8] = te[8];
    return array;
  }
  clone() {
    return new this.constructor().fromArray(this.elements);
  }
};
var _m3 = /* @__PURE__ */ new Matrix3();
function arrayNeedsUint32(array) {
  for (let i = array.length - 1; i >= 0; --i) {
    if (array[i] >= 65535) return true;
  }
  return false;
}
function createElementNS(name) {
  return document.createElementNS("http://www.w3.org/1999/xhtml", name);
}
function createCanvasElement() {
  const canvas = createElementNS("canvas");
  canvas.style.display = "block";
  return canvas;
}
var _cache = {};
function warnOnce(message) {
  if (message in _cache) return;
  _cache[message] = true;
  console.warn(message);
}
function probeAsync(gl, sync, interval) {
  return new Promise(function(resolve, reject) {
    function probe() {
      switch (gl.clientWaitSync(sync, gl.SYNC_FLUSH_COMMANDS_BIT, 0)) {
        case gl.WAIT_FAILED:
          reject();
          break;
        case gl.TIMEOUT_EXPIRED:
          setTimeout(probe, interval);
          break;
        default:
          resolve();
      }
    }
    setTimeout(probe, interval);
  });
}
function toNormalizedProjectionMatrix(projectionMatrix) {
  const m = projectionMatrix.elements;
  m[2] = 0.5 * m[2] + 0.5 * m[3];
  m[6] = 0.5 * m[6] + 0.5 * m[7];
  m[10] = 0.5 * m[10] + 0.5 * m[11];
  m[14] = 0.5 * m[14] + 0.5 * m[15];
}
function toReversedProjectionMatrix(projectionMatrix) {
  const m = projectionMatrix.elements;
  const isPerspectiveMatrix = m[11] === -1;
  if (isPerspectiveMatrix) {
    m[10] = -m[10] - 1;
    m[14] = -m[14];
  } else {
    m[10] = -m[10];
    m[14] = -m[14] + 1;
  }
}
var LINEAR_REC709_TO_XYZ = /* @__PURE__ */ new Matrix3().set(
  0.4123908,
  0.3575843,
  0.1804808,
  0.212639,
  0.7151687,
  0.0721923,
  0.0193308,
  0.1191948,
  0.9505322
);
var XYZ_TO_LINEAR_REC709 = /* @__PURE__ */ new Matrix3().set(
  3.2409699,
  -1.5373832,
  -0.4986108,
  -0.9692436,
  1.8759675,
  0.0415551,
  0.0556301,
  -0.203977,
  1.0569715
);
function createColorManagement() {
  const ColorManagement2 = {
    enabled: true,
    workingColorSpace: LinearSRGBColorSpace,
    /**
     * Implementations of supported color spaces.
     *
     * Required:
     *	- primaries: chromaticity coordinates [ rx ry gx gy bx by ]
     *	- whitePoint: reference white [ x y ]
     *	- transfer: transfer function (pre-defined)
     *	- toXYZ: Matrix3 RGB to XYZ transform
     *	- fromXYZ: Matrix3 XYZ to RGB transform
     *	- luminanceCoefficients: RGB luminance coefficients
     *
     * Optional:
     *  - outputColorSpaceConfig: { drawingBufferColorSpace: ColorSpace }
     *  - workingColorSpaceConfig: { unpackColorSpace: ColorSpace }
     *
     * Reference:
     * - https://www.russellcottrell.com/photo/matrixCalculator.htm
     */
    spaces: {},
    convert: function(color, sourceColorSpace, targetColorSpace) {
      if (this.enabled === false || sourceColorSpace === targetColorSpace || !sourceColorSpace || !targetColorSpace) {
        return color;
      }
      if (this.spaces[sourceColorSpace].transfer === SRGBTransfer) {
        color.r = SRGBToLinear(color.r);
        color.g = SRGBToLinear(color.g);
        color.b = SRGBToLinear(color.b);
      }
      if (this.spaces[sourceColorSpace].primaries !== this.spaces[targetColorSpace].primaries) {
        color.applyMatrix3(this.spaces[sourceColorSpace].toXYZ);
        color.applyMatrix3(this.spaces[targetColorSpace].fromXYZ);
      }
      if (this.spaces[targetColorSpace].transfer === SRGBTransfer) {
        color.r = LinearToSRGB(color.r);
        color.g = LinearToSRGB(color.g);
        color.b = LinearToSRGB(color.b);
      }
      return color;
    },
    fromWorkingColorSpace: function(color, targetColorSpace) {
      return this.convert(color, this.workingColorSpace, targetColorSpace);
    },
    toWorkingColorSpace: function(color, sourceColorSpace) {
      return this.convert(color, sourceColorSpace, this.workingColorSpace);
    },
    getPrimaries: function(colorSpace) {
      return this.spaces[colorSpace].primaries;
    },
    getTransfer: function(colorSpace) {
      if (colorSpace === NoColorSpace) return LinearTransfer;
      return this.spaces[colorSpace].transfer;
    },
    getLuminanceCoefficients: function(target, colorSpace = this.workingColorSpace) {
      return target.fromArray(this.spaces[colorSpace].luminanceCoefficients);
    },
    define: function(colorSpaces) {
      Object.assign(this.spaces, colorSpaces);
    },
    // Internal APIs
    _getMatrix: function(targetMatrix, sourceColorSpace, targetColorSpace) {
      return targetMatrix.copy(this.spaces[sourceColorSpace].toXYZ).multiply(this.spaces[targetColorSpace].fromXYZ);
    },
    _getDrawingBufferColorSpace: function(colorSpace) {
      return this.spaces[colorSpace].outputColorSpaceConfig.drawingBufferColorSpace;
    },
    _getUnpackColorSpace: function(colorSpace = this.workingColorSpace) {
      return this.spaces[colorSpace].workingColorSpaceConfig.unpackColorSpace;
    }
  };
  const REC709_PRIMARIES = [0.64, 0.33, 0.3, 0.6, 0.15, 0.06];
  const REC709_LUMINANCE_COEFFICIENTS = [0.2126, 0.7152, 0.0722];
  const D65 = [0.3127, 0.329];
  ColorManagement2.define({
    [LinearSRGBColorSpace]: {
      primaries: REC709_PRIMARIES,
      whitePoint: D65,
      transfer: LinearTransfer,
      toXYZ: LINEAR_REC709_TO_XYZ,
      fromXYZ: XYZ_TO_LINEAR_REC709,
      luminanceCoefficients: REC709_LUMINANCE_COEFFICIENTS,
      workingColorSpaceConfig: { unpackColorSpace: SRGBColorSpace },
      outputColorSpaceConfig: { drawingBufferColorSpace: SRGBColorSpace }
    },
    [SRGBColorSpace]: {
      primaries: REC709_PRIMARIES,
      whitePoint: D65,
      transfer: SRGBTransfer,
      toXYZ: LINEAR_REC709_TO_XYZ,
      fromXYZ: XYZ_TO_LINEAR_REC709,
      luminanceCoefficients: REC709_LUMINANCE_COEFFICIENTS,
      outputColorSpaceConfig: { drawingBufferColorSpace: SRGBColorSpace }
    }
  });
  return ColorManagement2;
}
var ColorManagement = /* @__PURE__ */ createColorManagement();
function SRGBToLinear(c) {
  return c < 0.04045 ? c * 0.0773993808 : Math.pow(c * 0.9478672986 + 0.0521327014, 2.4);
}
function LinearToSRGB(c) {
  return c < 31308e-7 ? c * 12.92 : 1.055 * Math.pow(c, 0.41666) - 0.055;
}
var _canvas;
var ImageUtils = class {
  static getDataURL(image) {
    if (/^data:/i.test(image.src)) {
      return image.src;
    }
    if (typeof HTMLCanvasElement === "undefined") {
      return image.src;
    }
    let canvas;
    if (image instanceof HTMLCanvasElement) {
      canvas = image;
    } else {
      if (_canvas === void 0) _canvas = createElementNS("canvas");
      _canvas.width = image.width;
      _canvas.height = image.height;
      const context3 = _canvas.getContext("2d");
      if (image instanceof ImageData) {
        context3.putImageData(image, 0, 0);
      } else {
        context3.drawImage(image, 0, 0, image.width, image.height);
      }
      canvas = _canvas;
    }
    if (canvas.width > 2048 || canvas.height > 2048) {
      console.warn("THREE.ImageUtils.getDataURL: Image converted to jpg for performance reasons", image);
      return canvas.toDataURL("image/jpeg", 0.6);
    } else {
      return canvas.toDataURL("image/png");
    }
  }
  static sRGBToLinear(image) {
    if (typeof HTMLImageElement !== "undefined" && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== "undefined" && image instanceof HTMLCanvasElement || typeof ImageBitmap !== "undefined" && image instanceof ImageBitmap) {
      const canvas = createElementNS("canvas");
      canvas.width = image.width;
      canvas.height = image.height;
      const context3 = canvas.getContext("2d");
      context3.drawImage(image, 0, 0, image.width, image.height);
      const imageData = context3.getImageData(0, 0, image.width, image.height);
      const data = imageData.data;
      for (let i = 0; i < data.length; i++) {
        data[i] = SRGBToLinear(data[i] / 255) * 255;
      }
      context3.putImageData(imageData, 0, 0);
      return canvas;
    } else if (image.data) {
      const data = image.data.slice(0);
      for (let i = 0; i < data.length; i++) {
        if (data instanceof Uint8Array || data instanceof Uint8ClampedArray) {
          data[i] = Math.floor(SRGBToLinear(data[i] / 255) * 255);
        } else {
          data[i] = SRGBToLinear(data[i]);
        }
      }
      return {
        data,
        width: image.width,
        height: image.height
      };
    } else {
      console.warn("THREE.ImageUtils.sRGBToLinear(): Unsupported image type. No color space conversion applied.");
      return image;
    }
  }
};
var _sourceId = 0;
var Source = class {
  constructor(data = null) {
    this.isSource = true;
    Object.defineProperty(this, "id", { value: _sourceId++ });
    this.uuid = generateUUID();
    this.data = data;
    this.dataReady = true;
    this.version = 0;
  }
  set needsUpdate(value) {
    if (value === true) this.version++;
  }
  toJSON(meta) {
    const isRootObject = meta === void 0 || typeof meta === "string";
    if (!isRootObject && meta.images[this.uuid] !== void 0) {
      return meta.images[this.uuid];
    }
    const output = {
      uuid: this.uuid,
      url: ""
    };
    const data = this.data;
    if (data !== null) {
      let url;
      if (Array.isArray(data)) {
        url = [];
        for (let i = 0, l = data.length; i < l; i++) {
          if (data[i].isDataTexture) {
            url.push(serializeImage(data[i].image));
          } else {
            url.push(serializeImage(data[i]));
          }
        }
      } else {
        url = serializeImage(data);
      }
      output.url = url;
    }
    if (!isRootObject) {
      meta.images[this.uuid] = output;
    }
    return output;
  }
};
function serializeImage(image) {
  if (typeof HTMLImageElement !== "undefined" && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== "undefined" && image instanceof HTMLCanvasElement || typeof ImageBitmap !== "undefined" && image instanceof ImageBitmap) {
    return ImageUtils.getDataURL(image);
  } else {
    if (image.data) {
      return {
        data: Array.from(image.data),
        width: image.width,
        height: image.height,
        type: image.data.constructor.name
      };
    } else {
      console.warn("THREE.Texture: Unable to serialize Texture.");
      return {};
    }
  }
}
var _textureId = 0;
var Texture = class _Texture extends EventDispatcher {
  constructor(image = _Texture.DEFAULT_IMAGE, mapping = _Texture.DEFAULT_MAPPING, wrapS = ClampToEdgeWrapping, wrapT = ClampToEdgeWrapping, magFilter = LinearFilter, minFilter = LinearMipmapLinearFilter, format = RGBAFormat, type = UnsignedByteType, anisotropy = _Texture.DEFAULT_ANISOTROPY, colorSpace = NoColorSpace) {
    super();
    this.isTexture = true;
    Object.defineProperty(this, "id", { value: _textureId++ });
    this.uuid = generateUUID();
    this.name = "";
    this.source = new Source(image);
    this.mipmaps = [];
    this.mapping = mapping;
    this.channel = 0;
    this.wrapS = wrapS;
    this.wrapT = wrapT;
    this.magFilter = magFilter;
    this.minFilter = minFilter;
    this.anisotropy = anisotropy;
    this.format = format;
    this.internalFormat = null;
    this.type = type;
    this.offset = new Vector2(0, 0);
    this.repeat = new Vector2(1, 1);
    this.center = new Vector2(0, 0);
    this.rotation = 0;
    this.matrixAutoUpdate = true;
    this.matrix = new Matrix3();
    this.generateMipmaps = true;
    this.premultiplyAlpha = false;
    this.flipY = true;
    this.unpackAlignment = 4;
    this.colorSpace = colorSpace;
    this.userData = {};
    this.version = 0;
    this.onUpdate = null;
    this.isRenderTargetTexture = false;
    this.pmremVersion = 0;
  }
  get image() {
    return this.source.data;
  }
  set image(value = null) {
    this.source.data = value;
  }
  updateMatrix() {
    this.matrix.setUvTransform(this.offset.x, this.offset.y, this.repeat.x, this.repeat.y, this.rotation, this.center.x, this.center.y);
  }
  clone() {
    return new this.constructor().copy(this);
  }
  copy(source) {
    this.name = source.name;
    this.source = source.source;
    this.mipmaps = source.mipmaps.slice(0);
    this.mapping = source.mapping;
    this.channel = source.channel;
    this.wrapS = source.wrapS;
    this.wrapT = source.wrapT;
    this.magFilter = source.magFilter;
    this.minFilter = source.minFilter;
    this.anisotropy = source.anisotropy;
    this.format = source.format;
    this.internalFormat = source.internalFormat;
    this.type = source.type;
    this.offset.copy(source.offset);
    this.repeat.copy(source.repeat);
    this.center.copy(source.center);
    this.rotation = source.rotation;
    this.matrixAutoUpdate = source.matrixAutoUpdate;
    this.matrix.copy(source.matrix);
    this.generateMipmaps = source.generateMipmaps;
    this.premultiplyAlpha = source.premultiplyAlpha;
    this.flipY = source.flipY;
    this.unpackAlignment = source.unpackAlignment;
    this.colorSpace = source.colorSpace;
    this.userData = JSON.parse(JSON.stringify(source.userData));
    this.needsUpdate = true;
    return this;
  }
  toJSON(meta) {
    const isRootObject = meta === void 0 || typeof meta === "string";
    if (!isRootObject && meta.textures[this.uuid] !== void 0) {
      return meta.textures[this.uuid];
    }
    const output = {
      metadata: {
        version: 4.6,
        type: "Texture",
        generator: "Texture.toJSON"
      },
      uuid: this.uuid,
      name: this.name,
      image: this.source.toJSON(meta).uuid,
      mapping: this.mapping,
      channel: this.channel,
      repeat: [this.repeat.x, this.repeat.y],
      offset: [this.offset.x, this.offset.y],
      center: [this.center.x, this.center.y],
      rotation: this.rotation,
      wrap: [this.wrapS, this.wrapT],
      format: this.format,
      internalFormat: this.internalFormat,
      type: this.type,
      colorSpace: this.colorSpace,
      minFilter: this.minFilter,
      magFilter: this.magFilter,
      anisotropy: this.anisotropy,
      flipY: this.flipY,
      generateMipmaps: this.generateMipmaps,
      premultiplyAlpha: this.premultiplyAlpha,
      unpackAlignment: this.unpackAlignment
    };
    if (Object.keys(this.userData).length > 0) output.userData = this.userData;
    if (!isRootObject) {
      meta.textures[this.uuid] = output;
    }
    return output;
  }
  dispose() {
    this.dispatchEvent({ type: "dispose" });
  }
  transformUv(uv) {
    if (this.mapping !== UVMapping) return uv;
    uv.applyMatrix3(this.matrix);
    if (uv.x < 0 || uv.x > 1) {
      switch (this.wrapS) {
        case RepeatWrapping:
          uv.x = uv.x - Math.floor(uv.x);
          break;
        case ClampToEdgeWrapping:
          uv.x = uv.x < 0 ? 0 : 1;
          break;
        case MirroredRepeatWrapping:
          if (Math.abs(Math.floor(uv.x) % 2) === 1) {
            uv.x = Math.ceil(uv.x) - uv.x;
          } else {
            uv.x = uv.x - Math.floor(uv.x);
          }
          break;
      }
    }
    if (uv.y < 0 || uv.y > 1) {
      switch (this.wrapT) {
        case RepeatWrapping:
          uv.y = uv.y - Math.floor(uv.y);
          break;
        case ClampToEdgeWrapping:
          uv.y = uv.y < 0 ? 0 : 1;
          break;
        case MirroredRepeatWrapping:
          if (Math.abs(Math.floor(uv.y) % 2) === 1) {
            uv.y = Math.ceil(uv.y) - uv.y;
          } else {
            uv.y = uv.y - Math.floor(uv.y);
          }
          break;
      }
    }
    if (this.flipY) {
      uv.y = 1 - uv.y;
    }
    return uv;
  }
  set needsUpdate(value) {
    if (value === true) {
      this.version++;
      this.source.needsUpdate = true;
    }
  }
  set needsPMREMUpdate(value) {
    if (value === true) {
      this.pmremVersion++;
    }
  }
};
Texture.DEFAULT_IMAGE = null;
Texture.DEFAULT_MAPPING = UVMapping;
Texture.DEFAULT_ANISOTROPY = 1;
var Vector4 = class _Vector4 {
  constructor(x = 0, y = 0, z = 0, w = 1) {
    _Vector4.prototype.isVector4 = true;
    this.x = x;
    this.y = y;
    this.z = z;
    this.w = w;
  }
  get width() {
    return this.z;
  }
  set width(value) {
    this.z = value;
  }
  get height() {
    return this.w;
  }
  set height(value) {
    this.w = value;
  }
  set(x, y, z, w) {
    this.x = x;
    this.y = y;
    this.z = z;
    this.w = w;
    return this;
  }
  setScalar(scalar) {
    this.x = scalar;
    this.y = scalar;
    this.z = scalar;
    this.w = scalar;
    return this;
  }
  setX(x) {
    this.x = x;
    return this;
  }
  setY(y) {
    this.y = y;
    return this;
  }
  setZ(z) {
    this.z = z;
    return this;
  }
  setW(w) {
    this.w = w;
    return this;
  }
  setComponent(index, value) {
    switch (index) {
      case 0:
        this.x = value;
        break;
      case 1:
        this.y = value;
        break;
      case 2:
        this.z = value;
        break;
      case 3:
        this.w = value;
        break;
      default:
        throw new Error("index is out of range: " + index);
    }
    return this;
  }
  getComponent(index) {
    switch (index) {
      case 0:
        return this.x;
      case 1:
        return this.y;
      case 2:
        return this.z;
      case 3:
        return this.w;
      default:
        throw new Error("index is out of range: " + index);
    }
  }
  clone() {
    return new this.constructor(this.x, this.y, this.z, this.w);
  }
  copy(v) {
    this.x = v.x;
    this.y = v.y;
    this.z = v.z;
    this.w = v.w !== void 0 ? v.w : 1;
    return this;
  }
  add(v) {
    this.x += v.x;
    this.y += v.y;
    this.z += v.z;
    this.w += v.w;
    return this;
  }
  addScalar(s) {
    this.x += s;
    this.y += s;
    this.z += s;
    this.w += s;
    return this;
  }
  addVectors(a, b) {
    this.x = a.x + b.x;
    this.y = a.y + b.y;
    this.z = a.z + b.z;
    this.w = a.w + b.w;
    return this;
  }
  addScaledVector(v, s) {
    this.x += v.x * s;
    this.y += v.y * s;
    this.z += v.z * s;
    this.w += v.w * s;
    return this;
  }
  sub(v) {
    this.x -= v.x;
    this.y -= v.y;
    this.z -= v.z;
    this.w -= v.w;
    return this;
  }
  subScalar(s) {
    this.x -= s;
    this.y -= s;
    this.z -= s;
    this.w -= s;
    return this;
  }
  subVectors(a, b) {
    this.x = a.x - b.x;
    this.y = a.y - b.y;
    this.z = a.z - b.z;
    this.w = a.w - b.w;
    return this;
  }
  multiply(v) {
    this.x *= v.x;
    this.y *= v.y;
    this.z *= v.z;
    this.w *= v.w;
    return this;
  }
  multiplyScalar(scalar) {
    this.x *= scalar;
    this.y *= scalar;
    this.z *= scalar;
    this.w *= scalar;
    return this;
  }
  applyMatrix4(m) {
    const x = this.x, y = this.y, z = this.z, w = this.w;
    const e = m.elements;
    this.x = e[0] * x + e[4] * y + e[8] * z + e[12] * w;
    this.y = e[1] * x + e[5] * y + e[9] * z + e[13] * w;
    this.z = e[2] * x + e[6] * y + e[10] * z + e[14] * w;
    this.w = e[3] * x + e[7] * y + e[11] * z + e[15] * w;
    return this;
  }
  divide(v) {
    this.x /= v.x;
    this.y /= v.y;
    this.z /= v.z;
    this.w /= v.w;
    return this;
  }
  divideScalar(scalar) {
    return this.multiplyScalar(1 / scalar);
  }
  setAxisAngleFromQuaternion(q) {
    this.w = 2 * Math.acos(q.w);
    const s = Math.sqrt(1 - q.w * q.w);
    if (s < 1e-4) {
      this.x = 1;
      this.y = 0;
      this.z = 0;
    } else {
      this.x = q.x / s;
      this.y = q.y / s;
      this.z = q.z / s;
    }
    return this;
  }
  setAxisAngleFromRotationMatrix(m) {
    let angle, x, y, z;
    const epsilon = 0.01, epsilon2 = 0.1, te = m.elements, m11 = te[0], m12 = te[4], m13 = te[8], m21 = te[1], m22 = te[5], m23 = te[9], m31 = te[2], m32 = te[6], m33 = te[10];
    if (Math.abs(m12 - m21) < epsilon && Math.abs(m13 - m31) < epsilon && Math.abs(m23 - m32) < epsilon) {
      if (Math.abs(m12 + m21) < epsilon2 && Math.abs(m13 + m31) < epsilon2 && Math.abs(m23 + m32) < epsilon2 && Math.abs(m11 + m22 + m33 - 3) < epsilon2) {
        this.set(1, 0, 0, 0);
        return this;
      }
      angle = Math.PI;
      const xx = (m11 + 1) / 2;
      const yy = (m22 + 1) / 2;
      const zz = (m33 + 1) / 2;
      const xy = (m12 + m21) / 4;
      const xz = (m13 + m31) / 4;
      const yz = (m23 + m32) / 4;
      if (xx > yy && xx > zz) {
        if (xx < epsilon) {
          x = 0;
          y = 0.707106781;
          z = 0.707106781;
        } else {
          x = Math.sqrt(xx);
          y = xy / x;
          z = xz / x;
        }
      } else if (yy > zz) {
        if (yy < epsilon) {
          x = 0.707106781;
          y = 0;
          z = 0.707106781;
        } else {
          y = Math.sqrt(yy);
          x = xy / y;
          z = yz / y;
        }
      } else {
        if (zz < epsilon) {
          x = 0.707106781;
          y = 0.707106781;
          z = 0;
        } else {
          z = Math.sqrt(zz);
          x = xz / z;
          y = yz / z;
        }
      }
      this.set(x, y, z, angle);
      return this;
    }
    let s = Math.sqrt((m32 - m23) * (m32 - m23) + (m13 - m31) * (m13 - m31) + (m21 - m12) * (m21 - m12));
    if (Math.abs(s) < 1e-3) s = 1;
    this.x = (m32 - m23) / s;
    this.y = (m13 - m31) / s;
    this.z = (m21 - m12) / s;
    this.w = Math.acos((m11 + m22 + m33 - 1) / 2);
    return this;
  }
  setFromMatrixPosition(m) {
    const e = m.elements;
    this.x = e[12];
    this.y = e[13];
    this.z = e[14];
    this.w = e[15];
    return this;
  }
  min(v) {
    this.x = Math.min(this.x, v.x);
    this.y = Math.min(this.y, v.y);
    this.z = Math.min(this.z, v.z);
    this.w = Math.min(this.w, v.w);
    return this;
  }
  max(v) {
    this.x = Math.max(this.x, v.x);
    this.y = Math.max(this.y, v.y);
    this.z = Math.max(this.z, v.z);
    this.w = Math.max(this.w, v.w);
    return this;
  }
  clamp(min, max) {
    this.x = clamp(this.x, min.x, max.x);
    this.y = clamp(this.y, min.y, max.y);
    this.z = clamp(this.z, min.z, max.z);
    this.w = clamp(this.w, min.w, max.w);
    return this;
  }
  clampScalar(minVal, maxVal) {
    this.x = clamp(this.x, minVal, maxVal);
    this.y = clamp(this.y, minVal, maxVal);
    this.z = clamp(this.z, minVal, maxVal);
    this.w = clamp(this.w, minVal, maxVal);
    return this;
  }
  clampLength(min, max) {
    const length = this.length();
    return this.divideScalar(length || 1).multiplyScalar(clamp(length, min, max));
  }
  floor() {
    this.x = Math.floor(this.x);
    this.y = Math.floor(this.y);
    this.z = Math.floor(this.z);
    this.w = Math.floor(this.w);
    return this;
  }
  ceil() {
    this.x = Math.ceil(this.x);
    this.y = Math.ceil(this.y);
    this.z = Math.ceil(this.z);
    this.w = Math.ceil(this.w);
    return this;
  }
  round() {
    this.x = Math.round(this.x);
    this.y = Math.round(this.y);
    this.z = Math.round(this.z);
    this.w = Math.round(this.w);
    return this;
  }
  roundToZero() {
    this.x = Math.trunc(this.x);
    this.y = Math.trunc(this.y);
    this.z = Math.trunc(this.z);
    this.w = Math.trunc(this.w);
    return this;
  }
  negate() {
    this.x = -this.x;
    this.y = -this.y;
    this.z = -this.z;
    this.w = -this.w;
    return this;
  }
  dot(v) {
    return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;
  }
  lengthSq() {
    return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;
  }
  length() {
    return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w);
  }
  manhattanLength() {
    return Math.abs(this.x) + Math.abs(this.y) + Math.abs(this.z) + Math.abs(this.w);
  }
  normalize() {
    return this.divideScalar(this.length() || 1);
  }
  setLength(length) {
    return this.normalize().multiplyScalar(length);
  }
  lerp(v, alpha) {
    this.x += (v.x - this.x) * alpha;
    this.y += (v.y - this.y) * alpha;
    this.z += (v.z - this.z) * alpha;
    this.w += (v.w - this.w) * alpha;
    return this;
  }
  lerpVectors(v1, v2, alpha) {
    this.x = v1.x + (v2.x - v1.x) * alpha;
    this.y = v1.y + (v2.y - v1.y) * alpha;
    this.z = v1.z + (v2.z - v1.z) * alpha;
    this.w = v1.w + (v2.w - v1.w) * alpha;
    return this;
  }
  equals(v) {
    return v.x === this.x && v.y === this.y && v.z === this.z && v.w === this.w;
  }
  fromArray(array, offset = 0) {
    this.x = array[offset];
    this.y = array[offset + 1];
    this.z = array[offset + 2];
    this.w = array[offset + 3];
    return this;
  }
  toArray(array = [], offset = 0) {
    array[offset] = this.x;
    array[offset + 1] = this.y;
    array[offset + 2] = this.z;
    array[offset + 3] = this.w;
    return array;
  }
  fromBufferAttribute(attribute, index) {
    this.x = attribute.getX(index);
    this.y = attribute.getY(index);
    this.z = attribute.getZ(index);
    this.w = attribute.getW(index);
    return this;
  }
  random() {
    this.x = Math.random();
    this.y = Math.random();
    this.z = Math.random();
    this.w = Math.random();
    return this;
  }
  *[Symbol.iterator]() {
    yield this.x;
    yield this.y;
    yield this.z;
    yield this.w;
  }
};
var RenderTarget = class extends EventDispatcher {
  constructor(width = 1, height = 1, options = {}) {
    super();
    this.isRenderTarget = true;
    this.width = width;
    this.height = height;
    this.depth = 1;
    this.scissor = new Vector4(0, 0, width, height);
    this.scissorTest = false;
    this.viewport = new Vector4(0, 0, width, height);
    const image = { width, height, depth: 1 };
    options = Object.assign({
      generateMipmaps: false,
      internalFormat: null,
      minFilter: LinearFilter,
      depthBuffer: true,
      stencilBuffer: false,
      resolveDepthBuffer: true,
      resolveStencilBuffer: true,
      depthTexture: null,
      samples: 0,
      count: 1
    }, options);
    const texture = new Texture(image, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.colorSpace);
    texture.flipY = false;
    texture.generateMipmaps = options.generateMipmaps;
    texture.internalFormat = options.internalFormat;
    this.textures = [];
    const count = options.count;
    for (let i = 0; i < count; i++) {
      this.textures[i] = texture.clone();
      this.textures[i].isRenderTargetTexture = true;
    }
    this.depthBuffer = options.depthBuffer;
    this.stencilBuffer = options.stencilBuffer;
    this.resolveDepthBuffer = options.resolveDepthBuffer;
    this.resolveStencilBuffer = options.resolveStencilBuffer;
    this.depthTexture = options.depthTexture;
    this.samples = options.samples;
  }
  get texture() {
    return this.textures[0];
  }
  set texture(value) {
    this.textures[0] = value;
  }
  setSize(width, height, depth = 1) {
    if (this.width !== width || this.height !== height || this.depth !== depth) {
      this.width = width;
      this.height = height;
      this.depth = depth;
      for (let i = 0, il = this.textures.length; i < il; i++) {
        this.textures[i].image.width = width;
        this.textures[i].image.height = height;
        this.textures[i].image.depth = depth;
      }
      this.dispose();
    }
    this.viewport.set(0, 0, width, height);
    this.scissor.set(0, 0, width, height);
  }
  clone() {
    return new this.constructor().copy(this);
  }
  copy(source) {
    this.width = source.width;
    this.height = source.height;
    this.depth = source.depth;
    this.scissor.copy(source.scissor);
    this.scissorTest = source.scissorTest;
    this.viewport.copy(source.viewport);
    this.textures.length = 0;
    for (let i = 0, il = source.textures.length; i < il; i++) {
      this.textures[i] = source.textures[i].clone();
      this.textures[i].isRenderTargetTexture = true;
    }
    const image = Object.assign({}, source.texture.image);
    this.texture.source = new Source(image);
    this.depthBuffer = source.depthBuffer;
    this.stencilBuffer = source.stencilBuffer;
    this.resolveDepthBuffer = source.resolveDepthBuffer;
    this.resolveStencilBuffer = source.resolveStencilBuffer;
    if (source.depthTexture !== null) this.depthTexture = source.depthTexture.clone();
    this.samples = source.samples;
    return this;
  }
  dispose() {
    this.dispatchEvent({ type: "dispose" });
  }
};
var WebGLRenderTarget = class extends RenderTarget {
  constructor(width = 1, height = 1, options = {}) {
    super(width, height, options);
    this.isWebGLRenderTarget = true;
  }
};
var DataArrayTexture = class extends Texture {
  constructor(data = null, width = 1, height = 1, depth = 1) {
    super(null);
    this.isDataArrayTexture = true;
    this.image = { data, width, height, depth };
    this.magFilter = NearestFilter;
    this.minFilter = NearestFilter;
    this.wrapR = ClampToEdgeWrapping;
    this.generateMipmaps = false;
    this.flipY = false;
    this.unpackAlignment = 1;
    this.layerUpdates = /* @__PURE__ */ new Set();
  }
  addLayerUpdate(layerIndex) {
    this.layerUpdates.add(layerIndex);
  }
  clearLayerUpdates() {
    this.layerUpdates.clear();
  }
};
var Data3DTexture = class extends Texture {
  constructor(data = null, width = 1, height = 1, depth = 1) {
    super(null);
    this.isData3DTexture = true;
    this.image = { data, width, height, depth };
    this.magFilter = NearestFilter;
    this.minFilter = NearestFilter;
    this.wrapR = ClampToEdgeWrapping;
    this.generateMipmaps = false;
    this.flipY = false;
    this.unpackAlignment = 1;
  }
};
var Quaternion = class {
  constructor(x = 0, y = 0, z = 0, w = 1) {
    this.isQuaternion = true;
    this._x = x;
    this._y = y;
    this._z = z;
    this._w = w;
  }
  static slerpFlat(dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t) {
    let x0 = src0[srcOffset0 + 0], y0 = src0[srcOffset0 + 1], z0 = src0[srcOffset0 + 2], w0 = src0[srcOffset0 + 3];
    const x1 = src1[srcOffset1 + 0], y1 = src1[srcOffset1 + 1], z1 = src1[srcOffset1 + 2], w1 = src1[srcOffset1 + 3];
    if (t === 0) {
      dst[dstOffset + 0] = x0;
      dst[dstOffset + 1] = y0;
      dst[dstOffset + 2] = z0;
      dst[dstOffset + 3] = w0;
      return;
    }
    if (t === 1) {
      dst[dstOffset + 0] = x1;
      dst[dstOffset + 1] = y1;
      dst[dstOffset + 2] = z1;
      dst[dstOffset + 3] = w1;
      return;
    }
    if (w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1) {
      let s = 1 - t;
      const cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1, dir = cos >= 0 ? 1 : -1, sqrSin = 1 - cos * cos;
      if (sqrSin > Number.EPSILON) {
        const sin = Math.sqrt(sqrSin), len = Math.atan2(sin, cos * dir);
        s = Math.sin(s * len) / sin;
        t = Math.sin(t * len) / sin;
      }
      const tDir = t * dir;
      x0 = x0 * s + x1 * tDir;
      y0 = y0 * s + y1 * tDir;
      z0 = z0 * s + z1 * tDir;
      w0 = w0 * s + w1 * tDir;
      if (s === 1 - t) {
        const f = 1 / Math.sqrt(x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0);
        x0 *= f;
        y0 *= f;
        z0 *= f;
        w0 *= f;
      }
    }
    dst[dstOffset] = x0;
    dst[dstOffset + 1] = y0;
    dst[dstOffset + 2] = z0;
    dst[dstOffset + 3] = w0;
  }
  static multiplyQuaternionsFlat(dst, dstOffset, src0, srcOffset0, src1, srcOffset1) {
    const x0 = src0[srcOffset0];
    const y0 = src0[srcOffset0 + 1];
    const z0 = src0[srcOffset0 + 2];
    const w0 = src0[srcOffset0 + 3];
    const x1 = src1[srcOffset1];
    const y1 = src1[srcOffset1 + 1];
    const z1 = src1[srcOffset1 + 2];
    const w1 = src1[srcOffset1 + 3];
    dst[dstOffset] = x0 * w1 + w0 * x1 + y0 * z1 - z0 * y1;
    dst[dstOffset + 1] = y0 * w1 + w0 * y1 + z0 * x1 - x0 * z1;
    dst[dstOffset + 2] = z0 * w1 + w0 * z1 + x0 * y1 - y0 * x1;
    dst[dstOffset + 3] = w0 * w1 - x0 * x1 - y0 * y1 - z0 * z1;
    return dst;
  }
  get x() {
    return this._x;
  }
  set x(value) {
    this._x = value;
    this._onChangeCallback();
  }
  get y() {
    return this._y;
  }
  set y(value) {
    this._y = value;
    this._onChangeCallback();
  }
  get z() {
    return this._z;
  }
  set z(value) {
    this._z = value;
    this._onChangeCallback();
  }
  get w() {
    return this._w;
  }
  set w(value) {
    this._w = value;
    this._onChangeCallback();
  }
  set(x, y, z, w) {
    this._x = x;
    this._y = y;
    this._z = z;
    this._w = w;
    this._onChangeCallback();
    return this;
  }
  clone() {
    return new this.constructor(this._x, this._y, this._z, this._w);
  }
  copy(quaternion) {
    this._x = quaternion.x;
    this._y = quaternion.y;
    this._z = quaternion.z;
    this._w = quaternion.w;
    this._onChangeCallback();
    return this;
  }
  setFromEuler(euler, update = true) {
    const x = euler._x, y = euler._y, z = euler._z, order = euler._order;
    const cos = Math.cos;
    const sin = Math.sin;
    const c1 = cos(x / 2);
    const c2 = cos(y / 2);
    const c3 = cos(z / 2);
    const s1 = sin(x / 2);
    const s2 = sin(y / 2);
    const s3 = sin(z / 2);
    switch (order) {
      case "XYZ":
        this._x = s1 * c2 * c3 + c1 * s2 * s3;
        this._y = c1 * s2 * c3 - s1 * c2 * s3;
        this._z = c1 * c2 * s3 + s1 * s2 * c3;
        this._w = c1 * c2 * c3 - s1 * s2 * s3;
        break;
      case "YXZ":
        this._x = s1 * c2 * c3 + c1 * s2 * s3;
        this._y = c1 * s2 * c3 - s1 * c2 * s3;
        this._z = c1 * c2 * s3 - s1 * s2 * c3;
        this._w = c1 * c2 * c3 + s1 * s2 * s3;
        break;
      case "ZXY":
        this._x = s1 * c2 * c3 - c1 * s2 * s3;
        this._y = c1 * s2 * c3 + s1 * c2 * s3;
        this._z = c1 * c2 * s3 + s1 * s2 * c3;
        this._w = c1 * c2 * c3 - s1 * s2 * s3;
        break;
      case "ZYX":
        this._x = s1 * c2 * c3 - c1 * s2 * s3;
        this._y = c1 * s2 * c3 + s1 * c2 * s3;
        this._z = c1 * c2 * s3 - s1 * s2 * c3;
        this._w = c1 * c2 * c3 + s1 * s2 * s3;
        break;
      case "YZX":
        this._x = s1 * c2 * c3 + c1 * s2 * s3;
        this._y = c1 * s2 * c3 + s1 * c2 * s3;
        this._z = c1 * c2 * s3 - s1 * s2 * c3;
        this._w = c1 * c2 * c3 - s1 * s2 * s3;
        break;
      case "XZY":
        this._x = s1 * c2 * c3 - c1 * s2 * s3;
        this._y = c1 * s2 * c3 - s1 * c2 * s3;
        this._z = c1 * c2 * s3 + s1 * s2 * c3;
        this._w = c1 * c2 * c3 + s1 * s2 * s3;
        break;
      default:
        console.warn("THREE.Quaternion: .setFromEuler() encountered an unknown order: " + order);
    }
    if (update === true) this._onChangeCallback();
    return this;
  }
  setFromAxisAngle(axis, angle) {
    const halfAngle = angle / 2, s = Math.sin(halfAngle);
    this._x = axis.x * s;
    this._y = axis.y * s;
    this._z = axis.z * s;
    this._w = Math.cos(halfAngle);
    this._onChangeCallback();
    return this;
  }
  setFromRotationMatrix(m) {
    const te = m.elements, m11 = te[0], m12 = te[4], m13 = te[8], m21 = te[1], m22 = te[5], m23 = te[9], m31 = te[2], m32 = te[6], m33 = te[10], trace = m11 + m22 + m33;
    if (trace > 0) {
      const s = 0.5 / Math.sqrt(trace + 1);
      this._w = 0.25 / s;
      this._x = (m32 - m23) * s;
      this._y = (m13 - m31) * s;
      this._z = (m21 - m12) * s;
    } else if (m11 > m22 && m11 > m33) {
      const s = 2 * Math.sqrt(1 + m11 - m22 - m33);
      this._w = (m32 - m23) / s;
      this._x = 0.25 * s;
      this._y = (m12 + m21) / s;
      this._z = (m13 + m31) / s;
    } else if (m22 > m33) {
      const s = 2 * Math.sqrt(1 + m22 - m11 - m33);
      this._w = (m13 - m31) / s;
      this._x = (m12 + m21) / s;
      this._y = 0.25 * s;
      this._z = (m23 + m32) / s;
    } else {
      const s = 2 * Math.sqrt(1 + m33 - m11 - m22);
      this._w = (m21 - m12) / s;
      this._x = (m13 + m31) / s;
      this._y = (m23 + m32) / s;
      this._z = 0.25 * s;
    }
    this._onChangeCallback();
    return this;
  }
  setFromUnitVectors(vFrom, vTo) {
    let r = vFrom.dot(vTo) + 1;
    if (r < Number.EPSILON) {
      r = 0;
      if (Math.abs(vFrom.x) > Math.abs(vFrom.z)) {
        this._x = -vFrom.y;
        this._y = vFrom.x;
        this._z = 0;
        this._w = r;
      } else {
        this._x = 0;
        this._y = -vFrom.z;
        this._z = vFrom.y;
        this._w = r;
      }
    } else {
      this._x = vFrom.y * vTo.z - vFrom.z * vTo.y;
      this._y = vFrom.z * vTo.x - vFrom.x * vTo.z;
      this._z = vFrom.x * vTo.y - vFrom.y * vTo.x;
      this._w = r;
    }
    return this.normalize();
  }
  angleTo(q) {
    return 2 * Math.acos(Math.abs(clamp(this.dot(q), -1, 1)));
  }
  rotateTowards(q, step) {
    const angle = this.angleTo(q);
    if (angle === 0) return this;
    const t = Math.min(1, step / angle);
    this.slerp(q, t);
    return this;
  }
  identity() {
    return this.set(0, 0, 0, 1);
  }
  invert() {
    return this.conjugate();
  }
  conjugate() {
    this._x *= -1;
    this._y *= -1;
    this._z *= -1;
    this._onChangeCallback();
    return this;
  }
  dot(v) {
    return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;
  }
  lengthSq() {
    return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;
  }
  length() {
    return Math.sqrt(this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w);
  }
  normalize() {
    let l = this.length();
    if (l === 0) {
      this._x = 0;
      this._y = 0;
      this._z = 0;
      this._w = 1;
    } else {
      l = 1 / l;
      this._x = this._x * l;
      this._y = this._y * l;
      this._z = this._z * l;
      this._w = this._w * l;
    }
    this._onChangeCallback();
    return this;
  }
  multiply(q) {
    return this.multiplyQuaternions(this, q);
  }
  premultiply(q) {
    return this.multiplyQuaternions(q, this);
  }
  multiplyQuaternions(a, b) {
    const qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
    const qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;
    this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
    this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
    this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
    this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;
    this._onChangeCallback();
    return this;
  }
  slerp(qb, t) {
    if (t === 0) return this;
    if (t === 1) return this.copy(qb);
    const x = this._x, y = this._y, z = this._z, w = this._w;
    let cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;
    if (cosHalfTheta < 0) {
      this._w = -qb._w;
      this._x = -qb._x;
      this._y = -qb._y;
      this._z = -qb._z;
      cosHalfTheta = -cosHalfTheta;
    } else {
      this.copy(qb);
    }
    if (cosHalfTheta >= 1) {
      this._w = w;
      this._x = x;
      this._y = y;
      this._z = z;
      return this;
    }
    const sqrSinHalfTheta = 1 - cosHalfTheta * cosHalfTheta;
    if (sqrSinHalfTheta <= Number.EPSILON) {
      const s = 1 - t;
      this._w = s * w + t * this._w;
      this._x = s * x + t * this._x;
      this._y = s * y + t * this._y;
      this._z = s * z + t * this._z;
      this.normalize();
      return this;
    }
    const sinHalfTheta = Math.sqrt(sqrSinHalfTheta);
    const halfTheta = Math.atan2(sinHalfTheta, cosHalfTheta);
    const ratioA = Math.sin((1 - t) * halfTheta) / sinHalfTheta, ratioB = Math.sin(t * halfTheta) / sinHalfTheta;
    this._w = w * ratioA + this._w * ratioB;
    this._x = x * ratioA + this._x * ratioB;
    this._y = y * ratioA + this._y * ratioB;
    this._z = z * ratioA + this._z * ratioB;
    this._onChangeCallback();
    return this;
  }
  slerpQuaternions(qa, qb, t) {
    return this.copy(qa).slerp(qb, t);
  }
  random() {
    const theta1 = 2 * Math.PI * Math.random();
    const theta2 = 2 * Math.PI * Math.random();
    const x0 = Math.random();
    const r1 = Math.sqrt(1 - x0);
    const r2 = Math.sqrt(x0);
    return this.set(
      r1 * Math.sin(theta1),
      r1 * Math.cos(theta1),
      r2 * Math.sin(theta2),
      r2 * Math.cos(theta2)
    );
  }
  equals(quaternion) {
    return quaternion._x === this._x && quaternion._y === this._y && quaternion._z === this._z && quaternion._w === this._w;
  }
  fromArray(array, offset = 0) {
    this._x = array[offset];
    this._y = array[offset + 1];
    this._z = array[offset + 2];
    this._w = array[offset + 3];
    this._onChangeCallback();
    return this;
  }
  toArray(array = [], offset = 0) {
    array[offset] = this._x;
    array[offset + 1] = this._y;
    array[offset + 2] = this._z;
    array[offset + 3] = this._w;
    return array;
  }
  fromBufferAttribute(attribute, index) {
    this._x = attribute.getX(index);
    this._y = attribute.getY(index);
    this._z = attribute.getZ(index);
    this._w = attribute.getW(index);
    this._onChangeCallback();
    return this;
  }
  toJSON() {
    return this.toArray();
  }
  _onChange(callback) {
    this._onChangeCallback = callback;
    return this;
  }
  _onChangeCallback() {
  }
  *[Symbol.iterator]() {
    yield this._x;
    yield this._y;
    yield this._z;
    yield this._w;
  }
};
var Vector3 = class _Vector3 {
  constructor(x = 0, y = 0, z = 0) {
    _Vector3.prototype.isVector3 = true;
    this.x = x;
    this.y = y;
    this.z = z;
  }
  set(x, y, z) {
    if (z === void 0) z = this.z;
    this.x = x;
    this.y = y;
    this.z = z;
    return this;
  }
  setScalar(scalar) {
    this.x = scalar;
    this.y = scalar;
    this.z = scalar;
    return this;
  }
  setX(x) {
    this.x = x;
    return this;
  }
  setY(y) {
    this.y = y;
    return this;
  }
  setZ(z) {
    this.z = z;
    return this;
  }
  setComponent(index, value) {
    switch (index) {
      case 0:
        this.x = value;
        break;
      case 1:
        this.y = value;
        break;
      case 2:
        this.z = value;
        break;
      default:
        throw new Error("index is out of range: " + index);
    }
    return this;
  }
  getComponent(index) {
    switch (index) {
      case 0:
        return this.x;
      case 1:
        return this.y;
      case 2:
        return this.z;
      default:
        throw new Error("index is out of range: " + index);
    }
  }
  clone() {
    return new this.constructor(this.x, this.y, this.z);
  }
  copy(v) {
    this.x = v.x;
    this.y = v.y;
    this.z = v.z;
    return this;
  }
  add(v) {
    this.x += v.x;
    this.y += v.y;
    this.z += v.z;
    return this;
  }
  addScalar(s) {
    this.x += s;
    this.y += s;
    this.z += s;
    return this;
  }
  addVectors(a, b) {
    this.x = a.x + b.x;
    this.y = a.y + b.y;
    this.z = a.z + b.z;
    return this;
  }
  addScaledVector(v, s) {
    this.x += v.x * s;
    this.y += v.y * s;
    this.z += v.z * s;
    return this;
  }
  sub(v) {
    this.x -= v.x;
    this.y -= v.y;
    this.z -= v.z;
    return this;
  }
  subScalar(s) {
    this.x -= s;
    this.y -= s;
    this.z -= s;
    return this;
  }
  subVectors(a, b) {
    this.x = a.x - b.x;
    this.y = a.y - b.y;
    this.z = a.z - b.z;
    return this;
  }
  multiply(v) {
    this.x *= v.x;
    this.y *= v.y;
    this.z *= v.z;
    return this;
  }
  multiplyScalar(scalar) {
    this.x *= scalar;
    this.y *= scalar;
    this.z *= scalar;
    return this;
  }
  multiplyVectors(a, b) {
    this.x = a.x * b.x;
    this.y = a.y * b.y;
    this.z = a.z * b.z;
    return this;
  }
  applyEuler(euler) {
    return this.applyQuaternion(_quaternion$4.setFromEuler(euler));
  }
  applyAxisAngle(axis, angle) {
    return this.applyQuaternion(_quaternion$4.setFromAxisAngle(axis, angle));
  }
  applyMatrix3(m) {
    const x = this.x, y = this.y, z = this.z;
    const e = m.elements;
    this.x = e[0] * x + e[3] * y + e[6] * z;
    this.y = e[1] * x + e[4] * y + e[7] * z;
    this.z = e[2] * x + e[5] * y + e[8] * z;
    return this;
  }
  applyNormalMatrix(m) {
    return this.applyMatrix3(m).normalize();
  }
  applyMatrix4(m) {
    const x = this.x, y = this.y, z = this.z;
    const e = m.elements;
    const w = 1 / (e[3] * x + e[7] * y + e[11] * z + e[15]);
    this.x = (e[0] * x + e[4] * y + e[8] * z + e[12]) * w;
    this.y = (e[1] * x + e[5] * y + e[9] * z + e[13]) * w;
    this.z = (e[2] * x + e[6] * y + e[10] * z + e[14]) * w;
    return this;
  }
  applyQuaternion(q) {
    const vx = this.x, vy = this.y, vz = this.z;
    const qx = q.x, qy = q.y, qz = q.z, qw = q.w;
    const tx = 2 * (qy * vz - qz * vy);
    const ty = 2 * (qz * vx - qx * vz);
    const tz = 2 * (qx * vy - qy * vx);
    this.x = vx + qw * tx + qy * tz - qz * ty;
    this.y = vy + qw * ty + qz * tx - qx * tz;
    this.z = vz + qw * tz + qx * ty - qy * tx;
    return this;
  }
  project(camera) {
    return this.applyMatrix4(camera.matrixWorldInverse).applyMatrix4(camera.projectionMatrix);
  }
  unproject(camera) {
    return this.applyMatrix4(camera.projectionMatrixInverse).applyMatrix4(camera.matrixWorld);
  }
  transformDirection(m) {
    const x = this.x, y = this.y, z = this.z;
    const e = m.elements;
    this.x = e[0] * x + e[4] * y + e[8] * z;
    this.y = e[1] * x + e[5] * y + e[9] * z;
    this.z = e[2] * x + e[6] * y + e[10] * z;
    return this.normalize();
  }
  divide(v) {
    this.x /= v.x;
    this.y /= v.y;
    this.z /= v.z;
    return this;
  }
  divideScalar(scalar) {
    return this.multiplyScalar(1 / scalar);
  }
  min(v) {
    this.x = Math.min(this.x, v.x);
    this.y = Math.min(this.y, v.y);
    this.z = Math.min(this.z, v.z);
    return this;
  }
  max(v) {
    this.x = Math.max(this.x, v.x);
    this.y = Math.max(this.y, v.y);
    this.z = Math.max(this.z, v.z);
    return this;
  }
  clamp(min, max) {
    this.x = clamp(this.x, min.x, max.x);
    this.y = clamp(this.y, min.y, max.y);
    this.z = clamp(this.z, min.z, max.z);
    return this;
  }
  clampScalar(minVal, maxVal) {
    this.x = clamp(this.x, minVal, maxVal);
    this.y = clamp(this.y, minVal, maxVal);
    this.z = clamp(this.z, minVal, maxVal);
    return this;
  }
  clampLength(min, max) {
    const length = this.length();
    return this.divideScalar(length || 1).multiplyScalar(clamp(length, min, max));
  }
  floor() {
    this.x = Math.floor(this.x);
    this.y = Math.floor(this.y);
    this.z = Math.floor(this.z);
    return this;
  }
  ceil() {
    this.x = Math.ceil(this.x);
    this.y = Math.ceil(this.y);
    this.z = Math.ceil(this.z);
    return this;
  }
  round() {
    this.x = Math.round(this.x);
    this.y = Math.round(this.y);
    this.z = Math.round(this.z);
    return this;
  }
  roundToZero() {
    this.x = Math.trunc(this.x);
    this.y = Math.trunc(this.y);
    this.z = Math.trunc(this.z);
    return this;
  }
  negate() {
    this.x = -this.x;
    this.y = -this.y;
    this.z = -this.z;
    return this;
  }
  dot(v) {
    return this.x * v.x + this.y * v.y + this.z * v.z;
  }
  // TODO lengthSquared?
  lengthSq() {
    return this.x * this.x + this.y * this.y + this.z * this.z;
  }
  length() {
    return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
  }
  manhattanLength() {
    return Math.abs(this.x) + Math.abs(this.y) + Math.abs(this.z);
  }
  normalize() {
    return this.divideScalar(this.length() || 1);
  }
  setLength(length) {
    return this.normalize().multiplyScalar(length);
  }
  lerp(v, alpha) {
    this.x += (v.x - this.x) * alpha;
    this.y += (v.y - this.y) * alpha;
    this.z += (v.z - this.z) * alpha;
    return this;
  }
  lerpVectors(v1, v2, alpha) {
    this.x = v1.x + (v2.x - v1.x) * alpha;
    this.y = v1.y + (v2.y - v1.y) * alpha;
    this.z = v1.z + (v2.z - v1.z) * alpha;
    return this;
  }
  cross(v) {
    return this.crossVectors(this, v);
  }
  crossVectors(a, b) {
    const ax = a.x, ay = a.y, az = a.z;
    const bx = b.x, by = b.y, bz = b.z;
    this.x = ay * bz - az * by;
    this.y = az * bx - ax * bz;
    this.z = ax * by - ay * bx;
    return this;
  }
  projectOnVector(v) {
    const denominator = v.lengthSq();
    if (denominator === 0) return this.set(0, 0, 0);
    const scalar = v.dot(this) / denominator;
    return this.copy(v).multiplyScalar(scalar);
  }
  projectOnPlane(planeNormal) {
    _vector$c.copy(this).projectOnVector(planeNormal);
    return this.sub(_vector$c);
  }
  reflect(normal) {
    return this.sub(_vector$c.copy(normal).multiplyScalar(2 * this.dot(normal)));
  }
  angleTo(v) {
    const denominator = Math.sqrt(this.lengthSq() * v.lengthSq());
    if (denominator === 0) return Math.PI / 2;
    const theta = this.dot(v) / denominator;
    return Math.acos(clamp(theta, -1, 1));
  }
  distanceTo(v) {
    return Math.sqrt(this.distanceToSquared(v));
  }
  distanceToSquared(v) {
    const dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;
    return dx * dx + dy * dy + dz * dz;
  }
  manhattanDistanceTo(v) {
    return Math.abs(this.x - v.x) + Math.abs(this.y - v.y) + Math.abs(this.z - v.z);
  }
  setFromSpherical(s) {
    return this.setFromSphericalCoords(s.radius, s.phi, s.theta);
  }
  setFromSphericalCoords(radius, phi, theta) {
    const sinPhiRadius = Math.sin(phi) * radius;
    this.x = sinPhiRadius * Math.sin(theta);
    this.y = Math.cos(phi) * radius;
    this.z = sinPhiRadius * Math.cos(theta);
    return this;
  }
  setFromCylindrical(c) {
    return this.setFromCylindricalCoords(c.radius, c.theta, c.y);
  }
  setFromCylindricalCoords(radius, theta, y) {
    this.x = radius * Math.sin(theta);
    this.y = y;
    this.z = radius * Math.cos(theta);
    return this;
  }
  setFromMatrixPosition(m) {
    const e = m.elements;
    this.x = e[12];
    this.y = e[13];
    this.z = e[14];
    return this;
  }
  setFromMatrixScale(m) {
    const sx = this.setFromMatrixColumn(m, 0).length();
    const sy = this.setFromMatrixColumn(m, 1).length();
    const sz = this.setFromMatrixColumn(m, 2).length();
    this.x = sx;
    this.y = sy;
    this.z = sz;
    return this;
  }
  setFromMatrixColumn(m, index) {
    return this.fromArray(m.elements, index * 4);
  }
  setFromMatrix3Column(m, index) {
    return this.fromArray(m.elements, index * 3);
  }
  setFromEuler(e) {
    this.x = e._x;
    this.y = e._y;
    this.z = e._z;
    return this;
  }
  setFromColor(c) {
    this.x = c.r;
    this.y = c.g;
    this.z = c.b;
    return this;
  }
  equals(v) {
    return v.x === this.x && v.y === this.y && v.z === this.z;
  }
  fromArray(array, offset = 0) {
    this.x = array[offset];
    this.y = array[offset + 1];
    this.z = array[offset + 2];
    return this;
  }
  toArray(array = [], offset = 0) {
    array[offset] = this.x;
    array[offset + 1] = this.y;
    array[offset + 2] = this.z;
    return array;
  }
  fromBufferAttribute(attribute, index) {
    this.x = attribute.getX(index);
    this.y = attribute.getY(index);
    this.z = attribute.getZ(index);
    return this;
  }
  random() {
    this.x = Math.random();
    this.y = Math.random();
    this.z = Math.random();
    return this;
  }
  randomDirection() {
    const theta = Math.random() * Math.PI * 2;
    const u = Math.random() * 2 - 1;
    const c = Math.sqrt(1 - u * u);
    this.x = c * Math.cos(theta);
    this.y = u;
    this.z = c * Math.sin(theta);
    return this;
  }
  *[Symbol.iterator]() {
    yield this.x;
    yield this.y;
    yield this.z;
  }
};
var _vector$c = /* @__PURE__ */ new Vector3();
var _quaternion$4 = /* @__PURE__ */ new Quaternion();
var Box3 = class {
  constructor(min = new Vector3(Infinity, Infinity, Infinity), max = new Vector3(-Infinity, -Infinity, -Infinity)) {
    this.isBox3 = true;
    this.min = min;
    this.max = max;
  }
  set(min, max) {
    this.min.copy(min);
    this.max.copy(max);
    return this;
  }
  setFromArray(array) {
    this.makeEmpty();
    for (let i = 0, il = array.length; i < il; i += 3) {
      this.expandByPoint(_vector$b.fromArray(array, i));
    }
    return this;
  }
  setFromBufferAttribute(attribute) {
    this.makeEmpty();
    for (let i = 0, il = attribute.count; i < il; i++) {
      this.expandByPoint(_vector$b.fromBufferAttribute(attribute, i));
    }
    return this;
  }
  setFromPoints(points) {
    this.makeEmpty();
    for (let i = 0, il = points.length; i < il; i++) {
      this.expandByPoint(points[i]);
    }
    return this;
  }
  setFromCenterAndSize(center, size) {
    const halfSize = _vector$b.copy(size).multiplyScalar(0.5);
    this.min.copy(center).sub(halfSize);
    this.max.copy(center).add(halfSize);
    return this;
  }
  setFromObject(object, precise = false) {
    this.makeEmpty();
    return this.expandByObject(object, precise);
  }
  clone() {
    return new this.constructor().copy(this);
  }
  copy(box) {
    this.min.copy(box.min);
    this.max.copy(box.max);
    return this;
  }
  makeEmpty() {
    this.min.x = this.min.y = this.min.z = Infinity;
    this.max.x = this.max.y = this.max.z = -Infinity;
    return this;
  }
  isEmpty() {
    return this.max.x < this.min.x || this.max.y < this.min.y || this.max.z < this.min.z;
  }
  getCenter(target) {
    return this.isEmpty() ? target.set(0, 0, 0) : target.addVectors(this.min, this.max).multiplyScalar(0.5);
  }
  getSize(target) {
    return this.isEmpty() ? target.set(0, 0, 0) : target.subVectors(this.max, this.min);
  }
  expandByPoint(point) {
    this.min.min(point);
    this.max.max(point);
    return this;
  }
  expandByVector(vector) {
    this.min.sub(vector);
    this.max.add(vector);
    return this;
  }
  expandByScalar(scalar) {
    this.min.addScalar(-scalar);
    this.max.addScalar(scalar);
    return this;
  }
  expandByObject(object, precise = false) {
    object.updateWorldMatrix(false, false);
    const geometry = object.geometry;
    if (geometry !== void 0) {
      const positionAttribute = geometry.getAttribute("position");
      if (precise === true && positionAttribute !== void 0 && object.isInstancedMesh !== true) {
        for (let i = 0, l = positionAttribute.count; i < l; i++) {
          if (object.isMesh === true) {
            object.getVertexPosition(i, _vector$b);
          } else {
            _vector$b.fromBufferAttribute(positionAttribute, i);
          }
          _vector$b.applyMatrix4(object.matrixWorld);
          this.expandByPoint(_vector$b);
        }
      } else {
        if (object.boundingBox !== void 0) {
          if (object.boundingBox === null) {
            object.computeBoundingBox();
          }
          _box$4.copy(object.boundingBox);
        } else {
          if (geometry.boundingBox === null) {
            geometry.computeBoundingBox();
          }
          _box$4.copy(geometry.boundingBox);
        }
        _box$4.applyMatrix4(object.matrixWorld);
        this.union(_box$4);
      }
    }
    const children = object.children;
    for (let i = 0, l = children.length; i < l; i++) {
      this.expandByObject(children[i], precise);
    }
    return this;
  }
  containsPoint(point) {
    return point.x >= this.min.x && point.x <= this.max.x && point.y >= this.min.y && point.y <= this.max.y && point.z >= this.min.z && point.z <= this.max.z;
  }
  containsBox(box) {
    return this.min.x <= box.min.x && box.max.x <= this.max.x && this.min.y <= box.min.y && box.max.y <= this.max.y && this.min.z <= box.min.z && box.max.z <= this.max.z;
  }
  getParameter(point, target) {
    return target.set(
      (point.x - this.min.x) / (this.max.x - this.min.x),
      (point.y - this.min.y) / (this.max.y - this.min.y),
      (point.z - this.min.z) / (this.max.z - this.min.z)
    );
  }
  intersectsBox(box) {
    return box.max.x >= this.min.x && box.min.x <= this.max.x && box.max.y >= this.min.y && box.min.y <= this.max.y && box.max.z >= this.min.z && box.min.z <= this.max.z;
  }
  intersectsSphere(sphere) {
    this.clampPoint(sphere.center, _vector$b);
    return _vector$b.distanceToSquared(sphere.center) <= sphere.radius * sphere.radius;
  }
  intersectsPlane(plane) {
    let min, max;
    if (plane.normal.x > 0) {
      min = plane.normal.x * this.min.x;
      max = plane.normal.x * this.max.x;
    } else {
      min = plane.normal.x * this.max.x;
      max = plane.normal.x * this.min.x;
    }
    if (plane.normal.y > 0) {
      min += plane.normal.y * this.min.y;
      max += plane.normal.y * this.max.y;
    } else {
      min += plane.normal.y * this.max.y;
      max += plane.normal.y * this.min.y;
    }
    if (plane.normal.z > 0) {
      min += plane.normal.z * this.min.z;
      max += plane.normal.z * this.max.z;
    } else {
      min += plane.normal.z * this.max.z;
      max += plane.normal.z * this.min.z;
    }
    return min <= -plane.constant && max >= -plane.constant;
  }
  intersectsTriangle(triangle) {
    if (this.isEmpty()) {
      return false;
    }
    this.getCenter(_center);
    _extents.subVectors(this.max, _center);
    _v0$2.subVectors(triangle.a, _center);
    _v1$7.subVectors(triangle.b, _center);
    _v2$4.subVectors(triangle.c, _center);
    _f0.subVectors(_v1$7, _v0$2);
    _f1.subVectors(_v2$4, _v1$7);
    _f2.subVectors(_v0$2, _v2$4);
    let axes = [
      0,
      -_f0.z,
      _f0.y,
      0,
      -_f1.z,
      _f1.y,
      0,
      -_f2.z,
      _f2.y,
      _f0.z,
      0,
      -_f0.x,
      _f1.z,
      0,
      -_f1.x,
      _f2.z,
      0,
      -_f2.x,
      -_f0.y,
      _f0.x,
      0,
      -_f1.y,
      _f1.x,
      0,
      -_f2.y,
      _f2.x,
      0
    ];
    if (!satForAxes(axes, _v0$2, _v1$7, _v2$4, _extents)) {
      return false;
    }
    axes = [1, 0, 0, 0, 1, 0, 0, 0, 1];
    if (!satForAxes(axes, _v0$2, _v1$7, _v2$4, _extents)) {
      return false;
    }
    _triangleNormal.crossVectors(_f0, _f1);
    axes = [_triangleNormal.x, _triangleNormal.y, _triangleNormal.z];
    return satForAxes(axes, _v0$2, _v1$7, _v2$4, _extents);
  }
  clampPoint(point, target) {
    return target.copy(point).clamp(this.min, this.max);
  }
  distanceToPoint(point) {
    return this.clampPoint(point, _vector$b).distanceTo(point);
  }
  getBoundingSphere(target) {
    if (this.isEmpty()) {
      target.makeEmpty();
    } else {
      this.getCenter(target.center);
      target.radius = this.getSize(_vector$b).length() * 0.5;
    }
    return target;
  }
  intersect(box) {
    this.min.max(box.min);
    this.max.min(box.max);
    if (this.isEmpty()) this.makeEmpty();
    return this;
  }
  union(box) {
    this.min.min(box.min);
    this.max.max(box.max);
    return this;
  }
  applyMatrix4(matrix) {
    if (this.isEmpty()) return this;
    _points[0].set(this.min.x, this.min.y, this.min.z).applyMatrix4(matrix);
    _points[1].set(this.min.x, this.min.y, this.max.z).applyMatrix4(matrix);
    _points[2].set(this.min.x, this.max.y, this.min.z).applyMatrix4(matrix);
    _points[3].set(this.min.x, this.max.y, this.max.z).applyMatrix4(matrix);
    _points[4].set(this.max.x, this.min.y, this.min.z).applyMatrix4(matrix);
    _points[5].set(this.max.x, this.min.y, this.max.z).applyMatrix4(matrix);
    _points[6].set(this.max.x, this.max.y, this.min.z).applyMatrix4(matrix);
    _points[7].set(this.max.x, this.max.y, this.max.z).applyMatrix4(matrix);
    this.setFromPoints(_points);
    return this;
  }
  translate(offset) {
    this.min.add(offset);
    this.max.add(offset);
    return this;
  }
  equals(box) {
    return box.min.equals(this.min) && box.max.equals(this.max);
  }
};
var _points = [
  /* @__PURE__ */ new Vector3(),
  /* @__PURE__ */ new Vector3(),
  /* @__PURE__ */ new Vector3(),
  /* @__PURE__ */ new Vector3(),
  /* @__PURE__ */ new Vector3(),
  /* @__PURE__ */ new Vector3(),
  /* @__PURE__ */ new Vector3(),
  /* @__PURE__ */ new Vector3()
];
var _vector$b = /* @__PURE__ */ new Vector3();
var _box$4 = /* @__PURE__ */ new Box3();
var _v0$2 = /* @__PURE__ */ new Vector3();
var _v1$7 = /* @__PURE__ */ new Vector3();
var _v2$4 = /* @__PURE__ */ new Vector3();
var _f0 = /* @__PURE__ */ new Vector3();
var _f1 = /* @__PURE__ */ new Vector3();
var _f2 = /* @__PURE__ */ new Vector3();
var _center = /* @__PURE__ */ new Vector3();
var _extents = /* @__PURE__ */ new Vector3();
var _triangleNormal = /* @__PURE__ */ new Vector3();
var _testAxis = /* @__PURE__ */ new Vector3();
function satForAxes(axes, v0, v1, v2, extents) {
  for (let i = 0, j = axes.length - 3; i <= j; i += 3) {
    _testAxis.fromArray(axes, i);
    const r = extents.x * Math.abs(_testAxis.x) + extents.y * Math.abs(_testAxis.y) + extents.z * Math.abs(_testAxis.z);
    const p0 = v0.dot(_testAxis);
    const p1 = v1.dot(_testAxis);
    const p2 = v2.dot(_testAxis);
    if (Math.max(-Math.max(p0, p1, p2), Math.min(p0, p1, p2)) > r) {
      return false;
    }
  }
  return true;
}
var _box$3 = /* @__PURE__ */ new Box3();
var _v1$6 = /* @__PURE__ */ new Vector3();
var _v2$3 = /* @__PURE__ */ new Vector3();
var Sphere = class {
  constructor(center = new Vector3(), radius = -1) {
    this.isSphere = true;
    this.center = center;
    this.radius = radius;
  }
  set(center, radius) {
    this.center.copy(center);
    this.radius = radius;
    return this;
  }
  setFromPoints(points, optionalCenter) {
    const center = this.center;
    if (optionalCenter !== void 0) {
      center.copy(optionalCenter);
    } else {
      _box$3.setFromPoints(points).getCenter(center);
    }
    let maxRadiusSq = 0;
    for (let i = 0, il = points.length; i < il; i++) {
      maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(points[i]));
    }
    this.radius = Math.sqrt(maxRadiusSq);
    return this;
  }
  copy(sphere) {
    this.center.copy(sphere.center);
    this.radius = sphere.radius;
    return this;
  }
  isEmpty() {
    return this.radius < 0;
  }
  makeEmpty() {
    this.center.set(0, 0, 0);
    this.radius = -1;
    return this;
  }
  containsPoint(point) {
    return point.distanceToSquared(this.center) <= this.radius * this.radius;
  }
  distanceToPoint(point) {
    return point.distanceTo(this.center) - this.radius;
  }
  intersectsSphere(sphere) {
    const radiusSum = this.radius + sphere.radius;
    return sphere.center.distanceToSquared(this.center) <= radiusSum * radiusSum;
  }
  intersectsBox(box) {
    return box.intersectsSphere(this);
  }
  intersectsPlane(plane) {
    return Math.abs(plane.distanceToPoint(this.center)) <= this.radius;
  }
  clampPoint(point, target) {
    const deltaLengthSq = this.center.distanceToSquared(point);
    target.copy(point);
    if (deltaLengthSq > this.radius * this.radius) {
      target.sub(this.center).normalize();
      target.multiplyScalar(this.radius).add(this.center);
    }
    return target;
  }
  getBoundingBox(target) {
    if (this.isEmpty()) {
      target.makeEmpty();
      return target;
    }
    target.set(this.center, this.center);
    target.expandByScalar(this.radius);
    return target;
  }
  applyMatrix4(matrix) {
    this.center.applyMatrix4(matrix);
    this.radius = this.radius * matrix.getMaxScaleOnAxis();
    return this;
  }
  translate(offset) {
    this.center.add(offset);
    return this;
  }
  expandByPoint(point) {
    if (this.isEmpty()) {
      this.center.copy(point);
      this.radius = 0;
      return this;
    }
    _v1$6.subVectors(point, this.center);
    const lengthSq = _v1$6.lengthSq();
    if (lengthSq > this.radius * this.radius) {
      const length = Math.sqrt(lengthSq);
      const delta = (length - this.radius) * 0.5;
      this.center.addScaledVector(_v1$6, delta / length);
      this.radius += delta;
    }
    return this;
  }
  union(sphere) {
    if (sphere.isEmpty()) {
      return this;
    }
    if (this.isEmpty()) {
      this.copy(sphere);
      return this;
    }
    if (this.center.equals(sphere.center) === true) {
      this.radius = Math.max(this.radius, sphere.radius);
    } else {
      _v2$3.subVectors(sphere.center, this.center).setLength(sphere.radius);
      this.expandByPoint(_v1$6.copy(sphere.center).add(_v2$3));
      this.expandByPoint(_v1$6.copy(sphere.center).sub(_v2$3));
    }
    return this;
  }
  equals(sphere) {
    return sphere.center.equals(this.center) && sphere.radius === this.radius;
  }
  clone() {
    return new this.constructor().copy(this);
  }
};
var _vector$a = /* @__PURE__ */ new Vector3();
var _segCenter = /* @__PURE__ */ new Vector3();
var _segDir = /* @__PURE__ */ new Vector3();
var _diff = /* @__PURE__ */ new Vector3();
var _edge1 = /* @__PURE__ */ new Vector3();
var _edge2 = /* @__PURE__ */ new Vector3();
var _normal$1 = /* @__PURE__ */ new Vector3();
var Ray = class {
  constructor(origin = new Vector3(), direction = new Vector3(0, 0, -1)) {
    this.origin = origin;
    this.direction = direction;
  }
  set(origin, direction) {
    this.origin.copy(origin);
    this.direction.copy(direction);
    return this;
  }
  copy(ray) {
    this.origin.copy(ray.origin);
    this.direction.copy(ray.direction);
    return this;
  }
  at(t, target) {
    return target.copy(this.origin).addScaledVector(this.direction, t);
  }
  lookAt(v) {
    this.direction.copy(v).sub(this.origin).normalize();
    return this;
  }
  recast(t) {
    this.origin.copy(this.at(t, _vector$a));
    return this;
  }
  closestPointToPoint(point, target) {
    target.subVectors(point, this.origin);
    const directionDistance = target.dot(this.direction);
    if (directionDistance < 0) {
      return target.copy(this.origin);
    }
    return target.copy(this.origin).addScaledVector(this.direction, directionDistance);
  }
  distanceToPoint(point) {
    return Math.sqrt(this.distanceSqToPoint(point));
  }
  distanceSqToPoint(point) {
    const directionDistance = _vector$a.subVectors(point, this.origin).dot(this.direction);
    if (directionDistance < 0) {
      return this.origin.distanceToSquared(point);
    }
    _vector$a.copy(this.origin).addScaledVector(this.direction, directionDistance);
    return _vector$a.distanceToSquared(point);
  }
  distanceSqToSegment(v0, v1, optionalPointOnRay, optionalPointOnSegment) {
    _segCenter.copy(v0).add(v1).multiplyScalar(0.5);
    _segDir.copy(v1).sub(v0).normalize();
    _diff.copy(this.origin).sub(_segCenter);
    const segExtent = v0.distanceTo(v1) * 0.5;
    const a01 = -this.direction.dot(_segDir);
    const b0 = _diff.dot(this.direction);
    const b1 = -_diff.dot(_segDir);
    const c = _diff.lengthSq();
    const det = Math.abs(1 - a01 * a01);
    let s0, s1, sqrDist, extDet;
    if (det > 0) {
      s0 = a01 * b1 - b0;
      s1 = a01 * b0 - b1;
      extDet = segExtent * det;
      if (s0 >= 0) {
        if (s1 >= -extDet) {
          if (s1 <= extDet) {
            const invDet = 1 / det;
            s0 *= invDet;
            s1 *= invDet;
            sqrDist = s0 * (s0 + a01 * s1 + 2 * b0) + s1 * (a01 * s0 + s1 + 2 * b1) + c;
          } else {
            s1 = segExtent;
            s0 = Math.max(0, -(a01 * s1 + b0));
            sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
          }
        } else {
          s1 = -segExtent;
          s0 = Math.max(0, -(a01 * s1 + b0));
          sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
        }
      } else {
        if (s1 <= -extDet) {
          s0 = Math.max(0, -(-a01 * segExtent + b0));
          s1 = s0 > 0 ? -segExtent : Math.min(Math.max(-segExtent, -b1), segExtent);
          sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
        } else if (s1 <= extDet) {
          s0 = 0;
          s1 = Math.min(Math.max(-segExtent, -b1), segExtent);
          sqrDist = s1 * (s1 + 2 * b1) + c;
        } else {
          s0 = Math.max(0, -(a01 * segExtent + b0));
          s1 = s0 > 0 ? segExtent : Math.min(Math.max(-segExtent, -b1), segExtent);
          sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
        }
      }
    } else {
      s1 = a01 > 0 ? -segExtent : segExtent;
      s0 = Math.max(0, -(a01 * s1 + b0));
      sqrDist = -s0 * s0 + s1 * (s1 + 2 * b1) + c;
    }
    if (optionalPointOnRay) {
      optionalPointOnRay.copy(this.origin).addScaledVector(this.direction, s0);
    }
    if (optionalPointOnSegment) {
      optionalPointOnSegment.copy(_segCenter).addScaledVector(_segDir, s1);
    }
    return sqrDist;
  }
  intersectSphere(sphere, target) {
    _vector$a.subVectors(sphere.center, this.origin);
    const tca = _vector$a.dot(this.direction);
    const d2 = _vector$a.dot(_vector$a) - tca * tca;
    const radius2 = sphere.radius * sphere.radius;
    if (d2 > radius2) return null;
    const thc = Math.sqrt(radius2 - d2);
    const t0 = tca - thc;
    const t1 = tca + thc;
    if (t1 < 0) return null;
    if (t0 < 0) return this.at(t1, target);
    return this.at(t0, target);
  }
  intersectsSphere(sphere) {
    return this.distanceSqToPoint(sphere.center) <= sphere.radius * sphere.radius;
  }
  distanceToPlane(plane) {
    const denominator = plane.normal.dot(this.direction);
    if (denominator === 0) {
      if (plane.distanceToPoint(this.origin) === 0) {
        return 0;
      }
      return null;
    }
    const t = -(this.origin.dot(plane.normal) + plane.constant) / denominator;
    return t >= 0 ? t : null;
  }
  intersectPlane(plane, target) {
    const t = this.distanceToPlane(plane);
    if (t === null) {
      return null;
    }
    return this.at(t, target);
  }
  intersectsPlane(plane) {
    const distToPoint = plane.distanceToPoint(this.origin);
    if (distToPoint === 0) {
      return true;
    }
    const denominator = plane.normal.dot(this.direction);
    if (denominator * distToPoint < 0) {
      return true;
    }
    return false;
  }
  intersectBox(box, target) {
    let tmin, tmax, tymin, tymax, tzmin, tzmax;
    const invdirx = 1 / this.direction.x, invdiry = 1 / this.direction.y, invdirz = 1 / this.direction.z;
    const origin = this.origin;
    if (invdirx >= 0) {
      tmin = (box.min.x - origin.x) * invdirx;
      tmax = (box.max.x - origin.x) * invdirx;
    } else {
      tmin = (box.max.x - origin.x) * invdirx;
      tmax = (box.min.x - origin.x) * invdirx;
    }
    if (invdiry >= 0) {
      tymin = (box.min.y - origin.y) * invdiry;
      tymax = (box.max.y - origin.y) * invdiry;
    } else {
      tymin = (box.max.y - origin.y) * invdiry;
      tymax = (box.min.y - origin.y) * invdiry;
    }
    if (tmin > tymax || tymin > tmax) return null;
    if (tymin > tmin || isNaN(tmin)) tmin = tymin;
    if (tymax < tmax || isNaN(tmax)) tmax = tymax;
    if (invdirz >= 0) {
      tzmin = (box.min.z - origin.z) * invdirz;
      tzmax = (box.max.z - origin.z) * invdirz;
    } else {
      tzmin = (box.max.z - origin.z) * invdirz;
      tzmax = (box.min.z - origin.z) * invdirz;
    }
    if (tmin > tzmax || tzmin > tmax) return null;
    if (tzmin > tmin || tmin !== tmin) tmin = tzmin;
    if (tzmax < tmax || tmax !== tmax) tmax = tzmax;
    if (tmax < 0) return null;
    return this.at(tmin >= 0 ? tmin : tmax, target);
  }
  intersectsBox(box) {
    return this.intersectBox(box, _vector$a) !== null;
  }
  intersectTriangle(a, b, c, backfaceCulling, target) {
    _edge1.subVectors(b, a);
    _edge2.subVectors(c, a);
    _normal$1.crossVectors(_edge1, _edge2);
    let DdN = this.direction.dot(_normal$1);
    let sign;
    if (DdN > 0) {
      if (backfaceCulling) return null;
      sign = 1;
    } else if (DdN < 0) {
      sign = -1;
      DdN = -DdN;
    } else {
      return null;
    }
    _diff.subVectors(this.origin, a);
    const DdQxE2 = sign * this.direction.dot(_edge2.crossVectors(_diff, _edge2));
    if (DdQxE2 < 0) {
      return null;
    }
    const DdE1xQ = sign * this.direction.dot(_edge1.cross(_diff));
    if (DdE1xQ < 0) {
      return null;
    }
    if (DdQxE2 + DdE1xQ > DdN) {
      return null;
    }
    const QdN = -sign * _diff.dot(_normal$1);
    if (QdN < 0) {
      return null;
    }
    return this.at(QdN / DdN, target);
  }
  applyMatrix4(matrix4) {
    this.origin.applyMatrix4(matrix4);
    this.direction.transformDirection(matrix4);
    return this;
  }
  equals(ray) {
    return ray.origin.equals(this.origin) && ray.direction.equals(this.direction);
  }
  clone() {
    return new this.constructor().copy(this);
  }
};
var Matrix4 = class _Matrix4 {
  constructor(n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44) {
    _Matrix4.prototype.isMatrix4 = true;
    this.elements = [
      1,
      0,
      0,
      0,
      0,
      1,
      0,
      0,
      0,
      0,
      1,
      0,
      0,
      0,
      0,
      1
    ];
    if (n11 !== void 0) {
      this.set(n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44);
    }
  }
  set(n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44) {
    const te = this.elements;
    te[0] = n11;
    te[4] = n12;
    te[8] = n13;
    te[12] = n14;
    te[1] = n21;
    te[5] = n22;
    te[9] = n23;
    te[13] = n24;
    te[2] = n31;
    te[6] = n32;
    te[10] = n33;
    te[14] = n34;
    te[3] = n41;
    te[7] = n42;
    te[11] = n43;
    te[15] = n44;
    return this;
  }
  identity() {
    this.set(
      1,
      0,
      0,
      0,
      0,
      1,
      0,
      0,
      0,
      0,
      1,
      0,
      0,
      0,
      0,
      1
    );
    return this;
  }
  clone() {
    return new _Matrix4().fromArray(this.elements);
  }
  copy(m) {
    const te = this.elements;
    const me = m.elements;
    te[0] = me[0];
    te[1] = me[1];
    te[2] = me[2];
    te[3] = me[3];
    te[4] = me[4];
    te[5] = me[5];
    te[6] = me[6];
    te[7] = me[7];
    te[8] = me[8];
    te[9] = me[9];
    te[10] = me[10];
    te[11] = me[11];
    te[12] = me[12];
    te[13] = me[13];
    te[14] = me[14];
    te[15] = me[15];
    return this;
  }
  copyPosition(m) {
    const te = this.elements, me = m.elements;
    te[12] = me[12];
    te[13] = me[13];
    te[14] = me[14];
    return this;
  }
  setFromMatrix3(m) {
    const me = m.elements;
    this.set(
      me[0],
      me[3],
      me[6],
      0,
      me[1],
      me[4],
      me[7],
      0,
      me[2],
      me[5],
      me[8],
      0,
      0,
      0,
      0,
      1
    );
    return this;
  }
  extractBasis(xAxis, yAxis, zAxis) {
    xAxis.setFromMatrixColumn(this, 0);
    yAxis.setFromMatrixColumn(this, 1);
    zAxis.setFromMatrixColumn(this, 2);
    return this;
  }
  makeBasis(xAxis, yAxis, zAxis) {
    this.set(
      xAxis.x,
      yAxis.x,
      zAxis.x,
      0,
      xAxis.y,
      yAxis.y,
      zAxis.y,
      0,
      xAxis.z,
      yAxis.z,
      zAxis.z,
      0,
      0,
      0,
      0,
      1
    );
    return this;
  }
  extractRotation(m) {
    const te = this.elements;
    const me = m.elements;
    const scaleX = 1 / _v1$5.setFromMatrixColumn(m, 0).length();
    const scaleY = 1 / _v1$5.setFromMatrixColumn(m, 1).length();
    const scaleZ = 1 / _v1$5.setFromMatrixColumn(m, 2).length();
    te[0] = me[0] * scaleX;
    te[1] = me[1] * scaleX;
    te[2] = me[2] * scaleX;
    te[3] = 0;
    te[4] = me[4] * scaleY;
    te[5] = me[5] * scaleY;
    te[6] = me[6] * scaleY;
    te[7] = 0;
    te[8] = me[8] * scaleZ;
    te[9] = me[9] * scaleZ;
    te[10] = me[10] * scaleZ;
    te[11] = 0;
    te[12] = 0;
    te[13] = 0;
    te[14] = 0;
    te[15] = 1;
    return this;
  }
  makeRotationFromEuler(euler) {
    const te = this.elements;
    const x = euler.x, y = euler.y, z = euler.z;
    const a = Math.cos(x), b = Math.sin(x);
    const c = Math.cos(y), d = Math.sin(y);
    const e = Math.cos(z), f = Math.sin(z);
    if (euler.order === "XYZ") {
      const ae = a * e, af = a * f, be = b * e, bf = b * f;
      te[0] = c * e;
      te[4] = -c * f;
      te[8] = d;
      te[1] = af + be * d;
      te[5] = ae - bf * d;
      te[9] = -b * c;
      te[2] = bf - ae * d;
      te[6] = be + af * d;
      te[10] = a * c;
    } else if (euler.order === "YXZ") {
      const ce = c * e, cf = c * f, de = d * e, df = d * f;
      te[0] = ce + df * b;
      te[4] = de * b - cf;
      te[8] = a * d;
      te[1] = a * f;
      te[5] = a * e;
      te[9] = -b;
      te[2] = cf * b - de;
      te[6] = df + ce * b;
      te[10] = a * c;
    } else if (euler.order === "ZXY") {
      const ce = c * e, cf = c * f, de = d * e, df = d * f;
      te[0] = ce - df * b;
      te[4] = -a * f;
      te[8] = de + cf * b;
      te[1] = cf + de * b;
      te[5] = a * e;
      te[9] = df - ce * b;
      te[2] = -a * d;
      te[6] = b;
      te[10] = a * c;
    } else if (euler.order === "ZYX") {
      const ae = a * e, af = a * f, be = b * e, bf = b * f;
      te[0] = c * e;
      te[4] = be * d - af;
      te[8] = ae * d + bf;
      te[1] = c * f;
      te[5] = bf * d + ae;
      te[9] = af * d - be;
      te[2] = -d;
      te[6] = b * c;
      te[10] = a * c;
    } else if (euler.order === "YZX") {
      const ac = a * c, ad = a * d, bc = b * c, bd = b * d;
      te[0] = c * e;
      te[4] = bd - ac * f;
      te[8] = bc * f + ad;
      te[1] = f;
      te[5] = a * e;
      te[9] = -b * e;
      te[2] = -d * e;
      te[6] = ad * f + bc;
      te[10] = ac - bd * f;
    } else if (euler.order === "XZY") {
      const ac = a * c, ad = a * d, bc = b * c, bd = b * d;
      te[0] = c * e;
      te[4] = -f;
      te[8] = d * e;
      te[1] = ac * f + bd;
      te[5] = a * e;
      te[9] = ad * f - bc;
      te[2] = bc * f - ad;
      te[6] = b * e;
      te[10] = bd * f + ac;
    }
    te[3] = 0;
    te[7] = 0;
    te[11] = 0;
    te[12] = 0;
    te[13] = 0;
    te[14] = 0;
    te[15] = 1;
    return this;
  }
  makeRotationFromQuaternion(q) {
    return this.compose(_zero, q, _one);
  }
  lookAt(eye, target, up) {
    const te = this.elements;
    _z.subVectors(eye, target);
    if (_z.lengthSq() === 0) {
      _z.z = 1;
    }
    _z.normalize();
    _x.crossVectors(up, _z);
    if (_x.lengthSq() === 0) {
      if (Math.abs(up.z) === 1) {
        _z.x += 1e-4;
      } else {
        _z.z += 1e-4;
      }
      _z.normalize();
      _x.crossVectors(up, _z);
    }
    _x.normalize();
    _y.crossVectors(_z, _x);
    te[0] = _x.x;
    te[4] = _y.x;
    te[8] = _z.x;
    te[1] = _x.y;
    te[5] = _y.y;
    te[9] = _z.y;
    te[2] = _x.z;
    te[6] = _y.z;
    te[10] = _z.z;
    return this;
  }
  multiply(m) {
    return this.multiplyMatrices(this, m);
  }
  premultiply(m) {
    return this.multiplyMatrices(m, this);
  }
  multiplyMatrices(a, b) {
    const ae = a.elements;
    const be = b.elements;
    const te = this.elements;
    const a11 = ae[0], a12 = ae[4], a13 = ae[8], a14 = ae[12];
    const a21 = ae[1], a22 = ae[5], a23 = ae[9], a24 = ae[13];
    const a31 = ae[2], a32 = ae[6], a33 = ae[10], a34 = ae[14];
    const a41 = ae[3], a42 = ae[7], a43 = ae[11], a44 = ae[15];
    const b11 = be[0], b12 = be[4], b13 = be[8], b14 = be[12];
    const b21 = be[1], b22 = be[5], b23 = be[9], b24 = be[13];
    const b31 = be[2], b32 = be[6], b33 = be[10], b34 = be[14];
    const b41 = be[3], b42 = be[7], b43 = be[11], b44 = be[15];
    te[0] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
    te[4] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
    te[8] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
    te[12] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;
    te[1] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
    te[5] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
    te[9] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
    te[13] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;
    te[2] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
    te[6] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
    te[10] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
    te[14] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;
    te[3] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
    te[7] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
    te[11] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
    te[15] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;
    return this;
  }
  multiplyScalar(s) {
    const te = this.elements;
    te[0] *= s;
    te[4] *= s;
    te[8] *= s;
    te[12] *= s;
    te[1] *= s;
    te[5] *= s;
    te[9] *= s;
    te[13] *= s;
    te[2] *= s;
    te[6] *= s;
    te[10] *= s;
    te[14] *= s;
    te[3] *= s;
    te[7] *= s;
    te[11] *= s;
    te[15] *= s;
    return this;
  }
  determinant() {
    const te = this.elements;
    const n11 = te[0], n12 = te[4], n13 = te[8], n14 = te[12];
    const n21 = te[1], n22 = te[5], n23 = te[9], n24 = te[13];
    const n31 = te[2], n32 = te[6], n33 = te[10], n34 = te[14];
    const n41 = te[3], n42 = te[7], n43 = te[11], n44 = te[15];
    return n41 * (+n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34) + n42 * (+n11 * n23 * n34 - n11 * n24 * n33 + n14 * n21 * n33 - n13 * n21 * n34 + n13 * n24 * n31 - n14 * n23 * n31) + n43 * (+n11 * n24 * n32 - n11 * n22 * n34 - n14 * n21 * n32 + n12 * n21 * n34 + n14 * n22 * n31 - n12 * n24 * n31) + n44 * (-n13 * n22 * n31 - n11 * n23 * n32 + n11 * n22 * n33 + n13 * n21 * n32 - n12 * n21 * n33 + n12 * n23 * n31);
  }
  transpose() {
    const te = this.elements;
    let tmp;
    tmp = te[1];
    te[1] = te[4];
    te[4] = tmp;
    tmp = te[2];
    te[2] = te[8];
    te[8] = tmp;
    tmp = te[6];
    te[6] = te[9];
    te[9] = tmp;
    tmp = te[3];
    te[3] = te[12];
    te[12] = tmp;
    tmp = te[7];
    te[7] = te[13];
    te[13] = tmp;
    tmp = te[11];
    te[11] = te[14];
    te[14] = tmp;
    return this;
  }
  setPosition(x, y, z) {
    const te = this.elements;
    if (x.isVector3) {
      te[12] = x.x;
      te[13] = x.y;
      te[14] = x.z;
    } else {
      te[12] = x;
      te[13] = y;
      te[14] = z;
    }
    return this;
  }
  invert() {
    const te = this.elements, n11 = te[0], n21 = te[1], n31 = te[2], n41 = te[3], n12 = te[4], n22 = te[5], n32 = te[6], n42 = te[7], n13 = te[8], n23 = te[9], n33 = te[10], n43 = te[11], n14 = te[12], n24 = te[13], n34 = te[14], n44 = te[15], t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44, t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44, t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44, t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;
    const det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;
    if (det === 0) return this.set(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
    const detInv = 1 / det;
    te[0] = t11 * detInv;
    te[1] = (n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44) * detInv;
    te[2] = (n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44) * detInv;
    te[3] = (n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43) * detInv;
    te[4] = t12 * detInv;
    te[5] = (n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44) * detInv;
    te[6] = (n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44) * detInv;
    te[7] = (n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43) * detInv;
    te[8] = t13 * detInv;
    te[9] = (n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44) * detInv;
    te[10] = (n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44) * detInv;
    te[11] = (n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43) * detInv;
    te[12] = t14 * detInv;
    te[13] = (n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34) * detInv;
    te[14] = (n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34) * detInv;
    te[15] = (n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33) * detInv;
    return this;
  }
  scale(v) {
    const te = this.elements;
    const x = v.x, y = v.y, z = v.z;
    te[0] *= x;
    te[4] *= y;
    te[8] *= z;
    te[1] *= x;
    te[5] *= y;
    te[9] *= z;
    te[2] *= x;
    te[6] *= y;
    te[10] *= z;
    te[3] *= x;
    te[7] *= y;
    te[11] *= z;
    return this;
  }
  getMaxScaleOnAxis() {
    const te = this.elements;
    const scaleXSq = te[0] * te[0] + te[1] * te[1] + te[2] * te[2];
    const scaleYSq = te[4] * te[4] + te[5] * te[5] + te[6] * te[6];
    const scaleZSq = te[8] * te[8] + te[9] * te[9] + te[10] * te[10];
    return Math.sqrt(Math.max(scaleXSq, scaleYSq, scaleZSq));
  }
  makeTranslation(x, y, z) {
    if (x.isVector3) {
      this.set(
        1,
        0,
        0,
        x.x,
        0,
        1,
        0,
        x.y,
        0,
        0,
        1,
        x.z,
        0,
        0,
        0,
        1
      );
    } else {
      this.set(
        1,
        0,
        0,
        x,
        0,
        1,
        0,
        y,
        0,
        0,
        1,
        z,
        0,
        0,
        0,
        1
      );
    }
    return this;
  }
  makeRotationX(theta) {
    const c = Math.cos(theta), s = Math.sin(theta);
    this.set(
      1,
      0,
      0,
      0,
      0,
      c,
      -s,
      0,
      0,
      s,
      c,
      0,
      0,
      0,
      0,
      1
    );
    return this;
  }
  makeRotationY(theta) {
    const c = Math.cos(theta), s = Math.sin(theta);
    this.set(
      c,
      0,
      s,
      0,
      0,
      1,
      0,
      0,
      -s,
      0,
      c,
      0,
      0,
      0,
      0,
      1
    );
    return this;
  }
  makeRotationZ(theta) {
    const c = Math.cos(theta), s = Math.sin(theta);
    this.set(
      c,
      -s,
      0,
      0,
      s,
      c,
      0,
      0,
      0,
      0,
      1,
      0,
      0,
      0,
      0,
      1
    );
    return this;
  }
  makeRotationAxis(axis, angle) {
    const c = Math.cos(angle);
    const s = Math.sin(angle);
    const t = 1 - c;
    const x = axis.x, y = axis.y, z = axis.z;
    const tx = t * x, ty = t * y;
    this.set(
      tx * x + c,
      tx * y - s * z,
      tx * z + s * y,
      0,
      tx * y + s * z,
      ty * y + c,
      ty * z - s * x,
      0,
      tx * z - s * y,
      ty * z + s * x,
      t * z * z + c,
      0,
      0,
      0,
      0,
      1
    );
    return this;
  }
  makeScale(x, y, z) {
    this.set(
      x,
      0,
      0,
      0,
      0,
      y,
      0,
      0,
      0,
      0,
      z,
      0,
      0,
      0,
      0,
      1
    );
    return this;
  }
  makeShear(xy, xz, yx, yz, zx, zy) {
    this.set(
      1,
      yx,
      zx,
      0,
      xy,
      1,
      zy,
      0,
      xz,
      yz,
      1,
      0,
      0,
      0,
      0,
      1
    );
    return this;
  }
  compose(position, quaternion, scale) {
    const te = this.elements;
    const x = quaternion._x, y = quaternion._y, z = quaternion._z, w = quaternion._w;
    const x2 = x + x, y2 = y + y, z2 = z + z;
    const xx = x * x2, xy = x * y2, xz = x * z2;
    const yy = y * y2, yz = y * z2, zz = z * z2;
    const wx = w * x2, wy = w * y2, wz = w * z2;
    const sx = scale.x, sy = scale.y, sz = scale.z;
    te[0] = (1 - (yy + zz)) * sx;
    te[1] = (xy + wz) * sx;
    te[2] = (xz - wy) * sx;
    te[3] = 0;
    te[4] = (xy - wz) * sy;
    te[5] = (1 - (xx + zz)) * sy;
    te[6] = (yz + wx) * sy;
    te[7] = 0;
    te[8] = (xz + wy) * sz;
    te[9] = (yz - wx) * sz;
    te[10] = (1 - (xx + yy)) * sz;
    te[11] = 0;
    te[12] = position.x;
    te[13] = position.y;
    te[14] = position.z;
    te[15] = 1;
    return this;
  }
  decompose(position, quaternion, scale) {
    const te = this.elements;
    let sx = _v1$5.set(te[0], te[1], te[2]).length();
    const sy = _v1$5.set(te[4], te[5], te[6]).length();
    const sz = _v1$5.set(te[8], te[9], te[10]).length();
    const det = this.determinant();
    if (det < 0) sx = -sx;
    position.x = te[12];
    position.y = te[13];
    position.z = te[14];
    _m1$2.copy(this);
    const invSX = 1 / sx;
    const invSY = 1 / sy;
    const invSZ = 1 / sz;
    _m1$2.elements[0] *= invSX;
    _m1$2.elements[1] *= invSX;
    _m1$2.elements[2] *= invSX;
    _m1$2.elements[4] *= invSY;
    _m1$2.elements[5] *= invSY;
    _m1$2.elements[6] *= invSY;
    _m1$2.elements[8] *= invSZ;
    _m1$2.elements[9] *= invSZ;
    _m1$2.elements[10] *= invSZ;
    quaternion.setFromRotationMatrix(_m1$2);
    scale.x = sx;
    scale.y = sy;
    scale.z = sz;
    return this;
  }
  makePerspective(left, right, top, bottom, near, far, coordinateSystem = WebGLCoordinateSystem) {
    const te = this.elements;
    const x = 2 * near / (right - left);
    const y = 2 * near / (top - bottom);
    const a = (right + left) / (right - left);
    const b = (top + bottom) / (top - bottom);
    let c, d;
    if (coordinateSystem === WebGLCoordinateSystem) {
      c = -(far + near) / (far - near);
      d = -2 * far * near / (far - near);
    } else if (coordinateSystem === WebGPUCoordinateSystem) {
      c = -far / (far - near);
      d = -far * near / (far - near);
    } else {
      throw new Error("THREE.Matrix4.makePerspective(): Invalid coordinate system: " + coordinateSystem);
    }
    te[0] = x;
    te[4] = 0;
    te[8] = a;
    te[12] = 0;
    te[1] = 0;
    te[5] = y;
    te[9] = b;
    te[13] = 0;
    te[2] = 0;
    te[6] = 0;
    te[10] = c;
    te[14] = d;
    te[3] = 0;
    te[7] = 0;
    te[11] = -1;
    te[15] = 0;
    return this;
  }
  makeOrthographic(left, right, top, bottom, near, far, coordinateSystem = WebGLCoordinateSystem) {
    const te = this.elements;
    const w = 1 / (right - left);
    const h = 1 / (top - bottom);
    const p = 1 / (far - near);
    const x = (right + left) * w;
    const y = (top + bottom) * h;
    let z, zInv;
    if (coordinateSystem === WebGLCoordinateSystem) {
      z = (far + near) * p;
      zInv = -2 * p;
    } else if (coordinateSystem === WebGPUCoordinateSystem) {
      z = near * p;
      zInv = -1 * p;
    } else {
      throw new Error("THREE.Matrix4.makeOrthographic(): Invalid coordinate system: " + coordinateSystem);
    }
    te[0] = 2 * w;
    te[4] = 0;
    te[8] = 0;
    te[12] = -x;
    te[1] = 0;
    te[5] = 2 * h;
    te[9] = 0;
    te[13] = -y;
    te[2] = 0;
    te[6] = 0;
    te[10] = zInv;
    te[14] = -z;
    te[3] = 0;
    te[7] = 0;
    te[11] = 0;
    te[15] = 1;
    return this;
  }
  equals(matrix) {
    const te = this.elements;
    const me = matrix.elements;
    for (let i = 0; i < 16; i++) {
      if (te[i] !== me[i]) return false;
    }
    return true;
  }
  fromArray(array, offset = 0) {
    for (let i = 0; i < 16; i++) {
      this.elements[i] = array[i + offset];
    }
    return this;
  }
  toArray(array = [], offset = 0) {
    const te = this.elements;
    array[offset] = te[0];
    array[offset + 1] = te[1];
    array[offset + 2] = te[2];
    array[offset + 3] = te[3];
    array[offset + 4] = te[4];
    array[offset + 5] = te[5];
    array[offset + 6] = te[6];
    array[offset + 7] = te[7];
    array[offset + 8] = te[8];
    array[offset + 9] = te[9];
    array[offset + 10] = te[10];
    array[offset + 11] = te[11];
    array[offset + 12] = te[12];
    array[offset + 13] = te[13];
    array[offset + 14] = te[14];
    array[offset + 15] = te[15];
    return array;
  }
};
var _v1$5 = /* @__PURE__ */ new Vector3();
var _m1$2 = /* @__PURE__ */ new Matrix4();
var _zero = /* @__PURE__ */ new Vector3(0, 0, 0);
var _one = /* @__PURE__ */ new Vector3(1, 1, 1);
var _x = /* @__PURE__ */ new Vector3();
var _y = /* @__PURE__ */ new Vector3();
var _z = /* @__PURE__ */ new Vector3();
var _matrix$2 = /* @__PURE__ */ new Matrix4();
var _quaternion$3 = /* @__PURE__ */ new Quaternion();
var Euler = class _Euler {
  constructor(x = 0, y = 0, z = 0, order = _Euler.DEFAULT_ORDER) {
    this.isEuler = true;
    this._x = x;
    this._y = y;
    this._z = z;
    this._order = order;
  }
  get x() {
    return this._x;
  }
  set x(value) {
    this._x = value;
    this._onChangeCallback();
  }
  get y() {
    return this._y;
  }
  set y(value) {
    this._y = value;
    this._onChangeCallback();
  }
  get z() {
    return this._z;
  }
  set z(value) {
    this._z = value;
    this._onChangeCallback();
  }
  get order() {
    return this._order;
  }
  set order(value) {
    this._order = value;
    this._onChangeCallback();
  }
  set(x, y, z, order = this._order) {
    this._x = x;
    this._y = y;
    this._z = z;
    this._order = order;
    this._onChangeCallback();
    return this;
  }
  clone() {
    return new this.constructor(this._x, this._y, this._z, this._order);
  }
  copy(euler) {
    this._x = euler._x;
    this._y = euler._y;
    this._z = euler._z;
    this._order = euler._order;
    this._onChangeCallback();
    return this;
  }
  setFromRotationMatrix(m, order = this._order, update = true) {
    const te = m.elements;
    const m11 = te[0], m12 = te[4], m13 = te[8];
    const m21 = te[1], m22 = te[5], m23 = te[9];
    const m31 = te[2], m32 = te[6], m33 = te[10];
    switch (order) {
      case "XYZ":
        this._y = Math.asin(clamp(m13, -1, 1));
        if (Math.abs(m13) < 0.9999999) {
          this._x = Math.atan2(-m23, m33);
          this._z = Math.atan2(-m12, m11);
        } else {
          this._x = Math.atan2(m32, m22);
          this._z = 0;
        }
        break;
      case "YXZ":
        this._x = Math.asin(-clamp(m23, -1, 1));
        if (Math.abs(m23) < 0.9999999) {
          this._y = Math.atan2(m13, m33);
          this._z = Math.atan2(m21, m22);
        } else {
          this._y = Math.atan2(-m31, m11);
          this._z = 0;
        }
        break;
      case "ZXY":
        this._x = Math.asin(clamp(m32, -1, 1));
        if (Math.abs(m32) < 0.9999999) {
          this._y = Math.atan2(-m31, m33);
          this._z = Math.atan2(-m12, m22);
        } else {
          this._y = 0;
          this._z = Math.atan2(m21, m11);
        }
        break;
      case "ZYX":
        this._y = Math.asin(-clamp(m31, -1, 1));
        if (Math.abs(m31) < 0.9999999) {
          this._x = Math.atan2(m32, m33);
          this._z = Math.atan2(m21, m11);
        } else {
          this._x = 0;
          this._z = Math.atan2(-m12, m22);
        }
        break;
      case "YZX":
        this._z = Math.asin(clamp(m21, -1, 1));
        if (Math.abs(m21) < 0.9999999) {
          this._x = Math.atan2(-m23, m22);
          this._y = Math.atan2(-m31, m11);
        } else {
          this._x = 0;
          this._y = Math.atan2(m13, m33);
        }
        break;
      case "XZY":
        this._z = Math.asin(-clamp(m12, -1, 1));
        if (Math.abs(m12) < 0.9999999) {
          this._x = Math.atan2(m32, m22);
          this._y = Math.atan2(m13, m11);
        } else {
          this._x = Math.atan2(-m23, m33);
          this._y = 0;
        }
        break;
      default:
        console.warn("THREE.Euler: .setFromRotationMatrix() encountered an unknown order: " + order);
    }
    this._order = order;
    if (update === true) this._onChangeCallback();
    return this;
  }
  setFromQuaternion(q, order, update) {
    _matrix$2.makeRotationFromQuaternion(q);
    return this.setFromRotationMatrix(_matrix$2, order, update);
  }
  setFromVector3(v, order = this._order) {
    return this.set(v.x, v.y, v.z, order);
  }
  reorder(newOrder) {
    _quaternion$3.setFromEuler(this);
    return this.setFromQuaternion(_quaternion$3, newOrder);
  }
  equals(euler) {
    return euler._x === this._x && euler._y === this._y && euler._z === this._z && euler._order === this._order;
  }
  fromArray(array) {
    this._x = array[0];
    this._y = array[1];
    this._z = array[2];
    if (array[3] !== void 0) this._order = array[3];
    this._onChangeCallback();
    return this;
  }
  toArray(array = [], offset = 0) {
    array[offset] = this._x;
    array[offset + 1] = this._y;
    array[offset + 2] = this._z;
    array[offset + 3] = this._order;
    return array;
  }
  _onChange(callback) {
    this._onChangeCallback = callback;
    return this;
  }
  _onChangeCallback() {
  }
  *[Symbol.iterator]() {
    yield this._x;
    yield this._y;
    yield this._z;
    yield this._order;
  }
};
Euler.DEFAULT_ORDER = "XYZ";
var Layers = class {
  constructor() {
    this.mask = 1 | 0;
  }
  set(channel) {
    this.mask = (1 << channel | 0) >>> 0;
  }
  enable(channel) {
    this.mask |= 1 << channel | 0;
  }
  enableAll() {
    this.mask = 4294967295 | 0;
  }
  toggle(channel) {
    this.mask ^= 1 << channel | 0;
  }
  disable(channel) {
    this.mask &= ~(1 << channel | 0);
  }
  disableAll() {
    this.mask = 0;
  }
  test(layers) {
    return (this.mask & layers.mask) !== 0;
  }
  isEnabled(channel) {
    return (this.mask & (1 << channel | 0)) !== 0;
  }
};
var _object3DId = 0;
var _v1$4 = /* @__PURE__ */ new Vector3();
var _q1 = /* @__PURE__ */ new Quaternion();
var _m1$1 = /* @__PURE__ */ new Matrix4();
var _target = /* @__PURE__ */ new Vector3();
var _position$3 = /* @__PURE__ */ new Vector3();
var _scale$2 = /* @__PURE__ */ new Vector3();
var _quaternion$2 = /* @__PURE__ */ new Quaternion();
var _xAxis = /* @__PURE__ */ new Vector3(1, 0, 0);
var _yAxis = /* @__PURE__ */ new Vector3(0, 1, 0);
var _zAxis = /* @__PURE__ */ new Vector3(0, 0, 1);
var _addedEvent = { type: "added" };
var _removedEvent = { type: "removed" };
var _childaddedEvent = { type: "childadded", child: null };
var _childremovedEvent = { type: "childremoved", child: null };
var Object3D = class _Object3D extends EventDispatcher {
  constructor() {
    super();
    this.isObject3D = true;
    Object.defineProperty(this, "id", { value: _object3DId++ });
    this.uuid = generateUUID();
    this.name = "";
    this.type = "Object3D";
    this.parent = null;
    this.children = [];
    this.up = _Object3D.DEFAULT_UP.clone();
    const position = new Vector3();
    const rotation = new Euler();
    const quaternion = new Quaternion();
    const scale = new Vector3(1, 1, 1);
    function onRotationChange() {
      quaternion.setFromEuler(rotation, false);
    }
    function onQuaternionChange() {
      rotation.setFromQuaternion(quaternion, void 0, false);
    }
    rotation._onChange(onRotationChange);
    quaternion._onChange(onQuaternionChange);
    Object.defineProperties(this, {
      position: {
        configurable: true,
        enumerable: true,
        value: position
      },
      rotation: {
        configurable: true,
        enumerable: true,
        value: rotation
      },
      quaternion: {
        configurable: true,
        enumerable: true,
        value: quaternion
      },
      scale: {
        configurable: true,
        enumerable: true,
        value: scale
      },
      modelViewMatrix: {
        value: new Matrix4()
      },
      normalMatrix: {
        value: new Matrix3()
      }
    });
    this.matrix = new Matrix4();
    this.matrixWorld = new Matrix4();
    this.matrixAutoUpdate = _Object3D.DEFAULT_MATRIX_AUTO_UPDATE;
    this.matrixWorldAutoUpdate = _Object3D.DEFAULT_MATRIX_WORLD_AUTO_UPDATE;
    this.matrixWorldNeedsUpdate = false;
    this.layers = new Layers();
    this.visible = true;
    this.castShadow = false;
    this.receiveShadow = false;
    this.frustumCulled = true;
    this.renderOrder = 0;
    this.animations = [];
    this.userData = {};
  }
  onBeforeShadow() {
  }
  onAfterShadow() {
  }
  onBeforeRender() {
  }
  onAfterRender() {
  }
  applyMatrix4(matrix) {
    if (this.matrixAutoUpdate) this.updateMatrix();
    this.matrix.premultiply(matrix);
    this.matrix.decompose(this.position, this.quaternion, this.scale);
  }
  applyQuaternion(q) {
    this.quaternion.premultiply(q);
    return this;
  }
  setRotationFromAxisAngle(axis, angle) {
    this.quaternion.setFromAxisAngle(axis, angle);
  }
  setRotationFromEuler(euler) {
    this.quaternion.setFromEuler(euler, true);
  }
  setRotationFromMatrix(m) {
    this.quaternion.setFromRotationMatrix(m);
  }
  setRotationFromQuaternion(q) {
    this.quaternion.copy(q);
  }
  rotateOnAxis(axis, angle) {
    _q1.setFromAxisAngle(axis, angle);
    this.quaternion.multiply(_q1);
    return this;
  }
  rotateOnWorldAxis(axis, angle) {
    _q1.setFromAxisAngle(axis, angle);
    this.quaternion.premultiply(_q1);
    return this;
  }
  rotateX(angle) {
    return this.rotateOnAxis(_xAxis, angle);
  }
  rotateY(angle) {
    return this.rotateOnAxis(_yAxis, angle);
  }
  rotateZ(angle) {
    return this.rotateOnAxis(_zAxis, angle);
  }
  translateOnAxis(axis, distance) {
    _v1$4.copy(axis).applyQuaternion(this.quaternion);
    this.position.add(_v1$4.multiplyScalar(distance));
    return this;
  }
  translateX(distance) {
    return this.translateOnAxis(_xAxis, distance);
  }
  translateY(distance) {
    return this.translateOnAxis(_yAxis, distance);
  }
  translateZ(distance) {
    return this.translateOnAxis(_zAxis, distance);
  }
  localToWorld(vector) {
    this.updateWorldMatrix(true, false);
    return vector.applyMatrix4(this.matrixWorld);
  }
  worldToLocal(vector) {
    this.updateWorldMatrix(true, false);
    return vector.applyMatrix4(_m1$1.copy(this.matrixWorld).invert());
  }
  lookAt(x, y, z) {
    if (x.isVector3) {
      _target.copy(x);
    } else {
      _target.set(x, y, z);
    }
    const parent = this.parent;
    this.updateWorldMatrix(true, false);
    _position$3.setFromMatrixPosition(this.matrixWorld);
    if (this.isCamera || this.isLight) {
      _m1$1.lookAt(_position$3, _target, this.up);
    } else {
      _m1$1.lookAt(_target, _position$3, this.up);
    }
    this.quaternion.setFromRotationMatrix(_m1$1);
    if (parent) {
      _m1$1.extractRotation(parent.matrixWorld);
      _q1.setFromRotationMatrix(_m1$1);
      this.quaternion.premultiply(_q1.invert());
    }
  }
  add(object) {
    if (arguments.length > 1) {
      for (let i = 0; i < arguments.length; i++) {
        this.add(arguments[i]);
      }
      return this;
    }
    if (object === this) {
      console.error("THREE.Object3D.add: object can't be added as a child of itself.", object);
      return this;
    }
    if (object && object.isObject3D) {
      object.removeFromParent();
      object.parent = this;
      this.children.push(object);
      object.dispatchEvent(_addedEvent);
      _childaddedEvent.child = object;
      this.dispatchEvent(_childaddedEvent);
      _childaddedEvent.child = null;
    } else {
      console.error("THREE.Object3D.add: object not an instance of THREE.Object3D.", object);
    }
    return this;
  }
  remove(object) {
    if (arguments.length > 1) {
      for (let i = 0; i < arguments.length; i++) {
        this.remove(arguments[i]);
      }
      return this;
    }
    const index = this.children.indexOf(object);
    if (index !== -1) {
      object.parent = null;
      this.children.splice(index, 1);
      object.dispatchEvent(_removedEvent);
      _childremovedEvent.child = object;
      this.dispatchEvent(_childremovedEvent);
      _childremovedEvent.child = null;
    }
    return this;
  }
  removeFromParent() {
    const parent = this.parent;
    if (parent !== null) {
      parent.remove(this);
    }
    return this;
  }
  clear() {
    return this.remove(...this.children);
  }
  attach(object) {
    this.updateWorldMatrix(true, false);
    _m1$1.copy(this.matrixWorld).invert();
    if (object.parent !== null) {
      object.parent.updateWorldMatrix(true, false);
      _m1$1.multiply(object.parent.matrixWorld);
    }
    object.applyMatrix4(_m1$1);
    object.removeFromParent();
    object.parent = this;
    this.children.push(object);
    object.updateWorldMatrix(false, true);
    object.dispatchEvent(_addedEvent);
    _childaddedEvent.child = object;
    this.dispatchEvent(_childaddedEvent);
    _childaddedEvent.child = null;
    return this;
  }
  getObjectById(id) {
    return this.getObjectByProperty("id", id);
  }
  getObjectByName(name) {
    return this.getObjectByProperty("name", name);
  }
  getObjectByProperty(name, value) {
    if (this[name] === value) return this;
    for (let i = 0, l = this.children.length; i < l; i++) {
      const child = this.children[i];
      const object = child.getObjectByProperty(name, value);
      if (object !== void 0) {
        return object;
      }
    }
    return void 0;
  }
  getObjectsByProperty(name, value, result = []) {
    if (this[name] === value) result.push(this);
    const children = this.children;
    for (let i = 0, l = children.length; i < l; i++) {
      children[i].getObjectsByProperty(name, value, result);
    }
    return result;
  }
  getWorldPosition(target) {
    this.updateWorldMatrix(true, false);
    return target.setFromMatrixPosition(this.matrixWorld);
  }
  getWorldQuaternion(target) {
    this.updateWorldMatrix(true, false);
    this.matrixWorld.decompose(_position$3, target, _scale$2);
    return target;
  }
  getWorldScale(target) {
    this.updateWorldMatrix(true, false);
    this.matrixWorld.decompose(_position$3, _quaternion$2, target);
    return target;
  }
  getWorldDirection(target) {
    this.updateWorldMatrix(true, false);
    const e = this.matrixWorld.elements;
    return target.set(e[8], e[9], e[10]).normalize();
  }
  raycast() {
  }
  traverse(callback) {
    callback(this);
    const children = this.children;
    for (let i = 0, l = children.length; i < l; i++) {
      children[i].traverse(callback);
    }
  }
  traverseVisible(callback) {
    if (this.visible === false) return;
    callback(this);
    const children = this.children;
    for (let i = 0, l = children.length; i < l; i++) {
      children[i].traverseVisible(callback);
    }
  }
  traverseAncestors(callback) {
    const parent = this.parent;
    if (parent !== null) {
      callback(parent);
      parent.traverseAncestors(callback);
    }
  }
  updateMatrix() {
    this.matrix.compose(this.position, this.quaternion, this.scale);
    this.matrixWorldNeedsUpdate = true;
  }
  updateMatrixWorld(force) {
    if (this.matrixAutoUpdate) this.updateMatrix();
    if (this.matrixWorldNeedsUpdate || force) {
      if (this.matrixWorldAutoUpdate === true) {
        if (this.parent === null) {
          this.matrixWorld.copy(this.matrix);
        } else {
          this.matrixWorld.multiplyMatrices(this.parent.matrixWorld, this.matrix);
        }
      }
      this.matrixWorldNeedsUpdate = false;
      force = true;
    }
    const children = this.children;
    for (let i = 0, l = children.length; i < l; i++) {
      const child = children[i];
      child.updateMatrixWorld(force);
    }
  }
  updateWorldMatrix(updateParents, updateChildren) {
    const parent = this.parent;
    if (updateParents === true && parent !== null) {
      parent.updateWorldMatrix(true, false);
    }
    if (this.matrixAutoUpdate) this.updateMatrix();
    if (this.matrixWorldAutoUpdate === true) {
      if (this.parent === null) {
        this.matrixWorld.copy(this.matrix);
      } else {
        this.matrixWorld.multiplyMatrices(this.parent.matrixWorld, this.matrix);
      }
    }
    if (updateChildren === true) {
      const children = this.children;
      for (let i = 0, l = children.length; i < l; i++) {
        const child = children[i];
        child.updateWorldMatrix(false, true);
      }
    }
  }
  toJSON(meta) {
    const isRootObject = meta === void 0 || typeof meta === "string";
    const output = {};
    if (isRootObject) {
      meta = {
        geometries: {},
        materials: {},
        textures: {},
        images: {},
        shapes: {},
        skeletons: {},
        animations: {},
        nodes: {}
      };
      output.metadata = {
        version: 4.6,
        type: "Object",
        generator: "Object3D.toJSON"
      };
    }
    const object = {};
    object.uuid = this.uuid;
    object.type = this.type;
    if (this.name !== "") object.name = this.name;
    if (this.castShadow === true) object.castShadow = true;
    if (this.receiveShadow === true) object.receiveShadow = true;
    if (this.visible === false) object.visible = false;
    if (this.frustumCulled === false) object.frustumCulled = false;
    if (this.renderOrder !== 0) object.renderOrder = this.renderOrder;
    if (Object.keys(this.userData).length > 0) object.userData = this.userData;
    object.layers = this.layers.mask;
    object.matrix = this.matrix.toArray();
    object.up = this.up.toArray();
    if (this.matrixAutoUpdate === false) object.matrixAutoUpdate = false;
    if (this.isInstancedMesh) {
      object.type = "InstancedMesh";
      object.count = this.count;
      object.instanceMatrix = this.instanceMatrix.toJSON();
      if (this.instanceColor !== null) object.instanceColor = this.instanceColor.toJSON();
    }
    if (this.isBatchedMesh) {
      object.type = "BatchedMesh";
      object.perObjectFrustumCulled = this.perObjectFrustumCulled;
      object.sortObjects = this.sortObjects;
      object.drawRanges = this._drawRanges;
      object.reservedRanges = this._reservedRanges;
      object.visibility = this._visibility;
      object.active = this._active;
      object.bounds = this._bounds.map((bound) => ({
        boxInitialized: bound.boxInitialized,
        boxMin: bound.box.min.toArray(),
        boxMax: bound.box.max.toArray(),
        sphereInitialized: bound.sphereInitialized,
        sphereRadius: bound.sphere.radius,
        sphereCenter: bound.sphere.center.toArray()
      }));
      object.maxInstanceCount = this._maxInstanceCount;
      object.maxVertexCount = this._maxVertexCount;
      object.maxIndexCount = this._maxIndexCount;
      object.geometryInitialized = this._geometryInitialized;
      object.geometryCount = this._geometryCount;
      object.matricesTexture = this._matricesTexture.toJSON(meta);
      if (this._colorsTexture !== null) object.colorsTexture = this._colorsTexture.toJSON(meta);
      if (this.boundingSphere !== null) {
        object.boundingSphere = {
          center: object.boundingSphere.center.toArray(),
          radius: object.boundingSphere.radius
        };
      }
      if (this.boundingBox !== null) {
        object.boundingBox = {
          min: object.boundingBox.min.toArray(),
          max: object.boundingBox.max.toArray()
        };
      }
    }
    function serialize(library, element) {
      if (library[element.uuid] === void 0) {
        library[element.uuid] = element.toJSON(meta);
      }
      return element.uuid;
    }
    if (this.isScene) {
      if (this.background) {
        if (this.background.isColor) {
          object.background = this.background.toJSON();
        } else if (this.background.isTexture) {
          object.background = this.background.toJSON(meta).uuid;
        }
      }
      if (this.environment && this.environment.isTexture && this.environment.isRenderTargetTexture !== true) {
        object.environment = this.environment.toJSON(meta).uuid;
      }
    } else if (this.isMesh || this.isLine || this.isPoints) {
      object.geometry = serialize(meta.geometries, this.geometry);
      const parameters = this.geometry.parameters;
      if (parameters !== void 0 && parameters.shapes !== void 0) {
        const shapes = parameters.shapes;
        if (Array.isArray(shapes)) {
          for (let i = 0, l = shapes.length; i < l; i++) {
            const shape = shapes[i];
            serialize(meta.shapes, shape);
          }
        } else {
          serialize(meta.shapes, shapes);
        }
      }
    }
    if (this.isSkinnedMesh) {
      object.bindMode = this.bindMode;
      object.bindMatrix = this.bindMatrix.toArray();
      if (this.skeleton !== void 0) {
        serialize(meta.skeletons, this.skeleton);
        object.skeleton = this.skeleton.uuid;
      }
    }
    if (this.material !== void 0) {
      if (Array.isArray(this.material)) {
        const uuids = [];
        for (let i = 0, l = this.material.length; i < l; i++) {
          uuids.push(serialize(meta.materials, this.material[i]));
        }
        object.material = uuids;
      } else {
        object.material = serialize(meta.materials, this.material);
      }
    }
    if (this.children.length > 0) {
      object.children = [];
      for (let i = 0; i < this.children.length; i++) {
        object.children.push(this.children[i].toJSON(meta).object);
      }
    }
    if (this.animations.length > 0) {
      object.animations = [];
      for (let i = 0; i < this.animations.length; i++) {
        const animation = this.animations[i];
        object.animations.push(serialize(meta.animations, animation));
      }
    }
    if (isRootObject) {
      const geometries = extractFromCache(meta.geometries);
      const materials = extractFromCache(meta.materials);
      const textures = extractFromCache(meta.textures);
      const images = extractFromCache(meta.images);
      const shapes = extractFromCache(meta.shapes);
      const skeletons = extractFromCache(meta.skeletons);
      const animations = extractFromCache(meta.animations);
      const nodes = extractFromCache(meta.nodes);
      if (geometries.length > 0) output.geometries = geometries;
      if (materials.length > 0) output.materials = materials;
      if (textures.length > 0) output.textures = textures;
      if (images.length > 0) output.images = images;
      if (shapes.length > 0) output.shapes = shapes;
      if (skeletons.length > 0) output.skeletons = skeletons;
      if (animations.length > 0) output.animations = animations;
      if (nodes.length > 0) output.nodes = nodes;
    }
    output.object = object;
    return output;
    function extractFromCache(cache) {
      const values = [];
      for (const key in cache) {
        const data = cache[key];
        delete data.metadata;
        values.push(data);
      }
      return values;
    }
  }
  clone(recursive) {
    return new this.constructor().copy(this, recursive);
  }
  copy(source, recursive = true) {
    this.name = source.name;
    this.up.copy(source.up);
    this.position.copy(source.position);
    this.rotation.order = source.rotation.order;
    this.quaternion.copy(source.quaternion);
    this.scale.copy(source.scale);
    this.matrix.copy(source.matrix);
    this.matrixWorld.copy(source.matrixWorld);
    this.matrixAutoUpdate = source.matrixAutoUpdate;
    this.matrixWorldAutoUpdate = source.matrixWorldAutoUpdate;
    this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;
    this.layers.mask = source.layers.mask;
    this.visible = source.visible;
    this.castShadow = source.castShadow;
    this.receiveShadow = source.receiveShadow;
    this.frustumCulled = source.frustumCulled;
    this.renderOrder = source.renderOrder;
    this.animations = source.animations.slice();
    this.userData = JSON.parse(JSON.stringify(source.userData));
    if (recursive === true) {
      for (let i = 0; i < source.children.length; i++) {
        const child = source.children[i];
        this.add(child.clone());
      }
    }
    return this;
  }
};
Object3D.DEFAULT_UP = /* @__PURE__ */ new Vector3(0, 1, 0);
Object3D.DEFAULT_MATRIX_AUTO_UPDATE = true;
Object3D.DEFAULT_MATRIX_WORLD_AUTO_UPDATE = true;
var _v0$1 = /* @__PURE__ */ new Vector3();
var _v1$3 = /* @__PURE__ */ new Vector3();
var _v2$2 = /* @__PURE__ */ new Vector3();
var _v3$2 = /* @__PURE__ */ new Vector3();
var _vab = /* @__PURE__ */ new Vector3();
var _vac = /* @__PURE__ */ new Vector3();
var _vbc = /* @__PURE__ */ new Vector3();
var _vap = /* @__PURE__ */ new Vector3();
var _vbp = /* @__PURE__ */ new Vector3();
var _vcp = /* @__PURE__ */ new Vector3();
var _v40 = /* @__PURE__ */ new Vector4();
var _v41 = /* @__PURE__ */ new Vector4();
var _v42 = /* @__PURE__ */ new Vector4();
var Triangle = class _Triangle {
  constructor(a = new Vector3(), b = new Vector3(), c = new Vector3()) {
    this.a = a;
    this.b = b;
    this.c = c;
  }
  static getNormal(a, b, c, target) {
    target.subVectors(c, b);
    _v0$1.subVectors(a, b);
    target.cross(_v0$1);
    const targetLengthSq = target.lengthSq();
    if (targetLengthSq > 0) {
      return target.multiplyScalar(1 / Math.sqrt(targetLengthSq));
    }
    return target.set(0, 0, 0);
  }
  // static/instance method to calculate barycentric coordinates
  // based on: http://www.blackpawn.com/texts/pointinpoly/default.html
  static getBarycoord(point, a, b, c, target) {
    _v0$1.subVectors(c, a);
    _v1$3.subVectors(b, a);
    _v2$2.subVectors(point, a);
    const dot00 = _v0$1.dot(_v0$1);
    const dot01 = _v0$1.dot(_v1$3);
    const dot02 = _v0$1.dot(_v2$2);
    const dot11 = _v1$3.dot(_v1$3);
    const dot12 = _v1$3.dot(_v2$2);
    const denom = dot00 * dot11 - dot01 * dot01;
    if (denom === 0) {
      target.set(0, 0, 0);
      return null;
    }
    const invDenom = 1 / denom;
    const u = (dot11 * dot02 - dot01 * dot12) * invDenom;
    const v = (dot00 * dot12 - dot01 * dot02) * invDenom;
    return target.set(1 - u - v, v, u);
  }
  static containsPoint(point, a, b, c) {
    if (this.getBarycoord(point, a, b, c, _v3$2) === null) {
      return false;
    }
    return _v3$2.x >= 0 && _v3$2.y >= 0 && _v3$2.x + _v3$2.y <= 1;
  }
  static getInterpolation(point, p1, p2, p3, v1, v2, v3, target) {
    if (this.getBarycoord(point, p1, p2, p3, _v3$2) === null) {
      target.x = 0;
      target.y = 0;
      if ("z" in target) target.z = 0;
      if ("w" in target) target.w = 0;
      return null;
    }
    target.setScalar(0);
    target.addScaledVector(v1, _v3$2.x);
    target.addScaledVector(v2, _v3$2.y);
    target.addScaledVector(v3, _v3$2.z);
    return target;
  }
  static getInterpolatedAttribute(attr, i1, i2, i3, barycoord, target) {
    _v40.setScalar(0);
    _v41.setScalar(0);
    _v42.setScalar(0);
    _v40.fromBufferAttribute(attr, i1);
    _v41.fromBufferAttribute(attr, i2);
    _v42.fromBufferAttribute(attr, i3);
    target.setScalar(0);
    target.addScaledVector(_v40, barycoord.x);
    target.addScaledVector(_v41, barycoord.y);
    target.addScaledVector(_v42, barycoord.z);
    return target;
  }
  static isFrontFacing(a, b, c, direction) {
    _v0$1.subVectors(c, b);
    _v1$3.subVectors(a, b);
    return _v0$1.cross(_v1$3).dot(direction) < 0 ? true : false;
  }
  set(a, b, c) {
    this.a.copy(a);
    this.b.copy(b);
    this.c.copy(c);
    return this;
  }
  setFromPointsAndIndices(points, i0, i1, i2) {
    this.a.copy(points[i0]);
    this.b.copy(points[i1]);
    this.c.copy(points[i2]);
    return this;
  }
  setFromAttributeAndIndices(attribute, i0, i1, i2) {
    this.a.fromBufferAttribute(attribute, i0);
    this.b.fromBufferAttribute(attribute, i1);
    this.c.fromBufferAttribute(attribute, i2);
    return this;
  }
  clone() {
    return new this.constructor().copy(this);
  }
  copy(triangle) {
    this.a.copy(triangle.a);
    this.b.copy(triangle.b);
    this.c.copy(triangle.c);
    return this;
  }
  getArea() {
    _v0$1.subVectors(this.c, this.b);
    _v1$3.subVectors(this.a, this.b);
    return _v0$1.cross(_v1$3).length() * 0.5;
  }
  getMidpoint(target) {
    return target.addVectors(this.a, this.b).add(this.c).multiplyScalar(1 / 3);
  }
  getNormal(target) {
    return _Triangle.getNormal(this.a, this.b, this.c, target);
  }
  getPlane(target) {
    return target.setFromCoplanarPoints(this.a, this.b, this.c);
  }
  getBarycoord(point, target) {
    return _Triangle.getBarycoord(point, this.a, this.b, this.c, target);
  }
  getInterpolation(point, v1, v2, v3, target) {
    return _Triangle.getInterpolation(point, this.a, this.b, this.c, v1, v2, v3, target);
  }
  containsPoint(point) {
    return _Triangle.containsPoint(point, this.a, this.b, this.c);
  }
  isFrontFacing(direction) {
    return _Triangle.isFrontFacing(this.a, this.b, this.c, direction);
  }
  intersectsBox(box) {
    return box.intersectsTriangle(this);
  }
  closestPointToPoint(p, target) {
    const a = this.a, b = this.b, c = this.c;
    let v, w;
    _vab.subVectors(b, a);
    _vac.subVectors(c, a);
    _vap.subVectors(p, a);
    const d1 = _vab.dot(_vap);
    const d2 = _vac.dot(_vap);
    if (d1 <= 0 && d2 <= 0) {
      return target.copy(a);
    }
    _vbp.subVectors(p, b);
    const d3 = _vab.dot(_vbp);
    const d4 = _vac.dot(_vbp);
    if (d3 >= 0 && d4 <= d3) {
      return target.copy(b);
    }
    const vc = d1 * d4 - d3 * d2;
    if (vc <= 0 && d1 >= 0 && d3 <= 0) {
      v = d1 / (d1 - d3);
      return target.copy(a).addScaledVector(_vab, v);
    }
    _vcp.subVectors(p, c);
    const d5 = _vab.dot(_vcp);
    const d6 = _vac.dot(_vcp);
    if (d6 >= 0 && d5 <= d6) {
      return target.copy(c);
    }
    const vb = d5 * d2 - d1 * d6;
    if (vb <= 0 && d2 >= 0 && d6 <= 0) {
      w = d2 / (d2 - d6);
      return target.copy(a).addScaledVector(_vac, w);
    }
    const va = d3 * d6 - d5 * d4;
    if (va <= 0 && d4 - d3 >= 0 && d5 - d6 >= 0) {
      _vbc.subVectors(c, b);
      w = (d4 - d3) / (d4 - d3 + (d5 - d6));
      return target.copy(b).addScaledVector(_vbc, w);
    }
    const denom = 1 / (va + vb + vc);
    v = vb * denom;
    w = vc * denom;
    return target.copy(a).addScaledVector(_vab, v).addScaledVector(_vac, w);
  }
  equals(triangle) {
    return triangle.a.equals(this.a) && triangle.b.equals(this.b) && triangle.c.equals(this.c);
  }
};
var _colorKeywords = {
  "aliceblue": 15792383,
  "antiquewhite": 16444375,
  "aqua": 65535,
  "aquamarine": 8388564,
  "azure": 15794175,
  "beige": 16119260,
  "bisque": 16770244,
  "black": 0,
  "blanchedalmond": 16772045,
  "blue": 255,
  "blueviolet": 9055202,
  "brown": 10824234,
  "burlywood": 14596231,
  "cadetblue": 6266528,
  "chartreuse": 8388352,
  "chocolate": 13789470,
  "coral": 16744272,
  "cornflowerblue": 6591981,
  "cornsilk": 16775388,
  "crimson": 14423100,
  "cyan": 65535,
  "darkblue": 139,
  "darkcyan": 35723,
  "darkgoldenrod": 12092939,
  "darkgray": 11119017,
  "darkgreen": 25600,
  "darkgrey": 11119017,
  "darkkhaki": 12433259,
  "darkmagenta": 9109643,
  "darkolivegreen": 5597999,
  "darkorange": 16747520,
  "darkorchid": 10040012,
  "darkred": 9109504,
  "darksalmon": 15308410,
  "darkseagreen": 9419919,
  "darkslateblue": 4734347,
  "darkslategray": 3100495,
  "darkslategrey": 3100495,
  "darkturquoise": 52945,
  "darkviolet": 9699539,
  "deeppink": 16716947,
  "deepskyblue": 49151,
  "dimgray": 6908265,
  "dimgrey": 6908265,
  "dodgerblue": 2003199,
  "firebrick": 11674146,
  "floralwhite": 16775920,
  "forestgreen": 2263842,
  "fuchsia": 16711935,
  "gainsboro": 14474460,
  "ghostwhite": 16316671,
  "gold": 16766720,
  "goldenrod": 14329120,
  "gray": 8421504,
  "green": 32768,
  "greenyellow": 11403055,
  "grey": 8421504,
  "honeydew": 15794160,
  "hotpink": 16738740,
  "indianred": 13458524,
  "indigo": 4915330,
  "ivory": 16777200,
  "khaki": 15787660,
  "lavender": 15132410,
  "lavenderblush": 16773365,
  "lawngreen": 8190976,
  "lemonchiffon": 16775885,
  "lightblue": 11393254,
  "lightcoral": 15761536,
  "lightcyan": 14745599,
  "lightgoldenrodyellow": 16448210,
  "lightgray": 13882323,
  "lightgreen": 9498256,
  "lightgrey": 13882323,
  "lightpink": 16758465,
  "lightsalmon": 16752762,
  "lightseagreen": 2142890,
  "lightskyblue": 8900346,
  "lightslategray": 7833753,
  "lightslategrey": 7833753,
  "lightsteelblue": 11584734,
  "lightyellow": 16777184,
  "lime": 65280,
  "limegreen": 3329330,
  "linen": 16445670,
  "magenta": 16711935,
  "maroon": 8388608,
  "mediumaquamarine": 6737322,
  "mediumblue": 205,
  "mediumorchid": 12211667,
  "mediumpurple": 9662683,
  "mediumseagreen": 3978097,
  "mediumslateblue": 8087790,
  "mediumspringgreen": 64154,
  "mediumturquoise": 4772300,
  "mediumvioletred": 13047173,
  "midnightblue": 1644912,
  "mintcream": 16121850,
  "mistyrose": 16770273,
  "moccasin": 16770229,
  "navajowhite": 16768685,
  "navy": 128,
  "oldlace": 16643558,
  "olive": 8421376,
  "olivedrab": 7048739,
  "orange": 16753920,
  "orangered": 16729344,
  "orchid": 14315734,
  "palegoldenrod": 15657130,
  "palegreen": 10025880,
  "paleturquoise": 11529966,
  "palevioletred": 14381203,
  "papayawhip": 16773077,
  "peachpuff": 16767673,
  "peru": 13468991,
  "pink": 16761035,
  "plum": 14524637,
  "powderblue": 11591910,
  "purple": 8388736,
  "rebeccapurple": 6697881,
  "red": 16711680,
  "rosybrown": 12357519,
  "royalblue": 4286945,
  "saddlebrown": 9127187,
  "salmon": 16416882,
  "sandybrown": 16032864,
  "seagreen": 3050327,
  "seashell": 16774638,
  "sienna": 10506797,
  "silver": 12632256,
  "skyblue": 8900331,
  "slateblue": 6970061,
  "slategray": 7372944,
  "slategrey": 7372944,
  "snow": 16775930,
  "springgreen": 65407,
  "steelblue": 4620980,
  "tan": 13808780,
  "teal": 32896,
  "thistle": 14204888,
  "tomato": 16737095,
  "turquoise": 4251856,
  "violet": 15631086,
  "wheat": 16113331,
  "white": 16777215,
  "whitesmoke": 16119285,
  "yellow": 16776960,
  "yellowgreen": 10145074
};
var _hslA = { h: 0, s: 0, l: 0 };
var _hslB = { h: 0, s: 0, l: 0 };
function hue2rgb(p, q, t) {
  if (t < 0) t += 1;
  if (t > 1) t -= 1;
  if (t < 1 / 6) return p + (q - p) * 6 * t;
  if (t < 1 / 2) return q;
  if (t < 2 / 3) return p + (q - p) * 6 * (2 / 3 - t);
  return p;
}
var Color = class {
  constructor(r, g, b) {
    this.isColor = true;
    this.r = 1;
    this.g = 1;
    this.b = 1;
    return this.set(r, g, b);
  }
  set(r, g, b) {
    if (g === void 0 && b === void 0) {
      const value = r;
      if (value && value.isColor) {
        this.copy(value);
      } else if (typeof value === "number") {
        this.setHex(value);
      } else if (typeof value === "string") {
        this.setStyle(value);
      }
    } else {
      this.setRGB(r, g, b);
    }
    return this;
  }
  setScalar(scalar) {
    this.r = scalar;
    this.g = scalar;
    this.b = scalar;
    return this;
  }
  setHex(hex, colorSpace = SRGBColorSpace) {
    hex = Math.floor(hex);
    this.r = (hex >> 16 & 255) / 255;
    this.g = (hex >> 8 & 255) / 255;
    this.b = (hex & 255) / 255;
    ColorManagement.toWorkingColorSpace(this, colorSpace);
    return this;
  }
  setRGB(r, g, b, colorSpace = ColorManagement.workingColorSpace) {
    this.r = r;
    this.g = g;
    this.b = b;
    ColorManagement.toWorkingColorSpace(this, colorSpace);
    return this;
  }
  setHSL(h, s, l, colorSpace = ColorManagement.workingColorSpace) {
    h = euclideanModulo(h, 1);
    s = clamp(s, 0, 1);
    l = clamp(l, 0, 1);
    if (s === 0) {
      this.r = this.g = this.b = l;
    } else {
      const p = l <= 0.5 ? l * (1 + s) : l + s - l * s;
      const q = 2 * l - p;
      this.r = hue2rgb(q, p, h + 1 / 3);
      this.g = hue2rgb(q, p, h);
      this.b = hue2rgb(q, p, h - 1 / 3);
    }
    ColorManagement.toWorkingColorSpace(this, colorSpace);
    return this;
  }
  setStyle(style, colorSpace = SRGBColorSpace) {
    function handleAlpha(string) {
      if (string === void 0) return;
      if (parseFloat(string) < 1) {
        console.warn("THREE.Color: Alpha component of " + style + " will be ignored.");
      }
    }
    let m;
    if (m = /^(\w+)\(([^\)]*)\)/.exec(style)) {
      let color;
      const name = m[1];
      const components = m[2];
      switch (name) {
        case "rgb":
        case "rgba":
          if (color = /^\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
            handleAlpha(color[4]);
            return this.setRGB(
              Math.min(255, parseInt(color[1], 10)) / 255,
              Math.min(255, parseInt(color[2], 10)) / 255,
              Math.min(255, parseInt(color[3], 10)) / 255,
              colorSpace
            );
          }
          if (color = /^\s*(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
            handleAlpha(color[4]);
            return this.setRGB(
              Math.min(100, parseInt(color[1], 10)) / 100,
              Math.min(100, parseInt(color[2], 10)) / 100,
              Math.min(100, parseInt(color[3], 10)) / 100,
              colorSpace
            );
          }
          break;
        case "hsl":
        case "hsla":
          if (color = /^\s*(\d*\.?\d+)\s*,\s*(\d*\.?\d+)\%\s*,\s*(\d*\.?\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)) {
            handleAlpha(color[4]);
            return this.setHSL(
              parseFloat(color[1]) / 360,
              parseFloat(color[2]) / 100,
              parseFloat(color[3]) / 100,
              colorSpace
            );
          }
          break;
        default:
          console.warn("THREE.Color: Unknown color model " + style);
      }
    } else if (m = /^\#([A-Fa-f\d]+)$/.exec(style)) {
      const hex = m[1];
      const size = hex.length;
      if (size === 3) {
        return this.setRGB(
          parseInt(hex.charAt(0), 16) / 15,
          parseInt(hex.charAt(1), 16) / 15,
          parseInt(hex.charAt(2), 16) / 15,
          colorSpace
        );
      } else if (size === 6) {
        return this.setHex(parseInt(hex, 16), colorSpace);
      } else {
        console.warn("THREE.Color: Invalid hex color " + style);
      }
    } else if (style && style.length > 0) {
      return this.setColorName(style, colorSpace);
    }
    return this;
  }
  setColorName(style, colorSpace = SRGBColorSpace) {
    const hex = _colorKeywords[style.toLowerCase()];
    if (hex !== void 0) {
      this.setHex(hex, colorSpace);
    } else {
      console.warn("THREE.Color: Unknown color " + style);
    }
    return this;
  }
  clone() {
    return new this.constructor(this.r, this.g, this.b);
  }
  copy(color) {
    this.r = color.r;
    this.g = color.g;
    this.b = color.b;
    return this;
  }
  copySRGBToLinear(color) {
    this.r = SRGBToLinear(color.r);
    this.g = SRGBToLinear(color.g);
    this.b = SRGBToLinear(color.b);
    return this;
  }
  copyLinearToSRGB(color) {
    this.r = LinearToSRGB(color.r);
    this.g = LinearToSRGB(color.g);
    this.b = LinearToSRGB(color.b);
    return this;
  }
  convertSRGBToLinear() {
    this.copySRGBToLinear(this);
    return this;
  }
  convertLinearToSRGB() {
    this.copyLinearToSRGB(this);
    return this;
  }
  getHex(colorSpace = SRGBColorSpace) {
    ColorManagement.fromWorkingColorSpace(_color.copy(this), colorSpace);
    return Math.round(clamp(_color.r * 255, 0, 255)) * 65536 + Math.round(clamp(_color.g * 255, 0, 255)) * 256 + Math.round(clamp(_color.b * 255, 0, 255));
  }
  getHexString(colorSpace = SRGBColorSpace) {
    return ("000000" + this.getHex(colorSpace).toString(16)).slice(-6);
  }
  getHSL(target, colorSpace = ColorManagement.workingColorSpace) {
    ColorManagement.fromWorkingColorSpace(_color.copy(this), colorSpace);
    const r = _color.r, g = _color.g, b = _color.b;
    const max = Math.max(r, g, b);
    const min = Math.min(r, g, b);
    let hue, saturation;
    const lightness = (min + max) / 2;
    if (min === max) {
      hue = 0;
      saturation = 0;
    } else {
      const delta = max - min;
      saturation = lightness <= 0.5 ? delta / (max + min) : delta / (2 - max - min);
      switch (max) {
        case r:
          hue = (g - b) / delta + (g < b ? 6 : 0);
          break;
        case g:
          hue = (b - r) / delta + 2;
          break;
        case b:
          hue = (r - g) / delta + 4;
          break;
      }
      hue /= 6;
    }
    target.h = hue;
    target.s = saturation;
    target.l = lightness;
    return target;
  }
  getRGB(target, colorSpace = ColorManagement.workingColorSpace) {
    ColorManagement.fromWorkingColorSpace(_color.copy(this), colorSpace);
    target.r = _color.r;
    target.g = _color.g;
    target.b = _color.b;
    return target;
  }
  getStyle(colorSpace = SRGBColorSpace) {
    ColorManagement.fromWorkingColorSpace(_color.copy(this), colorSpace);
    const r = _color.r, g = _color.g, b = _color.b;
    if (colorSpace !== SRGBColorSpace) {
      return `color(${colorSpace} ${r.toFixed(3)} ${g.toFixed(3)} ${b.toFixed(3)})`;
    }
    return `rgb(${Math.round(r * 255)},${Math.round(g * 255)},${Math.round(b * 255)})`;
  }
  offsetHSL(h, s, l) {
    this.getHSL(_hslA);
    return this.setHSL(_hslA.h + h, _hslA.s + s, _hslA.l + l);
  }
  add(color) {
    this.r += color.r;
    this.g += color.g;
    this.b += color.b;
    return this;
  }
  addColors(color1, color2) {
    this.r = color1.r + color2.r;
    this.g = color1.g + color2.g;
    this.b = color1.b + color2.b;
    return this;
  }
  addScalar(s) {
    this.r += s;
    this.g += s;
    this.b += s;
    return this;
  }
  sub(color) {
    this.r = Math.max(0, this.r - color.r);
    this.g = Math.max(0, this.g - color.g);
    this.b = Math.max(0, this.b - color.b);
    return this;
  }
  multiply(color) {
    this.r *= color.r;
    this.g *= color.g;
    this.b *= color.b;
    return this;
  }
  multiplyScalar(s) {
    this.r *= s;
    this.g *= s;
    this.b *= s;
    return this;
  }
  lerp(color, alpha) {
    this.r += (color.r - this.r) * alpha;
    this.g += (color.g - this.g) * alpha;
    this.b += (color.b - this.b) * alpha;
    return this;
  }
  lerpColors(color1, color2, alpha) {
    this.r = color1.r + (color2.r - color1.r) * alpha;
    this.g = color1.g + (color2.g - color1.g) * alpha;
    this.b = color1.b + (color2.b - color1.b) * alpha;
    return this;
  }
  lerpHSL(color, alpha) {
    this.getHSL(_hslA);
    color.getHSL(_hslB);
    const h = lerp(_hslA.h, _hslB.h, alpha);
    const s = lerp(_hslA.s, _hslB.s, alpha);
    const l = lerp(_hslA.l, _hslB.l, alpha);
    this.setHSL(h, s, l);
    return this;
  }
  setFromVector3(v) {
    this.r = v.x;
    this.g = v.y;
    this.b = v.z;
    return this;
  }
  applyMatrix3(m) {
    const r = this.r, g = this.g, b = this.b;
    const e = m.elements;
    this.r = e[0] * r + e[3] * g + e[6] * b;
    this.g = e[1] * r + e[4] * g + e[7] * b;
    this.b = e[2] * r + e[5] * g + e[8] * b;
    return this;
  }
  equals(c) {
    return c.r === this.r && c.g === this.g && c.b === this.b;
  }
  fromArray(array, offset = 0) {
    this.r = array[offset];
    this.g = array[offset + 1];
    this.b = array[offset + 2];
    return this;
  }
  toArray(array = [], offset = 0) {
    array[offset] = this.r;
    array[offset + 1] = this.g;
    array[offset + 2] = this.b;
    return array;
  }
  fromBufferAttribute(attribute, index) {
    this.r = attribute.getX(index);
    this.g = attribute.getY(index);
    this.b = attribute.getZ(index);
    return this;
  }
  toJSON() {
    return this.getHex();
  }
  *[Symbol.iterator]() {
    yield this.r;
    yield this.g;
    yield this.b;
  }
};
var _color = /* @__PURE__ */ new Color();
Color.NAMES = _colorKeywords;
var _materialId = 0;
var Material = class extends EventDispatcher {
  constructor() {
    super();
    this.isMaterial = true;
    Object.defineProperty(this, "id", { value: _materialId++ });
    this.uuid = generateUUID();
    this.name = "";
    this.type = "Material";
    this.blending = NormalBlending;
    this.side = FrontSide;
    this.vertexColors = false;
    this.opacity = 1;
    this.transparent = false;
    this.alphaHash = false;
    this.blendSrc = SrcAlphaFactor;
    this.blendDst = OneMinusSrcAlphaFactor;
    this.blendEquation = AddEquation;
    this.blendSrcAlpha = null;
    this.blendDstAlpha = null;
    this.blendEquationAlpha = null;
    this.blendColor = new Color(0, 0, 0);
    this.blendAlpha = 0;
    this.depthFunc = LessEqualDepth;
    this.depthTest = true;
    this.depthWrite = true;
    this.stencilWriteMask = 255;
    this.stencilFunc = AlwaysStencilFunc;
    this.stencilRef = 0;
    this.stencilFuncMask = 255;
    this.stencilFail = KeepStencilOp;
    this.stencilZFail = KeepStencilOp;
    this.stencilZPass = KeepStencilOp;
    this.stencilWrite = false;
    this.clippingPlanes = null;
    this.clipIntersection = false;
    this.clipShadows = false;
    this.shadowSide = null;
    this.colorWrite = true;
    this.precision = null;
    this.polygonOffset = false;
    this.polygonOffsetFactor = 0;
    this.polygonOffsetUnits = 0;
    this.dithering = false;
    this.alphaToCoverage = false;
    this.premultipliedAlpha = false;
    this.forceSinglePass = false;
    this.visible = true;
    this.toneMapped = true;
    this.userData = {};
    this.version = 0;
    this._alphaTest = 0;
  }
  get alphaTest() {
    return this._alphaTest;
  }
  set alphaTest(value) {
    if (this._alphaTest > 0 !== value > 0) {
      this.version++;
    }
    this._alphaTest = value;
  }
  // onBeforeRender and onBeforeCompile only supported in WebGLRenderer
  onBeforeRender() {
  }
  onBeforeCompile() {
  }
  customProgramCacheKey() {
    return this.onBeforeCompile.toString();
  }
  setValues(values) {
    if (values === void 0) return;
    for (const key in values) {
      const newValue = values[key];
      if (newValue === void 0) {
        console.warn(`THREE.Material: parameter '${key}' has value of undefined.`);
        continue;
      }
      const currentValue = this[key];
      if (currentValue === void 0) {
        console.warn(`THREE.Material: '${key}' is not a property of THREE.${this.type}.`);
        continue;
      }
      if (currentValue && currentValue.isColor) {
        currentValue.set(newValue);
      } else if (currentValue && currentValue.isVector3 && (newValue && newValue.isVector3)) {
        currentValue.copy(newValue);
      } else {
        this[key] = newValue;
      }
    }
  }
  toJSON(meta) {
    const isRootObject = meta === void 0 || typeof meta === "string";
    if (isRootObject) {
      meta = {
        textures: {},
        images: {}
      };
    }
    const data = {
      metadata: {
        version: 4.6,
        type: "Material",
        generator: "Material.toJSON"
      }
    };
    data.uuid = this.uuid;
    data.type = this.type;
    if (this.name !== "") data.name = this.name;
    if (this.color && this.color.isColor) data.color = this.color.getHex();
    if (this.roughness !== void 0) data.roughness = this.roughness;
    if (this.metalness !== void 0) data.metalness = this.metalness;
    if (this.sheen !== void 0) data.sheen = this.sheen;
    if (this.sheenColor && this.sheenColor.isColor) data.sheenColor = this.sheenColor.getHex();
    if (this.sheenRoughness !== void 0) data.sheenRoughness = this.sheenRoughness;
    if (this.emissive && this.emissive.isColor) data.emissive = this.emissive.getHex();
    if (this.emissiveIntensity !== void 0 && this.emissiveIntensity !== 1) data.emissiveIntensity = this.emissiveIntensity;
    if (this.specular && this.specular.isColor) data.specular = this.specular.getHex();
    if (this.specularIntensity !== void 0) data.specularIntensity = this.specularIntensity;
    if (this.specularColor && this.specularColor.isColor) data.specularColor = this.specularColor.getHex();
    if (this.shininess !== void 0) data.shininess = this.shininess;
    if (this.clearcoat !== void 0) data.clearcoat = this.clearcoat;
    if (this.clearcoatRoughness !== void 0) data.clearcoatRoughness = this.clearcoatRoughness;
    if (this.clearcoatMap && this.clearcoatMap.isTexture) {
      data.clearcoatMap = this.clearcoatMap.toJSON(meta).uuid;
    }
    if (this.clearcoatRoughnessMap && this.clearcoatRoughnessMap.isTexture) {
      data.clearcoatRoughnessMap = this.clearcoatRoughnessMap.toJSON(meta).uuid;
    }
    if (this.clearcoatNormalMap && this.clearcoatNormalMap.isTexture) {
      data.clearcoatNormalMap = this.clearcoatNormalMap.toJSON(meta).uuid;
      data.clearcoatNormalScale = this.clearcoatNormalScale.toArray();
    }
    if (this.dispersion !== void 0) data.dispersion = this.dispersion;
    if (this.iridescence !== void 0) data.iridescence = this.iridescence;
    if (this.iridescenceIOR !== void 0) data.iridescenceIOR = this.iridescenceIOR;
    if (this.iridescenceThicknessRange !== void 0) data.iridescenceThicknessRange = this.iridescenceThicknessRange;
    if (this.iridescenceMap && this.iridescenceMap.isTexture) {
      data.iridescenceMap = this.iridescenceMap.toJSON(meta).uuid;
    }
    if (this.iridescenceThicknessMap && this.iridescenceThicknessMap.isTexture) {
      data.iridescenceThicknessMap = this.iridescenceThicknessMap.toJSON(meta).uuid;
    }
    if (this.anisotropy !== void 0) data.anisotropy = this.anisotropy;
    if (this.anisotropyRotation !== void 0) data.anisotropyRotation = this.anisotropyRotation;
    if (this.anisotropyMap && this.anisotropyMap.isTexture) {
      data.anisotropyMap = this.anisotropyMap.toJSON(meta).uuid;
    }
    if (this.map && this.map.isTexture) data.map = this.map.toJSON(meta).uuid;
    if (this.matcap && this.matcap.isTexture) data.matcap = this.matcap.toJSON(meta).uuid;
    if (this.alphaMap && this.alphaMap.isTexture) data.alphaMap = this.alphaMap.toJSON(meta).uuid;
    if (this.lightMap && this.lightMap.isTexture) {
      data.lightMap = this.lightMap.toJSON(meta).uuid;
      data.lightMapIntensity = this.lightMapIntensity;
    }
    if (this.aoMap && this.aoMap.isTexture) {
      data.aoMap = this.aoMap.toJSON(meta).uuid;
      data.aoMapIntensity = this.aoMapIntensity;
    }
    if (this.bumpMap && this.bumpMap.isTexture) {
      data.bumpMap = this.bumpMap.toJSON(meta).uuid;
      data.bumpScale = this.bumpScale;
    }
    if (this.normalMap && this.normalMap.isTexture) {
      data.normalMap = this.normalMap.toJSON(meta).uuid;
      data.normalMapType = this.normalMapType;
      data.normalScale = this.normalScale.toArray();
    }
    if (this.displacementMap && this.displacementMap.isTexture) {
      data.displacementMap = this.displacementMap.toJSON(meta).uuid;
      data.displacementScale = this.displacementScale;
      data.displacementBias = this.displacementBias;
    }
    if (this.roughnessMap && this.roughnessMap.isTexture) data.roughnessMap = this.roughnessMap.toJSON(meta).uuid;
    if (this.metalnessMap && this.metalnessMap.isTexture) data.metalnessMap = this.metalnessMap.toJSON(meta).uuid;
    if (this.emissiveMap && this.emissiveMap.isTexture) data.emissiveMap = this.emissiveMap.toJSON(meta).uuid;
    if (this.specularMap && this.specularMap.isTexture) data.specularMap = this.specularMap.toJSON(meta).uuid;
    if (this.specularIntensityMap && this.specularIntensityMap.isTexture) data.specularIntensityMap = this.specularIntensityMap.toJSON(meta).uuid;
    if (this.specularColorMap && this.specularColorMap.isTexture) data.specularColorMap = this.specularColorMap.toJSON(meta).uuid;
    if (this.envMap && this.envMap.isTexture) {
      data.envMap = this.envMap.toJSON(meta).uuid;
      if (this.combine !== void 0) data.combine = this.combine;
    }
    if (this.envMapRotation !== void 0) data.envMapRotation = this.envMapRotation.toArray();
    if (this.envMapIntensity !== void 0) data.envMapIntensity = this.envMapIntensity;
    if (this.reflectivity !== void 0) data.reflectivity = this.reflectivity;
    if (this.refractionRatio !== void 0) data.refractionRatio = this.refractionRatio;
    if (this.gradientMap && this.gradientMap.isTexture) {
      data.gradientMap = this.gradientMap.toJSON(meta).uuid;
    }
    if (this.transmission !== void 0) data.transmission = this.transmission;
    if (this.transmissionMap && this.transmissionMap.isTexture) data.transmissionMap = this.transmissionMap.toJSON(meta).uuid;
    if (this.thickness !== void 0) data.thickness = this.thickness;
    if (this.thicknessMap && this.thicknessMap.isTexture) data.thicknessMap = this.thicknessMap.toJSON(meta).uuid;
    if (this.attenuationDistance !== void 0 && this.attenuationDistance !== Infinity) data.attenuationDistance = this.attenuationDistance;
    if (this.attenuationColor !== void 0) data.attenuationColor = this.attenuationColor.getHex();
    if (this.size !== void 0) data.size = this.size;
    if (this.shadowSide !== null) data.shadowSide = this.shadowSide;
    if (this.sizeAttenuation !== void 0) data.sizeAttenuation = this.sizeAttenuation;
    if (this.blending !== NormalBlending) data.blending = this.blending;
    if (this.side !== FrontSide) data.side = this.side;
    if (this.vertexColors === true) data.vertexColors = true;
    if (this.opacity < 1) data.opacity = this.opacity;
    if (this.transparent === true) data.transparent = true;
    if (this.blendSrc !== SrcAlphaFactor) data.blendSrc = this.blendSrc;
    if (this.blendDst !== OneMinusSrcAlphaFactor) data.blendDst = this.blendDst;
    if (this.blendEquation !== AddEquation) data.blendEquation = this.blendEquation;
    if (this.blendSrcAlpha !== null) data.blendSrcAlpha = this.blendSrcAlpha;
    if (this.blendDstAlpha !== null) data.blendDstAlpha = this.blendDstAlpha;
    if (this.blendEquationAlpha !== null) data.blendEquationAlpha = this.blendEquationAlpha;
    if (this.blendColor && this.blendColor.isColor) data.blendColor = this.blendColor.getHex();
    if (this.blendAlpha !== 0) data.blendAlpha = this.blendAlpha;
    if (this.depthFunc !== LessEqualDepth) data.depthFunc = this.depthFunc;
    if (this.depthTest === false) data.depthTest = this.depthTest;
    if (this.depthWrite === false) data.depthWrite = this.depthWrite;
    if (this.colorWrite === false) data.colorWrite = this.colorWrite;
    if (this.stencilWriteMask !== 255) data.stencilWriteMask = this.stencilWriteMask;
    if (this.stencilFunc !== AlwaysStencilFunc) data.stencilFunc = this.stencilFunc;
    if (this.stencilRef !== 0) data.stencilRef = this.stencilRef;
    if (this.stencilFuncMask !== 255) data.stencilFuncMask = this.stencilFuncMask;
    if (this.stencilFail !== KeepStencilOp) data.stencilFail = this.stencilFail;
    if (this.stencilZFail !== KeepStencilOp) data.stencilZFail = this.stencilZFail;
    if (this.stencilZPass !== KeepStencilOp) data.stencilZPass = this.stencilZPass;
    if (this.stencilWrite === true) data.stencilWrite = this.stencilWrite;
    if (this.rotation !== void 0 && this.rotation !== 0) data.rotation = this.rotation;
    if (this.polygonOffset === true) data.polygonOffset = true;
    if (this.polygonOffsetFactor !== 0) data.polygonOffsetFactor = this.polygonOffsetFactor;
    if (this.polygonOffsetUnits !== 0) data.polygonOffsetUnits = this.polygonOffsetUnits;
    if (this.linewidth !== void 0 && this.linewidth !== 1) data.linewidth = this.linewidth;
    if (this.dashSize !== void 0) data.dashSize = this.dashSize;
    if (this.gapSize !== void 0) data.gapSize = this.gapSize;
    if (this.scale !== void 0) data.scale = this.scale;
    if (this.dithering === true) data.dithering = true;
    if (this.alphaTest > 0) data.alphaTest = this.alphaTest;
    if (this.alphaHash === true) data.alphaHash = true;
    if (this.alphaToCoverage === true) data.alphaToCoverage = true;
    if (this.premultipliedAlpha === true) data.premultipliedAlpha = true;
    if (this.forceSinglePass === true) data.forceSinglePass = true;
    if (this.wireframe === true) data.wireframe = true;
    if (this.wireframeLinewidth > 1) data.wireframeLinewidth = this.wireframeLinewidth;
    if (this.wireframeLinecap !== "round") data.wireframeLinecap = this.wireframeLinecap;
    if (this.wireframeLinejoin !== "round") data.wireframeLinejoin = this.wireframeLinejoin;
    if (this.flatShading === true) data.flatShading = true;
    if (this.visible === false) data.visible = false;
    if (this.toneMapped === false) data.toneMapped = false;
    if (this.fog === false) data.fog = false;
    if (Object.keys(this.userData).length > 0) data.userData = this.userData;
    function extractFromCache(cache) {
      const values = [];
      for (const key in cache) {
        const data2 = cache[key];
        delete data2.metadata;
        values.push(data2);
      }
      return values;
    }
    if (isRootObject) {
      const textures = extractFromCache(meta.textures);
      const images = extractFromCache(meta.images);
      if (textures.length > 0) data.textures = textures;
      if (images.length > 0) data.images = images;
    }
    return data;
  }
  clone() {
    return new this.constructor().copy(this);
  }
  copy(source) {
    this.name = source.name;
    this.blending = source.blending;
    this.side = source.side;
    this.vertexColors = source.vertexColors;
    this.opacity = source.opacity;
    this.transparent = source.transparent;
    this.blendSrc = source.blendSrc;
    this.blendDst = source.blendDst;
    this.blendEquation = source.blendEquation;
    this.blendSrcAlpha = source.blendSrcAlpha;
    this.blendDstAlpha = source.blendDstAlpha;
    this.blendEquationAlpha = source.blendEquationAlpha;
    this.blendColor.copy(source.blendColor);
    this.blendAlpha = source.blendAlpha;
    this.depthFunc = source.depthFunc;
    this.depthTest = source.depthTest;
    this.depthWrite = source.depthWrite;
    this.stencilWriteMask = source.stencilWriteMask;
    this.stencilFunc = source.stencilFunc;
    this.stencilRef = source.stencilRef;
    this.stencilFuncMask = source.stencilFuncMask;
    this.stencilFail = source.stencilFail;
    this.stencilZFail = source.stencilZFail;
    this.stencilZPass = source.stencilZPass;
    this.stencilWrite = source.stencilWrite;
    const srcPlanes = source.clippingPlanes;
    let dstPlanes = null;
    if (srcPlanes !== null) {
      const n = srcPlanes.length;
      dstPlanes = new Array(n);
      for (let i = 0; i !== n; ++i) {
        dstPlanes[i] = srcPlanes[i].clone();
      }
    }
    this.clippingPlanes = dstPlanes;
    this.clipIntersection = source.clipIntersection;
    this.clipShadows = source.clipShadows;
    this.shadowSide = source.shadowSide;
    this.colorWrite = source.colorWrite;
    this.precision = source.precision;
    this.polygonOffset = source.polygonOffset;
    this.polygonOffsetFactor = source.polygonOffsetFactor;
    this.polygonOffsetUnits = source.polygonOffsetUnits;
    this.dithering = source.dithering;
    this.alphaTest = source.alphaTest;
    this.alphaHash = source.alphaHash;
    this.alphaToCoverage = source.alphaToCoverage;
    this.premultipliedAlpha = source.premultipliedAlpha;
    this.forceSinglePass = source.forceSinglePass;
    this.visible = source.visible;
    this.toneMapped = source.toneMapped;
    this.userData = JSON.parse(JSON.stringify(source.userData));
    return this;
  }
  dispose() {
    this.dispatchEvent({ type: "dispose" });
  }
  set needsUpdate(value) {
    if (value === true) this.version++;
  }
  onBuild() {
    console.warn("Material: onBuild() has been removed.");
  }
};
var MeshBasicMaterial = class extends Material {
  constructor(parameters) {
    super();
    this.isMeshBasicMaterial = true;
    this.type = "MeshBasicMaterial";
    this.color = new Color(16777215);
    this.map = null;
    this.lightMap = null;
    this.lightMapIntensity = 1;
    this.aoMap = null;
    this.aoMapIntensity = 1;
    this.specularMap = null;
    this.alphaMap = null;
    this.envMap = null;
    this.envMapRotation = new Euler();
    this.combine = MultiplyOperation;
    this.reflectivity = 1;
    this.refractionRatio = 0.98;
    this.wireframe = false;
    this.wireframeLinewidth = 1;
    this.wireframeLinecap = "round";
    this.wireframeLinejoin = "round";
    this.fog = true;
    this.setValues(parameters);
  }
  copy(source) {
    super.copy(source);
    this.color.copy(source.color);
    this.map = source.map;
    this.lightMap = source.lightMap;
    this.lightMapIntensity = source.lightMapIntensity;
    this.aoMap = source.aoMap;
    this.aoMapIntensity = source.aoMapIntensity;
    this.specularMap = source.specularMap;
    this.alphaMap = source.alphaMap;
    this.envMap = source.envMap;
    this.envMapRotation.copy(source.envMapRotation);
    this.combine = source.combine;
    this.reflectivity = source.reflectivity;
    this.refractionRatio = source.refractionRatio;
    this.wireframe = source.wireframe;
    this.wireframeLinewidth = source.wireframeLinewidth;
    this.wireframeLinecap = source.wireframeLinecap;
    this.wireframeLinejoin = source.wireframeLinejoin;
    this.fog = source.fog;
    return this;
  }
};
var _vector$9 = /* @__PURE__ */ new Vector3();
var _vector2$1 = /* @__PURE__ */ new Vector2();
var BufferAttribute = class {
  constructor(array, itemSize, normalized = false) {
    if (Array.isArray(array)) {
      throw new TypeError("THREE.BufferAttribute: array should be a Typed Array.");
    }
    this.isBufferAttribute = true;
    this.name = "";
    this.array = array;
    this.itemSize = itemSize;
    this.count = array !== void 0 ? array.length / itemSize : 0;
    this.normalized = normalized;
    this.usage = StaticDrawUsage;
    this.updateRanges = [];
    this.gpuType = FloatType;
    this.version = 0;
  }
  onUploadCallback() {
  }
  set needsUpdate(value) {
    if (value === true) this.version++;
  }
  setUsage(value) {
    this.usage = value;
    return this;
  }
  addUpdateRange(start, count) {
    this.updateRanges.push({ start, count });
  }
  clearUpdateRanges() {
    this.updateRanges.length = 0;
  }
  copy(source) {
    this.name = source.name;
    this.array = new source.array.constructor(source.array);
    this.itemSize = source.itemSize;
    this.count = source.count;
    this.normalized = source.normalized;
    this.usage = source.usage;
    this.gpuType = source.gpuType;
    return this;
  }
  copyAt(index1, attribute, index2) {
    index1 *= this.itemSize;
    index2 *= attribute.itemSize;
    for (let i = 0, l = this.itemSize; i < l; i++) {
      this.array[index1 + i] = attribute.array[index2 + i];
    }
    return this;
  }
  copyArray(array) {
    this.array.set(array);
    return this;
  }
  applyMatrix3(m) {
    if (this.itemSize === 2) {
      for (let i = 0, l = this.count; i < l; i++) {
        _vector2$1.fromBufferAttribute(this, i);
        _vector2$1.applyMatrix3(m);
        this.setXY(i, _vector2$1.x, _vector2$1.y);
      }
    } else if (this.itemSize === 3) {
      for (let i = 0, l = this.count; i < l; i++) {
        _vector$9.fromBufferAttribute(this, i);
        _vector$9.applyMatrix3(m);
        this.setXYZ(i, _vector$9.x, _vector$9.y, _vector$9.z);
      }
    }
    return this;
  }
  applyMatrix4(m) {
    for (let i = 0, l = this.count; i < l; i++) {
      _vector$9.fromBufferAttribute(this, i);
      _vector$9.applyMatrix4(m);
      this.setXYZ(i, _vector$9.x, _vector$9.y, _vector$9.z);
    }
    return this;
  }
  applyNormalMatrix(m) {
    for (let i = 0, l = this.count; i < l; i++) {
      _vector$9.fromBufferAttribute(this, i);
      _vector$9.applyNormalMatrix(m);
      this.setXYZ(i, _vector$9.x, _vector$9.y, _vector$9.z);
    }
    return this;
  }
  transformDirection(m) {
    for (let i = 0, l = this.count; i < l; i++) {
      _vector$9.fromBufferAttribute(this, i);
      _vector$9.transformDirection(m);
      this.setXYZ(i, _vector$9.x, _vector$9.y, _vector$9.z);
    }
    return this;
  }
  set(value, offset = 0) {
    this.array.set(value, offset);
    return this;
  }
  getComponent(index, component) {
    let value = this.array[index * this.itemSize + component];
    if (this.normalized) value = denormalize(value, this.array);
    return value;
  }
  setComponent(index, component, value) {
    if (this.normalized) value = normalize(value, this.array);
    this.array[index * this.itemSize + component] = value;
    return this;
  }
  getX(index) {
    let x = this.array[index * this.itemSize];
    if (this.normalized) x = denormalize(x, this.array);
    return x;
  }
  setX(index, x) {
    if (this.normalized) x = normalize(x, this.array);
    this.array[index * this.itemSize] = x;
    return this;
  }
  getY(index) {
    let y = this.array[index * this.itemSize + 1];
    if (this.normalized) y = denormalize(y, this.array);
    return y;
  }
  setY(index, y) {
    if (this.normalized) y = normalize(y, this.array);
    this.array[index * this.itemSize + 1] = y;
    return this;
  }
  getZ(index) {
    let z = this.array[index * this.itemSize + 2];
    if (this.normalized) z = denormalize(z, this.array);
    return z;
  }
  setZ(index, z) {
    if (this.normalized) z = normalize(z, this.array);
    this.array[index * this.itemSize + 2] = z;
    return this;
  }
  getW(index) {
    let w = this.array[index * this.itemSize + 3];
    if (this.normalized) w = denormalize(w, this.array);
    return w;
  }
  setW(index, w) {
    if (this.normalized) w = normalize(w, this.array);
    this.array[index * this.itemSize + 3] = w;
    return this;
  }
  setXY(index, x, y) {
    index *= this.itemSize;
    if (this.normalized) {
      x = normalize(x, this.array);
      y = normalize(y, this.array);
    }
    this.array[index + 0] = x;
    this.array[index + 1] = y;
    return this;
  }
  setXYZ(index, x, y, z) {
    index *= this.itemSize;
    if (this.normalized) {
      x = normalize(x, this.array);
      y = normalize(y, this.array);
      z = normalize(z, this.array);
    }
    this.array[index + 0] = x;
    this.array[index + 1] = y;
    this.array[index + 2] = z;
    return this;
  }
  setXYZW(index, x, y, z, w) {
    index *= this.itemSize;
    if (this.normalized) {
      x = normalize(x, this.array);
      y = normalize(y, this.array);
      z = normalize(z, this.array);
      w = normalize(w, this.array);
    }
    this.array[index + 0] = x;
    this.array[index + 1] = y;
    this.array[index + 2] = z;
    this.array[index + 3] = w;
    return this;
  }
  onUpload(callback) {
    this.onUploadCallback = callback;
    return this;
  }
  clone() {
    return new this.constructor(this.array, this.itemSize).copy(this);
  }
  toJSON() {
    const data = {
      itemSize: this.itemSize,
      type: this.array.constructor.name,
      array: Array.from(this.array),
      normalized: this.normalized
    };
    if (this.name !== "") data.name = this.name;
    if (this.usage !== StaticDrawUsage) data.usage = this.usage;
    return data;
  }
};
var Uint16BufferAttribute = class extends BufferAttribute {
  constructor(array, itemSize, normalized) {
    super(new Uint16Array(array), itemSize, normalized);
  }
};
var Uint32BufferAttribute = class extends BufferAttribute {
  constructor(array, itemSize, normalized) {
    super(new Uint32Array(array), itemSize, normalized);
  }
};
var Float32BufferAttribute = class extends BufferAttribute {
  constructor(array, itemSize, normalized) {
    super(new Float32Array(array), itemSize, normalized);
  }
};
var _id$1 = 0;
var _m1 = /* @__PURE__ */ new Matrix4();
var _obj = /* @__PURE__ */ new Object3D();
var _offset = /* @__PURE__ */ new Vector3();
var _box$2 = /* @__PURE__ */ new Box3();
var _boxMorphTargets = /* @__PURE__ */ new Box3();
var _vector$8 = /* @__PURE__ */ new Vector3();
var BufferGeometry = class _BufferGeometry extends EventDispatcher {
  constructor() {
    super();
    this.isBufferGeometry = true;
    Object.defineProperty(this, "id", { value: _id$1++ });
    this.uuid = generateUUID();
    this.name = "";
    this.type = "BufferGeometry";
    this.index = null;
    this.indirect = null;
    this.attributes = {};
    this.morphAttributes = {};
    this.morphTargetsRelative = false;
    this.groups = [];
    this.boundingBox = null;
    this.boundingSphere = null;
    this.drawRange = { start: 0, count: Infinity };
    this.userData = {};
  }
  getIndex() {
    return this.index;
  }
  setIndex(index) {
    if (Array.isArray(index)) {
      this.index = new (arrayNeedsUint32(index) ? Uint32BufferAttribute : Uint16BufferAttribute)(index, 1);
    } else {
      this.index = index;
    }
    return this;
  }
  setIndirect(indirect) {
    this.indirect = indirect;
    return this;
  }
  getIndirect() {
    return this.indirect;
  }
  getAttribute(name) {
    return this.attributes[name];
  }
  setAttribute(name, attribute) {
    this.attributes[name] = attribute;
    return this;
  }
  deleteAttribute(name) {
    delete this.attributes[name];
    return this;
  }
  hasAttribute(name) {
    return this.attributes[name] !== void 0;
  }
  addGroup(start, count, materialIndex = 0) {
    this.groups.push({
      start,
      count,
      materialIndex
    });
  }
  clearGroups() {
    this.groups = [];
  }
  setDrawRange(start, count) {
    this.drawRange.start = start;
    this.drawRange.count = count;
  }
  applyMatrix4(matrix) {
    const position = this.attributes.position;
    if (position !== void 0) {
      position.applyMatrix4(matrix);
      position.needsUpdate = true;
    }
    const normal = this.attributes.normal;
    if (normal !== void 0) {
      const normalMatrix = new Matrix3().getNormalMatrix(matrix);
      normal.applyNormalMatrix(normalMatrix);
      normal.needsUpdate = true;
    }
    const tangent = this.attributes.tangent;
    if (tangent !== void 0) {
      tangent.transformDirection(matrix);
      tangent.needsUpdate = true;
    }
    if (this.boundingBox !== null) {
      this.computeBoundingBox();
    }
    if (this.boundingSphere !== null) {
      this.computeBoundingSphere();
    }
    return this;
  }
  applyQuaternion(q) {
    _m1.makeRotationFromQuaternion(q);
    this.applyMatrix4(_m1);
    return this;
  }
  rotateX(angle) {
    _m1.makeRotationX(angle);
    this.applyMatrix4(_m1);
    return this;
  }
  rotateY(angle) {
    _m1.makeRotationY(angle);
    this.applyMatrix4(_m1);
    return this;
  }
  rotateZ(angle) {
    _m1.makeRotationZ(angle);
    this.applyMatrix4(_m1);
    return this;
  }
  translate(x, y, z) {
    _m1.makeTranslation(x, y, z);
    this.applyMatrix4(_m1);
    return this;
  }
  scale(x, y, z) {
    _m1.makeScale(x, y, z);
    this.applyMatrix4(_m1);
    return this;
  }
  lookAt(vector) {
    _obj.lookAt(vector);
    _obj.updateMatrix();
    this.applyMatrix4(_obj.matrix);
    return this;
  }
  center() {
    this.computeBoundingBox();
    this.boundingBox.getCenter(_offset).negate();
    this.translate(_offset.x, _offset.y, _offset.z);
    return this;
  }
  setFromPoints(points) {
    const positionAttribute = this.getAttribute("position");
    if (positionAttribute === void 0) {
      const position = [];
      for (let i = 0, l = points.length; i < l; i++) {
        const point = points[i];
        position.push(point.x, point.y, point.z || 0);
      }
      this.setAttribute("position", new Float32BufferAttribute(position, 3));
    } else {
      const l = Math.min(points.length, positionAttribute.count);
      for (let i = 0; i < l; i++) {
        const point = points[i];
        positionAttribute.setXYZ(i, point.x, point.y, point.z || 0);
      }
      if (points.length > positionAttribute.count) {
        console.warn("THREE.BufferGeometry: Buffer size too small for points data. Use .dispose() and create a new geometry.");
      }
      positionAttribute.needsUpdate = true;
    }
    return this;
  }
  computeBoundingBox() {
    if (this.boundingBox === null) {
      this.boundingBox = new Box3();
    }
    const position = this.attributes.position;
    const morphAttributesPosition = this.morphAttributes.position;
    if (position && position.isGLBufferAttribute) {
      console.error("THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box.", this);
      this.boundingBox.set(
        new Vector3(-Infinity, -Infinity, -Infinity),
        new Vector3(Infinity, Infinity, Infinity)
      );
      return;
    }
    if (position !== void 0) {
      this.boundingBox.setFromBufferAttribute(position);
      if (morphAttributesPosition) {
        for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
          const morphAttribute = morphAttributesPosition[i];
          _box$2.setFromBufferAttribute(morphAttribute);
          if (this.morphTargetsRelative) {
            _vector$8.addVectors(this.boundingBox.min, _box$2.min);
            this.boundingBox.expandByPoint(_vector$8);
            _vector$8.addVectors(this.boundingBox.max, _box$2.max);
            this.boundingBox.expandByPoint(_vector$8);
          } else {
            this.boundingBox.expandByPoint(_box$2.min);
            this.boundingBox.expandByPoint(_box$2.max);
          }
        }
      }
    } else {
      this.boundingBox.makeEmpty();
    }
    if (isNaN(this.boundingBox.min.x) || isNaN(this.boundingBox.min.y) || isNaN(this.boundingBox.min.z)) {
      console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this);
    }
  }
  computeBoundingSphere() {
    if (this.boundingSphere === null) {
      this.boundingSphere = new Sphere();
    }
    const position = this.attributes.position;
    const morphAttributesPosition = this.morphAttributes.position;
    if (position && position.isGLBufferAttribute) {
      console.error("THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere.", this);
      this.boundingSphere.set(new Vector3(), Infinity);
      return;
    }
    if (position) {
      const center = this.boundingSphere.center;
      _box$2.setFromBufferAttribute(position);
      if (morphAttributesPosition) {
        for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
          const morphAttribute = morphAttributesPosition[i];
          _boxMorphTargets.setFromBufferAttribute(morphAttribute);
          if (this.morphTargetsRelative) {
            _vector$8.addVectors(_box$2.min, _boxMorphTargets.min);
            _box$2.expandByPoint(_vector$8);
            _vector$8.addVectors(_box$2.max, _boxMorphTargets.max);
            _box$2.expandByPoint(_vector$8);
          } else {
            _box$2.expandByPoint(_boxMorphTargets.min);
            _box$2.expandByPoint(_boxMorphTargets.max);
          }
        }
      }
      _box$2.getCenter(center);
      let maxRadiusSq = 0;
      for (let i = 0, il = position.count; i < il; i++) {
        _vector$8.fromBufferAttribute(position, i);
        maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(_vector$8));
      }
      if (morphAttributesPosition) {
        for (let i = 0, il = morphAttributesPosition.length; i < il; i++) {
          const morphAttribute = morphAttributesPosition[i];
          const morphTargetsRelative = this.morphTargetsRelative;
          for (let j = 0, jl = morphAttribute.count; j < jl; j++) {
            _vector$8.fromBufferAttribute(morphAttribute, j);
            if (morphTargetsRelative) {
              _offset.fromBufferAttribute(position, j);
              _vector$8.add(_offset);
            }
            maxRadiusSq = Math.max(maxRadiusSq, center.distanceToSquared(_vector$8));
          }
        }
      }
      this.boundingSphere.radius = Math.sqrt(maxRadiusSq);
      if (isNaN(this.boundingSphere.radius)) {
        console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this);
      }
    }
  }
  computeTangents() {
    const index = this.index;
    const attributes = this.attributes;
    if (index === null || attributes.position === void 0 || attributes.normal === void 0 || attributes.uv === void 0) {
      console.error("THREE.BufferGeometry: .computeTangents() failed. Missing required attributes (index, position, normal or uv)");
      return;
    }
    const positionAttribute = attributes.position;
    const normalAttribute = attributes.normal;
    const uvAttribute = attributes.uv;
    if (this.hasAttribute("tangent") === false) {
      this.setAttribute("tangent", new BufferAttribute(new Float32Array(4 * positionAttribute.count), 4));
    }
    const tangentAttribute = this.getAttribute("tangent");
    const tan1 = [], tan2 = [];
    for (let i = 0; i < positionAttribute.count; i++) {
      tan1[i] = new Vector3();
      tan2[i] = new Vector3();
    }
    const vA = new Vector3(), vB = new Vector3(), vC = new Vector3(), uvA = new Vector2(), uvB = new Vector2(), uvC = new Vector2(), sdir = new Vector3(), tdir = new Vector3();
    function handleTriangle(a, b, c) {
      vA.fromBufferAttribute(positionAttribute, a);
      vB.fromBufferAttribute(positionAttribute, b);
      vC.fromBufferAttribute(positionAttribute, c);
      uvA.fromBufferAttribute(uvAttribute, a);
      uvB.fromBufferAttribute(uvAttribute, b);
      uvC.fromBufferAttribute(uvAttribute, c);
      vB.sub(vA);
      vC.sub(vA);
      uvB.sub(uvA);
      uvC.sub(uvA);
      const r = 1 / (uvB.x * uvC.y - uvC.x * uvB.y);
      if (!isFinite(r)) return;
      sdir.copy(vB).multiplyScalar(uvC.y).addScaledVector(vC, -uvB.y).multiplyScalar(r);
      tdir.copy(vC).multiplyScalar(uvB.x).addScaledVector(vB, -uvC.x).multiplyScalar(r);
      tan1[a].add(sdir);
      tan1[b].add(sdir);
      tan1[c].add(sdir);
      tan2[a].add(tdir);
      tan2[b].add(tdir);
      tan2[c].add(tdir);
    }
    let groups = this.groups;
    if (groups.length === 0) {
      groups = [{
        start: 0,
        count: index.count
      }];
    }
    for (let i = 0, il = groups.length; i < il; ++i) {
      const group = groups[i];
      const start = group.start;
      const count = group.count;
      for (let j = start, jl = start + count; j < jl; j += 3) {
        handleTriangle(
          index.getX(j + 0),
          index.getX(j + 1),
          index.getX(j + 2)
        );
      }
    }
    const tmp = new Vector3(), tmp2 = new Vector3();
    const n = new Vector3(), n2 = new Vector3();
    function handleVertex(v) {
      n.fromBufferAttribute(normalAttribute, v);
      n2.copy(n);
      const t = tan1[v];
      tmp.copy(t);
      tmp.sub(n.multiplyScalar(n.dot(t))).normalize();
      tmp2.crossVectors(n2, t);
      const test = tmp2.dot(tan2[v]);
      const w = test < 0 ? -1 : 1;
      tangentAttribute.setXYZW(v, tmp.x, tmp.y, tmp.z, w);
    }
    for (let i = 0, il = groups.length; i < il; ++i) {
      const group = groups[i];
      const start = group.start;
      const count = group.count;
      for (let j = start, jl = start + count; j < jl; j += 3) {
        handleVertex(index.getX(j + 0));
        handleVertex(index.getX(j + 1));
        handleVertex(index.getX(j + 2));
      }
    }
  }
  computeVertexNormals() {
    const index = this.index;
    const positionAttribute = this.getAttribute("position");
    if (positionAttribute !== void 0) {
      let normalAttribute = this.getAttribute("normal");
      if (normalAttribute === void 0) {
        normalAttribute = new BufferAttribute(new Float32Array(positionAttribute.count * 3), 3);
        this.setAttribute("normal", normalAttribute);
      } else {
        for (let i = 0, il = normalAttribute.count; i < il; i++) {
          normalAttribute.setXYZ(i, 0, 0, 0);
        }
      }
      const pA = new Vector3(), pB = new Vector3(), pC = new Vector3();
      const nA = new Vector3(), nB = new Vector3(), nC = new Vector3();
      const cb = new Vector3(), ab = new Vector3();
      if (index) {
        for (let i = 0, il = index.count; i < il; i += 3) {
          const vA = index.getX(i + 0);
          const vB = index.getX(i + 1);
          const vC = index.getX(i + 2);
          pA.fromBufferAttribute(positionAttribute, vA);
          pB.fromBufferAttribute(positionAttribute, vB);
          pC.fromBufferAttribute(positionAttribute, vC);
          cb.subVectors(pC, pB);
          ab.subVectors(pA, pB);
          cb.cross(ab);
          nA.fromBufferAttribute(normalAttribute, vA);
          nB.fromBufferAttribute(normalAttribute, vB);
          nC.fromBufferAttribute(normalAttribute, vC);
          nA.add(cb);
          nB.add(cb);
          nC.add(cb);
          normalAttribute.setXYZ(vA, nA.x, nA.y, nA.z);
          normalAttribute.setXYZ(vB, nB.x, nB.y, nB.z);
          normalAttribute.setXYZ(vC, nC.x, nC.y, nC.z);
        }
      } else {
        for (let i = 0, il = positionAttribute.count; i < il; i += 3) {
          pA.fromBufferAttribute(positionAttribute, i + 0);
          pB.fromBufferAttribute(positionAttribute, i + 1);
          pC.fromBufferAttribute(positionAttribute, i + 2);
          cb.subVectors(pC, pB);
          ab.subVectors(pA, pB);
          cb.cross(ab);
          normalAttribute.setXYZ(i + 0, cb.x, cb.y, cb.z);
          normalAttribute.setXYZ(i + 1, cb.x, cb.y, cb.z);
          normalAttribute.setXYZ(i + 2, cb.x, cb.y, cb.z);
        }
      }
      this.normalizeNormals();
      normalAttribute.needsUpdate = true;
    }
  }
  normalizeNormals() {
    const normals = this.attributes.normal;
    for (let i = 0, il = normals.count; i < il; i++) {
      _vector$8.fromBufferAttribute(normals, i);
      _vector$8.normalize();
      normals.setXYZ(i, _vector$8.x, _vector$8.y, _vector$8.z);
    }
  }
  toNonIndexed() {
    function convertBufferAttribute(attribute, indices2) {
      const array = attribute.array;
      const itemSize = attribute.itemSize;
      const normalized = attribute.normalized;
      const array2 = new array.constructor(indices2.length * itemSize);
      let index = 0, index2 = 0;
      for (let i = 0, l = indices2.length; i < l; i++) {
        if (attribute.isInterleavedBufferAttribute) {
          index = indices2[i] * attribute.data.stride + attribute.offset;
        } else {
          index = indices2[i] * itemSize;
        }
        for (let j = 0; j < itemSize; j++) {
          array2[index2++] = array[index++];
        }
      }
      return new BufferAttribute(array2, itemSize, normalized);
    }
    if (this.index === null) {
      console.warn("THREE.BufferGeometry.toNonIndexed(): BufferGeometry is already non-indexed.");
      return this;
    }
    const geometry2 = new _BufferGeometry();
    const indices = this.index.array;
    const attributes = this.attributes;
    for (const name in attributes) {
      const attribute = attributes[name];
      const newAttribute = convertBufferAttribute(attribute, indices);
      geometry2.setAttribute(name, newAttribute);
    }
    const morphAttributes = this.morphAttributes;
    for (const name in morphAttributes) {
      const morphArray = [];
      const morphAttribute = morphAttributes[name];
      for (let i = 0, il = morphAttribute.length; i < il; i++) {
        const attribute = morphAttribute[i];
        const newAttribute = convertBufferAttribute(attribute, indices);
        morphArray.push(newAttribute);
      }
      geometry2.morphAttributes[name] = morphArray;
    }
    geometry2.morphTargetsRelative = this.morphTargetsRelative;
    const groups = this.groups;
    for (let i = 0, l = groups.length; i < l; i++) {
      const group = groups[i];
      geometry2.addGroup(group.start, group.count, group.materialIndex);
    }
    return geometry2;
  }
  toJSON() {
    const data = {
      metadata: {
        version: 4.6,
        type: "BufferGeometry",
        generator: "BufferGeometry.toJSON"
      }
    };
    data.uuid = this.uuid;
    data.type = this.type;
    if (this.name !== "") data.name = this.name;
    if (Object.keys(this.userData).length > 0) data.userData = this.userData;
    if (this.parameters !== void 0) {
      const parameters = this.parameters;
      for (const key in parameters) {
        if (parameters[key] !== void 0) data[key] = parameters[key];
      }
      return data;
    }
    data.data = { attributes: {} };
    const index = this.index;
    if (index !== null) {
      data.data.index = {
        type: index.array.constructor.name,
        array: Array.prototype.slice.call(index.array)
      };
    }
    const attributes = this.attributes;
    for (const key in attributes) {
      const attribute = attributes[key];
      data.data.attributes[key] = attribute.toJSON(data.data);
    }
    const morphAttributes = {};
    let hasMorphAttributes = false;
    for (const key in this.morphAttributes) {
      const attributeArray = this.morphAttributes[key];
      const array = [];
      for (let i = 0, il = attributeArray.length; i < il; i++) {
        const attribute = attributeArray[i];
        array.push(attribute.toJSON(data.data));
      }
      if (array.length > 0) {
        morphAttributes[key] = array;
        hasMorphAttributes = true;
      }
    }
    if (hasMorphAttributes) {
      data.data.morphAttributes = morphAttributes;
      data.data.morphTargetsRelative = this.morphTargetsRelative;
    }
    const groups = this.groups;
    if (groups.length > 0) {
      data.data.groups = JSON.parse(JSON.stringify(groups));
    }
    const boundingSphere = this.boundingSphere;
    if (boundingSphere !== null) {
      data.data.boundingSphere = {
        center: boundingSphere.center.toArray(),
        radius: boundingSphere.radius
      };
    }
    return data;
  }
  clone() {
    return new this.constructor().copy(this);
  }
  copy(source) {
    this.index = null;
    this.attributes = {};
    this.morphAttributes = {};
    this.groups = [];
    this.boundingBox = null;
    this.boundingSphere = null;
    const data = {};
    this.name = source.name;
    const index = source.index;
    if (index !== null) {
      this.setIndex(index.clone(data));
    }
    const attributes = source.attributes;
    for (const name in attributes) {
      const attribute = attributes[name];
      this.setAttribute(name, attribute.clone(data));
    }
    const morphAttributes = source.morphAttributes;
    for (const name in morphAttributes) {
      const array = [];
      const morphAttribute = morphAttributes[name];
      for (let i = 0, l = morphAttribute.length; i < l; i++) {
        array.push(morphAttribute[i].clone(data));
      }
      this.morphAttributes[name] = array;
    }
    this.morphTargetsRelative = source.morphTargetsRelative;
    const groups = source.groups;
    for (let i = 0, l = groups.length; i < l; i++) {
      const group = groups[i];
      this.addGroup(group.start, group.count, group.materialIndex);
    }
    const boundingBox = source.boundingBox;
    if (boundingBox !== null) {
      this.boundingBox = boundingBox.clone();
    }
    const boundingSphere = source.boundingSphere;
    if (boundingSphere !== null) {
      this.boundingSphere = boundingSphere.clone();
    }
    this.drawRange.start = source.drawRange.start;
    this.drawRange.count = source.drawRange.count;
    this.userData = source.userData;
    return this;
  }
  dispose() {
    this.dispatchEvent({ type: "dispose" });
  }
};
var _inverseMatrix$3 = /* @__PURE__ */ new Matrix4();
var _ray$3 = /* @__PURE__ */ new Ray();
var _sphere$6 = /* @__PURE__ */ new Sphere();
var _sphereHitAt = /* @__PURE__ */ new Vector3();
var _vA$1 = /* @__PURE__ */ new Vector3();
var _vB$1 = /* @__PURE__ */ new Vector3();
var _vC$1 = /* @__PURE__ */ new Vector3();
var _tempA = /* @__PURE__ */ new Vector3();
var _morphA = /* @__PURE__ */ new Vector3();
var _intersectionPoint = /* @__PURE__ */ new Vector3();
var _intersectionPointWorld = /* @__PURE__ */ new Vector3();
var Mesh = class extends Object3D {
  constructor(geometry = new BufferGeometry(), material = new MeshBasicMaterial()) {
    super();
    this.isMesh = true;
    this.type = "Mesh";
    this.geometry = geometry;
    this.material = material;
    this.updateMorphTargets();
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    if (source.morphTargetInfluences !== void 0) {
      this.morphTargetInfluences = source.morphTargetInfluences.slice();
    }
    if (source.morphTargetDictionary !== void 0) {
      this.morphTargetDictionary = Object.assign({}, source.morphTargetDictionary);
    }
    this.material = Array.isArray(source.material) ? source.material.slice() : source.material;
    this.geometry = source.geometry;
    return this;
  }
  updateMorphTargets() {
    const geometry = this.geometry;
    const morphAttributes = geometry.morphAttributes;
    const keys = Object.keys(morphAttributes);
    if (keys.length > 0) {
      const morphAttribute = morphAttributes[keys[0]];
      if (morphAttribute !== void 0) {
        this.morphTargetInfluences = [];
        this.morphTargetDictionary = {};
        for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
          const name = morphAttribute[m].name || String(m);
          this.morphTargetInfluences.push(0);
          this.morphTargetDictionary[name] = m;
        }
      }
    }
  }
  getVertexPosition(index, target) {
    const geometry = this.geometry;
    const position = geometry.attributes.position;
    const morphPosition = geometry.morphAttributes.position;
    const morphTargetsRelative = geometry.morphTargetsRelative;
    target.fromBufferAttribute(position, index);
    const morphInfluences = this.morphTargetInfluences;
    if (morphPosition && morphInfluences) {
      _morphA.set(0, 0, 0);
      for (let i = 0, il = morphPosition.length; i < il; i++) {
        const influence = morphInfluences[i];
        const morphAttribute = morphPosition[i];
        if (influence === 0) continue;
        _tempA.fromBufferAttribute(morphAttribute, index);
        if (morphTargetsRelative) {
          _morphA.addScaledVector(_tempA, influence);
        } else {
          _morphA.addScaledVector(_tempA.sub(target), influence);
        }
      }
      target.add(_morphA);
    }
    return target;
  }
  raycast(raycaster, intersects) {
    const geometry = this.geometry;
    const material = this.material;
    const matrixWorld = this.matrixWorld;
    if (material === void 0) return;
    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
    _sphere$6.copy(geometry.boundingSphere);
    _sphere$6.applyMatrix4(matrixWorld);
    _ray$3.copy(raycaster.ray).recast(raycaster.near);
    if (_sphere$6.containsPoint(_ray$3.origin) === false) {
      if (_ray$3.intersectSphere(_sphere$6, _sphereHitAt) === null) return;
      if (_ray$3.origin.distanceToSquared(_sphereHitAt) > (raycaster.far - raycaster.near) ** 2) return;
    }
    _inverseMatrix$3.copy(matrixWorld).invert();
    _ray$3.copy(raycaster.ray).applyMatrix4(_inverseMatrix$3);
    if (geometry.boundingBox !== null) {
      if (_ray$3.intersectsBox(geometry.boundingBox) === false) return;
    }
    this._computeIntersections(raycaster, intersects, _ray$3);
  }
  _computeIntersections(raycaster, intersects, rayLocalSpace) {
    let intersection;
    const geometry = this.geometry;
    const material = this.material;
    const index = geometry.index;
    const position = geometry.attributes.position;
    const uv = geometry.attributes.uv;
    const uv1 = geometry.attributes.uv1;
    const normal = geometry.attributes.normal;
    const groups = geometry.groups;
    const drawRange = geometry.drawRange;
    if (index !== null) {
      if (Array.isArray(material)) {
        for (let i = 0, il = groups.length; i < il; i++) {
          const group = groups[i];
          const groupMaterial = material[group.materialIndex];
          const start = Math.max(group.start, drawRange.start);
          const end = Math.min(index.count, Math.min(group.start + group.count, drawRange.start + drawRange.count));
          for (let j = start, jl = end; j < jl; j += 3) {
            const a = index.getX(j);
            const b = index.getX(j + 1);
            const c = index.getX(j + 2);
            intersection = checkGeometryIntersection(this, groupMaterial, raycaster, rayLocalSpace, uv, uv1, normal, a, b, c);
            if (intersection) {
              intersection.faceIndex = Math.floor(j / 3);
              intersection.face.materialIndex = group.materialIndex;
              intersects.push(intersection);
            }
          }
        }
      } else {
        const start = Math.max(0, drawRange.start);
        const end = Math.min(index.count, drawRange.start + drawRange.count);
        for (let i = start, il = end; i < il; i += 3) {
          const a = index.getX(i);
          const b = index.getX(i + 1);
          const c = index.getX(i + 2);
          intersection = checkGeometryIntersection(this, material, raycaster, rayLocalSpace, uv, uv1, normal, a, b, c);
          if (intersection) {
            intersection.faceIndex = Math.floor(i / 3);
            intersects.push(intersection);
          }
        }
      }
    } else if (position !== void 0) {
      if (Array.isArray(material)) {
        for (let i = 0, il = groups.length; i < il; i++) {
          const group = groups[i];
          const groupMaterial = material[group.materialIndex];
          const start = Math.max(group.start, drawRange.start);
          const end = Math.min(position.count, Math.min(group.start + group.count, drawRange.start + drawRange.count));
          for (let j = start, jl = end; j < jl; j += 3) {
            const a = j;
            const b = j + 1;
            const c = j + 2;
            intersection = checkGeometryIntersection(this, groupMaterial, raycaster, rayLocalSpace, uv, uv1, normal, a, b, c);
            if (intersection) {
              intersection.faceIndex = Math.floor(j / 3);
              intersection.face.materialIndex = group.materialIndex;
              intersects.push(intersection);
            }
          }
        }
      } else {
        const start = Math.max(0, drawRange.start);
        const end = Math.min(position.count, drawRange.start + drawRange.count);
        for (let i = start, il = end; i < il; i += 3) {
          const a = i;
          const b = i + 1;
          const c = i + 2;
          intersection = checkGeometryIntersection(this, material, raycaster, rayLocalSpace, uv, uv1, normal, a, b, c);
          if (intersection) {
            intersection.faceIndex = Math.floor(i / 3);
            intersects.push(intersection);
          }
        }
      }
    }
  }
};
function checkIntersection$1(object, material, raycaster, ray, pA, pB, pC, point) {
  let intersect;
  if (material.side === BackSide) {
    intersect = ray.intersectTriangle(pC, pB, pA, true, point);
  } else {
    intersect = ray.intersectTriangle(pA, pB, pC, material.side === FrontSide, point);
  }
  if (intersect === null) return null;
  _intersectionPointWorld.copy(point);
  _intersectionPointWorld.applyMatrix4(object.matrixWorld);
  const distance = raycaster.ray.origin.distanceTo(_intersectionPointWorld);
  if (distance < raycaster.near || distance > raycaster.far) return null;
  return {
    distance,
    point: _intersectionPointWorld.clone(),
    object
  };
}
function checkGeometryIntersection(object, material, raycaster, ray, uv, uv1, normal, a, b, c) {
  object.getVertexPosition(a, _vA$1);
  object.getVertexPosition(b, _vB$1);
  object.getVertexPosition(c, _vC$1);
  const intersection = checkIntersection$1(object, material, raycaster, ray, _vA$1, _vB$1, _vC$1, _intersectionPoint);
  if (intersection) {
    const barycoord = new Vector3();
    Triangle.getBarycoord(_intersectionPoint, _vA$1, _vB$1, _vC$1, barycoord);
    if (uv) {
      intersection.uv = Triangle.getInterpolatedAttribute(uv, a, b, c, barycoord, new Vector2());
    }
    if (uv1) {
      intersection.uv1 = Triangle.getInterpolatedAttribute(uv1, a, b, c, barycoord, new Vector2());
    }
    if (normal) {
      intersection.normal = Triangle.getInterpolatedAttribute(normal, a, b, c, barycoord, new Vector3());
      if (intersection.normal.dot(ray.direction) > 0) {
        intersection.normal.multiplyScalar(-1);
      }
    }
    const face = {
      a,
      b,
      c,
      normal: new Vector3(),
      materialIndex: 0
    };
    Triangle.getNormal(_vA$1, _vB$1, _vC$1, face.normal);
    intersection.face = face;
    intersection.barycoord = barycoord;
  }
  return intersection;
}
var BoxGeometry = class _BoxGeometry extends BufferGeometry {
  constructor(width = 1, height = 1, depth = 1, widthSegments = 1, heightSegments = 1, depthSegments = 1) {
    super();
    this.type = "BoxGeometry";
    this.parameters = {
      width,
      height,
      depth,
      widthSegments,
      heightSegments,
      depthSegments
    };
    const scope = this;
    widthSegments = Math.floor(widthSegments);
    heightSegments = Math.floor(heightSegments);
    depthSegments = Math.floor(depthSegments);
    const indices = [];
    const vertices = [];
    const normals = [];
    const uvs = [];
    let numberOfVertices = 0;
    let groupStart = 0;
    buildPlane("z", "y", "x", -1, -1, depth, height, width, depthSegments, heightSegments, 0);
    buildPlane("z", "y", "x", 1, -1, depth, height, -width, depthSegments, heightSegments, 1);
    buildPlane("x", "z", "y", 1, 1, width, depth, height, widthSegments, depthSegments, 2);
    buildPlane("x", "z", "y", 1, -1, width, depth, -height, widthSegments, depthSegments, 3);
    buildPlane("x", "y", "z", 1, -1, width, height, depth, widthSegments, heightSegments, 4);
    buildPlane("x", "y", "z", -1, -1, width, height, -depth, widthSegments, heightSegments, 5);
    this.setIndex(indices);
    this.setAttribute("position", new Float32BufferAttribute(vertices, 3));
    this.setAttribute("normal", new Float32BufferAttribute(normals, 3));
    this.setAttribute("uv", new Float32BufferAttribute(uvs, 2));
    function buildPlane(u, v, w, udir, vdir, width2, height2, depth2, gridX, gridY, materialIndex) {
      const segmentWidth = width2 / gridX;
      const segmentHeight = height2 / gridY;
      const widthHalf = width2 / 2;
      const heightHalf = height2 / 2;
      const depthHalf = depth2 / 2;
      const gridX1 = gridX + 1;
      const gridY1 = gridY + 1;
      let vertexCounter = 0;
      let groupCount = 0;
      const vector = new Vector3();
      for (let iy = 0; iy < gridY1; iy++) {
        const y = iy * segmentHeight - heightHalf;
        for (let ix = 0; ix < gridX1; ix++) {
          const x = ix * segmentWidth - widthHalf;
          vector[u] = x * udir;
          vector[v] = y * vdir;
          vector[w] = depthHalf;
          vertices.push(vector.x, vector.y, vector.z);
          vector[u] = 0;
          vector[v] = 0;
          vector[w] = depth2 > 0 ? 1 : -1;
          normals.push(vector.x, vector.y, vector.z);
          uvs.push(ix / gridX);
          uvs.push(1 - iy / gridY);
          vertexCounter += 1;
        }
      }
      for (let iy = 0; iy < gridY; iy++) {
        for (let ix = 0; ix < gridX; ix++) {
          const a = numberOfVertices + ix + gridX1 * iy;
          const b = numberOfVertices + ix + gridX1 * (iy + 1);
          const c = numberOfVertices + (ix + 1) + gridX1 * (iy + 1);
          const d = numberOfVertices + (ix + 1) + gridX1 * iy;
          indices.push(a, b, d);
          indices.push(b, c, d);
          groupCount += 6;
        }
      }
      scope.addGroup(groupStart, groupCount, materialIndex);
      groupStart += groupCount;
      numberOfVertices += vertexCounter;
    }
  }
  copy(source) {
    super.copy(source);
    this.parameters = Object.assign({}, source.parameters);
    return this;
  }
  static fromJSON(data) {
    return new _BoxGeometry(data.width, data.height, data.depth, data.widthSegments, data.heightSegments, data.depthSegments);
  }
};
function cloneUniforms(src) {
  const dst = {};
  for (const u in src) {
    dst[u] = {};
    for (const p in src[u]) {
      const property = src[u][p];
      if (property && (property.isColor || property.isMatrix3 || property.isMatrix4 || property.isVector2 || property.isVector3 || property.isVector4 || property.isTexture || property.isQuaternion)) {
        if (property.isRenderTargetTexture) {
          console.warn("UniformsUtils: Textures of render targets cannot be cloned via cloneUniforms() or mergeUniforms().");
          dst[u][p] = null;
        } else {
          dst[u][p] = property.clone();
        }
      } else if (Array.isArray(property)) {
        dst[u][p] = property.slice();
      } else {
        dst[u][p] = property;
      }
    }
  }
  return dst;
}
function mergeUniforms(uniforms) {
  const merged = {};
  for (let u = 0; u < uniforms.length; u++) {
    const tmp = cloneUniforms(uniforms[u]);
    for (const p in tmp) {
      merged[p] = tmp[p];
    }
  }
  return merged;
}
function cloneUniformsGroups(src) {
  const dst = [];
  for (let u = 0; u < src.length; u++) {
    dst.push(src[u].clone());
  }
  return dst;
}
function getUnlitUniformColorSpace(renderer) {
  const currentRenderTarget = renderer.getRenderTarget();
  if (currentRenderTarget === null) {
    return renderer.outputColorSpace;
  }
  if (currentRenderTarget.isXRRenderTarget === true) {
    return currentRenderTarget.texture.colorSpace;
  }
  return ColorManagement.workingColorSpace;
}
var UniformsUtils = { clone: cloneUniforms, merge: mergeUniforms };
var default_vertex = "void main() {\n	gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";
var default_fragment = "void main() {\n	gl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";
var ShaderMaterial = class extends Material {
  constructor(parameters) {
    super();
    this.isShaderMaterial = true;
    this.type = "ShaderMaterial";
    this.defines = {};
    this.uniforms = {};
    this.uniformsGroups = [];
    this.vertexShader = default_vertex;
    this.fragmentShader = default_fragment;
    this.linewidth = 1;
    this.wireframe = false;
    this.wireframeLinewidth = 1;
    this.fog = false;
    this.lights = false;
    this.clipping = false;
    this.forceSinglePass = true;
    this.extensions = {
      clipCullDistance: false,
      // set to use vertex shader clipping
      multiDraw: false
      // set to use vertex shader multi_draw / enable gl_DrawID
    };
    this.defaultAttributeValues = {
      "color": [1, 1, 1],
      "uv": [0, 0],
      "uv1": [0, 0]
    };
    this.index0AttributeName = void 0;
    this.uniformsNeedUpdate = false;
    this.glslVersion = null;
    if (parameters !== void 0) {
      this.setValues(parameters);
    }
  }
  copy(source) {
    super.copy(source);
    this.fragmentShader = source.fragmentShader;
    this.vertexShader = source.vertexShader;
    this.uniforms = cloneUniforms(source.uniforms);
    this.uniformsGroups = cloneUniformsGroups(source.uniformsGroups);
    this.defines = Object.assign({}, source.defines);
    this.wireframe = source.wireframe;
    this.wireframeLinewidth = source.wireframeLinewidth;
    this.fog = source.fog;
    this.lights = source.lights;
    this.clipping = source.clipping;
    this.extensions = Object.assign({}, source.extensions);
    this.glslVersion = source.glslVersion;
    return this;
  }
  toJSON(meta) {
    const data = super.toJSON(meta);
    data.glslVersion = this.glslVersion;
    data.uniforms = {};
    for (const name in this.uniforms) {
      const uniform = this.uniforms[name];
      const value = uniform.value;
      if (value && value.isTexture) {
        data.uniforms[name] = {
          type: "t",
          value: value.toJSON(meta).uuid
        };
      } else if (value && value.isColor) {
        data.uniforms[name] = {
          type: "c",
          value: value.getHex()
        };
      } else if (value && value.isVector2) {
        data.uniforms[name] = {
          type: "v2",
          value: value.toArray()
        };
      } else if (value && value.isVector3) {
        data.uniforms[name] = {
          type: "v3",
          value: value.toArray()
        };
      } else if (value && value.isVector4) {
        data.uniforms[name] = {
          type: "v4",
          value: value.toArray()
        };
      } else if (value && value.isMatrix3) {
        data.uniforms[name] = {
          type: "m3",
          value: value.toArray()
        };
      } else if (value && value.isMatrix4) {
        data.uniforms[name] = {
          type: "m4",
          value: value.toArray()
        };
      } else {
        data.uniforms[name] = {
          value
        };
      }
    }
    if (Object.keys(this.defines).length > 0) data.defines = this.defines;
    data.vertexShader = this.vertexShader;
    data.fragmentShader = this.fragmentShader;
    data.lights = this.lights;
    data.clipping = this.clipping;
    const extensions = {};
    for (const key in this.extensions) {
      if (this.extensions[key] === true) extensions[key] = true;
    }
    if (Object.keys(extensions).length > 0) data.extensions = extensions;
    return data;
  }
};
var Camera = class extends Object3D {
  constructor() {
    super();
    this.isCamera = true;
    this.type = "Camera";
    this.matrixWorldInverse = new Matrix4();
    this.projectionMatrix = new Matrix4();
    this.projectionMatrixInverse = new Matrix4();
    this.coordinateSystem = WebGLCoordinateSystem;
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.matrixWorldInverse.copy(source.matrixWorldInverse);
    this.projectionMatrix.copy(source.projectionMatrix);
    this.projectionMatrixInverse.copy(source.projectionMatrixInverse);
    this.coordinateSystem = source.coordinateSystem;
    return this;
  }
  getWorldDirection(target) {
    return super.getWorldDirection(target).negate();
  }
  updateMatrixWorld(force) {
    super.updateMatrixWorld(force);
    this.matrixWorldInverse.copy(this.matrixWorld).invert();
  }
  updateWorldMatrix(updateParents, updateChildren) {
    super.updateWorldMatrix(updateParents, updateChildren);
    this.matrixWorldInverse.copy(this.matrixWorld).invert();
  }
  clone() {
    return new this.constructor().copy(this);
  }
};
var _v3$1 = /* @__PURE__ */ new Vector3();
var _minTarget = /* @__PURE__ */ new Vector2();
var _maxTarget = /* @__PURE__ */ new Vector2();
var PerspectiveCamera = class extends Camera {
  constructor(fov2 = 50, aspect2 = 1, near = 0.1, far = 2e3) {
    super();
    this.isPerspectiveCamera = true;
    this.type = "PerspectiveCamera";
    this.fov = fov2;
    this.zoom = 1;
    this.near = near;
    this.far = far;
    this.focus = 10;
    this.aspect = aspect2;
    this.view = null;
    this.filmGauge = 35;
    this.filmOffset = 0;
    this.updateProjectionMatrix();
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.fov = source.fov;
    this.zoom = source.zoom;
    this.near = source.near;
    this.far = source.far;
    this.focus = source.focus;
    this.aspect = source.aspect;
    this.view = source.view === null ? null : Object.assign({}, source.view);
    this.filmGauge = source.filmGauge;
    this.filmOffset = source.filmOffset;
    return this;
  }
  /**
   * Sets the FOV by focal length in respect to the current .filmGauge.
   *
   * The default film gauge is 35, so that the focal length can be specified for
   * a 35mm (full frame) camera.
   *
   * Values for focal length and film gauge must have the same unit.
   */
  setFocalLength(focalLength) {
    const vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;
    this.fov = RAD2DEG * 2 * Math.atan(vExtentSlope);
    this.updateProjectionMatrix();
  }
  /**
   * Calculates the focal length from the current .fov and .filmGauge.
   */
  getFocalLength() {
    const vExtentSlope = Math.tan(DEG2RAD * 0.5 * this.fov);
    return 0.5 * this.getFilmHeight() / vExtentSlope;
  }
  getEffectiveFOV() {
    return RAD2DEG * 2 * Math.atan(
      Math.tan(DEG2RAD * 0.5 * this.fov) / this.zoom
    );
  }
  getFilmWidth() {
    return this.filmGauge * Math.min(this.aspect, 1);
  }
  getFilmHeight() {
    return this.filmGauge / Math.max(this.aspect, 1);
  }
  /**
   * Computes the 2D bounds of the camera's viewable rectangle at a given distance along the viewing direction.
   * Sets minTarget and maxTarget to the coordinates of the lower-left and upper-right corners of the view rectangle.
   */
  getViewBounds(distance, minTarget, maxTarget) {
    _v3$1.set(-1, -1, 0.5).applyMatrix4(this.projectionMatrixInverse);
    minTarget.set(_v3$1.x, _v3$1.y).multiplyScalar(-distance / _v3$1.z);
    _v3$1.set(1, 1, 0.5).applyMatrix4(this.projectionMatrixInverse);
    maxTarget.set(_v3$1.x, _v3$1.y).multiplyScalar(-distance / _v3$1.z);
  }
  /**
   * Computes the width and height of the camera's viewable rectangle at a given distance along the viewing direction.
   * Copies the result into the target Vector2, where x is width and y is height.
   */
  getViewSize(distance, target) {
    this.getViewBounds(distance, _minTarget, _maxTarget);
    return target.subVectors(_maxTarget, _minTarget);
  }
  /**
   * Sets an offset in a larger frustum. This is useful for multi-window or
   * multi-monitor/multi-machine setups.
   *
   * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
   * the monitors are in grid like this
   *
   *   +---+---+---+
   *   | A | B | C |
   *   +---+---+---+
   *   | D | E | F |
   *   +---+---+---+
   *
   * then for each monitor you would call it like this
   *
   *   const w = 1920;
   *   const h = 1080;
   *   const fullWidth = w * 3;
   *   const fullHeight = h * 2;
   *
   *   --A--
   *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
   *   --B--
   *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
   *   --C--
   *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
   *   --D--
   *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
   *   --E--
   *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
   *   --F--
   *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
   *
   *   Note there is no reason monitors have to be the same size or in a grid.
   */
  setViewOffset(fullWidth, fullHeight, x, y, width, height) {
    this.aspect = fullWidth / fullHeight;
    if (this.view === null) {
      this.view = {
        enabled: true,
        fullWidth: 1,
        fullHeight: 1,
        offsetX: 0,
        offsetY: 0,
        width: 1,
        height: 1
      };
    }
    this.view.enabled = true;
    this.view.fullWidth = fullWidth;
    this.view.fullHeight = fullHeight;
    this.view.offsetX = x;
    this.view.offsetY = y;
    this.view.width = width;
    this.view.height = height;
    this.updateProjectionMatrix();
  }
  clearViewOffset() {
    if (this.view !== null) {
      this.view.enabled = false;
    }
    this.updateProjectionMatrix();
  }
  updateProjectionMatrix() {
    const near = this.near;
    let top = near * Math.tan(DEG2RAD * 0.5 * this.fov) / this.zoom;
    let height = 2 * top;
    let width = this.aspect * height;
    let left = -0.5 * width;
    const view = this.view;
    if (this.view !== null && this.view.enabled) {
      const fullWidth = view.fullWidth, fullHeight = view.fullHeight;
      left += view.offsetX * width / fullWidth;
      top -= view.offsetY * height / fullHeight;
      width *= view.width / fullWidth;
      height *= view.height / fullHeight;
    }
    const skew = this.filmOffset;
    if (skew !== 0) left += near * skew / this.getFilmWidth();
    this.projectionMatrix.makePerspective(left, left + width, top, top - height, near, this.far, this.coordinateSystem);
    this.projectionMatrixInverse.copy(this.projectionMatrix).invert();
  }
  toJSON(meta) {
    const data = super.toJSON(meta);
    data.object.fov = this.fov;
    data.object.zoom = this.zoom;
    data.object.near = this.near;
    data.object.far = this.far;
    data.object.focus = this.focus;
    data.object.aspect = this.aspect;
    if (this.view !== null) data.object.view = Object.assign({}, this.view);
    data.object.filmGauge = this.filmGauge;
    data.object.filmOffset = this.filmOffset;
    return data;
  }
};
var fov = -90;
var aspect = 1;
var CubeCamera = class extends Object3D {
  constructor(near, far, renderTarget) {
    super();
    this.type = "CubeCamera";
    this.renderTarget = renderTarget;
    this.coordinateSystem = null;
    this.activeMipmapLevel = 0;
    const cameraPX = new PerspectiveCamera(fov, aspect, near, far);
    cameraPX.layers = this.layers;
    this.add(cameraPX);
    const cameraNX = new PerspectiveCamera(fov, aspect, near, far);
    cameraNX.layers = this.layers;
    this.add(cameraNX);
    const cameraPY = new PerspectiveCamera(fov, aspect, near, far);
    cameraPY.layers = this.layers;
    this.add(cameraPY);
    const cameraNY = new PerspectiveCamera(fov, aspect, near, far);
    cameraNY.layers = this.layers;
    this.add(cameraNY);
    const cameraPZ = new PerspectiveCamera(fov, aspect, near, far);
    cameraPZ.layers = this.layers;
    this.add(cameraPZ);
    const cameraNZ = new PerspectiveCamera(fov, aspect, near, far);
    cameraNZ.layers = this.layers;
    this.add(cameraNZ);
  }
  updateCoordinateSystem() {
    const coordinateSystem = this.coordinateSystem;
    const cameras = this.children.concat();
    const [cameraPX, cameraNX, cameraPY, cameraNY, cameraPZ, cameraNZ] = cameras;
    for (const camera of cameras) this.remove(camera);
    if (coordinateSystem === WebGLCoordinateSystem) {
      cameraPX.up.set(0, 1, 0);
      cameraPX.lookAt(1, 0, 0);
      cameraNX.up.set(0, 1, 0);
      cameraNX.lookAt(-1, 0, 0);
      cameraPY.up.set(0, 0, -1);
      cameraPY.lookAt(0, 1, 0);
      cameraNY.up.set(0, 0, 1);
      cameraNY.lookAt(0, -1, 0);
      cameraPZ.up.set(0, 1, 0);
      cameraPZ.lookAt(0, 0, 1);
      cameraNZ.up.set(0, 1, 0);
      cameraNZ.lookAt(0, 0, -1);
    } else if (coordinateSystem === WebGPUCoordinateSystem) {
      cameraPX.up.set(0, -1, 0);
      cameraPX.lookAt(-1, 0, 0);
      cameraNX.up.set(0, -1, 0);
      cameraNX.lookAt(1, 0, 0);
      cameraPY.up.set(0, 0, 1);
      cameraPY.lookAt(0, 1, 0);
      cameraNY.up.set(0, 0, -1);
      cameraNY.lookAt(0, -1, 0);
      cameraPZ.up.set(0, -1, 0);
      cameraPZ.lookAt(0, 0, 1);
      cameraNZ.up.set(0, -1, 0);
      cameraNZ.lookAt(0, 0, -1);
    } else {
      throw new Error("THREE.CubeCamera.updateCoordinateSystem(): Invalid coordinate system: " + coordinateSystem);
    }
    for (const camera of cameras) {
      this.add(camera);
      camera.updateMatrixWorld();
    }
  }
  update(renderer, scene) {
    if (this.parent === null) this.updateMatrixWorld();
    const { renderTarget, activeMipmapLevel } = this;
    if (this.coordinateSystem !== renderer.coordinateSystem) {
      this.coordinateSystem = renderer.coordinateSystem;
      this.updateCoordinateSystem();
    }
    const [cameraPX, cameraNX, cameraPY, cameraNY, cameraPZ, cameraNZ] = this.children;
    const currentRenderTarget = renderer.getRenderTarget();
    const currentActiveCubeFace = renderer.getActiveCubeFace();
    const currentActiveMipmapLevel = renderer.getActiveMipmapLevel();
    const currentXrEnabled = renderer.xr.enabled;
    renderer.xr.enabled = false;
    const generateMipmaps = renderTarget.texture.generateMipmaps;
    renderTarget.texture.generateMipmaps = false;
    renderer.setRenderTarget(renderTarget, 0, activeMipmapLevel);
    renderer.render(scene, cameraPX);
    renderer.setRenderTarget(renderTarget, 1, activeMipmapLevel);
    renderer.render(scene, cameraNX);
    renderer.setRenderTarget(renderTarget, 2, activeMipmapLevel);
    renderer.render(scene, cameraPY);
    renderer.setRenderTarget(renderTarget, 3, activeMipmapLevel);
    renderer.render(scene, cameraNY);
    renderer.setRenderTarget(renderTarget, 4, activeMipmapLevel);
    renderer.render(scene, cameraPZ);
    renderTarget.texture.generateMipmaps = generateMipmaps;
    renderer.setRenderTarget(renderTarget, 5, activeMipmapLevel);
    renderer.render(scene, cameraNZ);
    renderer.setRenderTarget(currentRenderTarget, currentActiveCubeFace, currentActiveMipmapLevel);
    renderer.xr.enabled = currentXrEnabled;
    renderTarget.texture.needsPMREMUpdate = true;
  }
};
var CubeTexture = class extends Texture {
  constructor(images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, colorSpace) {
    images = images !== void 0 ? images : [];
    mapping = mapping !== void 0 ? mapping : CubeReflectionMapping;
    super(images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, colorSpace);
    this.isCubeTexture = true;
    this.flipY = false;
  }
  get images() {
    return this.image;
  }
  set images(value) {
    this.image = value;
  }
};
var WebGLCubeRenderTarget = class extends WebGLRenderTarget {
  constructor(size = 1, options = {}) {
    super(size, size, options);
    this.isWebGLCubeRenderTarget = true;
    const image = { width: size, height: size, depth: 1 };
    const images = [image, image, image, image, image, image];
    this.texture = new CubeTexture(images, options.mapping, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.colorSpace);
    this.texture.isRenderTargetTexture = true;
    this.texture.generateMipmaps = options.generateMipmaps !== void 0 ? options.generateMipmaps : false;
    this.texture.minFilter = options.minFilter !== void 0 ? options.minFilter : LinearFilter;
  }
  fromEquirectangularTexture(renderer, texture) {
    this.texture.type = texture.type;
    this.texture.colorSpace = texture.colorSpace;
    this.texture.generateMipmaps = texture.generateMipmaps;
    this.texture.minFilter = texture.minFilter;
    this.texture.magFilter = texture.magFilter;
    const shader = {
      uniforms: {
        tEquirect: { value: null }
      },
      vertexShader: (
        /* glsl */
        `

				varying vec3 vWorldDirection;

				vec3 transformDirection( in vec3 dir, in mat4 matrix ) {

					return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );

				}

				void main() {

					vWorldDirection = transformDirection( position, modelMatrix );

					#include <begin_vertex>
					#include <project_vertex>

				}
			`
      ),
      fragmentShader: (
        /* glsl */
        `

				uniform sampler2D tEquirect;

				varying vec3 vWorldDirection;

				#include <common>

				void main() {

					vec3 direction = normalize( vWorldDirection );

					vec2 sampleUV = equirectUv( direction );

					gl_FragColor = texture2D( tEquirect, sampleUV );

				}
			`
      )
    };
    const geometry = new BoxGeometry(5, 5, 5);
    const material = new ShaderMaterial({
      name: "CubemapFromEquirect",
      uniforms: cloneUniforms(shader.uniforms),
      vertexShader: shader.vertexShader,
      fragmentShader: shader.fragmentShader,
      side: BackSide,
      blending: NoBlending
    });
    material.uniforms.tEquirect.value = texture;
    const mesh = new Mesh(geometry, material);
    const currentMinFilter = texture.minFilter;
    if (texture.minFilter === LinearMipmapLinearFilter) texture.minFilter = LinearFilter;
    const camera = new CubeCamera(1, 10, this);
    camera.update(renderer, mesh);
    texture.minFilter = currentMinFilter;
    mesh.geometry.dispose();
    mesh.material.dispose();
    return this;
  }
  clear(renderer, color, depth, stencil) {
    const currentRenderTarget = renderer.getRenderTarget();
    for (let i = 0; i < 6; i++) {
      renderer.setRenderTarget(this, i);
      renderer.clear(color, depth, stencil);
    }
    renderer.setRenderTarget(currentRenderTarget);
  }
};
var Scene = class extends Object3D {
  constructor() {
    super();
    this.isScene = true;
    this.type = "Scene";
    this.background = null;
    this.environment = null;
    this.fog = null;
    this.backgroundBlurriness = 0;
    this.backgroundIntensity = 1;
    this.backgroundRotation = new Euler();
    this.environmentIntensity = 1;
    this.environmentRotation = new Euler();
    this.overrideMaterial = null;
    if (typeof __THREE_DEVTOOLS__ !== "undefined") {
      __THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe", { detail: this }));
    }
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    if (source.background !== null) this.background = source.background.clone();
    if (source.environment !== null) this.environment = source.environment.clone();
    if (source.fog !== null) this.fog = source.fog.clone();
    this.backgroundBlurriness = source.backgroundBlurriness;
    this.backgroundIntensity = source.backgroundIntensity;
    this.backgroundRotation.copy(source.backgroundRotation);
    this.environmentIntensity = source.environmentIntensity;
    this.environmentRotation.copy(source.environmentRotation);
    if (source.overrideMaterial !== null) this.overrideMaterial = source.overrideMaterial.clone();
    this.matrixAutoUpdate = source.matrixAutoUpdate;
    return this;
  }
  toJSON(meta) {
    const data = super.toJSON(meta);
    if (this.fog !== null) data.object.fog = this.fog.toJSON();
    if (this.backgroundBlurriness > 0) data.object.backgroundBlurriness = this.backgroundBlurriness;
    if (this.backgroundIntensity !== 1) data.object.backgroundIntensity = this.backgroundIntensity;
    data.object.backgroundRotation = this.backgroundRotation.toArray();
    if (this.environmentIntensity !== 1) data.object.environmentIntensity = this.environmentIntensity;
    data.object.environmentRotation = this.environmentRotation.toArray();
    return data;
  }
};
var InterleavedBuffer = class {
  constructor(array, stride) {
    this.isInterleavedBuffer = true;
    this.array = array;
    this.stride = stride;
    this.count = array !== void 0 ? array.length / stride : 0;
    this.usage = StaticDrawUsage;
    this.updateRanges = [];
    this.version = 0;
    this.uuid = generateUUID();
  }
  onUploadCallback() {
  }
  set needsUpdate(value) {
    if (value === true) this.version++;
  }
  setUsage(value) {
    this.usage = value;
    return this;
  }
  addUpdateRange(start, count) {
    this.updateRanges.push({ start, count });
  }
  clearUpdateRanges() {
    this.updateRanges.length = 0;
  }
  copy(source) {
    this.array = new source.array.constructor(source.array);
    this.count = source.count;
    this.stride = source.stride;
    this.usage = source.usage;
    return this;
  }
  copyAt(index1, attribute, index2) {
    index1 *= this.stride;
    index2 *= attribute.stride;
    for (let i = 0, l = this.stride; i < l; i++) {
      this.array[index1 + i] = attribute.array[index2 + i];
    }
    return this;
  }
  set(value, offset = 0) {
    this.array.set(value, offset);
    return this;
  }
  clone(data) {
    if (data.arrayBuffers === void 0) {
      data.arrayBuffers = {};
    }
    if (this.array.buffer._uuid === void 0) {
      this.array.buffer._uuid = generateUUID();
    }
    if (data.arrayBuffers[this.array.buffer._uuid] === void 0) {
      data.arrayBuffers[this.array.buffer._uuid] = this.array.slice(0).buffer;
    }
    const array = new this.array.constructor(data.arrayBuffers[this.array.buffer._uuid]);
    const ib = new this.constructor(array, this.stride);
    ib.setUsage(this.usage);
    return ib;
  }
  onUpload(callback) {
    this.onUploadCallback = callback;
    return this;
  }
  toJSON(data) {
    if (data.arrayBuffers === void 0) {
      data.arrayBuffers = {};
    }
    if (this.array.buffer._uuid === void 0) {
      this.array.buffer._uuid = generateUUID();
    }
    if (data.arrayBuffers[this.array.buffer._uuid] === void 0) {
      data.arrayBuffers[this.array.buffer._uuid] = Array.from(new Uint32Array(this.array.buffer));
    }
    return {
      uuid: this.uuid,
      buffer: this.array.buffer._uuid,
      type: this.array.constructor.name,
      stride: this.stride
    };
  }
};
var _vector$7 = /* @__PURE__ */ new Vector3();
var InterleavedBufferAttribute = class _InterleavedBufferAttribute {
  constructor(interleavedBuffer, itemSize, offset, normalized = false) {
    this.isInterleavedBufferAttribute = true;
    this.name = "";
    this.data = interleavedBuffer;
    this.itemSize = itemSize;
    this.offset = offset;
    this.normalized = normalized;
  }
  get count() {
    return this.data.count;
  }
  get array() {
    return this.data.array;
  }
  set needsUpdate(value) {
    this.data.needsUpdate = value;
  }
  applyMatrix4(m) {
    for (let i = 0, l = this.data.count; i < l; i++) {
      _vector$7.fromBufferAttribute(this, i);
      _vector$7.applyMatrix4(m);
      this.setXYZ(i, _vector$7.x, _vector$7.y, _vector$7.z);
    }
    return this;
  }
  applyNormalMatrix(m) {
    for (let i = 0, l = this.count; i < l; i++) {
      _vector$7.fromBufferAttribute(this, i);
      _vector$7.applyNormalMatrix(m);
      this.setXYZ(i, _vector$7.x, _vector$7.y, _vector$7.z);
    }
    return this;
  }
  transformDirection(m) {
    for (let i = 0, l = this.count; i < l; i++) {
      _vector$7.fromBufferAttribute(this, i);
      _vector$7.transformDirection(m);
      this.setXYZ(i, _vector$7.x, _vector$7.y, _vector$7.z);
    }
    return this;
  }
  getComponent(index, component) {
    let value = this.array[index * this.data.stride + this.offset + component];
    if (this.normalized) value = denormalize(value, this.array);
    return value;
  }
  setComponent(index, component, value) {
    if (this.normalized) value = normalize(value, this.array);
    this.data.array[index * this.data.stride + this.offset + component] = value;
    return this;
  }
  setX(index, x) {
    if (this.normalized) x = normalize(x, this.array);
    this.data.array[index * this.data.stride + this.offset] = x;
    return this;
  }
  setY(index, y) {
    if (this.normalized) y = normalize(y, this.array);
    this.data.array[index * this.data.stride + this.offset + 1] = y;
    return this;
  }
  setZ(index, z) {
    if (this.normalized) z = normalize(z, this.array);
    this.data.array[index * this.data.stride + this.offset + 2] = z;
    return this;
  }
  setW(index, w) {
    if (this.normalized) w = normalize(w, this.array);
    this.data.array[index * this.data.stride + this.offset + 3] = w;
    return this;
  }
  getX(index) {
    let x = this.data.array[index * this.data.stride + this.offset];
    if (this.normalized) x = denormalize(x, this.array);
    return x;
  }
  getY(index) {
    let y = this.data.array[index * this.data.stride + this.offset + 1];
    if (this.normalized) y = denormalize(y, this.array);
    return y;
  }
  getZ(index) {
    let z = this.data.array[index * this.data.stride + this.offset + 2];
    if (this.normalized) z = denormalize(z, this.array);
    return z;
  }
  getW(index) {
    let w = this.data.array[index * this.data.stride + this.offset + 3];
    if (this.normalized) w = denormalize(w, this.array);
    return w;
  }
  setXY(index, x, y) {
    index = index * this.data.stride + this.offset;
    if (this.normalized) {
      x = normalize(x, this.array);
      y = normalize(y, this.array);
    }
    this.data.array[index + 0] = x;
    this.data.array[index + 1] = y;
    return this;
  }
  setXYZ(index, x, y, z) {
    index = index * this.data.stride + this.offset;
    if (this.normalized) {
      x = normalize(x, this.array);
      y = normalize(y, this.array);
      z = normalize(z, this.array);
    }
    this.data.array[index + 0] = x;
    this.data.array[index + 1] = y;
    this.data.array[index + 2] = z;
    return this;
  }
  setXYZW(index, x, y, z, w) {
    index = index * this.data.stride + this.offset;
    if (this.normalized) {
      x = normalize(x, this.array);
      y = normalize(y, this.array);
      z = normalize(z, this.array);
      w = normalize(w, this.array);
    }
    this.data.array[index + 0] = x;
    this.data.array[index + 1] = y;
    this.data.array[index + 2] = z;
    this.data.array[index + 3] = w;
    return this;
  }
  clone(data) {
    if (data === void 0) {
      console.log("THREE.InterleavedBufferAttribute.clone(): Cloning an interleaved buffer attribute will de-interleave buffer data.");
      const array = [];
      for (let i = 0; i < this.count; i++) {
        const index = i * this.data.stride + this.offset;
        for (let j = 0; j < this.itemSize; j++) {
          array.push(this.data.array[index + j]);
        }
      }
      return new BufferAttribute(new this.array.constructor(array), this.itemSize, this.normalized);
    } else {
      if (data.interleavedBuffers === void 0) {
        data.interleavedBuffers = {};
      }
      if (data.interleavedBuffers[this.data.uuid] === void 0) {
        data.interleavedBuffers[this.data.uuid] = this.data.clone(data);
      }
      return new _InterleavedBufferAttribute(data.interleavedBuffers[this.data.uuid], this.itemSize, this.offset, this.normalized);
    }
  }
  toJSON(data) {
    if (data === void 0) {
      console.log("THREE.InterleavedBufferAttribute.toJSON(): Serializing an interleaved buffer attribute will de-interleave buffer data.");
      const array = [];
      for (let i = 0; i < this.count; i++) {
        const index = i * this.data.stride + this.offset;
        for (let j = 0; j < this.itemSize; j++) {
          array.push(this.data.array[index + j]);
        }
      }
      return {
        itemSize: this.itemSize,
        type: this.array.constructor.name,
        array,
        normalized: this.normalized
      };
    } else {
      if (data.interleavedBuffers === void 0) {
        data.interleavedBuffers = {};
      }
      if (data.interleavedBuffers[this.data.uuid] === void 0) {
        data.interleavedBuffers[this.data.uuid] = this.data.toJSON(data);
      }
      return {
        isInterleavedBufferAttribute: true,
        itemSize: this.itemSize,
        data: this.data.uuid,
        offset: this.offset,
        normalized: this.normalized
      };
    }
  }
};
var _basePosition = /* @__PURE__ */ new Vector3();
var _skinIndex = /* @__PURE__ */ new Vector4();
var _skinWeight = /* @__PURE__ */ new Vector4();
var _vector3 = /* @__PURE__ */ new Vector3();
var _matrix4 = /* @__PURE__ */ new Matrix4();
var _vertex = /* @__PURE__ */ new Vector3();
var _sphere$5 = /* @__PURE__ */ new Sphere();
var _inverseMatrix$2 = /* @__PURE__ */ new Matrix4();
var _ray$2 = /* @__PURE__ */ new Ray();
var SkinnedMesh = class extends Mesh {
  constructor(geometry, material) {
    super(geometry, material);
    this.isSkinnedMesh = true;
    this.type = "SkinnedMesh";
    this.bindMode = AttachedBindMode;
    this.bindMatrix = new Matrix4();
    this.bindMatrixInverse = new Matrix4();
    this.boundingBox = null;
    this.boundingSphere = null;
  }
  computeBoundingBox() {
    const geometry = this.geometry;
    if (this.boundingBox === null) {
      this.boundingBox = new Box3();
    }
    this.boundingBox.makeEmpty();
    const positionAttribute = geometry.getAttribute("position");
    for (let i = 0; i < positionAttribute.count; i++) {
      this.getVertexPosition(i, _vertex);
      this.boundingBox.expandByPoint(_vertex);
    }
  }
  computeBoundingSphere() {
    const geometry = this.geometry;
    if (this.boundingSphere === null) {
      this.boundingSphere = new Sphere();
    }
    this.boundingSphere.makeEmpty();
    const positionAttribute = geometry.getAttribute("position");
    for (let i = 0; i < positionAttribute.count; i++) {
      this.getVertexPosition(i, _vertex);
      this.boundingSphere.expandByPoint(_vertex);
    }
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.bindMode = source.bindMode;
    this.bindMatrix.copy(source.bindMatrix);
    this.bindMatrixInverse.copy(source.bindMatrixInverse);
    this.skeleton = source.skeleton;
    if (source.boundingBox !== null) this.boundingBox = source.boundingBox.clone();
    if (source.boundingSphere !== null) this.boundingSphere = source.boundingSphere.clone();
    return this;
  }
  raycast(raycaster, intersects) {
    const material = this.material;
    const matrixWorld = this.matrixWorld;
    if (material === void 0) return;
    if (this.boundingSphere === null) this.computeBoundingSphere();
    _sphere$5.copy(this.boundingSphere);
    _sphere$5.applyMatrix4(matrixWorld);
    if (raycaster.ray.intersectsSphere(_sphere$5) === false) return;
    _inverseMatrix$2.copy(matrixWorld).invert();
    _ray$2.copy(raycaster.ray).applyMatrix4(_inverseMatrix$2);
    if (this.boundingBox !== null) {
      if (_ray$2.intersectsBox(this.boundingBox) === false) return;
    }
    this._computeIntersections(raycaster, intersects, _ray$2);
  }
  getVertexPosition(index, target) {
    super.getVertexPosition(index, target);
    this.applyBoneTransform(index, target);
    return target;
  }
  bind(skeleton, bindMatrix) {
    this.skeleton = skeleton;
    if (bindMatrix === void 0) {
      this.updateMatrixWorld(true);
      this.skeleton.calculateInverses();
      bindMatrix = this.matrixWorld;
    }
    this.bindMatrix.copy(bindMatrix);
    this.bindMatrixInverse.copy(bindMatrix).invert();
  }
  pose() {
    this.skeleton.pose();
  }
  normalizeSkinWeights() {
    const vector = new Vector4();
    const skinWeight = this.geometry.attributes.skinWeight;
    for (let i = 0, l = skinWeight.count; i < l; i++) {
      vector.fromBufferAttribute(skinWeight, i);
      const scale = 1 / vector.manhattanLength();
      if (scale !== Infinity) {
        vector.multiplyScalar(scale);
      } else {
        vector.set(1, 0, 0, 0);
      }
      skinWeight.setXYZW(i, vector.x, vector.y, vector.z, vector.w);
    }
  }
  updateMatrixWorld(force) {
    super.updateMatrixWorld(force);
    if (this.bindMode === AttachedBindMode) {
      this.bindMatrixInverse.copy(this.matrixWorld).invert();
    } else if (this.bindMode === DetachedBindMode) {
      this.bindMatrixInverse.copy(this.bindMatrix).invert();
    } else {
      console.warn("THREE.SkinnedMesh: Unrecognized bindMode: " + this.bindMode);
    }
  }
  applyBoneTransform(index, vector) {
    const skeleton = this.skeleton;
    const geometry = this.geometry;
    _skinIndex.fromBufferAttribute(geometry.attributes.skinIndex, index);
    _skinWeight.fromBufferAttribute(geometry.attributes.skinWeight, index);
    _basePosition.copy(vector).applyMatrix4(this.bindMatrix);
    vector.set(0, 0, 0);
    for (let i = 0; i < 4; i++) {
      const weight = _skinWeight.getComponent(i);
      if (weight !== 0) {
        const boneIndex = _skinIndex.getComponent(i);
        _matrix4.multiplyMatrices(skeleton.bones[boneIndex].matrixWorld, skeleton.boneInverses[boneIndex]);
        vector.addScaledVector(_vector3.copy(_basePosition).applyMatrix4(_matrix4), weight);
      }
    }
    return vector.applyMatrix4(this.bindMatrixInverse);
  }
};
var Bone = class extends Object3D {
  constructor() {
    super();
    this.isBone = true;
    this.type = "Bone";
  }
};
var DataTexture = class extends Texture {
  constructor(data = null, width = 1, height = 1, format, type, mapping, wrapS, wrapT, magFilter = NearestFilter, minFilter = NearestFilter, anisotropy, colorSpace) {
    super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, colorSpace);
    this.isDataTexture = true;
    this.image = { data, width, height };
    this.generateMipmaps = false;
    this.flipY = false;
    this.unpackAlignment = 1;
  }
};
var _offsetMatrix = /* @__PURE__ */ new Matrix4();
var _identityMatrix = /* @__PURE__ */ new Matrix4();
var Skeleton = class _Skeleton {
  constructor(bones = [], boneInverses = []) {
    this.uuid = generateUUID();
    this.bones = bones.slice(0);
    this.boneInverses = boneInverses;
    this.boneMatrices = null;
    this.boneTexture = null;
    this.init();
  }
  init() {
    const bones = this.bones;
    const boneInverses = this.boneInverses;
    this.boneMatrices = new Float32Array(bones.length * 16);
    if (boneInverses.length === 0) {
      this.calculateInverses();
    } else {
      if (bones.length !== boneInverses.length) {
        console.warn("THREE.Skeleton: Number of inverse bone matrices does not match amount of bones.");
        this.boneInverses = [];
        for (let i = 0, il = this.bones.length; i < il; i++) {
          this.boneInverses.push(new Matrix4());
        }
      }
    }
  }
  calculateInverses() {
    this.boneInverses.length = 0;
    for (let i = 0, il = this.bones.length; i < il; i++) {
      const inverse = new Matrix4();
      if (this.bones[i]) {
        inverse.copy(this.bones[i].matrixWorld).invert();
      }
      this.boneInverses.push(inverse);
    }
  }
  pose() {
    for (let i = 0, il = this.bones.length; i < il; i++) {
      const bone = this.bones[i];
      if (bone) {
        bone.matrixWorld.copy(this.boneInverses[i]).invert();
      }
    }
    for (let i = 0, il = this.bones.length; i < il; i++) {
      const bone = this.bones[i];
      if (bone) {
        if (bone.parent && bone.parent.isBone) {
          bone.matrix.copy(bone.parent.matrixWorld).invert();
          bone.matrix.multiply(bone.matrixWorld);
        } else {
          bone.matrix.copy(bone.matrixWorld);
        }
        bone.matrix.decompose(bone.position, bone.quaternion, bone.scale);
      }
    }
  }
  update() {
    const bones = this.bones;
    const boneInverses = this.boneInverses;
    const boneMatrices = this.boneMatrices;
    const boneTexture = this.boneTexture;
    for (let i = 0, il = bones.length; i < il; i++) {
      const matrix = bones[i] ? bones[i].matrixWorld : _identityMatrix;
      _offsetMatrix.multiplyMatrices(matrix, boneInverses[i]);
      _offsetMatrix.toArray(boneMatrices, i * 16);
    }
    if (boneTexture !== null) {
      boneTexture.needsUpdate = true;
    }
  }
  clone() {
    return new _Skeleton(this.bones, this.boneInverses);
  }
  computeBoneTexture() {
    let size = Math.sqrt(this.bones.length * 4);
    size = Math.ceil(size / 4) * 4;
    size = Math.max(size, 4);
    const boneMatrices = new Float32Array(size * size * 4);
    boneMatrices.set(this.boneMatrices);
    const boneTexture = new DataTexture(boneMatrices, size, size, RGBAFormat, FloatType);
    boneTexture.needsUpdate = true;
    this.boneMatrices = boneMatrices;
    this.boneTexture = boneTexture;
    return this;
  }
  getBoneByName(name) {
    for (let i = 0, il = this.bones.length; i < il; i++) {
      const bone = this.bones[i];
      if (bone.name === name) {
        return bone;
      }
    }
    return void 0;
  }
  dispose() {
    if (this.boneTexture !== null) {
      this.boneTexture.dispose();
      this.boneTexture = null;
    }
  }
  fromJSON(json, bones) {
    this.uuid = json.uuid;
    for (let i = 0, l = json.bones.length; i < l; i++) {
      const uuid = json.bones[i];
      let bone = bones[uuid];
      if (bone === void 0) {
        console.warn("THREE.Skeleton: No bone found with UUID:", uuid);
        bone = new Bone();
      }
      this.bones.push(bone);
      this.boneInverses.push(new Matrix4().fromArray(json.boneInverses[i]));
    }
    this.init();
    return this;
  }
  toJSON() {
    const data = {
      metadata: {
        version: 4.6,
        type: "Skeleton",
        generator: "Skeleton.toJSON"
      },
      bones: [],
      boneInverses: []
    };
    data.uuid = this.uuid;
    const bones = this.bones;
    const boneInverses = this.boneInverses;
    for (let i = 0, l = bones.length; i < l; i++) {
      const bone = bones[i];
      data.bones.push(bone.uuid);
      const boneInverse = boneInverses[i];
      data.boneInverses.push(boneInverse.toArray());
    }
    return data;
  }
};
var InstancedBufferAttribute = class extends BufferAttribute {
  constructor(array, itemSize, normalized, meshPerAttribute = 1) {
    super(array, itemSize, normalized);
    this.isInstancedBufferAttribute = true;
    this.meshPerAttribute = meshPerAttribute;
  }
  copy(source) {
    super.copy(source);
    this.meshPerAttribute = source.meshPerAttribute;
    return this;
  }
  toJSON() {
    const data = super.toJSON();
    data.meshPerAttribute = this.meshPerAttribute;
    data.isInstancedBufferAttribute = true;
    return data;
  }
};
var _instanceLocalMatrix = /* @__PURE__ */ new Matrix4();
var _instanceWorldMatrix = /* @__PURE__ */ new Matrix4();
var _instanceIntersects = [];
var _box3 = /* @__PURE__ */ new Box3();
var _identity = /* @__PURE__ */ new Matrix4();
var _mesh$1 = /* @__PURE__ */ new Mesh();
var _sphere$4 = /* @__PURE__ */ new Sphere();
var InstancedMesh = class extends Mesh {
  constructor(geometry, material, count) {
    super(geometry, material);
    this.isInstancedMesh = true;
    this.instanceMatrix = new InstancedBufferAttribute(new Float32Array(count * 16), 16);
    this.instanceColor = null;
    this.morphTexture = null;
    this.count = count;
    this.boundingBox = null;
    this.boundingSphere = null;
    for (let i = 0; i < count; i++) {
      this.setMatrixAt(i, _identity);
    }
  }
  computeBoundingBox() {
    const geometry = this.geometry;
    const count = this.count;
    if (this.boundingBox === null) {
      this.boundingBox = new Box3();
    }
    if (geometry.boundingBox === null) {
      geometry.computeBoundingBox();
    }
    this.boundingBox.makeEmpty();
    for (let i = 0; i < count; i++) {
      this.getMatrixAt(i, _instanceLocalMatrix);
      _box3.copy(geometry.boundingBox).applyMatrix4(_instanceLocalMatrix);
      this.boundingBox.union(_box3);
    }
  }
  computeBoundingSphere() {
    const geometry = this.geometry;
    const count = this.count;
    if (this.boundingSphere === null) {
      this.boundingSphere = new Sphere();
    }
    if (geometry.boundingSphere === null) {
      geometry.computeBoundingSphere();
    }
    this.boundingSphere.makeEmpty();
    for (let i = 0; i < count; i++) {
      this.getMatrixAt(i, _instanceLocalMatrix);
      _sphere$4.copy(geometry.boundingSphere).applyMatrix4(_instanceLocalMatrix);
      this.boundingSphere.union(_sphere$4);
    }
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.instanceMatrix.copy(source.instanceMatrix);
    if (source.morphTexture !== null) this.morphTexture = source.morphTexture.clone();
    if (source.instanceColor !== null) this.instanceColor = source.instanceColor.clone();
    this.count = source.count;
    if (source.boundingBox !== null) this.boundingBox = source.boundingBox.clone();
    if (source.boundingSphere !== null) this.boundingSphere = source.boundingSphere.clone();
    return this;
  }
  getColorAt(index, color) {
    color.fromArray(this.instanceColor.array, index * 3);
  }
  getMatrixAt(index, matrix) {
    matrix.fromArray(this.instanceMatrix.array, index * 16);
  }
  getMorphAt(index, object) {
    const objectInfluences = object.morphTargetInfluences;
    const array = this.morphTexture.source.data.data;
    const len = objectInfluences.length + 1;
    const dataIndex = index * len + 1;
    for (let i = 0; i < objectInfluences.length; i++) {
      objectInfluences[i] = array[dataIndex + i];
    }
  }
  raycast(raycaster, intersects) {
    const matrixWorld = this.matrixWorld;
    const raycastTimes = this.count;
    _mesh$1.geometry = this.geometry;
    _mesh$1.material = this.material;
    if (_mesh$1.material === void 0) return;
    if (this.boundingSphere === null) this.computeBoundingSphere();
    _sphere$4.copy(this.boundingSphere);
    _sphere$4.applyMatrix4(matrixWorld);
    if (raycaster.ray.intersectsSphere(_sphere$4) === false) return;
    for (let instanceId = 0; instanceId < raycastTimes; instanceId++) {
      this.getMatrixAt(instanceId, _instanceLocalMatrix);
      _instanceWorldMatrix.multiplyMatrices(matrixWorld, _instanceLocalMatrix);
      _mesh$1.matrixWorld = _instanceWorldMatrix;
      _mesh$1.raycast(raycaster, _instanceIntersects);
      for (let i = 0, l = _instanceIntersects.length; i < l; i++) {
        const intersect = _instanceIntersects[i];
        intersect.instanceId = instanceId;
        intersect.object = this;
        intersects.push(intersect);
      }
      _instanceIntersects.length = 0;
    }
  }
  setColorAt(index, color) {
    if (this.instanceColor === null) {
      this.instanceColor = new InstancedBufferAttribute(new Float32Array(this.instanceMatrix.count * 3).fill(1), 3);
    }
    color.toArray(this.instanceColor.array, index * 3);
  }
  setMatrixAt(index, matrix) {
    matrix.toArray(this.instanceMatrix.array, index * 16);
  }
  setMorphAt(index, object) {
    const objectInfluences = object.morphTargetInfluences;
    const len = objectInfluences.length + 1;
    if (this.morphTexture === null) {
      this.morphTexture = new DataTexture(new Float32Array(len * this.count), len, this.count, RedFormat, FloatType);
    }
    const array = this.morphTexture.source.data.data;
    let morphInfluencesSum = 0;
    for (let i = 0; i < objectInfluences.length; i++) {
      morphInfluencesSum += objectInfluences[i];
    }
    const morphBaseInfluence = this.geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;
    const dataIndex = len * index;
    array[dataIndex] = morphBaseInfluence;
    array.set(objectInfluences, dataIndex + 1);
  }
  updateMorphTargets() {
  }
  dispose() {
    this.dispatchEvent({ type: "dispose" });
    if (this.morphTexture !== null) {
      this.morphTexture.dispose();
      this.morphTexture = null;
    }
    return this;
  }
};
var _vector1 = /* @__PURE__ */ new Vector3();
var _vector2 = /* @__PURE__ */ new Vector3();
var _normalMatrix = /* @__PURE__ */ new Matrix3();
var Plane = class {
  constructor(normal = new Vector3(1, 0, 0), constant = 0) {
    this.isPlane = true;
    this.normal = normal;
    this.constant = constant;
  }
  set(normal, constant) {
    this.normal.copy(normal);
    this.constant = constant;
    return this;
  }
  setComponents(x, y, z, w) {
    this.normal.set(x, y, z);
    this.constant = w;
    return this;
  }
  setFromNormalAndCoplanarPoint(normal, point) {
    this.normal.copy(normal);
    this.constant = -point.dot(this.normal);
    return this;
  }
  setFromCoplanarPoints(a, b, c) {
    const normal = _vector1.subVectors(c, b).cross(_vector2.subVectors(a, b)).normalize();
    this.setFromNormalAndCoplanarPoint(normal, a);
    return this;
  }
  copy(plane) {
    this.normal.copy(plane.normal);
    this.constant = plane.constant;
    return this;
  }
  normalize() {
    const inverseNormalLength = 1 / this.normal.length();
    this.normal.multiplyScalar(inverseNormalLength);
    this.constant *= inverseNormalLength;
    return this;
  }
  negate() {
    this.constant *= -1;
    this.normal.negate();
    return this;
  }
  distanceToPoint(point) {
    return this.normal.dot(point) + this.constant;
  }
  distanceToSphere(sphere) {
    return this.distanceToPoint(sphere.center) - sphere.radius;
  }
  projectPoint(point, target) {
    return target.copy(point).addScaledVector(this.normal, -this.distanceToPoint(point));
  }
  intersectLine(line, target) {
    const direction = line.delta(_vector1);
    const denominator = this.normal.dot(direction);
    if (denominator === 0) {
      if (this.distanceToPoint(line.start) === 0) {
        return target.copy(line.start);
      }
      return null;
    }
    const t = -(line.start.dot(this.normal) + this.constant) / denominator;
    if (t < 0 || t > 1) {
      return null;
    }
    return target.copy(line.start).addScaledVector(direction, t);
  }
  intersectsLine(line) {
    const startSign = this.distanceToPoint(line.start);
    const endSign = this.distanceToPoint(line.end);
    return startSign < 0 && endSign > 0 || endSign < 0 && startSign > 0;
  }
  intersectsBox(box) {
    return box.intersectsPlane(this);
  }
  intersectsSphere(sphere) {
    return sphere.intersectsPlane(this);
  }
  coplanarPoint(target) {
    return target.copy(this.normal).multiplyScalar(-this.constant);
  }
  applyMatrix4(matrix, optionalNormalMatrix) {
    const normalMatrix = optionalNormalMatrix || _normalMatrix.getNormalMatrix(matrix);
    const referencePoint = this.coplanarPoint(_vector1).applyMatrix4(matrix);
    const normal = this.normal.applyMatrix3(normalMatrix).normalize();
    this.constant = -referencePoint.dot(normal);
    return this;
  }
  translate(offset) {
    this.constant -= offset.dot(this.normal);
    return this;
  }
  equals(plane) {
    return plane.normal.equals(this.normal) && plane.constant === this.constant;
  }
  clone() {
    return new this.constructor().copy(this);
  }
};
var _sphere$3 = /* @__PURE__ */ new Sphere();
var _vector$6 = /* @__PURE__ */ new Vector3();
var Frustum = class {
  constructor(p0 = new Plane(), p1 = new Plane(), p2 = new Plane(), p3 = new Plane(), p4 = new Plane(), p5 = new Plane()) {
    this.planes = [p0, p1, p2, p3, p4, p5];
  }
  set(p0, p1, p2, p3, p4, p5) {
    const planes = this.planes;
    planes[0].copy(p0);
    planes[1].copy(p1);
    planes[2].copy(p2);
    planes[3].copy(p3);
    planes[4].copy(p4);
    planes[5].copy(p5);
    return this;
  }
  copy(frustum) {
    const planes = this.planes;
    for (let i = 0; i < 6; i++) {
      planes[i].copy(frustum.planes[i]);
    }
    return this;
  }
  setFromProjectionMatrix(m, coordinateSystem = WebGLCoordinateSystem) {
    const planes = this.planes;
    const me = m.elements;
    const me0 = me[0], me1 = me[1], me2 = me[2], me3 = me[3];
    const me4 = me[4], me5 = me[5], me6 = me[6], me7 = me[7];
    const me8 = me[8], me9 = me[9], me10 = me[10], me11 = me[11];
    const me12 = me[12], me13 = me[13], me14 = me[14], me15 = me[15];
    planes[0].setComponents(me3 - me0, me7 - me4, me11 - me8, me15 - me12).normalize();
    planes[1].setComponents(me3 + me0, me7 + me4, me11 + me8, me15 + me12).normalize();
    planes[2].setComponents(me3 + me1, me7 + me5, me11 + me9, me15 + me13).normalize();
    planes[3].setComponents(me3 - me1, me7 - me5, me11 - me9, me15 - me13).normalize();
    planes[4].setComponents(me3 - me2, me7 - me6, me11 - me10, me15 - me14).normalize();
    if (coordinateSystem === WebGLCoordinateSystem) {
      planes[5].setComponents(me3 + me2, me7 + me6, me11 + me10, me15 + me14).normalize();
    } else if (coordinateSystem === WebGPUCoordinateSystem) {
      planes[5].setComponents(me2, me6, me10, me14).normalize();
    } else {
      throw new Error("THREE.Frustum.setFromProjectionMatrix(): Invalid coordinate system: " + coordinateSystem);
    }
    return this;
  }
  intersectsObject(object) {
    if (object.boundingSphere !== void 0) {
      if (object.boundingSphere === null) object.computeBoundingSphere();
      _sphere$3.copy(object.boundingSphere).applyMatrix4(object.matrixWorld);
    } else {
      const geometry = object.geometry;
      if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
      _sphere$3.copy(geometry.boundingSphere).applyMatrix4(object.matrixWorld);
    }
    return this.intersectsSphere(_sphere$3);
  }
  intersectsSprite(sprite) {
    _sphere$3.center.set(0, 0, 0);
    _sphere$3.radius = 0.7071067811865476;
    _sphere$3.applyMatrix4(sprite.matrixWorld);
    return this.intersectsSphere(_sphere$3);
  }
  intersectsSphere(sphere) {
    const planes = this.planes;
    const center = sphere.center;
    const negRadius = -sphere.radius;
    for (let i = 0; i < 6; i++) {
      const distance = planes[i].distanceToPoint(center);
      if (distance < negRadius) {
        return false;
      }
    }
    return true;
  }
  intersectsBox(box) {
    const planes = this.planes;
    for (let i = 0; i < 6; i++) {
      const plane = planes[i];
      _vector$6.x = plane.normal.x > 0 ? box.max.x : box.min.x;
      _vector$6.y = plane.normal.y > 0 ? box.max.y : box.min.y;
      _vector$6.z = plane.normal.z > 0 ? box.max.z : box.min.z;
      if (plane.distanceToPoint(_vector$6) < 0) {
        return false;
      }
    }
    return true;
  }
  containsPoint(point) {
    const planes = this.planes;
    for (let i = 0; i < 6; i++) {
      if (planes[i].distanceToPoint(point) < 0) {
        return false;
      }
    }
    return true;
  }
  clone() {
    return new this.constructor().copy(this);
  }
};
var LineBasicMaterial = class extends Material {
  constructor(parameters) {
    super();
    this.isLineBasicMaterial = true;
    this.type = "LineBasicMaterial";
    this.color = new Color(16777215);
    this.map = null;
    this.linewidth = 1;
    this.linecap = "round";
    this.linejoin = "round";
    this.fog = true;
    this.setValues(parameters);
  }
  copy(source) {
    super.copy(source);
    this.color.copy(source.color);
    this.map = source.map;
    this.linewidth = source.linewidth;
    this.linecap = source.linecap;
    this.linejoin = source.linejoin;
    this.fog = source.fog;
    return this;
  }
};
var _vStart = /* @__PURE__ */ new Vector3();
var _vEnd = /* @__PURE__ */ new Vector3();
var _inverseMatrix$1 = /* @__PURE__ */ new Matrix4();
var _ray$1 = /* @__PURE__ */ new Ray();
var _sphere$1 = /* @__PURE__ */ new Sphere();
var _intersectPointOnRay = /* @__PURE__ */ new Vector3();
var _intersectPointOnSegment = /* @__PURE__ */ new Vector3();
var Line = class extends Object3D {
  constructor(geometry = new BufferGeometry(), material = new LineBasicMaterial()) {
    super();
    this.isLine = true;
    this.type = "Line";
    this.geometry = geometry;
    this.material = material;
    this.updateMorphTargets();
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.material = Array.isArray(source.material) ? source.material.slice() : source.material;
    this.geometry = source.geometry;
    return this;
  }
  computeLineDistances() {
    const geometry = this.geometry;
    if (geometry.index === null) {
      const positionAttribute = geometry.attributes.position;
      const lineDistances = [0];
      for (let i = 1, l = positionAttribute.count; i < l; i++) {
        _vStart.fromBufferAttribute(positionAttribute, i - 1);
        _vEnd.fromBufferAttribute(positionAttribute, i);
        lineDistances[i] = lineDistances[i - 1];
        lineDistances[i] += _vStart.distanceTo(_vEnd);
      }
      geometry.setAttribute("lineDistance", new Float32BufferAttribute(lineDistances, 1));
    } else {
      console.warn("THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");
    }
    return this;
  }
  raycast(raycaster, intersects) {
    const geometry = this.geometry;
    const matrixWorld = this.matrixWorld;
    const threshold = raycaster.params.Line.threshold;
    const drawRange = geometry.drawRange;
    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
    _sphere$1.copy(geometry.boundingSphere);
    _sphere$1.applyMatrix4(matrixWorld);
    _sphere$1.radius += threshold;
    if (raycaster.ray.intersectsSphere(_sphere$1) === false) return;
    _inverseMatrix$1.copy(matrixWorld).invert();
    _ray$1.copy(raycaster.ray).applyMatrix4(_inverseMatrix$1);
    const localThreshold = threshold / ((this.scale.x + this.scale.y + this.scale.z) / 3);
    const localThresholdSq = localThreshold * localThreshold;
    const step = this.isLineSegments ? 2 : 1;
    const index = geometry.index;
    const attributes = geometry.attributes;
    const positionAttribute = attributes.position;
    if (index !== null) {
      const start = Math.max(0, drawRange.start);
      const end = Math.min(index.count, drawRange.start + drawRange.count);
      for (let i = start, l = end - 1; i < l; i += step) {
        const a = index.getX(i);
        const b = index.getX(i + 1);
        const intersect = checkIntersection(this, raycaster, _ray$1, localThresholdSq, a, b);
        if (intersect) {
          intersects.push(intersect);
        }
      }
      if (this.isLineLoop) {
        const a = index.getX(end - 1);
        const b = index.getX(start);
        const intersect = checkIntersection(this, raycaster, _ray$1, localThresholdSq, a, b);
        if (intersect) {
          intersects.push(intersect);
        }
      }
    } else {
      const start = Math.max(0, drawRange.start);
      const end = Math.min(positionAttribute.count, drawRange.start + drawRange.count);
      for (let i = start, l = end - 1; i < l; i += step) {
        const intersect = checkIntersection(this, raycaster, _ray$1, localThresholdSq, i, i + 1);
        if (intersect) {
          intersects.push(intersect);
        }
      }
      if (this.isLineLoop) {
        const intersect = checkIntersection(this, raycaster, _ray$1, localThresholdSq, end - 1, start);
        if (intersect) {
          intersects.push(intersect);
        }
      }
    }
  }
  updateMorphTargets() {
    const geometry = this.geometry;
    const morphAttributes = geometry.morphAttributes;
    const keys = Object.keys(morphAttributes);
    if (keys.length > 0) {
      const morphAttribute = morphAttributes[keys[0]];
      if (morphAttribute !== void 0) {
        this.morphTargetInfluences = [];
        this.morphTargetDictionary = {};
        for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
          const name = morphAttribute[m].name || String(m);
          this.morphTargetInfluences.push(0);
          this.morphTargetDictionary[name] = m;
        }
      }
    }
  }
};
function checkIntersection(object, raycaster, ray, thresholdSq, a, b) {
  const positionAttribute = object.geometry.attributes.position;
  _vStart.fromBufferAttribute(positionAttribute, a);
  _vEnd.fromBufferAttribute(positionAttribute, b);
  const distSq = ray.distanceSqToSegment(_vStart, _vEnd, _intersectPointOnRay, _intersectPointOnSegment);
  if (distSq > thresholdSq) return;
  _intersectPointOnRay.applyMatrix4(object.matrixWorld);
  const distance = raycaster.ray.origin.distanceTo(_intersectPointOnRay);
  if (distance < raycaster.near || distance > raycaster.far) return;
  return {
    distance,
    // What do we want? intersection point on the ray or on the segment??
    // point: raycaster.ray.at( distance ),
    point: _intersectPointOnSegment.clone().applyMatrix4(object.matrixWorld),
    index: a,
    face: null,
    faceIndex: null,
    barycoord: null,
    object
  };
}
var _start = /* @__PURE__ */ new Vector3();
var _end = /* @__PURE__ */ new Vector3();
var LineSegments = class extends Line {
  constructor(geometry, material) {
    super(geometry, material);
    this.isLineSegments = true;
    this.type = "LineSegments";
  }
  computeLineDistances() {
    const geometry = this.geometry;
    if (geometry.index === null) {
      const positionAttribute = geometry.attributes.position;
      const lineDistances = [];
      for (let i = 0, l = positionAttribute.count; i < l; i += 2) {
        _start.fromBufferAttribute(positionAttribute, i);
        _end.fromBufferAttribute(positionAttribute, i + 1);
        lineDistances[i] = i === 0 ? 0 : lineDistances[i - 1];
        lineDistances[i + 1] = lineDistances[i] + _start.distanceTo(_end);
      }
      geometry.setAttribute("lineDistance", new Float32BufferAttribute(lineDistances, 1));
    } else {
      console.warn("THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.");
    }
    return this;
  }
};
var LineLoop = class extends Line {
  constructor(geometry, material) {
    super(geometry, material);
    this.isLineLoop = true;
    this.type = "LineLoop";
  }
};
var PointsMaterial = class extends Material {
  constructor(parameters) {
    super();
    this.isPointsMaterial = true;
    this.type = "PointsMaterial";
    this.color = new Color(16777215);
    this.map = null;
    this.alphaMap = null;
    this.size = 1;
    this.sizeAttenuation = true;
    this.fog = true;
    this.setValues(parameters);
  }
  copy(source) {
    super.copy(source);
    this.color.copy(source.color);
    this.map = source.map;
    this.alphaMap = source.alphaMap;
    this.size = source.size;
    this.sizeAttenuation = source.sizeAttenuation;
    this.fog = source.fog;
    return this;
  }
};
var _inverseMatrix = /* @__PURE__ */ new Matrix4();
var _ray = /* @__PURE__ */ new Ray();
var _sphere = /* @__PURE__ */ new Sphere();
var _position$2 = /* @__PURE__ */ new Vector3();
var Points = class extends Object3D {
  constructor(geometry = new BufferGeometry(), material = new PointsMaterial()) {
    super();
    this.isPoints = true;
    this.type = "Points";
    this.geometry = geometry;
    this.material = material;
    this.updateMorphTargets();
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.material = Array.isArray(source.material) ? source.material.slice() : source.material;
    this.geometry = source.geometry;
    return this;
  }
  raycast(raycaster, intersects) {
    const geometry = this.geometry;
    const matrixWorld = this.matrixWorld;
    const threshold = raycaster.params.Points.threshold;
    const drawRange = geometry.drawRange;
    if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
    _sphere.copy(geometry.boundingSphere);
    _sphere.applyMatrix4(matrixWorld);
    _sphere.radius += threshold;
    if (raycaster.ray.intersectsSphere(_sphere) === false) return;
    _inverseMatrix.copy(matrixWorld).invert();
    _ray.copy(raycaster.ray).applyMatrix4(_inverseMatrix);
    const localThreshold = threshold / ((this.scale.x + this.scale.y + this.scale.z) / 3);
    const localThresholdSq = localThreshold * localThreshold;
    const index = geometry.index;
    const attributes = geometry.attributes;
    const positionAttribute = attributes.position;
    if (index !== null) {
      const start = Math.max(0, drawRange.start);
      const end = Math.min(index.count, drawRange.start + drawRange.count);
      for (let i = start, il = end; i < il; i++) {
        const a = index.getX(i);
        _position$2.fromBufferAttribute(positionAttribute, a);
        testPoint(_position$2, a, localThresholdSq, matrixWorld, raycaster, intersects, this);
      }
    } else {
      const start = Math.max(0, drawRange.start);
      const end = Math.min(positionAttribute.count, drawRange.start + drawRange.count);
      for (let i = start, l = end; i < l; i++) {
        _position$2.fromBufferAttribute(positionAttribute, i);
        testPoint(_position$2, i, localThresholdSq, matrixWorld, raycaster, intersects, this);
      }
    }
  }
  updateMorphTargets() {
    const geometry = this.geometry;
    const morphAttributes = geometry.morphAttributes;
    const keys = Object.keys(morphAttributes);
    if (keys.length > 0) {
      const morphAttribute = morphAttributes[keys[0]];
      if (morphAttribute !== void 0) {
        this.morphTargetInfluences = [];
        this.morphTargetDictionary = {};
        for (let m = 0, ml = morphAttribute.length; m < ml; m++) {
          const name = morphAttribute[m].name || String(m);
          this.morphTargetInfluences.push(0);
          this.morphTargetDictionary[name] = m;
        }
      }
    }
  }
};
function testPoint(point, index, localThresholdSq, matrixWorld, raycaster, intersects, object) {
  const rayPointDistanceSq = _ray.distanceSqToPoint(point);
  if (rayPointDistanceSq < localThresholdSq) {
    const intersectPoint = new Vector3();
    _ray.closestPointToPoint(point, intersectPoint);
    intersectPoint.applyMatrix4(matrixWorld);
    const distance = raycaster.ray.origin.distanceTo(intersectPoint);
    if (distance < raycaster.near || distance > raycaster.far) return;
    intersects.push({
      distance,
      distanceToRay: Math.sqrt(rayPointDistanceSq),
      point: intersectPoint,
      index,
      face: null,
      faceIndex: null,
      barycoord: null,
      object
    });
  }
}
var Group = class extends Object3D {
  constructor() {
    super();
    this.isGroup = true;
    this.type = "Group";
  }
};
var DepthTexture = class extends Texture {
  constructor(width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format = DepthFormat) {
    if (format !== DepthFormat && format !== DepthStencilFormat) {
      throw new Error("DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat");
    }
    if (type === void 0 && format === DepthFormat) type = UnsignedIntType;
    if (type === void 0 && format === DepthStencilFormat) type = UnsignedInt248Type;
    super(null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy);
    this.isDepthTexture = true;
    this.image = { width, height };
    this.magFilter = magFilter !== void 0 ? magFilter : NearestFilter;
    this.minFilter = minFilter !== void 0 ? minFilter : NearestFilter;
    this.flipY = false;
    this.generateMipmaps = false;
    this.compareFunction = null;
  }
  copy(source) {
    super.copy(source);
    this.compareFunction = source.compareFunction;
    return this;
  }
  toJSON(meta) {
    const data = super.toJSON(meta);
    if (this.compareFunction !== null) data.compareFunction = this.compareFunction;
    return data;
  }
};
var PlaneGeometry = class _PlaneGeometry extends BufferGeometry {
  constructor(width = 1, height = 1, widthSegments = 1, heightSegments = 1) {
    super();
    this.type = "PlaneGeometry";
    this.parameters = {
      width,
      height,
      widthSegments,
      heightSegments
    };
    const width_half = width / 2;
    const height_half = height / 2;
    const gridX = Math.floor(widthSegments);
    const gridY = Math.floor(heightSegments);
    const gridX1 = gridX + 1;
    const gridY1 = gridY + 1;
    const segment_width = width / gridX;
    const segment_height = height / gridY;
    const indices = [];
    const vertices = [];
    const normals = [];
    const uvs = [];
    for (let iy = 0; iy < gridY1; iy++) {
      const y = iy * segment_height - height_half;
      for (let ix = 0; ix < gridX1; ix++) {
        const x = ix * segment_width - width_half;
        vertices.push(x, -y, 0);
        normals.push(0, 0, 1);
        uvs.push(ix / gridX);
        uvs.push(1 - iy / gridY);
      }
    }
    for (let iy = 0; iy < gridY; iy++) {
      for (let ix = 0; ix < gridX; ix++) {
        const a = ix + gridX1 * iy;
        const b = ix + gridX1 * (iy + 1);
        const c = ix + 1 + gridX1 * (iy + 1);
        const d = ix + 1 + gridX1 * iy;
        indices.push(a, b, d);
        indices.push(b, c, d);
      }
    }
    this.setIndex(indices);
    this.setAttribute("position", new Float32BufferAttribute(vertices, 3));
    this.setAttribute("normal", new Float32BufferAttribute(normals, 3));
    this.setAttribute("uv", new Float32BufferAttribute(uvs, 2));
  }
  copy(source) {
    super.copy(source);
    this.parameters = Object.assign({}, source.parameters);
    return this;
  }
  static fromJSON(data) {
    return new _PlaneGeometry(data.width, data.height, data.widthSegments, data.heightSegments);
  }
};
var MeshStandardMaterial = class extends Material {
  constructor(parameters) {
    super();
    this.isMeshStandardMaterial = true;
    this.type = "MeshStandardMaterial";
    this.defines = { "STANDARD": "" };
    this.color = new Color(16777215);
    this.roughness = 1;
    this.metalness = 0;
    this.map = null;
    this.lightMap = null;
    this.lightMapIntensity = 1;
    this.aoMap = null;
    this.aoMapIntensity = 1;
    this.emissive = new Color(0);
    this.emissiveIntensity = 1;
    this.emissiveMap = null;
    this.bumpMap = null;
    this.bumpScale = 1;
    this.normalMap = null;
    this.normalMapType = TangentSpaceNormalMap;
    this.normalScale = new Vector2(1, 1);
    this.displacementMap = null;
    this.displacementScale = 1;
    this.displacementBias = 0;
    this.roughnessMap = null;
    this.metalnessMap = null;
    this.alphaMap = null;
    this.envMap = null;
    this.envMapRotation = new Euler();
    this.envMapIntensity = 1;
    this.wireframe = false;
    this.wireframeLinewidth = 1;
    this.wireframeLinecap = "round";
    this.wireframeLinejoin = "round";
    this.flatShading = false;
    this.fog = true;
    this.setValues(parameters);
  }
  copy(source) {
    super.copy(source);
    this.defines = { "STANDARD": "" };
    this.color.copy(source.color);
    this.roughness = source.roughness;
    this.metalness = source.metalness;
    this.map = source.map;
    this.lightMap = source.lightMap;
    this.lightMapIntensity = source.lightMapIntensity;
    this.aoMap = source.aoMap;
    this.aoMapIntensity = source.aoMapIntensity;
    this.emissive.copy(source.emissive);
    this.emissiveMap = source.emissiveMap;
    this.emissiveIntensity = source.emissiveIntensity;
    this.bumpMap = source.bumpMap;
    this.bumpScale = source.bumpScale;
    this.normalMap = source.normalMap;
    this.normalMapType = source.normalMapType;
    this.normalScale.copy(source.normalScale);
    this.displacementMap = source.displacementMap;
    this.displacementScale = source.displacementScale;
    this.displacementBias = source.displacementBias;
    this.roughnessMap = source.roughnessMap;
    this.metalnessMap = source.metalnessMap;
    this.alphaMap = source.alphaMap;
    this.envMap = source.envMap;
    this.envMapRotation.copy(source.envMapRotation);
    this.envMapIntensity = source.envMapIntensity;
    this.wireframe = source.wireframe;
    this.wireframeLinewidth = source.wireframeLinewidth;
    this.wireframeLinecap = source.wireframeLinecap;
    this.wireframeLinejoin = source.wireframeLinejoin;
    this.flatShading = source.flatShading;
    this.fog = source.fog;
    return this;
  }
};
var MeshPhysicalMaterial = class extends MeshStandardMaterial {
  constructor(parameters) {
    super();
    this.isMeshPhysicalMaterial = true;
    this.defines = {
      "STANDARD": "",
      "PHYSICAL": ""
    };
    this.type = "MeshPhysicalMaterial";
    this.anisotropyRotation = 0;
    this.anisotropyMap = null;
    this.clearcoatMap = null;
    this.clearcoatRoughness = 0;
    this.clearcoatRoughnessMap = null;
    this.clearcoatNormalScale = new Vector2(1, 1);
    this.clearcoatNormalMap = null;
    this.ior = 1.5;
    Object.defineProperty(this, "reflectivity", {
      get: function() {
        return clamp(2.5 * (this.ior - 1) / (this.ior + 1), 0, 1);
      },
      set: function(reflectivity) {
        this.ior = (1 + 0.4 * reflectivity) / (1 - 0.4 * reflectivity);
      }
    });
    this.iridescenceMap = null;
    this.iridescenceIOR = 1.3;
    this.iridescenceThicknessRange = [100, 400];
    this.iridescenceThicknessMap = null;
    this.sheenColor = new Color(0);
    this.sheenColorMap = null;
    this.sheenRoughness = 1;
    this.sheenRoughnessMap = null;
    this.transmissionMap = null;
    this.thickness = 0;
    this.thicknessMap = null;
    this.attenuationDistance = Infinity;
    this.attenuationColor = new Color(1, 1, 1);
    this.specularIntensity = 1;
    this.specularIntensityMap = null;
    this.specularColor = new Color(1, 1, 1);
    this.specularColorMap = null;
    this._anisotropy = 0;
    this._clearcoat = 0;
    this._dispersion = 0;
    this._iridescence = 0;
    this._sheen = 0;
    this._transmission = 0;
    this.setValues(parameters);
  }
  get anisotropy() {
    return this._anisotropy;
  }
  set anisotropy(value) {
    if (this._anisotropy > 0 !== value > 0) {
      this.version++;
    }
    this._anisotropy = value;
  }
  get clearcoat() {
    return this._clearcoat;
  }
  set clearcoat(value) {
    if (this._clearcoat > 0 !== value > 0) {
      this.version++;
    }
    this._clearcoat = value;
  }
  get iridescence() {
    return this._iridescence;
  }
  set iridescence(value) {
    if (this._iridescence > 0 !== value > 0) {
      this.version++;
    }
    this._iridescence = value;
  }
  get dispersion() {
    return this._dispersion;
  }
  set dispersion(value) {
    if (this._dispersion > 0 !== value > 0) {
      this.version++;
    }
    this._dispersion = value;
  }
  get sheen() {
    return this._sheen;
  }
  set sheen(value) {
    if (this._sheen > 0 !== value > 0) {
      this.version++;
    }
    this._sheen = value;
  }
  get transmission() {
    return this._transmission;
  }
  set transmission(value) {
    if (this._transmission > 0 !== value > 0) {
      this.version++;
    }
    this._transmission = value;
  }
  copy(source) {
    super.copy(source);
    this.defines = {
      "STANDARD": "",
      "PHYSICAL": ""
    };
    this.anisotropy = source.anisotropy;
    this.anisotropyRotation = source.anisotropyRotation;
    this.anisotropyMap = source.anisotropyMap;
    this.clearcoat = source.clearcoat;
    this.clearcoatMap = source.clearcoatMap;
    this.clearcoatRoughness = source.clearcoatRoughness;
    this.clearcoatRoughnessMap = source.clearcoatRoughnessMap;
    this.clearcoatNormalMap = source.clearcoatNormalMap;
    this.clearcoatNormalScale.copy(source.clearcoatNormalScale);
    this.dispersion = source.dispersion;
    this.ior = source.ior;
    this.iridescence = source.iridescence;
    this.iridescenceMap = source.iridescenceMap;
    this.iridescenceIOR = source.iridescenceIOR;
    this.iridescenceThicknessRange = [...source.iridescenceThicknessRange];
    this.iridescenceThicknessMap = source.iridescenceThicknessMap;
    this.sheen = source.sheen;
    this.sheenColor.copy(source.sheenColor);
    this.sheenColorMap = source.sheenColorMap;
    this.sheenRoughness = source.sheenRoughness;
    this.sheenRoughnessMap = source.sheenRoughnessMap;
    this.transmission = source.transmission;
    this.transmissionMap = source.transmissionMap;
    this.thickness = source.thickness;
    this.thicknessMap = source.thicknessMap;
    this.attenuationDistance = source.attenuationDistance;
    this.attenuationColor.copy(source.attenuationColor);
    this.specularIntensity = source.specularIntensity;
    this.specularIntensityMap = source.specularIntensityMap;
    this.specularColor.copy(source.specularColor);
    this.specularColorMap = source.specularColorMap;
    return this;
  }
};
var MeshDepthMaterial = class extends Material {
  constructor(parameters) {
    super();
    this.isMeshDepthMaterial = true;
    this.type = "MeshDepthMaterial";
    this.depthPacking = BasicDepthPacking;
    this.map = null;
    this.alphaMap = null;
    this.displacementMap = null;
    this.displacementScale = 1;
    this.displacementBias = 0;
    this.wireframe = false;
    this.wireframeLinewidth = 1;
    this.setValues(parameters);
  }
  copy(source) {
    super.copy(source);
    this.depthPacking = source.depthPacking;
    this.map = source.map;
    this.alphaMap = source.alphaMap;
    this.displacementMap = source.displacementMap;
    this.displacementScale = source.displacementScale;
    this.displacementBias = source.displacementBias;
    this.wireframe = source.wireframe;
    this.wireframeLinewidth = source.wireframeLinewidth;
    return this;
  }
};
var MeshDistanceMaterial = class extends Material {
  constructor(parameters) {
    super();
    this.isMeshDistanceMaterial = true;
    this.type = "MeshDistanceMaterial";
    this.map = null;
    this.alphaMap = null;
    this.displacementMap = null;
    this.displacementScale = 1;
    this.displacementBias = 0;
    this.setValues(parameters);
  }
  copy(source) {
    super.copy(source);
    this.map = source.map;
    this.alphaMap = source.alphaMap;
    this.displacementMap = source.displacementMap;
    this.displacementScale = source.displacementScale;
    this.displacementBias = source.displacementBias;
    return this;
  }
};
function convertArray(array, type, forceClone) {
  if (!array || // let 'undefined' and 'null' pass
  !forceClone && array.constructor === type) return array;
  if (typeof type.BYTES_PER_ELEMENT === "number") {
    return new type(array);
  }
  return Array.prototype.slice.call(array);
}
function isTypedArray(object) {
  return ArrayBuffer.isView(object) && !(object instanceof DataView);
}
function getKeyframeOrder(times) {
  function compareTime(i, j) {
    return times[i] - times[j];
  }
  const n = times.length;
  const result = new Array(n);
  for (let i = 0; i !== n; ++i) result[i] = i;
  result.sort(compareTime);
  return result;
}
function sortedArray(values, stride, order) {
  const nValues = values.length;
  const result = new values.constructor(nValues);
  for (let i = 0, dstOffset = 0; dstOffset !== nValues; ++i) {
    const srcOffset = order[i] * stride;
    for (let j = 0; j !== stride; ++j) {
      result[dstOffset++] = values[srcOffset + j];
    }
  }
  return result;
}
function flattenJSON(jsonKeys, times, values, valuePropertyName) {
  let i = 1, key = jsonKeys[0];
  while (key !== void 0 && key[valuePropertyName] === void 0) {
    key = jsonKeys[i++];
  }
  if (key === void 0) return;
  let value = key[valuePropertyName];
  if (value === void 0) return;
  if (Array.isArray(value)) {
    do {
      value = key[valuePropertyName];
      if (value !== void 0) {
        times.push(key.time);
        values.push.apply(values, value);
      }
      key = jsonKeys[i++];
    } while (key !== void 0);
  } else if (value.toArray !== void 0) {
    do {
      value = key[valuePropertyName];
      if (value !== void 0) {
        times.push(key.time);
        value.toArray(values, values.length);
      }
      key = jsonKeys[i++];
    } while (key !== void 0);
  } else {
    do {
      value = key[valuePropertyName];
      if (value !== void 0) {
        times.push(key.time);
        values.push(value);
      }
      key = jsonKeys[i++];
    } while (key !== void 0);
  }
}
var Interpolant = class {
  constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
    this.parameterPositions = parameterPositions;
    this._cachedIndex = 0;
    this.resultBuffer = resultBuffer !== void 0 ? resultBuffer : new sampleValues.constructor(sampleSize);
    this.sampleValues = sampleValues;
    this.valueSize = sampleSize;
    this.settings = null;
    this.DefaultSettings_ = {};
  }
  evaluate(t) {
    const pp = this.parameterPositions;
    let i1 = this._cachedIndex, t1 = pp[i1], t0 = pp[i1 - 1];
    validate_interval: {
      seek: {
        let right;
        linear_scan: {
          forward_scan: if (!(t < t1)) {
            for (let giveUpAt = i1 + 2; ; ) {
              if (t1 === void 0) {
                if (t < t0) break forward_scan;
                i1 = pp.length;
                this._cachedIndex = i1;
                return this.copySampleValue_(i1 - 1);
              }
              if (i1 === giveUpAt) break;
              t0 = t1;
              t1 = pp[++i1];
              if (t < t1) {
                break seek;
              }
            }
            right = pp.length;
            break linear_scan;
          }
          if (!(t >= t0)) {
            const t1global = pp[1];
            if (t < t1global) {
              i1 = 2;
              t0 = t1global;
            }
            for (let giveUpAt = i1 - 2; ; ) {
              if (t0 === void 0) {
                this._cachedIndex = 0;
                return this.copySampleValue_(0);
              }
              if (i1 === giveUpAt) break;
              t1 = t0;
              t0 = pp[--i1 - 1];
              if (t >= t0) {
                break seek;
              }
            }
            right = i1;
            i1 = 0;
            break linear_scan;
          }
          break validate_interval;
        }
        while (i1 < right) {
          const mid = i1 + right >>> 1;
          if (t < pp[mid]) {
            right = mid;
          } else {
            i1 = mid + 1;
          }
        }
        t1 = pp[i1];
        t0 = pp[i1 - 1];
        if (t0 === void 0) {
          this._cachedIndex = 0;
          return this.copySampleValue_(0);
        }
        if (t1 === void 0) {
          i1 = pp.length;
          this._cachedIndex = i1;
          return this.copySampleValue_(i1 - 1);
        }
      }
      this._cachedIndex = i1;
      this.intervalChanged_(i1, t0, t1);
    }
    return this.interpolate_(i1, t0, t, t1);
  }
  getSettings_() {
    return this.settings || this.DefaultSettings_;
  }
  copySampleValue_(index) {
    const result = this.resultBuffer, values = this.sampleValues, stride = this.valueSize, offset = index * stride;
    for (let i = 0; i !== stride; ++i) {
      result[i] = values[offset + i];
    }
    return result;
  }
  // Template methods for derived classes:
  interpolate_() {
    throw new Error("call to abstract method");
  }
  intervalChanged_() {
  }
};
var CubicInterpolant = class extends Interpolant {
  constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
    super(parameterPositions, sampleValues, sampleSize, resultBuffer);
    this._weightPrev = -0;
    this._offsetPrev = -0;
    this._weightNext = -0;
    this._offsetNext = -0;
    this.DefaultSettings_ = {
      endingStart: ZeroCurvatureEnding,
      endingEnd: ZeroCurvatureEnding
    };
  }
  intervalChanged_(i1, t0, t1) {
    const pp = this.parameterPositions;
    let iPrev = i1 - 2, iNext = i1 + 1, tPrev = pp[iPrev], tNext = pp[iNext];
    if (tPrev === void 0) {
      switch (this.getSettings_().endingStart) {
        case ZeroSlopeEnding:
          iPrev = i1;
          tPrev = 2 * t0 - t1;
          break;
        case WrapAroundEnding:
          iPrev = pp.length - 2;
          tPrev = t0 + pp[iPrev] - pp[iPrev + 1];
          break;
        default:
          iPrev = i1;
          tPrev = t1;
      }
    }
    if (tNext === void 0) {
      switch (this.getSettings_().endingEnd) {
        case ZeroSlopeEnding:
          iNext = i1;
          tNext = 2 * t1 - t0;
          break;
        case WrapAroundEnding:
          iNext = 1;
          tNext = t1 + pp[1] - pp[0];
          break;
        default:
          iNext = i1 - 1;
          tNext = t0;
      }
    }
    const halfDt = (t1 - t0) * 0.5, stride = this.valueSize;
    this._weightPrev = halfDt / (t0 - tPrev);
    this._weightNext = halfDt / (tNext - t1);
    this._offsetPrev = iPrev * stride;
    this._offsetNext = iNext * stride;
  }
  interpolate_(i1, t0, t, t1) {
    const result = this.resultBuffer, values = this.sampleValues, stride = this.valueSize, o1 = i1 * stride, o0 = o1 - stride, oP = this._offsetPrev, oN = this._offsetNext, wP = this._weightPrev, wN = this._weightNext, p = (t - t0) / (t1 - t0), pp = p * p, ppp = pp * p;
    const sP = -wP * ppp + 2 * wP * pp - wP * p;
    const s0 = (1 + wP) * ppp + (-1.5 - 2 * wP) * pp + (-0.5 + wP) * p + 1;
    const s1 = (-1 - wN) * ppp + (1.5 + wN) * pp + 0.5 * p;
    const sN = wN * ppp - wN * pp;
    for (let i = 0; i !== stride; ++i) {
      result[i] = sP * values[oP + i] + s0 * values[o0 + i] + s1 * values[o1 + i] + sN * values[oN + i];
    }
    return result;
  }
};
var LinearInterpolant = class extends Interpolant {
  constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
    super(parameterPositions, sampleValues, sampleSize, resultBuffer);
  }
  interpolate_(i1, t0, t, t1) {
    const result = this.resultBuffer, values = this.sampleValues, stride = this.valueSize, offset1 = i1 * stride, offset0 = offset1 - stride, weight1 = (t - t0) / (t1 - t0), weight0 = 1 - weight1;
    for (let i = 0; i !== stride; ++i) {
      result[i] = values[offset0 + i] * weight0 + values[offset1 + i] * weight1;
    }
    return result;
  }
};
var DiscreteInterpolant = class extends Interpolant {
  constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
    super(parameterPositions, sampleValues, sampleSize, resultBuffer);
  }
  interpolate_(i1) {
    return this.copySampleValue_(i1 - 1);
  }
};
var KeyframeTrack = class {
  constructor(name, times, values, interpolation) {
    if (name === void 0) throw new Error("THREE.KeyframeTrack: track name is undefined");
    if (times === void 0 || times.length === 0) throw new Error("THREE.KeyframeTrack: no keyframes in track named " + name);
    this.name = name;
    this.times = convertArray(times, this.TimeBufferType);
    this.values = convertArray(values, this.ValueBufferType);
    this.setInterpolation(interpolation || this.DefaultInterpolation);
  }
  // Serialization (in static context, because of constructor invocation
  // and automatic invocation of .toJSON):
  static toJSON(track) {
    const trackType = track.constructor;
    let json;
    if (trackType.toJSON !== this.toJSON) {
      json = trackType.toJSON(track);
    } else {
      json = {
        "name": track.name,
        "times": convertArray(track.times, Array),
        "values": convertArray(track.values, Array)
      };
      const interpolation = track.getInterpolation();
      if (interpolation !== track.DefaultInterpolation) {
        json.interpolation = interpolation;
      }
    }
    json.type = track.ValueTypeName;
    return json;
  }
  InterpolantFactoryMethodDiscrete(result) {
    return new DiscreteInterpolant(this.times, this.values, this.getValueSize(), result);
  }
  InterpolantFactoryMethodLinear(result) {
    return new LinearInterpolant(this.times, this.values, this.getValueSize(), result);
  }
  InterpolantFactoryMethodSmooth(result) {
    return new CubicInterpolant(this.times, this.values, this.getValueSize(), result);
  }
  setInterpolation(interpolation) {
    let factoryMethod;
    switch (interpolation) {
      case InterpolateDiscrete:
        factoryMethod = this.InterpolantFactoryMethodDiscrete;
        break;
      case InterpolateLinear:
        factoryMethod = this.InterpolantFactoryMethodLinear;
        break;
      case InterpolateSmooth:
        factoryMethod = this.InterpolantFactoryMethodSmooth;
        break;
    }
    if (factoryMethod === void 0) {
      const message = "unsupported interpolation for " + this.ValueTypeName + " keyframe track named " + this.name;
      if (this.createInterpolant === void 0) {
        if (interpolation !== this.DefaultInterpolation) {
          this.setInterpolation(this.DefaultInterpolation);
        } else {
          throw new Error(message);
        }
      }
      console.warn("THREE.KeyframeTrack:", message);
      return this;
    }
    this.createInterpolant = factoryMethod;
    return this;
  }
  getInterpolation() {
    switch (this.createInterpolant) {
      case this.InterpolantFactoryMethodDiscrete:
        return InterpolateDiscrete;
      case this.InterpolantFactoryMethodLinear:
        return InterpolateLinear;
      case this.InterpolantFactoryMethodSmooth:
        return InterpolateSmooth;
    }
  }
  getValueSize() {
    return this.values.length / this.times.length;
  }
  // move all keyframes either forwards or backwards in time
  shift(timeOffset) {
    if (timeOffset !== 0) {
      const times = this.times;
      for (let i = 0, n = times.length; i !== n; ++i) {
        times[i] += timeOffset;
      }
    }
    return this;
  }
  // scale all keyframe times by a factor (useful for frame <-> seconds conversions)
  scale(timeScale) {
    if (timeScale !== 1) {
      const times = this.times;
      for (let i = 0, n = times.length; i !== n; ++i) {
        times[i] *= timeScale;
      }
    }
    return this;
  }
  // removes keyframes before and after animation without changing any values within the range [startTime, endTime].
  // IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
  trim(startTime, endTime) {
    const times = this.times, nKeys = times.length;
    let from = 0, to = nKeys - 1;
    while (from !== nKeys && times[from] < startTime) {
      ++from;
    }
    while (to !== -1 && times[to] > endTime) {
      --to;
    }
    ++to;
    if (from !== 0 || to !== nKeys) {
      if (from >= to) {
        to = Math.max(to, 1);
        from = to - 1;
      }
      const stride = this.getValueSize();
      this.times = times.slice(from, to);
      this.values = this.values.slice(from * stride, to * stride);
    }
    return this;
  }
  // ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
  validate() {
    let valid = true;
    const valueSize = this.getValueSize();
    if (valueSize - Math.floor(valueSize) !== 0) {
      console.error("THREE.KeyframeTrack: Invalid value size in track.", this);
      valid = false;
    }
    const times = this.times, values = this.values, nKeys = times.length;
    if (nKeys === 0) {
      console.error("THREE.KeyframeTrack: Track is empty.", this);
      valid = false;
    }
    let prevTime = null;
    for (let i = 0; i !== nKeys; i++) {
      const currTime = times[i];
      if (typeof currTime === "number" && isNaN(currTime)) {
        console.error("THREE.KeyframeTrack: Time is not a valid number.", this, i, currTime);
        valid = false;
        break;
      }
      if (prevTime !== null && prevTime > currTime) {
        console.error("THREE.KeyframeTrack: Out of order keys.", this, i, currTime, prevTime);
        valid = false;
        break;
      }
      prevTime = currTime;
    }
    if (values !== void 0) {
      if (isTypedArray(values)) {
        for (let i = 0, n = values.length; i !== n; ++i) {
          const value = values[i];
          if (isNaN(value)) {
            console.error("THREE.KeyframeTrack: Value is not a valid number.", this, i, value);
            valid = false;
            break;
          }
        }
      }
    }
    return valid;
  }
  // removes equivalent sequential keys as common in morph target sequences
  // (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
  optimize() {
    const times = this.times.slice(), values = this.values.slice(), stride = this.getValueSize(), smoothInterpolation = this.getInterpolation() === InterpolateSmooth, lastIndex = times.length - 1;
    let writeIndex = 1;
    for (let i = 1; i < lastIndex; ++i) {
      let keep = false;
      const time = times[i];
      const timeNext = times[i + 1];
      if (time !== timeNext && (i !== 1 || time !== times[0])) {
        if (!smoothInterpolation) {
          const offset = i * stride, offsetP = offset - stride, offsetN = offset + stride;
          for (let j = 0; j !== stride; ++j) {
            const value = values[offset + j];
            if (value !== values[offsetP + j] || value !== values[offsetN + j]) {
              keep = true;
              break;
            }
          }
        } else {
          keep = true;
        }
      }
      if (keep) {
        if (i !== writeIndex) {
          times[writeIndex] = times[i];
          const readOffset = i * stride, writeOffset = writeIndex * stride;
          for (let j = 0; j !== stride; ++j) {
            values[writeOffset + j] = values[readOffset + j];
          }
        }
        ++writeIndex;
      }
    }
    if (lastIndex > 0) {
      times[writeIndex] = times[lastIndex];
      for (let readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++j) {
        values[writeOffset + j] = values[readOffset + j];
      }
      ++writeIndex;
    }
    if (writeIndex !== times.length) {
      this.times = times.slice(0, writeIndex);
      this.values = values.slice(0, writeIndex * stride);
    } else {
      this.times = times;
      this.values = values;
    }
    return this;
  }
  clone() {
    const times = this.times.slice();
    const values = this.values.slice();
    const TypedKeyframeTrack = this.constructor;
    const track = new TypedKeyframeTrack(this.name, times, values);
    track.createInterpolant = this.createInterpolant;
    return track;
  }
};
KeyframeTrack.prototype.TimeBufferType = Float32Array;
KeyframeTrack.prototype.ValueBufferType = Float32Array;
KeyframeTrack.prototype.DefaultInterpolation = InterpolateLinear;
var BooleanKeyframeTrack = class extends KeyframeTrack {
  // No interpolation parameter because only InterpolateDiscrete is valid.
  constructor(name, times, values) {
    super(name, times, values);
  }
};
BooleanKeyframeTrack.prototype.ValueTypeName = "bool";
BooleanKeyframeTrack.prototype.ValueBufferType = Array;
BooleanKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
BooleanKeyframeTrack.prototype.InterpolantFactoryMethodLinear = void 0;
BooleanKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = void 0;
var ColorKeyframeTrack = class extends KeyframeTrack {
};
ColorKeyframeTrack.prototype.ValueTypeName = "color";
var NumberKeyframeTrack = class extends KeyframeTrack {
};
NumberKeyframeTrack.prototype.ValueTypeName = "number";
var QuaternionLinearInterpolant = class extends Interpolant {
  constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
    super(parameterPositions, sampleValues, sampleSize, resultBuffer);
  }
  interpolate_(i1, t0, t, t1) {
    const result = this.resultBuffer, values = this.sampleValues, stride = this.valueSize, alpha = (t - t0) / (t1 - t0);
    let offset = i1 * stride;
    for (let end = offset + stride; offset !== end; offset += 4) {
      Quaternion.slerpFlat(result, 0, values, offset - stride, values, offset, alpha);
    }
    return result;
  }
};
var QuaternionKeyframeTrack = class extends KeyframeTrack {
  InterpolantFactoryMethodLinear(result) {
    return new QuaternionLinearInterpolant(this.times, this.values, this.getValueSize(), result);
  }
};
QuaternionKeyframeTrack.prototype.ValueTypeName = "quaternion";
QuaternionKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = void 0;
var StringKeyframeTrack = class extends KeyframeTrack {
  // No interpolation parameter because only InterpolateDiscrete is valid.
  constructor(name, times, values) {
    super(name, times, values);
  }
};
StringKeyframeTrack.prototype.ValueTypeName = "string";
StringKeyframeTrack.prototype.ValueBufferType = Array;
StringKeyframeTrack.prototype.DefaultInterpolation = InterpolateDiscrete;
StringKeyframeTrack.prototype.InterpolantFactoryMethodLinear = void 0;
StringKeyframeTrack.prototype.InterpolantFactoryMethodSmooth = void 0;
var VectorKeyframeTrack = class extends KeyframeTrack {
};
VectorKeyframeTrack.prototype.ValueTypeName = "vector";
var AnimationClip = class {
  constructor(name = "", duration = -1, tracks = [], blendMode = NormalAnimationBlendMode) {
    this.name = name;
    this.tracks = tracks;
    this.duration = duration;
    this.blendMode = blendMode;
    this.uuid = generateUUID();
    if (this.duration < 0) {
      this.resetDuration();
    }
  }
  static parse(json) {
    const tracks = [], jsonTracks = json.tracks, frameTime = 1 / (json.fps || 1);
    for (let i = 0, n = jsonTracks.length; i !== n; ++i) {
      tracks.push(parseKeyframeTrack(jsonTracks[i]).scale(frameTime));
    }
    const clip = new this(json.name, json.duration, tracks, json.blendMode);
    clip.uuid = json.uuid;
    return clip;
  }
  static toJSON(clip) {
    const tracks = [], clipTracks = clip.tracks;
    const json = {
      "name": clip.name,
      "duration": clip.duration,
      "tracks": tracks,
      "uuid": clip.uuid,
      "blendMode": clip.blendMode
    };
    for (let i = 0, n = clipTracks.length; i !== n; ++i) {
      tracks.push(KeyframeTrack.toJSON(clipTracks[i]));
    }
    return json;
  }
  static CreateFromMorphTargetSequence(name, morphTargetSequence, fps, noLoop) {
    const numMorphTargets = morphTargetSequence.length;
    const tracks = [];
    for (let i = 0; i < numMorphTargets; i++) {
      let times = [];
      let values = [];
      times.push(
        (i + numMorphTargets - 1) % numMorphTargets,
        i,
        (i + 1) % numMorphTargets
      );
      values.push(0, 1, 0);
      const order = getKeyframeOrder(times);
      times = sortedArray(times, 1, order);
      values = sortedArray(values, 1, order);
      if (!noLoop && times[0] === 0) {
        times.push(numMorphTargets);
        values.push(values[0]);
      }
      tracks.push(
        new NumberKeyframeTrack(
          ".morphTargetInfluences[" + morphTargetSequence[i].name + "]",
          times,
          values
        ).scale(1 / fps)
      );
    }
    return new this(name, -1, tracks);
  }
  static findByName(objectOrClipArray, name) {
    let clipArray = objectOrClipArray;
    if (!Array.isArray(objectOrClipArray)) {
      const o = objectOrClipArray;
      clipArray = o.geometry && o.geometry.animations || o.animations;
    }
    for (let i = 0; i < clipArray.length; i++) {
      if (clipArray[i].name === name) {
        return clipArray[i];
      }
    }
    return null;
  }
  static CreateClipsFromMorphTargetSequences(morphTargets, fps, noLoop) {
    const animationToMorphTargets = {};
    const pattern = /^([\w-]*?)([\d]+)$/;
    for (let i = 0, il = morphTargets.length; i < il; i++) {
      const morphTarget = morphTargets[i];
      const parts = morphTarget.name.match(pattern);
      if (parts && parts.length > 1) {
        const name = parts[1];
        let animationMorphTargets = animationToMorphTargets[name];
        if (!animationMorphTargets) {
          animationToMorphTargets[name] = animationMorphTargets = [];
        }
        animationMorphTargets.push(morphTarget);
      }
    }
    const clips = [];
    for (const name in animationToMorphTargets) {
      clips.push(this.CreateFromMorphTargetSequence(name, animationToMorphTargets[name], fps, noLoop));
    }
    return clips;
  }
  // parse the animation.hierarchy format
  static parseAnimation(animation, bones) {
    if (!animation) {
      console.error("THREE.AnimationClip: No animation in JSONLoader data.");
      return null;
    }
    const addNonemptyTrack = function(trackType, trackName, animationKeys, propertyName, destTracks) {
      if (animationKeys.length !== 0) {
        const times = [];
        const values = [];
        flattenJSON(animationKeys, times, values, propertyName);
        if (times.length !== 0) {
          destTracks.push(new trackType(trackName, times, values));
        }
      }
    };
    const tracks = [];
    const clipName = animation.name || "default";
    const fps = animation.fps || 30;
    const blendMode = animation.blendMode;
    let duration = animation.length || -1;
    const hierarchyTracks = animation.hierarchy || [];
    for (let h = 0; h < hierarchyTracks.length; h++) {
      const animationKeys = hierarchyTracks[h].keys;
      if (!animationKeys || animationKeys.length === 0) continue;
      if (animationKeys[0].morphTargets) {
        const morphTargetNames = {};
        let k;
        for (k = 0; k < animationKeys.length; k++) {
          if (animationKeys[k].morphTargets) {
            for (let m = 0; m < animationKeys[k].morphTargets.length; m++) {
              morphTargetNames[animationKeys[k].morphTargets[m]] = -1;
            }
          }
        }
        for (const morphTargetName in morphTargetNames) {
          const times = [];
          const values = [];
          for (let m = 0; m !== animationKeys[k].morphTargets.length; ++m) {
            const animationKey = animationKeys[k];
            times.push(animationKey.time);
            values.push(animationKey.morphTarget === morphTargetName ? 1 : 0);
          }
          tracks.push(new NumberKeyframeTrack(".morphTargetInfluence[" + morphTargetName + "]", times, values));
        }
        duration = morphTargetNames.length * fps;
      } else {
        const boneName = ".bones[" + bones[h].name + "]";
        addNonemptyTrack(
          VectorKeyframeTrack,
          boneName + ".position",
          animationKeys,
          "pos",
          tracks
        );
        addNonemptyTrack(
          QuaternionKeyframeTrack,
          boneName + ".quaternion",
          animationKeys,
          "rot",
          tracks
        );
        addNonemptyTrack(
          VectorKeyframeTrack,
          boneName + ".scale",
          animationKeys,
          "scl",
          tracks
        );
      }
    }
    if (tracks.length === 0) {
      return null;
    }
    const clip = new this(clipName, duration, tracks, blendMode);
    return clip;
  }
  resetDuration() {
    const tracks = this.tracks;
    let duration = 0;
    for (let i = 0, n = tracks.length; i !== n; ++i) {
      const track = this.tracks[i];
      duration = Math.max(duration, track.times[track.times.length - 1]);
    }
    this.duration = duration;
    return this;
  }
  trim() {
    for (let i = 0; i < this.tracks.length; i++) {
      this.tracks[i].trim(0, this.duration);
    }
    return this;
  }
  validate() {
    let valid = true;
    for (let i = 0; i < this.tracks.length; i++) {
      valid = valid && this.tracks[i].validate();
    }
    return valid;
  }
  optimize() {
    for (let i = 0; i < this.tracks.length; i++) {
      this.tracks[i].optimize();
    }
    return this;
  }
  clone() {
    const tracks = [];
    for (let i = 0; i < this.tracks.length; i++) {
      tracks.push(this.tracks[i].clone());
    }
    return new this.constructor(this.name, this.duration, tracks, this.blendMode);
  }
  toJSON() {
    return this.constructor.toJSON(this);
  }
};
function getTrackTypeForValueTypeName(typeName) {
  switch (typeName.toLowerCase()) {
    case "scalar":
    case "double":
    case "float":
    case "number":
    case "integer":
      return NumberKeyframeTrack;
    case "vector":
    case "vector2":
    case "vector3":
    case "vector4":
      return VectorKeyframeTrack;
    case "color":
      return ColorKeyframeTrack;
    case "quaternion":
      return QuaternionKeyframeTrack;
    case "bool":
    case "boolean":
      return BooleanKeyframeTrack;
    case "string":
      return StringKeyframeTrack;
  }
  throw new Error("THREE.KeyframeTrack: Unsupported typeName: " + typeName);
}
function parseKeyframeTrack(json) {
  if (json.type === void 0) {
    throw new Error("THREE.KeyframeTrack: track type undefined, can not parse");
  }
  const trackType = getTrackTypeForValueTypeName(json.type);
  if (json.times === void 0) {
    const times = [], values = [];
    flattenJSON(json.keys, times, values, "value");
    json.times = times;
    json.values = values;
  }
  if (trackType.parse !== void 0) {
    return trackType.parse(json);
  } else {
    return new trackType(json.name, json.times, json.values, json.interpolation);
  }
}
var Cache = {
  enabled: false,
  files: {},
  add: function(key, file) {
    if (this.enabled === false) return;
    this.files[key] = file;
  },
  get: function(key) {
    if (this.enabled === false) return;
    return this.files[key];
  },
  remove: function(key) {
    delete this.files[key];
  },
  clear: function() {
    this.files = {};
  }
};
var LoadingManager = class {
  constructor(onLoad, onProgress, onError) {
    const scope = this;
    let isLoading = false;
    let itemsLoaded = 0;
    let itemsTotal = 0;
    let urlModifier = void 0;
    const handlers = [];
    this.onStart = void 0;
    this.onLoad = onLoad;
    this.onProgress = onProgress;
    this.onError = onError;
    this.itemStart = function(url) {
      itemsTotal++;
      if (isLoading === false) {
        if (scope.onStart !== void 0) {
          scope.onStart(url, itemsLoaded, itemsTotal);
        }
      }
      isLoading = true;
    };
    this.itemEnd = function(url) {
      itemsLoaded++;
      if (scope.onProgress !== void 0) {
        scope.onProgress(url, itemsLoaded, itemsTotal);
      }
      if (itemsLoaded === itemsTotal) {
        isLoading = false;
        if (scope.onLoad !== void 0) {
          scope.onLoad();
        }
      }
    };
    this.itemError = function(url) {
      if (scope.onError !== void 0) {
        scope.onError(url);
      }
    };
    this.resolveURL = function(url) {
      if (urlModifier) {
        return urlModifier(url);
      }
      return url;
    };
    this.setURLModifier = function(transform) {
      urlModifier = transform;
      return this;
    };
    this.addHandler = function(regex, loader2) {
      handlers.push(regex, loader2);
      return this;
    };
    this.removeHandler = function(regex) {
      const index = handlers.indexOf(regex);
      if (index !== -1) {
        handlers.splice(index, 2);
      }
      return this;
    };
    this.getHandler = function(file) {
      for (let i = 0, l = handlers.length; i < l; i += 2) {
        const regex = handlers[i];
        const loader2 = handlers[i + 1];
        if (regex.global) regex.lastIndex = 0;
        if (regex.test(file)) {
          return loader2;
        }
      }
      return null;
    };
  }
};
var DefaultLoadingManager = /* @__PURE__ */ new LoadingManager();
var Loader = class {
  constructor(manager) {
    this.manager = manager !== void 0 ? manager : DefaultLoadingManager;
    this.crossOrigin = "anonymous";
    this.withCredentials = false;
    this.path = "";
    this.resourcePath = "";
    this.requestHeader = {};
  }
  load() {
  }
  loadAsync(url, onProgress) {
    const scope = this;
    return new Promise(function(resolve, reject) {
      scope.load(url, resolve, onProgress, reject);
    });
  }
  parse() {
  }
  setCrossOrigin(crossOrigin) {
    this.crossOrigin = crossOrigin;
    return this;
  }
  setWithCredentials(value) {
    this.withCredentials = value;
    return this;
  }
  setPath(path) {
    this.path = path;
    return this;
  }
  setResourcePath(resourcePath) {
    this.resourcePath = resourcePath;
    return this;
  }
  setRequestHeader(requestHeader) {
    this.requestHeader = requestHeader;
    return this;
  }
};
Loader.DEFAULT_MATERIAL_NAME = "__DEFAULT";
var loading = {};
var HttpError = class extends Error {
  constructor(message, response) {
    super(message);
    this.response = response;
  }
};
var FileLoader = class extends Loader {
  constructor(manager) {
    super(manager);
  }
  load(url, onLoad, onProgress, onError) {
    if (url === void 0) url = "";
    if (this.path !== void 0) url = this.path + url;
    url = this.manager.resolveURL(url);
    const cached = Cache.get(url);
    if (cached !== void 0) {
      this.manager.itemStart(url);
      setTimeout(() => {
        if (onLoad) onLoad(cached);
        this.manager.itemEnd(url);
      }, 0);
      return cached;
    }
    if (loading[url] !== void 0) {
      loading[url].push({
        onLoad,
        onProgress,
        onError
      });
      return;
    }
    loading[url] = [];
    loading[url].push({
      onLoad,
      onProgress,
      onError
    });
    const req = new Request(url, {
      headers: new Headers(this.requestHeader),
      credentials: this.withCredentials ? "include" : "same-origin"
      // An abort controller could be added within a future PR
    });
    const mimeType = this.mimeType;
    const responseType = this.responseType;
    fetch(req).then((response) => {
      if (response.status === 200 || response.status === 0) {
        if (response.status === 0) {
          console.warn("THREE.FileLoader: HTTP Status 0 received.");
        }
        if (typeof ReadableStream === "undefined" || response.body === void 0 || response.body.getReader === void 0) {
          return response;
        }
        const callbacks = loading[url];
        const reader = response.body.getReader();
        const contentLength = response.headers.get("X-File-Size") || response.headers.get("Content-Length");
        const total = contentLength ? parseInt(contentLength) : 0;
        const lengthComputable = total !== 0;
        let loaded = 0;
        const stream = new ReadableStream({
          start(controller) {
            readData();
            function readData() {
              reader.read().then(({ done, value }) => {
                if (done) {
                  controller.close();
                } else {
                  loaded += value.byteLength;
                  const event = new ProgressEvent("progress", { lengthComputable, loaded, total });
                  for (let i = 0, il = callbacks.length; i < il; i++) {
                    const callback = callbacks[i];
                    if (callback.onProgress) callback.onProgress(event);
                  }
                  controller.enqueue(value);
                  readData();
                }
              }, (e) => {
                controller.error(e);
              });
            }
          }
        });
        return new Response(stream);
      } else {
        throw new HttpError(`fetch for "${response.url}" responded with ${response.status}: ${response.statusText}`, response);
      }
    }).then((response) => {
      switch (responseType) {
        case "arraybuffer":
          return response.arrayBuffer();
        case "blob":
          return response.blob();
        case "document":
          return response.text().then((text) => {
            const parser = new DOMParser();
            return parser.parseFromString(text, mimeType);
          });
        case "json":
          return response.json();
        default:
          if (mimeType === void 0) {
            return response.text();
          } else {
            const re = /charset="?([^;"\s]*)"?/i;
            const exec = re.exec(mimeType);
            const label = exec && exec[1] ? exec[1].toLowerCase() : void 0;
            const decoder = new TextDecoder(label);
            return response.arrayBuffer().then((ab) => decoder.decode(ab));
          }
      }
    }).then((data) => {
      Cache.add(url, data);
      const callbacks = loading[url];
      delete loading[url];
      for (let i = 0, il = callbacks.length; i < il; i++) {
        const callback = callbacks[i];
        if (callback.onLoad) callback.onLoad(data);
      }
    }).catch((err) => {
      const callbacks = loading[url];
      if (callbacks === void 0) {
        this.manager.itemError(url);
        throw err;
      }
      delete loading[url];
      for (let i = 0, il = callbacks.length; i < il; i++) {
        const callback = callbacks[i];
        if (callback.onError) callback.onError(err);
      }
      this.manager.itemError(url);
    }).finally(() => {
      this.manager.itemEnd(url);
    });
    this.manager.itemStart(url);
  }
  setResponseType(value) {
    this.responseType = value;
    return this;
  }
  setMimeType(value) {
    this.mimeType = value;
    return this;
  }
};
var ImageLoader = class extends Loader {
  constructor(manager) {
    super(manager);
  }
  load(url, onLoad, onProgress, onError) {
    if (this.path !== void 0) url = this.path + url;
    url = this.manager.resolveURL(url);
    const scope = this;
    const cached = Cache.get(url);
    if (cached !== void 0) {
      scope.manager.itemStart(url);
      setTimeout(function() {
        if (onLoad) onLoad(cached);
        scope.manager.itemEnd(url);
      }, 0);
      return cached;
    }
    const image = createElementNS("img");
    function onImageLoad() {
      removeEventListeners();
      Cache.add(url, this);
      if (onLoad) onLoad(this);
      scope.manager.itemEnd(url);
    }
    function onImageError(event) {
      removeEventListeners();
      if (onError) onError(event);
      scope.manager.itemError(url);
      scope.manager.itemEnd(url);
    }
    function removeEventListeners() {
      image.removeEventListener("load", onImageLoad, false);
      image.removeEventListener("error", onImageError, false);
    }
    image.addEventListener("load", onImageLoad, false);
    image.addEventListener("error", onImageError, false);
    if (url.slice(0, 5) !== "data:") {
      if (this.crossOrigin !== void 0) image.crossOrigin = this.crossOrigin;
    }
    scope.manager.itemStart(url);
    image.src = url;
    return image;
  }
};
var TextureLoader = class extends Loader {
  constructor(manager) {
    super(manager);
  }
  load(url, onLoad, onProgress, onError) {
    const texture = new Texture();
    const loader2 = new ImageLoader(this.manager);
    loader2.setCrossOrigin(this.crossOrigin);
    loader2.setPath(this.path);
    loader2.load(url, function(image) {
      texture.image = image;
      texture.needsUpdate = true;
      if (onLoad !== void 0) {
        onLoad(texture);
      }
    }, onProgress, onError);
    return texture;
  }
};
var Light = class extends Object3D {
  constructor(color, intensity = 1) {
    super();
    this.isLight = true;
    this.type = "Light";
    this.color = new Color(color);
    this.intensity = intensity;
  }
  dispose() {
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.color.copy(source.color);
    this.intensity = source.intensity;
    return this;
  }
  toJSON(meta) {
    const data = super.toJSON(meta);
    data.object.color = this.color.getHex();
    data.object.intensity = this.intensity;
    if (this.groundColor !== void 0) data.object.groundColor = this.groundColor.getHex();
    if (this.distance !== void 0) data.object.distance = this.distance;
    if (this.angle !== void 0) data.object.angle = this.angle;
    if (this.decay !== void 0) data.object.decay = this.decay;
    if (this.penumbra !== void 0) data.object.penumbra = this.penumbra;
    if (this.shadow !== void 0) data.object.shadow = this.shadow.toJSON();
    if (this.target !== void 0) data.object.target = this.target.uuid;
    return data;
  }
};
var _projScreenMatrix$1 = /* @__PURE__ */ new Matrix4();
var _lightPositionWorld$1 = /* @__PURE__ */ new Vector3();
var _lookTarget$1 = /* @__PURE__ */ new Vector3();
var LightShadow = class {
  constructor(camera) {
    this.camera = camera;
    this.intensity = 1;
    this.bias = 0;
    this.normalBias = 0;
    this.radius = 1;
    this.blurSamples = 8;
    this.mapSize = new Vector2(512, 512);
    this.map = null;
    this.mapPass = null;
    this.matrix = new Matrix4();
    this.autoUpdate = true;
    this.needsUpdate = false;
    this._frustum = new Frustum();
    this._frameExtents = new Vector2(1, 1);
    this._viewportCount = 1;
    this._viewports = [
      new Vector4(0, 0, 1, 1)
    ];
  }
  getViewportCount() {
    return this._viewportCount;
  }
  getFrustum() {
    return this._frustum;
  }
  updateMatrices(light) {
    const shadowCamera = this.camera;
    const shadowMatrix = this.matrix;
    _lightPositionWorld$1.setFromMatrixPosition(light.matrixWorld);
    shadowCamera.position.copy(_lightPositionWorld$1);
    _lookTarget$1.setFromMatrixPosition(light.target.matrixWorld);
    shadowCamera.lookAt(_lookTarget$1);
    shadowCamera.updateMatrixWorld();
    _projScreenMatrix$1.multiplyMatrices(shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse);
    this._frustum.setFromProjectionMatrix(_projScreenMatrix$1);
    shadowMatrix.set(
      0.5,
      0,
      0,
      0.5,
      0,
      0.5,
      0,
      0.5,
      0,
      0,
      0.5,
      0.5,
      0,
      0,
      0,
      1
    );
    shadowMatrix.multiply(_projScreenMatrix$1);
  }
  getViewport(viewportIndex) {
    return this._viewports[viewportIndex];
  }
  getFrameExtents() {
    return this._frameExtents;
  }
  dispose() {
    if (this.map) {
      this.map.dispose();
    }
    if (this.mapPass) {
      this.mapPass.dispose();
    }
  }
  copy(source) {
    this.camera = source.camera.clone();
    this.intensity = source.intensity;
    this.bias = source.bias;
    this.radius = source.radius;
    this.mapSize.copy(source.mapSize);
    return this;
  }
  clone() {
    return new this.constructor().copy(this);
  }
  toJSON() {
    const object = {};
    if (this.intensity !== 1) object.intensity = this.intensity;
    if (this.bias !== 0) object.bias = this.bias;
    if (this.normalBias !== 0) object.normalBias = this.normalBias;
    if (this.radius !== 1) object.radius = this.radius;
    if (this.mapSize.x !== 512 || this.mapSize.y !== 512) object.mapSize = this.mapSize.toArray();
    object.camera = this.camera.toJSON(false).object;
    delete object.camera.matrix;
    return object;
  }
};
var SpotLightShadow = class extends LightShadow {
  constructor() {
    super(new PerspectiveCamera(50, 1, 0.5, 500));
    this.isSpotLightShadow = true;
    this.focus = 1;
  }
  updateMatrices(light) {
    const camera = this.camera;
    const fov2 = RAD2DEG * 2 * light.angle * this.focus;
    const aspect2 = this.mapSize.width / this.mapSize.height;
    const far = light.distance || camera.far;
    if (fov2 !== camera.fov || aspect2 !== camera.aspect || far !== camera.far) {
      camera.fov = fov2;
      camera.aspect = aspect2;
      camera.far = far;
      camera.updateProjectionMatrix();
    }
    super.updateMatrices(light);
  }
  copy(source) {
    super.copy(source);
    this.focus = source.focus;
    return this;
  }
};
var SpotLight = class extends Light {
  constructor(color, intensity, distance = 0, angle = Math.PI / 3, penumbra = 0, decay = 2) {
    super(color, intensity);
    this.isSpotLight = true;
    this.type = "SpotLight";
    this.position.copy(Object3D.DEFAULT_UP);
    this.updateMatrix();
    this.target = new Object3D();
    this.distance = distance;
    this.angle = angle;
    this.penumbra = penumbra;
    this.decay = decay;
    this.map = null;
    this.shadow = new SpotLightShadow();
  }
  get power() {
    return this.intensity * Math.PI;
  }
  set power(power) {
    this.intensity = power / Math.PI;
  }
  dispose() {
    this.shadow.dispose();
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.distance = source.distance;
    this.angle = source.angle;
    this.penumbra = source.penumbra;
    this.decay = source.decay;
    this.target = source.target.clone();
    this.shadow = source.shadow.clone();
    return this;
  }
};
var _projScreenMatrix = /* @__PURE__ */ new Matrix4();
var _lightPositionWorld = /* @__PURE__ */ new Vector3();
var _lookTarget = /* @__PURE__ */ new Vector3();
var PointLightShadow = class extends LightShadow {
  constructor() {
    super(new PerspectiveCamera(90, 1, 0.5, 500));
    this.isPointLightShadow = true;
    this._frameExtents = new Vector2(4, 2);
    this._viewportCount = 6;
    this._viewports = [
      // These viewports map a cube-map onto a 2D texture with the
      // following orientation:
      //
      //  xzXZ
      //   y Y
      //
      // X - Positive x direction
      // x - Negative x direction
      // Y - Positive y direction
      // y - Negative y direction
      // Z - Positive z direction
      // z - Negative z direction
      // positive X
      new Vector4(2, 1, 1, 1),
      // negative X
      new Vector4(0, 1, 1, 1),
      // positive Z
      new Vector4(3, 1, 1, 1),
      // negative Z
      new Vector4(1, 1, 1, 1),
      // positive Y
      new Vector4(3, 0, 1, 1),
      // negative Y
      new Vector4(1, 0, 1, 1)
    ];
    this._cubeDirections = [
      new Vector3(1, 0, 0),
      new Vector3(-1, 0, 0),
      new Vector3(0, 0, 1),
      new Vector3(0, 0, -1),
      new Vector3(0, 1, 0),
      new Vector3(0, -1, 0)
    ];
    this._cubeUps = [
      new Vector3(0, 1, 0),
      new Vector3(0, 1, 0),
      new Vector3(0, 1, 0),
      new Vector3(0, 1, 0),
      new Vector3(0, 0, 1),
      new Vector3(0, 0, -1)
    ];
  }
  updateMatrices(light, viewportIndex = 0) {
    const camera = this.camera;
    const shadowMatrix = this.matrix;
    const far = light.distance || camera.far;
    if (far !== camera.far) {
      camera.far = far;
      camera.updateProjectionMatrix();
    }
    _lightPositionWorld.setFromMatrixPosition(light.matrixWorld);
    camera.position.copy(_lightPositionWorld);
    _lookTarget.copy(camera.position);
    _lookTarget.add(this._cubeDirections[viewportIndex]);
    camera.up.copy(this._cubeUps[viewportIndex]);
    camera.lookAt(_lookTarget);
    camera.updateMatrixWorld();
    shadowMatrix.makeTranslation(-_lightPositionWorld.x, -_lightPositionWorld.y, -_lightPositionWorld.z);
    _projScreenMatrix.multiplyMatrices(camera.projectionMatrix, camera.matrixWorldInverse);
    this._frustum.setFromProjectionMatrix(_projScreenMatrix);
  }
};
var PointLight = class extends Light {
  constructor(color, intensity, distance = 0, decay = 2) {
    super(color, intensity);
    this.isPointLight = true;
    this.type = "PointLight";
    this.distance = distance;
    this.decay = decay;
    this.shadow = new PointLightShadow();
  }
  get power() {
    return this.intensity * 4 * Math.PI;
  }
  set power(power) {
    this.intensity = power / (4 * Math.PI);
  }
  dispose() {
    this.shadow.dispose();
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.distance = source.distance;
    this.decay = source.decay;
    this.shadow = source.shadow.clone();
    return this;
  }
};
var OrthographicCamera = class extends Camera {
  constructor(left = -1, right = 1, top = 1, bottom = -1, near = 0.1, far = 2e3) {
    super();
    this.isOrthographicCamera = true;
    this.type = "OrthographicCamera";
    this.zoom = 1;
    this.view = null;
    this.left = left;
    this.right = right;
    this.top = top;
    this.bottom = bottom;
    this.near = near;
    this.far = far;
    this.updateProjectionMatrix();
  }
  copy(source, recursive) {
    super.copy(source, recursive);
    this.left = source.left;
    this.right = source.right;
    this.top = source.top;
    this.bottom = source.bottom;
    this.near = source.near;
    this.far = source.far;
    this.zoom = source.zoom;
    this.view = source.view === null ? null : Object.assign({}, source.view);
    return this;
  }
  setViewOffset(fullWidth, fullHeight, x, y, width, height) {
    if (this.view === null) {
      this.view = {
        enabled: true,
        fullWidth: 1,
        fullHeight: 1,
        offsetX: 0,
        offsetY: 0,
        width: 1,
        height: 1
      };
    }
    this.view.enabled = true;
    this.view.fullWidth = fullWidth;
    this.view.fullHeight = fullHeight;
    this.view.offsetX = x;
    this.view.offsetY = y;
    this.view.width = width;
    this.view.height = height;
    this.updateProjectionMatrix();
  }
  clearViewOffset() {
    if (this.view !== null) {
      this.view.enabled = false;
    }
    this.updateProjectionMatrix();
  }
  updateProjectionMatrix() {
    const dx = (this.right - this.left) / (2 * this.zoom);
    const dy = (this.top - this.bottom) / (2 * this.zoom);
    const cx = (this.right + this.left) / 2;
    const cy = (this.top + this.bottom) / 2;
    let left = cx - dx;
    let right = cx + dx;
    let top = cy + dy;
    let bottom = cy - dy;
    if (this.view !== null && this.view.enabled) {
      const scaleW = (this.right - this.left) / this.view.fullWidth / this.zoom;
      const scaleH = (this.top - this.bottom) / this.view.fullHeight / this.zoom;
      left += scaleW * this.view.offsetX;
      right = left + scaleW * this.view.width;
      top -= scaleH * this.view.offsetY;
      bottom = top - scaleH * this.view.height;
    }
    this.projectionMatrix.makeOrthographic(left, right, top, bottom, this.near, this.far, this.coordinateSystem);
    this.projectionMatrixInverse.copy(this.projectionMatrix).invert();
  }
  toJSON(meta) {
    const data = super.toJSON(meta);
    data.object.zoom = this.zoom;
    data.object.left = this.left;
    data.object.right = this.right;
    data.object.top = this.top;
    data.object.bottom = this.bottom;
    data.object.near = this.near;
    data.object.far = this.far;
    if (this.view !== null) data.object.view = Object.assign({}, this.view);
    return data;
  }
};
var DirectionalLightShadow = class extends LightShadow {
  constructor() {
    super(new OrthographicCamera(-5, 5, 5, -5, 0.5, 500));
    this.isDirectionalLightShadow = true;
  }
};
var DirectionalLight = class extends Light {
  constructor(color, intensity) {
    super(color, intensity);
    this.isDirectionalLight = true;
    this.type = "DirectionalLight";
    this.position.copy(Object3D.DEFAULT_UP);
    this.updateMatrix();
    this.target = new Object3D();
    this.shadow = new DirectionalLightShadow();
  }
  dispose() {
    this.shadow.dispose();
  }
  copy(source) {
    super.copy(source);
    this.target = source.target.clone();
    this.shadow = source.shadow.clone();
    return this;
  }
};
var AmbientLight = class extends Light {
  constructor(color, intensity) {
    super(color, intensity);
    this.isAmbientLight = true;
    this.type = "AmbientLight";
  }
};
var LoaderUtils = class {
  static decodeText(array) {
    console.warn("THREE.LoaderUtils: decodeText() has been deprecated with r165 and will be removed with r175. Use TextDecoder instead.");
    if (typeof TextDecoder !== "undefined") {
      return new TextDecoder().decode(array);
    }
    let s = "";
    for (let i = 0, il = array.length; i < il; i++) {
      s += String.fromCharCode(array[i]);
    }
    try {
      return decodeURIComponent(escape(s));
    } catch (e) {
      return s;
    }
  }
  static extractUrlBase(url) {
    const index = url.lastIndexOf("/");
    if (index === -1) return "./";
    return url.slice(0, index + 1);
  }
  static resolveURL(url, path) {
    if (typeof url !== "string" || url === "") return "";
    if (/^https?:\/\//i.test(path) && /^\//.test(url)) {
      path = path.replace(/(^https?:\/\/[^\/]+).*/i, "$1");
    }
    if (/^(https?:)?\/\//i.test(url)) return url;
    if (/^data:.*,.*$/i.test(url)) return url;
    if (/^blob:.*$/i.test(url)) return url;
    return path + url;
  }
};
var ImageBitmapLoader = class extends Loader {
  constructor(manager) {
    super(manager);
    this.isImageBitmapLoader = true;
    if (typeof createImageBitmap === "undefined") {
      console.warn("THREE.ImageBitmapLoader: createImageBitmap() not supported.");
    }
    if (typeof fetch === "undefined") {
      console.warn("THREE.ImageBitmapLoader: fetch() not supported.");
    }
    this.options = { premultiplyAlpha: "none" };
  }
  setOptions(options) {
    this.options = options;
    return this;
  }
  load(url, onLoad, onProgress, onError) {
    if (url === void 0) url = "";
    if (this.path !== void 0) url = this.path + url;
    url = this.manager.resolveURL(url);
    const scope = this;
    const cached = Cache.get(url);
    if (cached !== void 0) {
      scope.manager.itemStart(url);
      if (cached.then) {
        cached.then((imageBitmap) => {
          if (onLoad) onLoad(imageBitmap);
          scope.manager.itemEnd(url);
        }).catch((e) => {
          if (onError) onError(e);
        });
        return;
      }
      setTimeout(function() {
        if (onLoad) onLoad(cached);
        scope.manager.itemEnd(url);
      }, 0);
      return cached;
    }
    const fetchOptions = {};
    fetchOptions.credentials = this.crossOrigin === "anonymous" ? "same-origin" : "include";
    fetchOptions.headers = this.requestHeader;
    const promise = fetch(url, fetchOptions).then(function(res) {
      return res.blob();
    }).then(function(blob) {
      return createImageBitmap(blob, Object.assign(scope.options, { colorSpaceConversion: "none" }));
    }).then(function(imageBitmap) {
      Cache.add(url, imageBitmap);
      if (onLoad) onLoad(imageBitmap);
      scope.manager.itemEnd(url);
      return imageBitmap;
    }).catch(function(e) {
      if (onError) onError(e);
      Cache.remove(url);
      scope.manager.itemError(url);
      scope.manager.itemEnd(url);
    });
    Cache.add(url, promise);
    scope.manager.itemStart(url);
  }
};
var ArrayCamera = class extends PerspectiveCamera {
  constructor(array = []) {
    super();
    this.isArrayCamera = true;
    this.cameras = array;
  }
};
var _RESERVED_CHARS_RE = "\\[\\]\\.:\\/";
var _reservedRe = new RegExp("[" + _RESERVED_CHARS_RE + "]", "g");
var _wordChar = "[^" + _RESERVED_CHARS_RE + "]";
var _wordCharOrDot = "[^" + _RESERVED_CHARS_RE.replace("\\.", "") + "]";
var _directoryRe = /* @__PURE__ */ /((?:WC+[\/:])*)/.source.replace("WC", _wordChar);
var _nodeRe = /* @__PURE__ */ /(WCOD+)?/.source.replace("WCOD", _wordCharOrDot);
var _objectRe = /* @__PURE__ */ /(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace("WC", _wordChar);
var _propertyRe = /* @__PURE__ */ /\.(WC+)(?:\[(.+)\])?/.source.replace("WC", _wordChar);
var _trackRe = new RegExp(
  "^" + _directoryRe + _nodeRe + _objectRe + _propertyRe + "$"
);
var _supportedObjectNames = ["material", "materials", "bones", "map"];
var Composite = class {
  constructor(targetGroup, path, optionalParsedPath) {
    const parsedPath = optionalParsedPath || PropertyBinding.parseTrackName(path);
    this._targetGroup = targetGroup;
    this._bindings = targetGroup.subscribe_(path, parsedPath);
  }
  getValue(array, offset) {
    this.bind();
    const firstValidIndex = this._targetGroup.nCachedObjects_, binding = this._bindings[firstValidIndex];
    if (binding !== void 0) binding.getValue(array, offset);
  }
  setValue(array, offset) {
    const bindings = this._bindings;
    for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
      bindings[i].setValue(array, offset);
    }
  }
  bind() {
    const bindings = this._bindings;
    for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
      bindings[i].bind();
    }
  }
  unbind() {
    const bindings = this._bindings;
    for (let i = this._targetGroup.nCachedObjects_, n = bindings.length; i !== n; ++i) {
      bindings[i].unbind();
    }
  }
};
var PropertyBinding = class _PropertyBinding {
  constructor(rootNode, path, parsedPath) {
    this.path = path;
    this.parsedPath = parsedPath || _PropertyBinding.parseTrackName(path);
    this.node = _PropertyBinding.findNode(rootNode, this.parsedPath.nodeName);
    this.rootNode = rootNode;
    this.getValue = this._getValue_unbound;
    this.setValue = this._setValue_unbound;
  }
  static create(root, path, parsedPath) {
    if (!(root && root.isAnimationObjectGroup)) {
      return new _PropertyBinding(root, path, parsedPath);
    } else {
      return new _PropertyBinding.Composite(root, path, parsedPath);
    }
  }
  /**
   * Replaces spaces with underscores and removes unsupported characters from
   * node names, to ensure compatibility with parseTrackName().
   *
   * @param {string} name Node name to be sanitized.
   * @return {string}
   */
  static sanitizeNodeName(name) {
    return name.replace(/\s/g, "_").replace(_reservedRe, "");
  }
  static parseTrackName(trackName) {
    const matches = _trackRe.exec(trackName);
    if (matches === null) {
      throw new Error("PropertyBinding: Cannot parse trackName: " + trackName);
    }
    const results = {
      // directoryName: matches[ 1 ], // (tschw) currently unused
      nodeName: matches[2],
      objectName: matches[3],
      objectIndex: matches[4],
      propertyName: matches[5],
      // required
      propertyIndex: matches[6]
    };
    const lastDot = results.nodeName && results.nodeName.lastIndexOf(".");
    if (lastDot !== void 0 && lastDot !== -1) {
      const objectName = results.nodeName.substring(lastDot + 1);
      if (_supportedObjectNames.indexOf(objectName) !== -1) {
        results.nodeName = results.nodeName.substring(0, lastDot);
        results.objectName = objectName;
      }
    }
    if (results.propertyName === null || results.propertyName.length === 0) {
      throw new Error("PropertyBinding: can not parse propertyName from trackName: " + trackName);
    }
    return results;
  }
  static findNode(root, nodeName) {
    if (nodeName === void 0 || nodeName === "" || nodeName === "." || nodeName === -1 || nodeName === root.name || nodeName === root.uuid) {
      return root;
    }
    if (root.skeleton) {
      const bone = root.skeleton.getBoneByName(nodeName);
      if (bone !== void 0) {
        return bone;
      }
    }
    if (root.children) {
      const searchNodeSubtree = function(children) {
        for (let i = 0; i < children.length; i++) {
          const childNode = children[i];
          if (childNode.name === nodeName || childNode.uuid === nodeName) {
            return childNode;
          }
          const result = searchNodeSubtree(childNode.children);
          if (result) return result;
        }
        return null;
      };
      const subTreeNode = searchNodeSubtree(root.children);
      if (subTreeNode) {
        return subTreeNode;
      }
    }
    return null;
  }
  // these are used to "bind" a nonexistent property
  _getValue_unavailable() {
  }
  _setValue_unavailable() {
  }
  // Getters
  _getValue_direct(buffer, offset) {
    buffer[offset] = this.targetObject[this.propertyName];
  }
  _getValue_array(buffer, offset) {
    const source = this.resolvedProperty;
    for (let i = 0, n = source.length; i !== n; ++i) {
      buffer[offset++] = source[i];
    }
  }
  _getValue_arrayElement(buffer, offset) {
    buffer[offset] = this.resolvedProperty[this.propertyIndex];
  }
  _getValue_toArray(buffer, offset) {
    this.resolvedProperty.toArray(buffer, offset);
  }
  // Direct
  _setValue_direct(buffer, offset) {
    this.targetObject[this.propertyName] = buffer[offset];
  }
  _setValue_direct_setNeedsUpdate(buffer, offset) {
    this.targetObject[this.propertyName] = buffer[offset];
    this.targetObject.needsUpdate = true;
  }
  _setValue_direct_setMatrixWorldNeedsUpdate(buffer, offset) {
    this.targetObject[this.propertyName] = buffer[offset];
    this.targetObject.matrixWorldNeedsUpdate = true;
  }
  // EntireArray
  _setValue_array(buffer, offset) {
    const dest = this.resolvedProperty;
    for (let i = 0, n = dest.length; i !== n; ++i) {
      dest[i] = buffer[offset++];
    }
  }
  _setValue_array_setNeedsUpdate(buffer, offset) {
    const dest = this.resolvedProperty;
    for (let i = 0, n = dest.length; i !== n; ++i) {
      dest[i] = buffer[offset++];
    }
    this.targetObject.needsUpdate = true;
  }
  _setValue_array_setMatrixWorldNeedsUpdate(buffer, offset) {
    const dest = this.resolvedProperty;
    for (let i = 0, n = dest.length; i !== n; ++i) {
      dest[i] = buffer[offset++];
    }
    this.targetObject.matrixWorldNeedsUpdate = true;
  }
  // ArrayElement
  _setValue_arrayElement(buffer, offset) {
    this.resolvedProperty[this.propertyIndex] = buffer[offset];
  }
  _setValue_arrayElement_setNeedsUpdate(buffer, offset) {
    this.resolvedProperty[this.propertyIndex] = buffer[offset];
    this.targetObject.needsUpdate = true;
  }
  _setValue_arrayElement_setMatrixWorldNeedsUpdate(buffer, offset) {
    this.resolvedProperty[this.propertyIndex] = buffer[offset];
    this.targetObject.matrixWorldNeedsUpdate = true;
  }
  // HasToFromArray
  _setValue_fromArray(buffer, offset) {
    this.resolvedProperty.fromArray(buffer, offset);
  }
  _setValue_fromArray_setNeedsUpdate(buffer, offset) {
    this.resolvedProperty.fromArray(buffer, offset);
    this.targetObject.needsUpdate = true;
  }
  _setValue_fromArray_setMatrixWorldNeedsUpdate(buffer, offset) {
    this.resolvedProperty.fromArray(buffer, offset);
    this.targetObject.matrixWorldNeedsUpdate = true;
  }
  _getValue_unbound(targetArray, offset) {
    this.bind();
    this.getValue(targetArray, offset);
  }
  _setValue_unbound(sourceArray, offset) {
    this.bind();
    this.setValue(sourceArray, offset);
  }
  // create getter / setter pair for a property in the scene graph
  bind() {
    let targetObject = this.node;
    const parsedPath = this.parsedPath;
    const objectName = parsedPath.objectName;
    const propertyName = parsedPath.propertyName;
    let propertyIndex = parsedPath.propertyIndex;
    if (!targetObject) {
      targetObject = _PropertyBinding.findNode(this.rootNode, parsedPath.nodeName);
      this.node = targetObject;
    }
    this.getValue = this._getValue_unavailable;
    this.setValue = this._setValue_unavailable;
    if (!targetObject) {
      console.warn("THREE.PropertyBinding: No target node found for track: " + this.path + ".");
      return;
    }
    if (objectName) {
      let objectIndex = parsedPath.objectIndex;
      switch (objectName) {
        case "materials":
          if (!targetObject.material) {
            console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.", this);
            return;
          }
          if (!targetObject.material.materials) {
            console.error("THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.", this);
            return;
          }
          targetObject = targetObject.material.materials;
          break;
        case "bones":
          if (!targetObject.skeleton) {
            console.error("THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.", this);
            return;
          }
          targetObject = targetObject.skeleton.bones;
          for (let i = 0; i < targetObject.length; i++) {
            if (targetObject[i].name === objectIndex) {
              objectIndex = i;
              break;
            }
          }
          break;
        case "map":
          if ("map" in targetObject) {
            targetObject = targetObject.map;
            break;
          }
          if (!targetObject.material) {
            console.error("THREE.PropertyBinding: Can not bind to material as node does not have a material.", this);
            return;
          }
          if (!targetObject.material.map) {
            console.error("THREE.PropertyBinding: Can not bind to material.map as node.material does not have a map.", this);
            return;
          }
          targetObject = targetObject.material.map;
          break;
        default:
          if (targetObject[objectName] === void 0) {
            console.error("THREE.PropertyBinding: Can not bind to objectName of node undefined.", this);
            return;
          }
          targetObject = targetObject[objectName];
      }
      if (objectIndex !== void 0) {
        if (targetObject[objectIndex] === void 0) {
          console.error("THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.", this, targetObject);
          return;
        }
        targetObject = targetObject[objectIndex];
      }
    }
    const nodeProperty = targetObject[propertyName];
    if (nodeProperty === void 0) {
      const nodeName = parsedPath.nodeName;
      console.error("THREE.PropertyBinding: Trying to update property for track: " + nodeName + "." + propertyName + " but it wasn't found.", targetObject);
      return;
    }
    let versioning = this.Versioning.None;
    this.targetObject = targetObject;
    if (targetObject.needsUpdate !== void 0) {
      versioning = this.Versioning.NeedsUpdate;
    } else if (targetObject.matrixWorldNeedsUpdate !== void 0) {
      versioning = this.Versioning.MatrixWorldNeedsUpdate;
    }
    let bindingType = this.BindingType.Direct;
    if (propertyIndex !== void 0) {
      if (propertyName === "morphTargetInfluences") {
        if (!targetObject.geometry) {
          console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.", this);
          return;
        }
        if (!targetObject.geometry.morphAttributes) {
          console.error("THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.", this);
          return;
        }
        if (targetObject.morphTargetDictionary[propertyIndex] !== void 0) {
          propertyIndex = targetObject.morphTargetDictionary[propertyIndex];
        }
      }
      bindingType = this.BindingType.ArrayElement;
      this.resolvedProperty = nodeProperty;
      this.propertyIndex = propertyIndex;
    } else if (nodeProperty.fromArray !== void 0 && nodeProperty.toArray !== void 0) {
      bindingType = this.BindingType.HasFromToArray;
      this.resolvedProperty = nodeProperty;
    } else if (Array.isArray(nodeProperty)) {
      bindingType = this.BindingType.EntireArray;
      this.resolvedProperty = nodeProperty;
    } else {
      this.propertyName = propertyName;
    }
    this.getValue = this.GetterByBindingType[bindingType];
    this.setValue = this.SetterByBindingTypeAndVersioning[bindingType][versioning];
  }
  unbind() {
    this.node = null;
    this.getValue = this._getValue_unbound;
    this.setValue = this._setValue_unbound;
  }
};
PropertyBinding.Composite = Composite;
PropertyBinding.prototype.BindingType = {
  Direct: 0,
  EntireArray: 1,
  ArrayElement: 2,
  HasFromToArray: 3
};
PropertyBinding.prototype.Versioning = {
  None: 0,
  NeedsUpdate: 1,
  MatrixWorldNeedsUpdate: 2
};
PropertyBinding.prototype.GetterByBindingType = [
  PropertyBinding.prototype._getValue_direct,
  PropertyBinding.prototype._getValue_array,
  PropertyBinding.prototype._getValue_arrayElement,
  PropertyBinding.prototype._getValue_toArray
];
PropertyBinding.prototype.SetterByBindingTypeAndVersioning = [
  [
    // Direct
    PropertyBinding.prototype._setValue_direct,
    PropertyBinding.prototype._setValue_direct_setNeedsUpdate,
    PropertyBinding.prototype._setValue_direct_setMatrixWorldNeedsUpdate
  ],
  [
    // EntireArray
    PropertyBinding.prototype._setValue_array,
    PropertyBinding.prototype._setValue_array_setNeedsUpdate,
    PropertyBinding.prototype._setValue_array_setMatrixWorldNeedsUpdate
  ],
  [
    // ArrayElement
    PropertyBinding.prototype._setValue_arrayElement,
    PropertyBinding.prototype._setValue_arrayElement_setNeedsUpdate,
    PropertyBinding.prototype._setValue_arrayElement_setMatrixWorldNeedsUpdate
  ],
  [
    // HasToFromArray
    PropertyBinding.prototype._setValue_fromArray,
    PropertyBinding.prototype._setValue_fromArray_setNeedsUpdate,
    PropertyBinding.prototype._setValue_fromArray_setMatrixWorldNeedsUpdate
  ]
];
var _controlInterpolantsResultBuffer = new Float32Array(1);
var Spherical = class {
  constructor(radius = 1, phi = 0, theta = 0) {
    this.radius = radius;
    this.phi = phi;
    this.theta = theta;
    return this;
  }
  set(radius, phi, theta) {
    this.radius = radius;
    this.phi = phi;
    this.theta = theta;
    return this;
  }
  copy(other) {
    this.radius = other.radius;
    this.phi = other.phi;
    this.theta = other.theta;
    return this;
  }
  // restrict phi to be between EPS and PI-EPS
  makeSafe() {
    const EPS = 1e-6;
    this.phi = clamp(this.phi, EPS, Math.PI - EPS);
    return this;
  }
  setFromVector3(v) {
    return this.setFromCartesianCoords(v.x, v.y, v.z);
  }
  setFromCartesianCoords(x, y, z) {
    this.radius = Math.sqrt(x * x + y * y + z * z);
    if (this.radius === 0) {
      this.theta = 0;
      this.phi = 0;
    } else {
      this.theta = Math.atan2(x, z);
      this.phi = Math.acos(clamp(y / this.radius, -1, 1));
    }
    return this;
  }
  clone() {
    return new this.constructor().copy(this);
  }
};
var Controls = class extends EventDispatcher {
  constructor(object, domElement = null) {
    super();
    this.object = object;
    this.domElement = domElement;
    this.enabled = true;
    this.state = -1;
    this.keys = {};
    this.mouseButtons = { LEFT: null, MIDDLE: null, RIGHT: null };
    this.touches = { ONE: null, TWO: null };
  }
  connect() {
  }
  disconnect() {
  }
  dispose() {
  }
  update() {
  }
};
function getByteLength(width, height, format, type) {
  const typeByteLength = getTextureTypeByteLength(type);
  switch (format) {
    // https://registry.khronos.org/OpenGL-Refpages/es3.0/html/glTexImage2D.xhtml
    case AlphaFormat:
      return width * height;
    case LuminanceFormat:
      return width * height;
    case LuminanceAlphaFormat:
      return width * height * 2;
    case RedFormat:
      return width * height / typeByteLength.components * typeByteLength.byteLength;
    case RedIntegerFormat:
      return width * height / typeByteLength.components * typeByteLength.byteLength;
    case RGFormat:
      return width * height * 2 / typeByteLength.components * typeByteLength.byteLength;
    case RGIntegerFormat:
      return width * height * 2 / typeByteLength.components * typeByteLength.byteLength;
    case RGBFormat:
      return width * height * 3 / typeByteLength.components * typeByteLength.byteLength;
    case RGBAFormat:
      return width * height * 4 / typeByteLength.components * typeByteLength.byteLength;
    case RGBAIntegerFormat:
      return width * height * 4 / typeByteLength.components * typeByteLength.byteLength;
    // https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_s3tc_srgb/
    case RGB_S3TC_DXT1_Format:
    case RGBA_S3TC_DXT1_Format:
      return Math.floor((width + 3) / 4) * Math.floor((height + 3) / 4) * 8;
    case RGBA_S3TC_DXT3_Format:
    case RGBA_S3TC_DXT5_Format:
      return Math.floor((width + 3) / 4) * Math.floor((height + 3) / 4) * 16;
    // https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_pvrtc/
    case RGB_PVRTC_2BPPV1_Format:
    case RGBA_PVRTC_2BPPV1_Format:
      return Math.max(width, 16) * Math.max(height, 8) / 4;
    case RGB_PVRTC_4BPPV1_Format:
    case RGBA_PVRTC_4BPPV1_Format:
      return Math.max(width, 8) * Math.max(height, 8) / 2;
    // https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_etc/
    case RGB_ETC1_Format:
    case RGB_ETC2_Format:
      return Math.floor((width + 3) / 4) * Math.floor((height + 3) / 4) * 8;
    case RGBA_ETC2_EAC_Format:
      return Math.floor((width + 3) / 4) * Math.floor((height + 3) / 4) * 16;
    // https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_astc/
    case RGBA_ASTC_4x4_Format:
      return Math.floor((width + 3) / 4) * Math.floor((height + 3) / 4) * 16;
    case RGBA_ASTC_5x4_Format:
      return Math.floor((width + 4) / 5) * Math.floor((height + 3) / 4) * 16;
    case RGBA_ASTC_5x5_Format:
      return Math.floor((width + 4) / 5) * Math.floor((height + 4) / 5) * 16;
    case RGBA_ASTC_6x5_Format:
      return Math.floor((width + 5) / 6) * Math.floor((height + 4) / 5) * 16;
    case RGBA_ASTC_6x6_Format:
      return Math.floor((width + 5) / 6) * Math.floor((height + 5) / 6) * 16;
    case RGBA_ASTC_8x5_Format:
      return Math.floor((width + 7) / 8) * Math.floor((height + 4) / 5) * 16;
    case RGBA_ASTC_8x6_Format:
      return Math.floor((width + 7) / 8) * Math.floor((height + 5) / 6) * 16;
    case RGBA_ASTC_8x8_Format:
      return Math.floor((width + 7) / 8) * Math.floor((height + 7) / 8) * 16;
    case RGBA_ASTC_10x5_Format:
      return Math.floor((width + 9) / 10) * Math.floor((height + 4) / 5) * 16;
    case RGBA_ASTC_10x6_Format:
      return Math.floor((width + 9) / 10) * Math.floor((height + 5) / 6) * 16;
    case RGBA_ASTC_10x8_Format:
      return Math.floor((width + 9) / 10) * Math.floor((height + 7) / 8) * 16;
    case RGBA_ASTC_10x10_Format:
      return Math.floor((width + 9) / 10) * Math.floor((height + 9) / 10) * 16;
    case RGBA_ASTC_12x10_Format:
      return Math.floor((width + 11) / 12) * Math.floor((height + 9) / 10) * 16;
    case RGBA_ASTC_12x12_Format:
      return Math.floor((width + 11) / 12) * Math.floor((height + 11) / 12) * 16;
    // https://registry.khronos.org/webgl/extensions/EXT_texture_compression_bptc/
    case RGBA_BPTC_Format:
    case RGB_BPTC_SIGNED_Format:
    case RGB_BPTC_UNSIGNED_Format:
      return Math.ceil(width / 4) * Math.ceil(height / 4) * 16;
    // https://registry.khronos.org/webgl/extensions/EXT_texture_compression_rgtc/
    case RED_RGTC1_Format:
    case SIGNED_RED_RGTC1_Format:
      return Math.ceil(width / 4) * Math.ceil(height / 4) * 8;
    case RED_GREEN_RGTC2_Format:
    case SIGNED_RED_GREEN_RGTC2_Format:
      return Math.ceil(width / 4) * Math.ceil(height / 4) * 16;
  }
  throw new Error(
    `Unable to determine texture byte length for ${format} format.`
  );
}
function getTextureTypeByteLength(type) {
  switch (type) {
    case UnsignedByteType:
    case ByteType:
      return { byteLength: 1, components: 1 };
    case UnsignedShortType:
    case ShortType:
    case HalfFloatType:
      return { byteLength: 2, components: 1 };
    case UnsignedShort4444Type:
    case UnsignedShort5551Type:
      return { byteLength: 2, components: 4 };
    case UnsignedIntType:
    case IntType:
    case FloatType:
      return { byteLength: 4, components: 1 };
    case UnsignedInt5999Type:
      return { byteLength: 4, components: 3 };
  }
  throw new Error(`Unknown texture type ${type}.`);
}
if (typeof __THREE_DEVTOOLS__ !== "undefined") {
  __THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("register", { detail: {
    revision: REVISION
  } }));
}
if (typeof window !== "undefined") {
  if (window.__THREE__) {
    console.warn("WARNING: Multiple instances of Three.js being imported.");
  } else {
    window.__THREE__ = REVISION;
  }
}

// node_modules/three/build/three.module.js
function WebGLAnimation() {
  let context3 = null;
  let isAnimating = false;
  let animationLoop = null;
  let requestId = null;
  function onAnimationFrame(time, frame) {
    animationLoop(time, frame);
    requestId = context3.requestAnimationFrame(onAnimationFrame);
  }
  return {
    start: function() {
      if (isAnimating === true) return;
      if (animationLoop === null) return;
      requestId = context3.requestAnimationFrame(onAnimationFrame);
      isAnimating = true;
    },
    stop: function() {
      context3.cancelAnimationFrame(requestId);
      isAnimating = false;
    },
    setAnimationLoop: function(callback) {
      animationLoop = callback;
    },
    setContext: function(value) {
      context3 = value;
    }
  };
}
function WebGLAttributes(gl) {
  const buffers = /* @__PURE__ */ new WeakMap();
  function createBuffer(attribute, bufferType) {
    const array = attribute.array;
    const usage = attribute.usage;
    const size = array.byteLength;
    const buffer = gl.createBuffer();
    gl.bindBuffer(bufferType, buffer);
    gl.bufferData(bufferType, array, usage);
    attribute.onUploadCallback();
    let type;
    if (array instanceof Float32Array) {
      type = gl.FLOAT;
    } else if (array instanceof Uint16Array) {
      if (attribute.isFloat16BufferAttribute) {
        type = gl.HALF_FLOAT;
      } else {
        type = gl.UNSIGNED_SHORT;
      }
    } else if (array instanceof Int16Array) {
      type = gl.SHORT;
    } else if (array instanceof Uint32Array) {
      type = gl.UNSIGNED_INT;
    } else if (array instanceof Int32Array) {
      type = gl.INT;
    } else if (array instanceof Int8Array) {
      type = gl.BYTE;
    } else if (array instanceof Uint8Array) {
      type = gl.UNSIGNED_BYTE;
    } else if (array instanceof Uint8ClampedArray) {
      type = gl.UNSIGNED_BYTE;
    } else {
      throw new Error("THREE.WebGLAttributes: Unsupported buffer data format: " + array);
    }
    return {
      buffer,
      type,
      bytesPerElement: array.BYTES_PER_ELEMENT,
      version: attribute.version,
      size
    };
  }
  function updateBuffer(buffer, attribute, bufferType) {
    const array = attribute.array;
    const updateRanges = attribute.updateRanges;
    gl.bindBuffer(bufferType, buffer);
    if (updateRanges.length === 0) {
      gl.bufferSubData(bufferType, 0, array);
    } else {
      updateRanges.sort((a, b) => a.start - b.start);
      let mergeIndex = 0;
      for (let i = 1; i < updateRanges.length; i++) {
        const previousRange = updateRanges[mergeIndex];
        const range = updateRanges[i];
        if (range.start <= previousRange.start + previousRange.count + 1) {
          previousRange.count = Math.max(
            previousRange.count,
            range.start + range.count - previousRange.start
          );
        } else {
          ++mergeIndex;
          updateRanges[mergeIndex] = range;
        }
      }
      updateRanges.length = mergeIndex + 1;
      for (let i = 0, l = updateRanges.length; i < l; i++) {
        const range = updateRanges[i];
        gl.bufferSubData(
          bufferType,
          range.start * array.BYTES_PER_ELEMENT,
          array,
          range.start,
          range.count
        );
      }
      attribute.clearUpdateRanges();
    }
    attribute.onUploadCallback();
  }
  function get(attribute) {
    if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
    return buffers.get(attribute);
  }
  function remove(attribute) {
    if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
    const data = buffers.get(attribute);
    if (data) {
      gl.deleteBuffer(data.buffer);
      buffers.delete(attribute);
    }
  }
  function update(attribute, bufferType) {
    if (attribute.isInterleavedBufferAttribute) attribute = attribute.data;
    if (attribute.isGLBufferAttribute) {
      const cached = buffers.get(attribute);
      if (!cached || cached.version < attribute.version) {
        buffers.set(attribute, {
          buffer: attribute.buffer,
          type: attribute.type,
          bytesPerElement: attribute.elementSize,
          version: attribute.version
        });
      }
      return;
    }
    const data = buffers.get(attribute);
    if (data === void 0) {
      buffers.set(attribute, createBuffer(attribute, bufferType));
    } else if (data.version < attribute.version) {
      if (data.size !== attribute.array.byteLength) {
        throw new Error("THREE.WebGLAttributes: The size of the buffer attribute's array buffer does not match the original size. Resizing buffer attributes is not supported.");
      }
      updateBuffer(data.buffer, attribute, bufferType);
      data.version = attribute.version;
    }
  }
  return {
    get,
    remove,
    update
  };
}
var alphahash_fragment = "#ifdef USE_ALPHAHASH\n	if ( diffuseColor.a < getAlphaHashThreshold( vPosition ) ) discard;\n#endif";
var alphahash_pars_fragment = "#ifdef USE_ALPHAHASH\n	const float ALPHA_HASH_SCALE = 0.05;\n	float hash2D( vec2 value ) {\n		return fract( 1.0e4 * sin( 17.0 * value.x + 0.1 * value.y ) * ( 0.1 + abs( sin( 13.0 * value.y + value.x ) ) ) );\n	}\n	float hash3D( vec3 value ) {\n		return hash2D( vec2( hash2D( value.xy ), value.z ) );\n	}\n	float getAlphaHashThreshold( vec3 position ) {\n		float maxDeriv = max(\n			length( dFdx( position.xyz ) ),\n			length( dFdy( position.xyz ) )\n		);\n		float pixScale = 1.0 / ( ALPHA_HASH_SCALE * maxDeriv );\n		vec2 pixScales = vec2(\n			exp2( floor( log2( pixScale ) ) ),\n			exp2( ceil( log2( pixScale ) ) )\n		);\n		vec2 alpha = vec2(\n			hash3D( floor( pixScales.x * position.xyz ) ),\n			hash3D( floor( pixScales.y * position.xyz ) )\n		);\n		float lerpFactor = fract( log2( pixScale ) );\n		float x = ( 1.0 - lerpFactor ) * alpha.x + lerpFactor * alpha.y;\n		float a = min( lerpFactor, 1.0 - lerpFactor );\n		vec3 cases = vec3(\n			x * x / ( 2.0 * a * ( 1.0 - a ) ),\n			( x - 0.5 * a ) / ( 1.0 - a ),\n			1.0 - ( ( 1.0 - x ) * ( 1.0 - x ) / ( 2.0 * a * ( 1.0 - a ) ) )\n		);\n		float threshold = ( x < ( 1.0 - a ) )\n			? ( ( x < a ) ? cases.x : cases.y )\n			: cases.z;\n		return clamp( threshold , 1.0e-6, 1.0 );\n	}\n#endif";
var alphamap_fragment = "#ifdef USE_ALPHAMAP\n	diffuseColor.a *= texture2D( alphaMap, vAlphaMapUv ).g;\n#endif";
var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n	uniform sampler2D alphaMap;\n#endif";
var alphatest_fragment = "#ifdef USE_ALPHATEST\n	#ifdef ALPHA_TO_COVERAGE\n	diffuseColor.a = smoothstep( alphaTest, alphaTest + fwidth( diffuseColor.a ), diffuseColor.a );\n	if ( diffuseColor.a == 0.0 ) discard;\n	#else\n	if ( diffuseColor.a < alphaTest ) discard;\n	#endif\n#endif";
var alphatest_pars_fragment = "#ifdef USE_ALPHATEST\n	uniform float alphaTest;\n#endif";
var aomap_fragment = "#ifdef USE_AOMAP\n	float ambientOcclusion = ( texture2D( aoMap, vAoMapUv ).r - 1.0 ) * aoMapIntensity + 1.0;\n	reflectedLight.indirectDiffuse *= ambientOcclusion;\n	#if defined( USE_CLEARCOAT ) \n		clearcoatSpecularIndirect *= ambientOcclusion;\n	#endif\n	#if defined( USE_SHEEN ) \n		sheenSpecularIndirect *= ambientOcclusion;\n	#endif\n	#if defined( USE_ENVMAP ) && defined( STANDARD )\n		float dotNV = saturate( dot( geometryNormal, geometryViewDir ) );\n		reflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.roughness );\n	#endif\n#endif";
var aomap_pars_fragment = "#ifdef USE_AOMAP\n	uniform sampler2D aoMap;\n	uniform float aoMapIntensity;\n#endif";
var batching_pars_vertex = "#ifdef USE_BATCHING\n	#if ! defined( GL_ANGLE_multi_draw )\n	#define gl_DrawID _gl_DrawID\n	uniform int _gl_DrawID;\n	#endif\n	uniform highp sampler2D batchingTexture;\n	uniform highp usampler2D batchingIdTexture;\n	mat4 getBatchingMatrix( const in float i ) {\n		int size = textureSize( batchingTexture, 0 ).x;\n		int j = int( i ) * 4;\n		int x = j % size;\n		int y = j / size;\n		vec4 v1 = texelFetch( batchingTexture, ivec2( x, y ), 0 );\n		vec4 v2 = texelFetch( batchingTexture, ivec2( x + 1, y ), 0 );\n		vec4 v3 = texelFetch( batchingTexture, ivec2( x + 2, y ), 0 );\n		vec4 v4 = texelFetch( batchingTexture, ivec2( x + 3, y ), 0 );\n		return mat4( v1, v2, v3, v4 );\n	}\n	float getIndirectIndex( const in int i ) {\n		int size = textureSize( batchingIdTexture, 0 ).x;\n		int x = i % size;\n		int y = i / size;\n		return float( texelFetch( batchingIdTexture, ivec2( x, y ), 0 ).r );\n	}\n#endif\n#ifdef USE_BATCHING_COLOR\n	uniform sampler2D batchingColorTexture;\n	vec3 getBatchingColor( const in float i ) {\n		int size = textureSize( batchingColorTexture, 0 ).x;\n		int j = int( i );\n		int x = j % size;\n		int y = j / size;\n		return texelFetch( batchingColorTexture, ivec2( x, y ), 0 ).rgb;\n	}\n#endif";
var batching_vertex = "#ifdef USE_BATCHING\n	mat4 batchingMatrix = getBatchingMatrix( getIndirectIndex( gl_DrawID ) );\n#endif";
var begin_vertex = "vec3 transformed = vec3( position );\n#ifdef USE_ALPHAHASH\n	vPosition = vec3( position );\n#endif";
var beginnormal_vertex = "vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n	vec3 objectTangent = vec3( tangent.xyz );\n#endif";
var bsdfs = "float G_BlinnPhong_Implicit( ) {\n	return 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n	return RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_BlinnPhong( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float shininess ) {\n	vec3 halfDir = normalize( lightDir + viewDir );\n	float dotNH = saturate( dot( normal, halfDir ) );\n	float dotVH = saturate( dot( viewDir, halfDir ) );\n	vec3 F = F_Schlick( specularColor, 1.0, dotVH );\n	float G = G_BlinnPhong_Implicit( );\n	float D = D_BlinnPhong( shininess, dotNH );\n	return F * ( G * D );\n} // validated";
var iridescence_fragment = "#ifdef USE_IRIDESCENCE\n	const mat3 XYZ_TO_REC709 = mat3(\n		 3.2404542, -0.9692660,  0.0556434,\n		-1.5371385,  1.8760108, -0.2040259,\n		-0.4985314,  0.0415560,  1.0572252\n	);\n	vec3 Fresnel0ToIor( vec3 fresnel0 ) {\n		vec3 sqrtF0 = sqrt( fresnel0 );\n		return ( vec3( 1.0 ) + sqrtF0 ) / ( vec3( 1.0 ) - sqrtF0 );\n	}\n	vec3 IorToFresnel0( vec3 transmittedIor, float incidentIor ) {\n		return pow2( ( transmittedIor - vec3( incidentIor ) ) / ( transmittedIor + vec3( incidentIor ) ) );\n	}\n	float IorToFresnel0( float transmittedIor, float incidentIor ) {\n		return pow2( ( transmittedIor - incidentIor ) / ( transmittedIor + incidentIor ));\n	}\n	vec3 evalSensitivity( float OPD, vec3 shift ) {\n		float phase = 2.0 * PI * OPD * 1.0e-9;\n		vec3 val = vec3( 5.4856e-13, 4.4201e-13, 5.2481e-13 );\n		vec3 pos = vec3( 1.6810e+06, 1.7953e+06, 2.2084e+06 );\n		vec3 var = vec3( 4.3278e+09, 9.3046e+09, 6.6121e+09 );\n		vec3 xyz = val * sqrt( 2.0 * PI * var ) * cos( pos * phase + shift ) * exp( - pow2( phase ) * var );\n		xyz.x += 9.7470e-14 * sqrt( 2.0 * PI * 4.5282e+09 ) * cos( 2.2399e+06 * phase + shift[ 0 ] ) * exp( - 4.5282e+09 * pow2( phase ) );\n		xyz /= 1.0685e-7;\n		vec3 rgb = XYZ_TO_REC709 * xyz;\n		return rgb;\n	}\n	vec3 evalIridescence( float outsideIOR, float eta2, float cosTheta1, float thinFilmThickness, vec3 baseF0 ) {\n		vec3 I;\n		float iridescenceIOR = mix( outsideIOR, eta2, smoothstep( 0.0, 0.03, thinFilmThickness ) );\n		float sinTheta2Sq = pow2( outsideIOR / iridescenceIOR ) * ( 1.0 - pow2( cosTheta1 ) );\n		float cosTheta2Sq = 1.0 - sinTheta2Sq;\n		if ( cosTheta2Sq < 0.0 ) {\n			return vec3( 1.0 );\n		}\n		float cosTheta2 = sqrt( cosTheta2Sq );\n		float R0 = IorToFresnel0( iridescenceIOR, outsideIOR );\n		float R12 = F_Schlick( R0, 1.0, cosTheta1 );\n		float T121 = 1.0 - R12;\n		float phi12 = 0.0;\n		if ( iridescenceIOR < outsideIOR ) phi12 = PI;\n		float phi21 = PI - phi12;\n		vec3 baseIOR = Fresnel0ToIor( clamp( baseF0, 0.0, 0.9999 ) );		vec3 R1 = IorToFresnel0( baseIOR, iridescenceIOR );\n		vec3 R23 = F_Schlick( R1, 1.0, cosTheta2 );\n		vec3 phi23 = vec3( 0.0 );\n		if ( baseIOR[ 0 ] < iridescenceIOR ) phi23[ 0 ] = PI;\n		if ( baseIOR[ 1 ] < iridescenceIOR ) phi23[ 1 ] = PI;\n		if ( baseIOR[ 2 ] < iridescenceIOR ) phi23[ 2 ] = PI;\n		float OPD = 2.0 * iridescenceIOR * thinFilmThickness * cosTheta2;\n		vec3 phi = vec3( phi21 ) + phi23;\n		vec3 R123 = clamp( R12 * R23, 1e-5, 0.9999 );\n		vec3 r123 = sqrt( R123 );\n		vec3 Rs = pow2( T121 ) * R23 / ( vec3( 1.0 ) - R123 );\n		vec3 C0 = R12 + Rs;\n		I = C0;\n		vec3 Cm = Rs - T121;\n		for ( int m = 1; m <= 2; ++ m ) {\n			Cm *= r123;\n			vec3 Sm = 2.0 * evalSensitivity( float( m ) * OPD, float( m ) * phi );\n			I += Cm * Sm;\n		}\n		return max( I, vec3( 0.0 ) );\n	}\n#endif";
var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n	uniform sampler2D bumpMap;\n	uniform float bumpScale;\n	vec2 dHdxy_fwd() {\n		vec2 dSTdx = dFdx( vBumpMapUv );\n		vec2 dSTdy = dFdy( vBumpMapUv );\n		float Hll = bumpScale * texture2D( bumpMap, vBumpMapUv ).x;\n		float dBx = bumpScale * texture2D( bumpMap, vBumpMapUv + dSTdx ).x - Hll;\n		float dBy = bumpScale * texture2D( bumpMap, vBumpMapUv + dSTdy ).x - Hll;\n		return vec2( dBx, dBy );\n	}\n	vec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy, float faceDirection ) {\n		vec3 vSigmaX = normalize( dFdx( surf_pos.xyz ) );\n		vec3 vSigmaY = normalize( dFdy( surf_pos.xyz ) );\n		vec3 vN = surf_norm;\n		vec3 R1 = cross( vSigmaY, vN );\n		vec3 R2 = cross( vN, vSigmaX );\n		float fDet = dot( vSigmaX, R1 ) * faceDirection;\n		vec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n		return normalize( abs( fDet ) * surf_norm - vGrad );\n	}\n#endif";
var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n	vec4 plane;\n	#ifdef ALPHA_TO_COVERAGE\n		float distanceToPlane, distanceGradient;\n		float clipOpacity = 1.0;\n		#pragma unroll_loop_start\n		for ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n			plane = clippingPlanes[ i ];\n			distanceToPlane = - dot( vClipPosition, plane.xyz ) + plane.w;\n			distanceGradient = fwidth( distanceToPlane ) / 2.0;\n			clipOpacity *= smoothstep( - distanceGradient, distanceGradient, distanceToPlane );\n			if ( clipOpacity == 0.0 ) discard;\n		}\n		#pragma unroll_loop_end\n		#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n			float unionClipOpacity = 1.0;\n			#pragma unroll_loop_start\n			for ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n				plane = clippingPlanes[ i ];\n				distanceToPlane = - dot( vClipPosition, plane.xyz ) + plane.w;\n				distanceGradient = fwidth( distanceToPlane ) / 2.0;\n				unionClipOpacity *= 1.0 - smoothstep( - distanceGradient, distanceGradient, distanceToPlane );\n			}\n			#pragma unroll_loop_end\n			clipOpacity *= 1.0 - unionClipOpacity;\n		#endif\n		diffuseColor.a *= clipOpacity;\n		if ( diffuseColor.a == 0.0 ) discard;\n	#else\n		#pragma unroll_loop_start\n		for ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n			plane = clippingPlanes[ i ];\n			if ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n		}\n		#pragma unroll_loop_end\n		#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n			bool clipped = true;\n			#pragma unroll_loop_start\n			for ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n				plane = clippingPlanes[ i ];\n				clipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n			}\n			#pragma unroll_loop_end\n			if ( clipped ) discard;\n		#endif\n	#endif\n#endif";
var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n	varying vec3 vClipPosition;\n	uniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif";
var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0\n	varying vec3 vClipPosition;\n#endif";
var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0\n	vClipPosition = - mvPosition.xyz;\n#endif";
var color_fragment = "#if defined( USE_COLOR_ALPHA )\n	diffuseColor *= vColor;\n#elif defined( USE_COLOR )\n	diffuseColor.rgb *= vColor;\n#endif";
var color_pars_fragment = "#if defined( USE_COLOR_ALPHA )\n	varying vec4 vColor;\n#elif defined( USE_COLOR )\n	varying vec3 vColor;\n#endif";
var color_pars_vertex = "#if defined( USE_COLOR_ALPHA )\n	varying vec4 vColor;\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR ) || defined( USE_BATCHING_COLOR )\n	varying vec3 vColor;\n#endif";
var color_vertex = "#if defined( USE_COLOR_ALPHA )\n	vColor = vec4( 1.0 );\n#elif defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR ) || defined( USE_BATCHING_COLOR )\n	vColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n	vColor *= color;\n#endif\n#ifdef USE_INSTANCING_COLOR\n	vColor.xyz *= instanceColor.xyz;\n#endif\n#ifdef USE_BATCHING_COLOR\n	vec3 batchingColor = getBatchingColor( getIndirectIndex( gl_DrawID ) );\n	vColor.xyz *= batchingColor.xyz;\n#endif";
var common = "#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement( a ) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nvec3 pow2( const in vec3 x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat max3( const in vec3 v ) { return max( max( v.x, v.y ), v.z ); }\nfloat average( const in vec3 v ) { return dot( v, vec3( 0.3333333 ) ); }\nhighp float rand( const in vec2 uv ) {\n	const highp float a = 12.9898, b = 78.233, c = 43758.5453;\n	highp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n	return fract( sin( sn ) * c );\n}\n#ifdef HIGH_PRECISION\n	float precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n	float precisionSafeLength( vec3 v ) {\n		float maxComponent = max3( abs( v ) );\n		return length( v / maxComponent ) * maxComponent;\n	}\n#endif\nstruct IncidentLight {\n	vec3 color;\n	vec3 direction;\n	bool visible;\n};\nstruct ReflectedLight {\n	vec3 directDiffuse;\n	vec3 directSpecular;\n	vec3 indirectDiffuse;\n	vec3 indirectSpecular;\n};\n#ifdef USE_ALPHAHASH\n	varying vec3 vPosition;\n#endif\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n	return normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n	return normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nmat3 transposeMat3( const in mat3 m ) {\n	mat3 tmp;\n	tmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n	tmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n	tmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n	return tmp;\n}\nbool isPerspectiveMatrix( mat4 m ) {\n	return m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n	float u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n	float v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n	return vec2( u, v );\n}\nvec3 BRDF_Lambert( const in vec3 diffuseColor ) {\n	return RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 f0, const in float f90, const in float dotVH ) {\n	float fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n	return f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n}\nfloat F_Schlick( const in float f0, const in float f90, const in float dotVH ) {\n	float fresnel = exp2( ( - 5.55473 * dotVH - 6.98316 ) * dotVH );\n	return f0 * ( 1.0 - fresnel ) + ( f90 * fresnel );\n} // validated";
var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n	#define cubeUV_minMipLevel 4.0\n	#define cubeUV_minTileSize 16.0\n	float getFace( vec3 direction ) {\n		vec3 absDirection = abs( direction );\n		float face = - 1.0;\n		if ( absDirection.x > absDirection.z ) {\n			if ( absDirection.x > absDirection.y )\n				face = direction.x > 0.0 ? 0.0 : 3.0;\n			else\n				face = direction.y > 0.0 ? 1.0 : 4.0;\n		} else {\n			if ( absDirection.z > absDirection.y )\n				face = direction.z > 0.0 ? 2.0 : 5.0;\n			else\n				face = direction.y > 0.0 ? 1.0 : 4.0;\n		}\n		return face;\n	}\n	vec2 getUV( vec3 direction, float face ) {\n		vec2 uv;\n		if ( face == 0.0 ) {\n			uv = vec2( direction.z, direction.y ) / abs( direction.x );\n		} else if ( face == 1.0 ) {\n			uv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n		} else if ( face == 2.0 ) {\n			uv = vec2( - direction.x, direction.y ) / abs( direction.z );\n		} else if ( face == 3.0 ) {\n			uv = vec2( - direction.z, direction.y ) / abs( direction.x );\n		} else if ( face == 4.0 ) {\n			uv = vec2( - direction.x, direction.z ) / abs( direction.y );\n		} else {\n			uv = vec2( direction.x, direction.y ) / abs( direction.z );\n		}\n		return 0.5 * ( uv + 1.0 );\n	}\n	vec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n		float face = getFace( direction );\n		float filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n		mipInt = max( mipInt, cubeUV_minMipLevel );\n		float faceSize = exp2( mipInt );\n		highp vec2 uv = getUV( direction, face ) * ( faceSize - 2.0 ) + 1.0;\n		if ( face > 2.0 ) {\n			uv.y += faceSize;\n			face -= 3.0;\n		}\n		uv.x += face * faceSize;\n		uv.x += filterInt * 3.0 * cubeUV_minTileSize;\n		uv.y += 4.0 * ( exp2( CUBEUV_MAX_MIP ) - faceSize );\n		uv.x *= CUBEUV_TEXEL_WIDTH;\n		uv.y *= CUBEUV_TEXEL_HEIGHT;\n		#ifdef texture2DGradEXT\n			return texture2DGradEXT( envMap, uv, vec2( 0.0 ), vec2( 0.0 ) ).rgb;\n		#else\n			return texture2D( envMap, uv ).rgb;\n		#endif\n	}\n	#define cubeUV_r0 1.0\n	#define cubeUV_m0 - 2.0\n	#define cubeUV_r1 0.8\n	#define cubeUV_m1 - 1.0\n	#define cubeUV_r4 0.4\n	#define cubeUV_m4 2.0\n	#define cubeUV_r5 0.305\n	#define cubeUV_m5 3.0\n	#define cubeUV_r6 0.21\n	#define cubeUV_m6 4.0\n	float roughnessToMip( float roughness ) {\n		float mip = 0.0;\n		if ( roughness >= cubeUV_r1 ) {\n			mip = ( cubeUV_r0 - roughness ) * ( cubeUV_m1 - cubeUV_m0 ) / ( cubeUV_r0 - cubeUV_r1 ) + cubeUV_m0;\n		} else if ( roughness >= cubeUV_r4 ) {\n			mip = ( cubeUV_r1 - roughness ) * ( cubeUV_m4 - cubeUV_m1 ) / ( cubeUV_r1 - cubeUV_r4 ) + cubeUV_m1;\n		} else if ( roughness >= cubeUV_r5 ) {\n			mip = ( cubeUV_r4 - roughness ) * ( cubeUV_m5 - cubeUV_m4 ) / ( cubeUV_r4 - cubeUV_r5 ) + cubeUV_m4;\n		} else if ( roughness >= cubeUV_r6 ) {\n			mip = ( cubeUV_r5 - roughness ) * ( cubeUV_m6 - cubeUV_m5 ) / ( cubeUV_r5 - cubeUV_r6 ) + cubeUV_m5;\n		} else {\n			mip = - 2.0 * log2( 1.16 * roughness );		}\n		return mip;\n	}\n	vec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n		float mip = clamp( roughnessToMip( roughness ), cubeUV_m0, CUBEUV_MAX_MIP );\n		float mipF = fract( mip );\n		float mipInt = floor( mip );\n		vec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n		if ( mipF == 0.0 ) {\n			return vec4( color0, 1.0 );\n		} else {\n			vec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n			return vec4( mix( color0, color1, mipF ), 1.0 );\n		}\n	}\n#endif";
var defaultnormal_vertex = "vec3 transformedNormal = objectNormal;\n#ifdef USE_TANGENT\n	vec3 transformedTangent = objectTangent;\n#endif\n#ifdef USE_BATCHING\n	mat3 bm = mat3( batchingMatrix );\n	transformedNormal /= vec3( dot( bm[ 0 ], bm[ 0 ] ), dot( bm[ 1 ], bm[ 1 ] ), dot( bm[ 2 ], bm[ 2 ] ) );\n	transformedNormal = bm * transformedNormal;\n	#ifdef USE_TANGENT\n		transformedTangent = bm * transformedTangent;\n	#endif\n#endif\n#ifdef USE_INSTANCING\n	mat3 im = mat3( instanceMatrix );\n	transformedNormal /= vec3( dot( im[ 0 ], im[ 0 ] ), dot( im[ 1 ], im[ 1 ] ), dot( im[ 2 ], im[ 2 ] ) );\n	transformedNormal = im * transformedNormal;\n	#ifdef USE_TANGENT\n		transformedTangent = im * transformedTangent;\n	#endif\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n	transformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n	transformedTangent = ( modelViewMatrix * vec4( transformedTangent, 0.0 ) ).xyz;\n	#ifdef FLIP_SIDED\n		transformedTangent = - transformedTangent;\n	#endif\n#endif";
var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n	uniform sampler2D displacementMap;\n	uniform float displacementScale;\n	uniform float displacementBias;\n#endif";
var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n	transformed += normalize( objectNormal ) * ( texture2D( displacementMap, vDisplacementMapUv ).x * displacementScale + displacementBias );\n#endif";
var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n	vec4 emissiveColor = texture2D( emissiveMap, vEmissiveMapUv );\n	#ifdef DECODE_VIDEO_TEXTURE_EMISSIVE\n		emissiveColor = sRGBTransferEOTF( emissiveColor );\n	#endif\n	totalEmissiveRadiance *= emissiveColor.rgb;\n#endif";
var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n	uniform sampler2D emissiveMap;\n#endif";
var colorspace_fragment = "gl_FragColor = linearToOutputTexel( gl_FragColor );";
var colorspace_pars_fragment = "vec4 LinearTransferOETF( in vec4 value ) {\n	return value;\n}\nvec4 sRGBTransferEOTF( in vec4 value ) {\n	return vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 sRGBTransferOETF( in vec4 value ) {\n	return vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}";
var envmap_fragment = "#ifdef USE_ENVMAP\n	#ifdef ENV_WORLDPOS\n		vec3 cameraToFrag;\n		if ( isOrthographic ) {\n			cameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n		} else {\n			cameraToFrag = normalize( vWorldPosition - cameraPosition );\n		}\n		vec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n		#ifdef ENVMAP_MODE_REFLECTION\n			vec3 reflectVec = reflect( cameraToFrag, worldNormal );\n		#else\n			vec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n		#endif\n	#else\n		vec3 reflectVec = vReflect;\n	#endif\n	#ifdef ENVMAP_TYPE_CUBE\n		vec4 envColor = textureCube( envMap, envMapRotation * vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n	#else\n		vec4 envColor = vec4( 0.0 );\n	#endif\n	#ifdef ENVMAP_BLENDING_MULTIPLY\n		outgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n	#elif defined( ENVMAP_BLENDING_MIX )\n		outgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n	#elif defined( ENVMAP_BLENDING_ADD )\n		outgoingLight += envColor.xyz * specularStrength * reflectivity;\n	#endif\n#endif";
var envmap_common_pars_fragment = "#ifdef USE_ENVMAP\n	uniform float envMapIntensity;\n	uniform float flipEnvMap;\n	uniform mat3 envMapRotation;\n	#ifdef ENVMAP_TYPE_CUBE\n		uniform samplerCube envMap;\n	#else\n		uniform sampler2D envMap;\n	#endif\n	\n#endif";
var envmap_pars_fragment = "#ifdef USE_ENVMAP\n	uniform float reflectivity;\n	#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n		#define ENV_WORLDPOS\n	#endif\n	#ifdef ENV_WORLDPOS\n		varying vec3 vWorldPosition;\n		uniform float refractionRatio;\n	#else\n		varying vec3 vReflect;\n	#endif\n#endif";
var envmap_pars_vertex = "#ifdef USE_ENVMAP\n	#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( LAMBERT )\n		#define ENV_WORLDPOS\n	#endif\n	#ifdef ENV_WORLDPOS\n		\n		varying vec3 vWorldPosition;\n	#else\n		varying vec3 vReflect;\n		uniform float refractionRatio;\n	#endif\n#endif";
var envmap_vertex = "#ifdef USE_ENVMAP\n	#ifdef ENV_WORLDPOS\n		vWorldPosition = worldPosition.xyz;\n	#else\n		vec3 cameraToVertex;\n		if ( isOrthographic ) {\n			cameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n		} else {\n			cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n		}\n		vec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n		#ifdef ENVMAP_MODE_REFLECTION\n			vReflect = reflect( cameraToVertex, worldNormal );\n		#else\n			vReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n		#endif\n	#endif\n#endif";
var fog_vertex = "#ifdef USE_FOG\n	vFogDepth = - mvPosition.z;\n#endif";
var fog_pars_vertex = "#ifdef USE_FOG\n	varying float vFogDepth;\n#endif";
var fog_fragment = "#ifdef USE_FOG\n	#ifdef FOG_EXP2\n		float fogFactor = 1.0 - exp( - fogDensity * fogDensity * vFogDepth * vFogDepth );\n	#else\n		float fogFactor = smoothstep( fogNear, fogFar, vFogDepth );\n	#endif\n	gl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif";
var fog_pars_fragment = "#ifdef USE_FOG\n	uniform vec3 fogColor;\n	varying float vFogDepth;\n	#ifdef FOG_EXP2\n		uniform float fogDensity;\n	#else\n		uniform float fogNear;\n		uniform float fogFar;\n	#endif\n#endif";
var gradientmap_pars_fragment = "#ifdef USE_GRADIENTMAP\n	uniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n	float dotNL = dot( normal, lightDirection );\n	vec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n	#ifdef USE_GRADIENTMAP\n		return vec3( texture2D( gradientMap, coord ).r );\n	#else\n		vec2 fw = fwidth( coord ) * 0.5;\n		return mix( vec3( 0.7 ), vec3( 1.0 ), smoothstep( 0.7 - fw.x, 0.7 + fw.x, coord.x ) );\n	#endif\n}";
var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n	uniform sampler2D lightMap;\n	uniform float lightMapIntensity;\n#endif";
var lights_lambert_fragment = "LambertMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularStrength = specularStrength;";
var lights_lambert_pars_fragment = "varying vec3 vViewPosition;\nstruct LambertMaterial {\n	vec3 diffuseColor;\n	float specularStrength;\n};\nvoid RE_Direct_Lambert( const in IncidentLight directLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n	float dotNL = saturate( dot( geometryNormal, directLight.direction ) );\n	vec3 irradiance = dotNL * directLight.color;\n	reflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Lambert( const in vec3 irradiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in LambertMaterial material, inout ReflectedLight reflectedLight ) {\n	reflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct				RE_Direct_Lambert\n#define RE_IndirectDiffuse		RE_IndirectDiffuse_Lambert";
var lights_pars_begin = "uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\n#if defined( USE_LIGHT_PROBES )\n	uniform vec3 lightProbe[ 9 ];\n#endif\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n	float x = normal.x, y = normal.y, z = normal.z;\n	vec3 result = shCoefficients[ 0 ] * 0.886227;\n	result += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n	result += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n	result += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n	result += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n	result += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n	result += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n	result += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n	result += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n	return result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in vec3 normal ) {\n	vec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n	vec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n	return irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n	vec3 irradiance = ambientLightColor;\n	return irradiance;\n}\nfloat getDistanceAttenuation( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n	float distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n	if ( cutoffDistance > 0.0 ) {\n		distanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n	}\n	return distanceFalloff;\n}\nfloat getSpotAttenuation( const in float coneCosine, const in float penumbraCosine, const in float angleCosine ) {\n	return smoothstep( coneCosine, penumbraCosine, angleCosine );\n}\n#if NUM_DIR_LIGHTS > 0\n	struct DirectionalLight {\n		vec3 direction;\n		vec3 color;\n	};\n	uniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n	void getDirectionalLightInfo( const in DirectionalLight directionalLight, out IncidentLight light ) {\n		light.color = directionalLight.color;\n		light.direction = directionalLight.direction;\n		light.visible = true;\n	}\n#endif\n#if NUM_POINT_LIGHTS > 0\n	struct PointLight {\n		vec3 position;\n		vec3 color;\n		float distance;\n		float decay;\n	};\n	uniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n	void getPointLightInfo( const in PointLight pointLight, const in vec3 geometryPosition, out IncidentLight light ) {\n		vec3 lVector = pointLight.position - geometryPosition;\n		light.direction = normalize( lVector );\n		float lightDistance = length( lVector );\n		light.color = pointLight.color;\n		light.color *= getDistanceAttenuation( lightDistance, pointLight.distance, pointLight.decay );\n		light.visible = ( light.color != vec3( 0.0 ) );\n	}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n	struct SpotLight {\n		vec3 position;\n		vec3 direction;\n		vec3 color;\n		float distance;\n		float decay;\n		float coneCos;\n		float penumbraCos;\n	};\n	uniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n	void getSpotLightInfo( const in SpotLight spotLight, const in vec3 geometryPosition, out IncidentLight light ) {\n		vec3 lVector = spotLight.position - geometryPosition;\n		light.direction = normalize( lVector );\n		float angleCos = dot( light.direction, spotLight.direction );\n		float spotAttenuation = getSpotAttenuation( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n		if ( spotAttenuation > 0.0 ) {\n			float lightDistance = length( lVector );\n			light.color = spotLight.color * spotAttenuation;\n			light.color *= getDistanceAttenuation( lightDistance, spotLight.distance, spotLight.decay );\n			light.visible = ( light.color != vec3( 0.0 ) );\n		} else {\n			light.color = vec3( 0.0 );\n			light.visible = false;\n		}\n	}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n	struct RectAreaLight {\n		vec3 color;\n		vec3 position;\n		vec3 halfWidth;\n		vec3 halfHeight;\n	};\n	uniform sampler2D ltc_1;	uniform sampler2D ltc_2;\n	uniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n	struct HemisphereLight {\n		vec3 direction;\n		vec3 skyColor;\n		vec3 groundColor;\n	};\n	uniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n	vec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in vec3 normal ) {\n		float dotNL = dot( normal, hemiLight.direction );\n		float hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n		vec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n		return irradiance;\n	}\n#endif";
var envmap_physical_pars_fragment = "#ifdef USE_ENVMAP\n	vec3 getIBLIrradiance( const in vec3 normal ) {\n		#ifdef ENVMAP_TYPE_CUBE_UV\n			vec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n			vec4 envMapColor = textureCubeUV( envMap, envMapRotation * worldNormal, 1.0 );\n			return PI * envMapColor.rgb * envMapIntensity;\n		#else\n			return vec3( 0.0 );\n		#endif\n	}\n	vec3 getIBLRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness ) {\n		#ifdef ENVMAP_TYPE_CUBE_UV\n			vec3 reflectVec = reflect( - viewDir, normal );\n			reflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n			reflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n			vec4 envMapColor = textureCubeUV( envMap, envMapRotation * reflectVec, roughness );\n			return envMapColor.rgb * envMapIntensity;\n		#else\n			return vec3( 0.0 );\n		#endif\n	}\n	#ifdef USE_ANISOTROPY\n		vec3 getIBLAnisotropyRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in vec3 bitangent, const in float anisotropy ) {\n			#ifdef ENVMAP_TYPE_CUBE_UV\n				vec3 bentNormal = cross( bitangent, viewDir );\n				bentNormal = normalize( cross( bentNormal, bitangent ) );\n				bentNormal = normalize( mix( bentNormal, normal, pow2( pow2( 1.0 - anisotropy * ( 1.0 - roughness ) ) ) ) );\n				return getIBLRadiance( viewDir, bentNormal, roughness );\n			#else\n				return vec3( 0.0 );\n			#endif\n		}\n	#endif\n#endif";
var lights_toon_fragment = "ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;";
var lights_toon_pars_fragment = "varying vec3 vViewPosition;\nstruct ToonMaterial {\n	vec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n	vec3 irradiance = getGradientIrradiance( geometryNormal, directLight.direction ) * directLight.color;\n	reflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n	reflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct				RE_Direct_Toon\n#define RE_IndirectDiffuse		RE_IndirectDiffuse_Toon";
var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;";
var lights_phong_pars_fragment = "varying vec3 vViewPosition;\nstruct BlinnPhongMaterial {\n	vec3 diffuseColor;\n	vec3 specularColor;\n	float specularShininess;\n	float specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n	float dotNL = saturate( dot( geometryNormal, directLight.direction ) );\n	vec3 irradiance = dotNL * directLight.color;\n	reflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n	reflectedLight.directSpecular += irradiance * BRDF_BlinnPhong( directLight.direction, geometryViewDir, geometryNormal, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n	reflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\n#define RE_Direct				RE_Direct_BlinnPhong\n#define RE_IndirectDiffuse		RE_IndirectDiffuse_BlinnPhong";
var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( nonPerturbedNormal ) ), abs( dFdy( nonPerturbedNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.roughness = max( roughnessFactor, 0.0525 );material.roughness += geometryRoughness;\nmaterial.roughness = min( material.roughness, 1.0 );\n#ifdef IOR\n	material.ior = ior;\n	#ifdef USE_SPECULAR\n		float specularIntensityFactor = specularIntensity;\n		vec3 specularColorFactor = specularColor;\n		#ifdef USE_SPECULAR_COLORMAP\n			specularColorFactor *= texture2D( specularColorMap, vSpecularColorMapUv ).rgb;\n		#endif\n		#ifdef USE_SPECULAR_INTENSITYMAP\n			specularIntensityFactor *= texture2D( specularIntensityMap, vSpecularIntensityMapUv ).a;\n		#endif\n		material.specularF90 = mix( specularIntensityFactor, 1.0, metalnessFactor );\n	#else\n		float specularIntensityFactor = 1.0;\n		vec3 specularColorFactor = vec3( 1.0 );\n		material.specularF90 = 1.0;\n	#endif\n	material.specularColor = mix( min( pow2( ( material.ior - 1.0 ) / ( material.ior + 1.0 ) ) * specularColorFactor, vec3( 1.0 ) ) * specularIntensityFactor, diffuseColor.rgb, metalnessFactor );\n#else\n	material.specularColor = mix( vec3( 0.04 ), diffuseColor.rgb, metalnessFactor );\n	material.specularF90 = 1.0;\n#endif\n#ifdef USE_CLEARCOAT\n	material.clearcoat = clearcoat;\n	material.clearcoatRoughness = clearcoatRoughness;\n	material.clearcoatF0 = vec3( 0.04 );\n	material.clearcoatF90 = 1.0;\n	#ifdef USE_CLEARCOATMAP\n		material.clearcoat *= texture2D( clearcoatMap, vClearcoatMapUv ).x;\n	#endif\n	#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n		material.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vClearcoatRoughnessMapUv ).y;\n	#endif\n	material.clearcoat = saturate( material.clearcoat );	material.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n	material.clearcoatRoughness += geometryRoughness;\n	material.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_DISPERSION\n	material.dispersion = dispersion;\n#endif\n#ifdef USE_IRIDESCENCE\n	material.iridescence = iridescence;\n	material.iridescenceIOR = iridescenceIOR;\n	#ifdef USE_IRIDESCENCEMAP\n		material.iridescence *= texture2D( iridescenceMap, vIridescenceMapUv ).r;\n	#endif\n	#ifdef USE_IRIDESCENCE_THICKNESSMAP\n		material.iridescenceThickness = (iridescenceThicknessMaximum - iridescenceThicknessMinimum) * texture2D( iridescenceThicknessMap, vIridescenceThicknessMapUv ).g + iridescenceThicknessMinimum;\n	#else\n		material.iridescenceThickness = iridescenceThicknessMaximum;\n	#endif\n#endif\n#ifdef USE_SHEEN\n	material.sheenColor = sheenColor;\n	#ifdef USE_SHEEN_COLORMAP\n		material.sheenColor *= texture2D( sheenColorMap, vSheenColorMapUv ).rgb;\n	#endif\n	material.sheenRoughness = clamp( sheenRoughness, 0.07, 1.0 );\n	#ifdef USE_SHEEN_ROUGHNESSMAP\n		material.sheenRoughness *= texture2D( sheenRoughnessMap, vSheenRoughnessMapUv ).a;\n	#endif\n#endif\n#ifdef USE_ANISOTROPY\n	#ifdef USE_ANISOTROPYMAP\n		mat2 anisotropyMat = mat2( anisotropyVector.x, anisotropyVector.y, - anisotropyVector.y, anisotropyVector.x );\n		vec3 anisotropyPolar = texture2D( anisotropyMap, vAnisotropyMapUv ).rgb;\n		vec2 anisotropyV = anisotropyMat * normalize( 2.0 * anisotropyPolar.rg - vec2( 1.0 ) ) * anisotropyPolar.b;\n	#else\n		vec2 anisotropyV = anisotropyVector;\n	#endif\n	material.anisotropy = length( anisotropyV );\n	if( material.anisotropy == 0.0 ) {\n		anisotropyV = vec2( 1.0, 0.0 );\n	} else {\n		anisotropyV /= material.anisotropy;\n		material.anisotropy = saturate( material.anisotropy );\n	}\n	material.alphaT = mix( pow2( material.roughness ), 1.0, pow2( material.anisotropy ) );\n	material.anisotropyT = tbn[ 0 ] * anisotropyV.x + tbn[ 1 ] * anisotropyV.y;\n	material.anisotropyB = tbn[ 1 ] * anisotropyV.x - tbn[ 0 ] * anisotropyV.y;\n#endif";
var lights_physical_pars_fragment = "struct PhysicalMaterial {\n	vec3 diffuseColor;\n	float roughness;\n	vec3 specularColor;\n	float specularF90;\n	float dispersion;\n	#ifdef USE_CLEARCOAT\n		float clearcoat;\n		float clearcoatRoughness;\n		vec3 clearcoatF0;\n		float clearcoatF90;\n	#endif\n	#ifdef USE_IRIDESCENCE\n		float iridescence;\n		float iridescenceIOR;\n		float iridescenceThickness;\n		vec3 iridescenceFresnel;\n		vec3 iridescenceF0;\n	#endif\n	#ifdef USE_SHEEN\n		vec3 sheenColor;\n		float sheenRoughness;\n	#endif\n	#ifdef IOR\n		float ior;\n	#endif\n	#ifdef USE_TRANSMISSION\n		float transmission;\n		float transmissionAlpha;\n		float thickness;\n		float attenuationDistance;\n		vec3 attenuationColor;\n	#endif\n	#ifdef USE_ANISOTROPY\n		float anisotropy;\n		float alphaT;\n		vec3 anisotropyT;\n		vec3 anisotropyB;\n	#endif\n};\nvec3 clearcoatSpecularDirect = vec3( 0.0 );\nvec3 clearcoatSpecularIndirect = vec3( 0.0 );\nvec3 sheenSpecularDirect = vec3( 0.0 );\nvec3 sheenSpecularIndirect = vec3(0.0 );\nvec3 Schlick_to_F0( const in vec3 f, const in float f90, const in float dotVH ) {\n    float x = clamp( 1.0 - dotVH, 0.0, 1.0 );\n    float x2 = x * x;\n    float x5 = clamp( x * x2 * x2, 0.0, 0.9999 );\n    return ( f - vec3( f90 ) * x5 ) / ( 1.0 - x5 );\n}\nfloat V_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n	float a2 = pow2( alpha );\n	float gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n	float gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n	return 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n	float a2 = pow2( alpha );\n	float denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n	return RECIPROCAL_PI * a2 / pow2( denom );\n}\n#ifdef USE_ANISOTROPY\n	float V_GGX_SmithCorrelated_Anisotropic( const in float alphaT, const in float alphaB, const in float dotTV, const in float dotBV, const in float dotTL, const in float dotBL, const in float dotNV, const in float dotNL ) {\n		float gv = dotNL * length( vec3( alphaT * dotTV, alphaB * dotBV, dotNV ) );\n		float gl = dotNV * length( vec3( alphaT * dotTL, alphaB * dotBL, dotNL ) );\n		float v = 0.5 / ( gv + gl );\n		return saturate(v);\n	}\n	float D_GGX_Anisotropic( const in float alphaT, const in float alphaB, const in float dotNH, const in float dotTH, const in float dotBH ) {\n		float a2 = alphaT * alphaB;\n		highp vec3 v = vec3( alphaB * dotTH, alphaT * dotBH, a2 * dotNH );\n		highp float v2 = dot( v, v );\n		float w2 = a2 / v2;\n		return RECIPROCAL_PI * a2 * pow2 ( w2 );\n	}\n#endif\n#ifdef USE_CLEARCOAT\n	vec3 BRDF_GGX_Clearcoat( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in PhysicalMaterial material) {\n		vec3 f0 = material.clearcoatF0;\n		float f90 = material.clearcoatF90;\n		float roughness = material.clearcoatRoughness;\n		float alpha = pow2( roughness );\n		vec3 halfDir = normalize( lightDir + viewDir );\n		float dotNL = saturate( dot( normal, lightDir ) );\n		float dotNV = saturate( dot( normal, viewDir ) );\n		float dotNH = saturate( dot( normal, halfDir ) );\n		float dotVH = saturate( dot( viewDir, halfDir ) );\n		vec3 F = F_Schlick( f0, f90, dotVH );\n		float V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n		float D = D_GGX( alpha, dotNH );\n		return F * ( V * D );\n	}\n#endif\nvec3 BRDF_GGX( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, const in PhysicalMaterial material ) {\n	vec3 f0 = material.specularColor;\n	float f90 = material.specularF90;\n	float roughness = material.roughness;\n	float alpha = pow2( roughness );\n	vec3 halfDir = normalize( lightDir + viewDir );\n	float dotNL = saturate( dot( normal, lightDir ) );\n	float dotNV = saturate( dot( normal, viewDir ) );\n	float dotNH = saturate( dot( normal, halfDir ) );\n	float dotVH = saturate( dot( viewDir, halfDir ) );\n	vec3 F = F_Schlick( f0, f90, dotVH );\n	#ifdef USE_IRIDESCENCE\n		F = mix( F, material.iridescenceFresnel, material.iridescence );\n	#endif\n	#ifdef USE_ANISOTROPY\n		float dotTL = dot( material.anisotropyT, lightDir );\n		float dotTV = dot( material.anisotropyT, viewDir );\n		float dotTH = dot( material.anisotropyT, halfDir );\n		float dotBL = dot( material.anisotropyB, lightDir );\n		float dotBV = dot( material.anisotropyB, viewDir );\n		float dotBH = dot( material.anisotropyB, halfDir );\n		float V = V_GGX_SmithCorrelated_Anisotropic( material.alphaT, alpha, dotTV, dotBV, dotTL, dotBL, dotNV, dotNL );\n		float D = D_GGX_Anisotropic( material.alphaT, alpha, dotNH, dotTH, dotBH );\n	#else\n		float V = V_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n		float D = D_GGX( alpha, dotNH );\n	#endif\n	return F * ( V * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n	const float LUT_SIZE = 64.0;\n	const float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n	const float LUT_BIAS = 0.5 / LUT_SIZE;\n	float dotNV = saturate( dot( N, V ) );\n	vec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n	uv = uv * LUT_SCALE + LUT_BIAS;\n	return uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n	float l = length( f );\n	return max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n	float x = dot( v1, v2 );\n	float y = abs( x );\n	float a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n	float b = 3.4175940 + ( 4.1616724 + y ) * y;\n	float v = a / b;\n	float theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n	return cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n	vec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n	vec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n	vec3 lightNormal = cross( v1, v2 );\n	if( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n	vec3 T1, T2;\n	T1 = normalize( V - N * dot( V, N ) );\n	T2 = - cross( N, T1 );\n	mat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n	vec3 coords[ 4 ];\n	coords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n	coords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n	coords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n	coords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n	coords[ 0 ] = normalize( coords[ 0 ] );\n	coords[ 1 ] = normalize( coords[ 1 ] );\n	coords[ 2 ] = normalize( coords[ 2 ] );\n	coords[ 3 ] = normalize( coords[ 3 ] );\n	vec3 vectorFormFactor = vec3( 0.0 );\n	vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n	vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n	vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n	vectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n	float result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n	return vec3( result );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie( float roughness, float dotNH ) {\n	float alpha = pow2( roughness );\n	float invAlpha = 1.0 / alpha;\n	float cos2h = dotNH * dotNH;\n	float sin2h = max( 1.0 - cos2h, 0.0078125 );\n	return ( 2.0 + invAlpha ) * pow( sin2h, invAlpha * 0.5 ) / ( 2.0 * PI );\n}\nfloat V_Neubelt( float dotNV, float dotNL ) {\n	return saturate( 1.0 / ( 4.0 * ( dotNL + dotNV - dotNL * dotNV ) ) );\n}\nvec3 BRDF_Sheen( const in vec3 lightDir, const in vec3 viewDir, const in vec3 normal, vec3 sheenColor, const in float sheenRoughness ) {\n	vec3 halfDir = normalize( lightDir + viewDir );\n	float dotNL = saturate( dot( normal, lightDir ) );\n	float dotNV = saturate( dot( normal, viewDir ) );\n	float dotNH = saturate( dot( normal, halfDir ) );\n	float D = D_Charlie( sheenRoughness, dotNH );\n	float V = V_Neubelt( dotNV, dotNL );\n	return sheenColor * ( D * V );\n}\n#endif\nfloat IBLSheenBRDF( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n	float dotNV = saturate( dot( normal, viewDir ) );\n	float r2 = roughness * roughness;\n	float a = roughness < 0.25 ? -339.2 * r2 + 161.4 * roughness - 25.9 : -8.48 * r2 + 14.3 * roughness - 9.95;\n	float b = roughness < 0.25 ? 44.0 * r2 - 23.7 * roughness + 3.26 : 1.97 * r2 - 3.27 * roughness + 0.72;\n	float DG = exp( a * dotNV + b ) + ( roughness < 0.25 ? 0.0 : 0.1 * ( roughness - 0.25 ) );\n	return saturate( DG * RECIPROCAL_PI );\n}\nvec2 DFGApprox( const in vec3 normal, const in vec3 viewDir, const in float roughness ) {\n	float dotNV = saturate( dot( normal, viewDir ) );\n	const vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n	const vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n	vec4 r = roughness * c0 + c1;\n	float a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n	vec2 fab = vec2( - 1.04, 1.04 ) * a004 + r.zw;\n	return fab;\n}\nvec3 EnvironmentBRDF( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness ) {\n	vec2 fab = DFGApprox( normal, viewDir, roughness );\n	return specularColor * fab.x + specularF90 * fab.y;\n}\n#ifdef USE_IRIDESCENCE\nvoid computeMultiscatteringIridescence( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float iridescence, const in vec3 iridescenceF0, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#else\nvoid computeMultiscattering( const in vec3 normal, const in vec3 viewDir, const in vec3 specularColor, const in float specularF90, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n#endif\n	vec2 fab = DFGApprox( normal, viewDir, roughness );\n	#ifdef USE_IRIDESCENCE\n		vec3 Fr = mix( specularColor, iridescenceF0, iridescence );\n	#else\n		vec3 Fr = specularColor;\n	#endif\n	vec3 FssEss = Fr * fab.x + specularF90 * fab.y;\n	float Ess = fab.x + fab.y;\n	float Ems = 1.0 - Ess;\n	vec3 Favg = Fr + ( 1.0 - Fr ) * 0.047619;	vec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n	singleScatter += FssEss;\n	multiScatter += Fms * Ems;\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n	void RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n		vec3 normal = geometryNormal;\n		vec3 viewDir = geometryViewDir;\n		vec3 position = geometryPosition;\n		vec3 lightPos = rectAreaLight.position;\n		vec3 halfWidth = rectAreaLight.halfWidth;\n		vec3 halfHeight = rectAreaLight.halfHeight;\n		vec3 lightColor = rectAreaLight.color;\n		float roughness = material.roughness;\n		vec3 rectCoords[ 4 ];\n		rectCoords[ 0 ] = lightPos + halfWidth - halfHeight;		rectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n		rectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n		rectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n		vec2 uv = LTC_Uv( normal, viewDir, roughness );\n		vec4 t1 = texture2D( ltc_1, uv );\n		vec4 t2 = texture2D( ltc_2, uv );\n		mat3 mInv = mat3(\n			vec3( t1.x, 0, t1.y ),\n			vec3(    0, 1,    0 ),\n			vec3( t1.z, 0, t1.w )\n		);\n		vec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n		reflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n		reflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n	}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n	float dotNL = saturate( dot( geometryNormal, directLight.direction ) );\n	vec3 irradiance = dotNL * directLight.color;\n	#ifdef USE_CLEARCOAT\n		float dotNLcc = saturate( dot( geometryClearcoatNormal, directLight.direction ) );\n		vec3 ccIrradiance = dotNLcc * directLight.color;\n		clearcoatSpecularDirect += ccIrradiance * BRDF_GGX_Clearcoat( directLight.direction, geometryViewDir, geometryClearcoatNormal, material );\n	#endif\n	#ifdef USE_SHEEN\n		sheenSpecularDirect += irradiance * BRDF_Sheen( directLight.direction, geometryViewDir, geometryNormal, material.sheenColor, material.sheenRoughness );\n	#endif\n	reflectedLight.directSpecular += irradiance * BRDF_GGX( directLight.direction, geometryViewDir, geometryNormal, material );\n	reflectedLight.directDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n	reflectedLight.indirectDiffuse += irradiance * BRDF_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in vec3 geometryPosition, const in vec3 geometryNormal, const in vec3 geometryViewDir, const in vec3 geometryClearcoatNormal, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n	#ifdef USE_CLEARCOAT\n		clearcoatSpecularIndirect += clearcoatRadiance * EnvironmentBRDF( geometryClearcoatNormal, geometryViewDir, material.clearcoatF0, material.clearcoatF90, material.clearcoatRoughness );\n	#endif\n	#ifdef USE_SHEEN\n		sheenSpecularIndirect += irradiance * material.sheenColor * IBLSheenBRDF( geometryNormal, geometryViewDir, material.sheenRoughness );\n	#endif\n	vec3 singleScattering = vec3( 0.0 );\n	vec3 multiScattering = vec3( 0.0 );\n	vec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n	#ifdef USE_IRIDESCENCE\n		computeMultiscatteringIridescence( geometryNormal, geometryViewDir, material.specularColor, material.specularF90, material.iridescence, material.iridescenceFresnel, material.roughness, singleScattering, multiScattering );\n	#else\n		computeMultiscattering( geometryNormal, geometryViewDir, material.specularColor, material.specularF90, material.roughness, singleScattering, multiScattering );\n	#endif\n	vec3 totalScattering = singleScattering + multiScattering;\n	vec3 diffuse = material.diffuseColor * ( 1.0 - max( max( totalScattering.r, totalScattering.g ), totalScattering.b ) );\n	reflectedLight.indirectSpecular += radiance * singleScattering;\n	reflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n	reflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct				RE_Direct_Physical\n#define RE_Direct_RectArea		RE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse		RE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular		RE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n	return saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}";
var lights_fragment_begin = "\nvec3 geometryPosition = - vViewPosition;\nvec3 geometryNormal = normal;\nvec3 geometryViewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\nvec3 geometryClearcoatNormal = vec3( 0.0 );\n#ifdef USE_CLEARCOAT\n	geometryClearcoatNormal = clearcoatNormal;\n#endif\n#ifdef USE_IRIDESCENCE\n	float dotNVi = saturate( dot( normal, geometryViewDir ) );\n	if ( material.iridescenceThickness == 0.0 ) {\n		material.iridescence = 0.0;\n	} else {\n		material.iridescence = saturate( material.iridescence );\n	}\n	if ( material.iridescence > 0.0 ) {\n		material.iridescenceFresnel = evalIridescence( 1.0, material.iridescenceIOR, dotNVi, material.iridescenceThickness, material.specularColor );\n		material.iridescenceF0 = Schlick_to_F0( material.iridescenceFresnel, 1.0, dotNVi );\n	}\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n	PointLight pointLight;\n	#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n	PointLightShadow pointLightShadow;\n	#endif\n	#pragma unroll_loop_start\n	for ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n		pointLight = pointLights[ i ];\n		getPointLightInfo( pointLight, geometryPosition, directLight );\n		#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n		pointLightShadow = pointLightShadows[ i ];\n		directLight.color *= ( directLight.visible && receiveShadow ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowIntensity, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n		#endif\n		RE_Direct( directLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n	}\n	#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n	SpotLight spotLight;\n	vec4 spotColor;\n	vec3 spotLightCoord;\n	bool inSpotLightMap;\n	#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n	SpotLightShadow spotLightShadow;\n	#endif\n	#pragma unroll_loop_start\n	for ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n		spotLight = spotLights[ i ];\n		getSpotLightInfo( spotLight, geometryPosition, directLight );\n		#if ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n		#define SPOT_LIGHT_MAP_INDEX UNROLLED_LOOP_INDEX\n		#elif ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n		#define SPOT_LIGHT_MAP_INDEX NUM_SPOT_LIGHT_MAPS\n		#else\n		#define SPOT_LIGHT_MAP_INDEX ( UNROLLED_LOOP_INDEX - NUM_SPOT_LIGHT_SHADOWS + NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS )\n		#endif\n		#if ( SPOT_LIGHT_MAP_INDEX < NUM_SPOT_LIGHT_MAPS )\n			spotLightCoord = vSpotLightCoord[ i ].xyz / vSpotLightCoord[ i ].w;\n			inSpotLightMap = all( lessThan( abs( spotLightCoord * 2. - 1. ), vec3( 1.0 ) ) );\n			spotColor = texture2D( spotLightMap[ SPOT_LIGHT_MAP_INDEX ], spotLightCoord.xy );\n			directLight.color = inSpotLightMap ? directLight.color * spotColor.rgb : directLight.color;\n		#endif\n		#undef SPOT_LIGHT_MAP_INDEX\n		#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n		spotLightShadow = spotLightShadows[ i ];\n		directLight.color *= ( directLight.visible && receiveShadow ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowIntensity, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n		#endif\n		RE_Direct( directLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n	}\n	#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n	DirectionalLight directionalLight;\n	#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n	DirectionalLightShadow directionalLightShadow;\n	#endif\n	#pragma unroll_loop_start\n	for ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n		directionalLight = directionalLights[ i ];\n		getDirectionalLightInfo( directionalLight, directLight );\n		#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n		directionalLightShadow = directionalLightShadows[ i ];\n		directLight.color *= ( directLight.visible && receiveShadow ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowIntensity, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n		#endif\n		RE_Direct( directLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n	}\n	#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n	RectAreaLight rectAreaLight;\n	#pragma unroll_loop_start\n	for ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n		rectAreaLight = rectAreaLights[ i ];\n		RE_Direct_RectArea( rectAreaLight, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n	}\n	#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n	vec3 iblIrradiance = vec3( 0.0 );\n	vec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n	#if defined( USE_LIGHT_PROBES )\n		irradiance += getLightProbeIrradiance( lightProbe, geometryNormal );\n	#endif\n	#if ( NUM_HEMI_LIGHTS > 0 )\n		#pragma unroll_loop_start\n		for ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n			irradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometryNormal );\n		}\n		#pragma unroll_loop_end\n	#endif\n#endif\n#if defined( RE_IndirectSpecular )\n	vec3 radiance = vec3( 0.0 );\n	vec3 clearcoatRadiance = vec3( 0.0 );\n#endif";
var lights_fragment_maps = "#if defined( RE_IndirectDiffuse )\n	#ifdef USE_LIGHTMAP\n		vec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n		vec3 lightMapIrradiance = lightMapTexel.rgb * lightMapIntensity;\n		irradiance += lightMapIrradiance;\n	#endif\n	#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n		iblIrradiance += getIBLIrradiance( geometryNormal );\n	#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n	#ifdef USE_ANISOTROPY\n		radiance += getIBLAnisotropyRadiance( geometryViewDir, geometryNormal, material.roughness, material.anisotropyB, material.anisotropy );\n	#else\n		radiance += getIBLRadiance( geometryViewDir, geometryNormal, material.roughness );\n	#endif\n	#ifdef USE_CLEARCOAT\n		clearcoatRadiance += getIBLRadiance( geometryViewDir, geometryClearcoatNormal, material.clearcoatRoughness );\n	#endif\n#endif";
var lights_fragment_end = "#if defined( RE_IndirectDiffuse )\n	RE_IndirectDiffuse( irradiance, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n	RE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometryPosition, geometryNormal, geometryViewDir, geometryClearcoatNormal, material, reflectedLight );\n#endif";
var logdepthbuf_fragment = "#if defined( USE_LOGDEPTHBUF )\n	gl_FragDepth = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";
var logdepthbuf_pars_fragment = "#if defined( USE_LOGDEPTHBUF )\n	uniform float logDepthBufFC;\n	varying float vFragDepth;\n	varying float vIsPerspective;\n#endif";
var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n	varying float vFragDepth;\n	varying float vIsPerspective;\n#endif";
var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n	vFragDepth = 1.0 + gl_Position.w;\n	vIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n#endif";
var map_fragment = "#ifdef USE_MAP\n	vec4 sampledDiffuseColor = texture2D( map, vMapUv );\n	#ifdef DECODE_VIDEO_TEXTURE\n		sampledDiffuseColor = sRGBTransferEOTF( sampledDiffuseColor );\n	#endif\n	diffuseColor *= sampledDiffuseColor;\n#endif";
var map_pars_fragment = "#ifdef USE_MAP\n	uniform sampler2D map;\n#endif";
var map_particle_fragment = "#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n	#if defined( USE_POINTS_UV )\n		vec2 uv = vUv;\n	#else\n		vec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n	#endif\n#endif\n#ifdef USE_MAP\n	diffuseColor *= texture2D( map, uv );\n#endif\n#ifdef USE_ALPHAMAP\n	diffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif";
var map_particle_pars_fragment = "#if defined( USE_POINTS_UV )\n	varying vec2 vUv;\n#else\n	#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n		uniform mat3 uvTransform;\n	#endif\n#endif\n#ifdef USE_MAP\n	uniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n	uniform sampler2D alphaMap;\n#endif";
var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n	vec4 texelMetalness = texture2D( metalnessMap, vMetalnessMapUv );\n	metalnessFactor *= texelMetalness.b;\n#endif";
var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n	uniform sampler2D metalnessMap;\n#endif";
var morphinstance_vertex = "#ifdef USE_INSTANCING_MORPH\n	float morphTargetInfluences[ MORPHTARGETS_COUNT ];\n	float morphTargetBaseInfluence = texelFetch( morphTexture, ivec2( 0, gl_InstanceID ), 0 ).r;\n	for ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n		morphTargetInfluences[i] =  texelFetch( morphTexture, ivec2( i + 1, gl_InstanceID ), 0 ).r;\n	}\n#endif";
var morphcolor_vertex = "#if defined( USE_MORPHCOLORS )\n	vColor *= morphTargetBaseInfluence;\n	for ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n		#if defined( USE_COLOR_ALPHA )\n			if ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ) * morphTargetInfluences[ i ];\n		#elif defined( USE_COLOR )\n			if ( morphTargetInfluences[ i ] != 0.0 ) vColor += getMorph( gl_VertexID, i, 2 ).rgb * morphTargetInfluences[ i ];\n		#endif\n	}\n#endif";
var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n	objectNormal *= morphTargetBaseInfluence;\n	for ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n		if ( morphTargetInfluences[ i ] != 0.0 ) objectNormal += getMorph( gl_VertexID, i, 1 ).xyz * morphTargetInfluences[ i ];\n	}\n#endif";
var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n	#ifndef USE_INSTANCING_MORPH\n		uniform float morphTargetBaseInfluence;\n		uniform float morphTargetInfluences[ MORPHTARGETS_COUNT ];\n	#endif\n	uniform sampler2DArray morphTargetsTexture;\n	uniform ivec2 morphTargetsTextureSize;\n	vec4 getMorph( const in int vertexIndex, const in int morphTargetIndex, const in int offset ) {\n		int texelIndex = vertexIndex * MORPHTARGETS_TEXTURE_STRIDE + offset;\n		int y = texelIndex / morphTargetsTextureSize.x;\n		int x = texelIndex - y * morphTargetsTextureSize.x;\n		ivec3 morphUV = ivec3( x, y, morphTargetIndex );\n		return texelFetch( morphTargetsTexture, morphUV, 0 );\n	}\n#endif";
var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n	transformed *= morphTargetBaseInfluence;\n	for ( int i = 0; i < MORPHTARGETS_COUNT; i ++ ) {\n		if ( morphTargetInfluences[ i ] != 0.0 ) transformed += getMorph( gl_VertexID, i, 0 ).xyz * morphTargetInfluences[ i ];\n	}\n#endif";
var normal_fragment_begin = "float faceDirection = gl_FrontFacing ? 1.0 : - 1.0;\n#ifdef FLAT_SHADED\n	vec3 fdx = dFdx( vViewPosition );\n	vec3 fdy = dFdy( vViewPosition );\n	vec3 normal = normalize( cross( fdx, fdy ) );\n#else\n	vec3 normal = normalize( vNormal );\n	#ifdef DOUBLE_SIDED\n		normal *= faceDirection;\n	#endif\n#endif\n#if defined( USE_NORMALMAP_TANGENTSPACE ) || defined( USE_CLEARCOAT_NORMALMAP ) || defined( USE_ANISOTROPY )\n	#ifdef USE_TANGENT\n		mat3 tbn = mat3( normalize( vTangent ), normalize( vBitangent ), normal );\n	#else\n		mat3 tbn = getTangentFrame( - vViewPosition, normal,\n		#if defined( USE_NORMALMAP )\n			vNormalMapUv\n		#elif defined( USE_CLEARCOAT_NORMALMAP )\n			vClearcoatNormalMapUv\n		#else\n			vUv\n		#endif\n		);\n	#endif\n	#if defined( DOUBLE_SIDED ) && ! defined( FLAT_SHADED )\n		tbn[0] *= faceDirection;\n		tbn[1] *= faceDirection;\n	#endif\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n	#ifdef USE_TANGENT\n		mat3 tbn2 = mat3( normalize( vTangent ), normalize( vBitangent ), normal );\n	#else\n		mat3 tbn2 = getTangentFrame( - vViewPosition, normal, vClearcoatNormalMapUv );\n	#endif\n	#if defined( DOUBLE_SIDED ) && ! defined( FLAT_SHADED )\n		tbn2[0] *= faceDirection;\n		tbn2[1] *= faceDirection;\n	#endif\n#endif\nvec3 nonPerturbedNormal = normal;";
var normal_fragment_maps = "#ifdef USE_NORMALMAP_OBJECTSPACE\n	normal = texture2D( normalMap, vNormalMapUv ).xyz * 2.0 - 1.0;\n	#ifdef FLIP_SIDED\n		normal = - normal;\n	#endif\n	#ifdef DOUBLE_SIDED\n		normal = normal * faceDirection;\n	#endif\n	normal = normalize( normalMatrix * normal );\n#elif defined( USE_NORMALMAP_TANGENTSPACE )\n	vec3 mapN = texture2D( normalMap, vNormalMapUv ).xyz * 2.0 - 1.0;\n	mapN.xy *= normalScale;\n	normal = normalize( tbn * mapN );\n#elif defined( USE_BUMPMAP )\n	normal = perturbNormalArb( - vViewPosition, normal, dHdxy_fwd(), faceDirection );\n#endif";
var normal_pars_fragment = "#ifndef FLAT_SHADED\n	varying vec3 vNormal;\n	#ifdef USE_TANGENT\n		varying vec3 vTangent;\n		varying vec3 vBitangent;\n	#endif\n#endif";
var normal_pars_vertex = "#ifndef FLAT_SHADED\n	varying vec3 vNormal;\n	#ifdef USE_TANGENT\n		varying vec3 vTangent;\n		varying vec3 vBitangent;\n	#endif\n#endif";
var normal_vertex = "#ifndef FLAT_SHADED\n	vNormal = normalize( transformedNormal );\n	#ifdef USE_TANGENT\n		vTangent = normalize( transformedTangent );\n		vBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n	#endif\n#endif";
var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n	uniform sampler2D normalMap;\n	uniform vec2 normalScale;\n#endif\n#ifdef USE_NORMALMAP_OBJECTSPACE\n	uniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( USE_NORMALMAP_TANGENTSPACE ) || defined ( USE_CLEARCOAT_NORMALMAP ) || defined( USE_ANISOTROPY ) )\n	mat3 getTangentFrame( vec3 eye_pos, vec3 surf_norm, vec2 uv ) {\n		vec3 q0 = dFdx( eye_pos.xyz );\n		vec3 q1 = dFdy( eye_pos.xyz );\n		vec2 st0 = dFdx( uv.st );\n		vec2 st1 = dFdy( uv.st );\n		vec3 N = surf_norm;\n		vec3 q1perp = cross( q1, N );\n		vec3 q0perp = cross( N, q0 );\n		vec3 T = q1perp * st0.x + q0perp * st1.x;\n		vec3 B = q1perp * st0.y + q0perp * st1.y;\n		float det = max( dot( T, T ), dot( B, B ) );\n		float scale = ( det == 0.0 ) ? 0.0 : inversesqrt( det );\n		return mat3( T * scale, B * scale, N );\n	}\n#endif";
var clearcoat_normal_fragment_begin = "#ifdef USE_CLEARCOAT\n	vec3 clearcoatNormal = nonPerturbedNormal;\n#endif";
var clearcoat_normal_fragment_maps = "#ifdef USE_CLEARCOAT_NORMALMAP\n	vec3 clearcoatMapN = texture2D( clearcoatNormalMap, vClearcoatNormalMapUv ).xyz * 2.0 - 1.0;\n	clearcoatMapN.xy *= clearcoatNormalScale;\n	clearcoatNormal = normalize( tbn2 * clearcoatMapN );\n#endif";
var clearcoat_pars_fragment = "#ifdef USE_CLEARCOATMAP\n	uniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n	uniform sampler2D clearcoatNormalMap;\n	uniform vec2 clearcoatNormalScale;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n	uniform sampler2D clearcoatRoughnessMap;\n#endif";
var iridescence_pars_fragment = "#ifdef USE_IRIDESCENCEMAP\n	uniform sampler2D iridescenceMap;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n	uniform sampler2D iridescenceThicknessMap;\n#endif";
var opaque_fragment = "#ifdef OPAQUE\ndiffuseColor.a = 1.0;\n#endif\n#ifdef USE_TRANSMISSION\ndiffuseColor.a *= material.transmissionAlpha;\n#endif\ngl_FragColor = vec4( outgoingLight, diffuseColor.a );";
var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n	return normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n	return 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;const float ShiftRight8 = 1. / 256.;\nconst float Inv255 = 1. / 255.;\nconst vec4 PackFactors = vec4( 1.0, 256.0, 256.0 * 256.0, 256.0 * 256.0 * 256.0 );\nconst vec2 UnpackFactors2 = vec2( UnpackDownscale, 1.0 / PackFactors.g );\nconst vec3 UnpackFactors3 = vec3( UnpackDownscale / PackFactors.rg, 1.0 / PackFactors.b );\nconst vec4 UnpackFactors4 = vec4( UnpackDownscale / PackFactors.rgb, 1.0 / PackFactors.a );\nvec4 packDepthToRGBA( const in float v ) {\n	if( v <= 0.0 )\n		return vec4( 0., 0., 0., 0. );\n	if( v >= 1.0 )\n		return vec4( 1., 1., 1., 1. );\n	float vuf;\n	float af = modf( v * PackFactors.a, vuf );\n	float bf = modf( vuf * ShiftRight8, vuf );\n	float gf = modf( vuf * ShiftRight8, vuf );\n	return vec4( vuf * Inv255, gf * PackUpscale, bf * PackUpscale, af );\n}\nvec3 packDepthToRGB( const in float v ) {\n	if( v <= 0.0 )\n		return vec3( 0., 0., 0. );\n	if( v >= 1.0 )\n		return vec3( 1., 1., 1. );\n	float vuf;\n	float bf = modf( v * PackFactors.b, vuf );\n	float gf = modf( vuf * ShiftRight8, vuf );\n	return vec3( vuf * Inv255, gf * PackUpscale, bf );\n}\nvec2 packDepthToRG( const in float v ) {\n	if( v <= 0.0 )\n		return vec2( 0., 0. );\n	if( v >= 1.0 )\n		return vec2( 1., 1. );\n	float vuf;\n	float gf = modf( v * 256., vuf );\n	return vec2( vuf * Inv255, gf );\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n	return dot( v, UnpackFactors4 );\n}\nfloat unpackRGBToDepth( const in vec3 v ) {\n	return dot( v, UnpackFactors3 );\n}\nfloat unpackRGToDepth( const in vec2 v ) {\n	return v.r * UnpackFactors2.r + v.g * UnpackFactors2.g;\n}\nvec4 pack2HalfToRGBA( const in vec2 v ) {\n	vec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ) );\n	return vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w );\n}\nvec2 unpackRGBATo2Half( const in vec4 v ) {\n	return vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n	return ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float depth, const in float near, const in float far ) {\n	return depth * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n	return ( ( near + viewZ ) * far ) / ( ( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float depth, const in float near, const in float far ) {\n	return ( near * far ) / ( ( far - near ) * depth - far );\n}";
var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n	gl_FragColor.rgb *= gl_FragColor.a;\n#endif";
var project_vertex = "vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_BATCHING\n	mvPosition = batchingMatrix * mvPosition;\n#endif\n#ifdef USE_INSTANCING\n	mvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;";
var dithering_fragment = "#ifdef DITHERING\n	gl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif";
var dithering_pars_fragment = "#ifdef DITHERING\n	vec3 dithering( vec3 color ) {\n		float grid_position = rand( gl_FragCoord.xy );\n		vec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n		dither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n		return color + dither_shift_RGB;\n	}\n#endif";
var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n	vec4 texelRoughness = texture2D( roughnessMap, vRoughnessMapUv );\n	roughnessFactor *= texelRoughness.g;\n#endif";
var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n	uniform sampler2D roughnessMap;\n#endif";
var shadowmap_pars_fragment = "#if NUM_SPOT_LIGHT_COORDS > 0\n	varying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#if NUM_SPOT_LIGHT_MAPS > 0\n	uniform sampler2D spotLightMap[ NUM_SPOT_LIGHT_MAPS ];\n#endif\n#ifdef USE_SHADOWMAP\n	#if NUM_DIR_LIGHT_SHADOWS > 0\n		uniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n		varying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n		struct DirectionalLightShadow {\n			float shadowIntensity;\n			float shadowBias;\n			float shadowNormalBias;\n			float shadowRadius;\n			vec2 shadowMapSize;\n		};\n		uniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n	#endif\n	#if NUM_SPOT_LIGHT_SHADOWS > 0\n		uniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n		struct SpotLightShadow {\n			float shadowIntensity;\n			float shadowBias;\n			float shadowNormalBias;\n			float shadowRadius;\n			vec2 shadowMapSize;\n		};\n		uniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n	#endif\n	#if NUM_POINT_LIGHT_SHADOWS > 0\n		uniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n		varying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n		struct PointLightShadow {\n			float shadowIntensity;\n			float shadowBias;\n			float shadowNormalBias;\n			float shadowRadius;\n			vec2 shadowMapSize;\n			float shadowCameraNear;\n			float shadowCameraFar;\n		};\n		uniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n	#endif\n	float texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n		return step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n	}\n	vec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n		return unpackRGBATo2Half( texture2D( shadow, uv ) );\n	}\n	float VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n		float occlusion = 1.0;\n		vec2 distribution = texture2DDistribution( shadow, uv );\n		float hard_shadow = step( compare , distribution.x );\n		if (hard_shadow != 1.0 ) {\n			float distance = compare - distribution.x ;\n			float variance = max( 0.00000, distribution.y * distribution.y );\n			float softness_probability = variance / (variance + distance * distance );			softness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );			occlusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n		}\n		return occlusion;\n	}\n	float getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowIntensity, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n		float shadow = 1.0;\n		shadowCoord.xyz /= shadowCoord.w;\n		shadowCoord.z += shadowBias;\n		bool inFrustum = shadowCoord.x >= 0.0 && shadowCoord.x <= 1.0 && shadowCoord.y >= 0.0 && shadowCoord.y <= 1.0;\n		bool frustumTest = inFrustum && shadowCoord.z <= 1.0;\n		if ( frustumTest ) {\n		#if defined( SHADOWMAP_TYPE_PCF )\n			vec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n			float dx0 = - texelSize.x * shadowRadius;\n			float dy0 = - texelSize.y * shadowRadius;\n			float dx1 = + texelSize.x * shadowRadius;\n			float dy1 = + texelSize.y * shadowRadius;\n			float dx2 = dx0 / 2.0;\n			float dy2 = dy0 / 2.0;\n			float dx3 = dx1 / 2.0;\n			float dy3 = dy1 / 2.0;\n			shadow = (\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n			) * ( 1.0 / 17.0 );\n		#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n			vec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n			float dx = texelSize.x;\n			float dy = texelSize.y;\n			vec2 uv = shadowCoord.xy;\n			vec2 f = fract( uv * shadowMapSize + 0.5 );\n			uv -= f * texelSize;\n			shadow = (\n				texture2DCompare( shadowMap, uv, shadowCoord.z ) +\n				texture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n				texture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n				mix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ),\n					 texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n					 f.x ) +\n				mix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ),\n					 texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n					 f.x ) +\n				mix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ),\n					 texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n					 f.y ) +\n				mix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ),\n					 texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n					 f.y ) +\n				mix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ),\n						  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n						  f.x ),\n					 mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ),\n						  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n						  f.x ),\n					 f.y )\n			) * ( 1.0 / 9.0 );\n		#elif defined( SHADOWMAP_TYPE_VSM )\n			shadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n		#else\n			shadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n		#endif\n		}\n		return mix( 1.0, shadow, shadowIntensity );\n	}\n	vec2 cubeToUV( vec3 v, float texelSizeY ) {\n		vec3 absV = abs( v );\n		float scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n		absV *= scaleToCube;\n		v *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n		vec2 planar = v.xy;\n		float almostATexel = 1.5 * texelSizeY;\n		float almostOne = 1.0 - almostATexel;\n		if ( absV.z >= almostOne ) {\n			if ( v.z > 0.0 )\n				planar.x = 4.0 - v.x;\n		} else if ( absV.x >= almostOne ) {\n			float signX = sign( v.x );\n			planar.x = v.z * signX + 2.0 * signX;\n		} else if ( absV.y >= almostOne ) {\n			float signY = sign( v.y );\n			planar.x = v.x + 2.0 * signY + 2.0;\n			planar.y = v.z * signY - 2.0;\n		}\n		return vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n	}\n	float getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowIntensity, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n		float shadow = 1.0;\n		vec3 lightToPosition = shadowCoord.xyz;\n		\n		float lightToPositionLength = length( lightToPosition );\n		if ( lightToPositionLength - shadowCameraFar <= 0.0 && lightToPositionLength - shadowCameraNear >= 0.0 ) {\n			float dp = ( lightToPositionLength - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );			dp += shadowBias;\n			vec3 bd3D = normalize( lightToPosition );\n			vec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n			#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n				vec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n				shadow = (\n					texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n					texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n					texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n					texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n					texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n					texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n					texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n					texture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n					texture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n				) * ( 1.0 / 9.0 );\n			#else\n				shadow = texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n			#endif\n		}\n		return mix( 1.0, shadow, shadowIntensity );\n	}\n#endif";
var shadowmap_pars_vertex = "#if NUM_SPOT_LIGHT_COORDS > 0\n	uniform mat4 spotLightMatrix[ NUM_SPOT_LIGHT_COORDS ];\n	varying vec4 vSpotLightCoord[ NUM_SPOT_LIGHT_COORDS ];\n#endif\n#ifdef USE_SHADOWMAP\n	#if NUM_DIR_LIGHT_SHADOWS > 0\n		uniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n		varying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n		struct DirectionalLightShadow {\n			float shadowIntensity;\n			float shadowBias;\n			float shadowNormalBias;\n			float shadowRadius;\n			vec2 shadowMapSize;\n		};\n		uniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n	#endif\n	#if NUM_SPOT_LIGHT_SHADOWS > 0\n		struct SpotLightShadow {\n			float shadowIntensity;\n			float shadowBias;\n			float shadowNormalBias;\n			float shadowRadius;\n			vec2 shadowMapSize;\n		};\n		uniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n	#endif\n	#if NUM_POINT_LIGHT_SHADOWS > 0\n		uniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n		varying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n		struct PointLightShadow {\n			float shadowIntensity;\n			float shadowBias;\n			float shadowNormalBias;\n			float shadowRadius;\n			vec2 shadowMapSize;\n			float shadowCameraNear;\n			float shadowCameraFar;\n		};\n		uniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n	#endif\n#endif";
var shadowmap_vertex = "#if ( defined( USE_SHADOWMAP ) && ( NUM_DIR_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0 ) ) || ( NUM_SPOT_LIGHT_COORDS > 0 )\n	vec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n	vec4 shadowWorldPosition;\n#endif\n#if defined( USE_SHADOWMAP )\n	#if NUM_DIR_LIGHT_SHADOWS > 0\n		#pragma unroll_loop_start\n		for ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n			shadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n			vDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n		}\n		#pragma unroll_loop_end\n	#endif\n	#if NUM_POINT_LIGHT_SHADOWS > 0\n		#pragma unroll_loop_start\n		for ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n			shadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n			vPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n		}\n		#pragma unroll_loop_end\n	#endif\n#endif\n#if NUM_SPOT_LIGHT_COORDS > 0\n	#pragma unroll_loop_start\n	for ( int i = 0; i < NUM_SPOT_LIGHT_COORDS; i ++ ) {\n		shadowWorldPosition = worldPosition;\n		#if ( defined( USE_SHADOWMAP ) && UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n			shadowWorldPosition.xyz += shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias;\n		#endif\n		vSpotLightCoord[ i ] = spotLightMatrix[ i ] * shadowWorldPosition;\n	}\n	#pragma unroll_loop_end\n#endif";
var shadowmask_pars_fragment = "float getShadowMask() {\n	float shadow = 1.0;\n	#ifdef USE_SHADOWMAP\n	#if NUM_DIR_LIGHT_SHADOWS > 0\n	DirectionalLightShadow directionalLight;\n	#pragma unroll_loop_start\n	for ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n		directionalLight = directionalLightShadows[ i ];\n		shadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowIntensity, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n	}\n	#pragma unroll_loop_end\n	#endif\n	#if NUM_SPOT_LIGHT_SHADOWS > 0\n	SpotLightShadow spotLight;\n	#pragma unroll_loop_start\n	for ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n		spotLight = spotLightShadows[ i ];\n		shadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowIntensity, spotLight.shadowBias, spotLight.shadowRadius, vSpotLightCoord[ i ] ) : 1.0;\n	}\n	#pragma unroll_loop_end\n	#endif\n	#if NUM_POINT_LIGHT_SHADOWS > 0\n	PointLightShadow pointLight;\n	#pragma unroll_loop_start\n	for ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n		pointLight = pointLightShadows[ i ];\n		shadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowIntensity, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n	}\n	#pragma unroll_loop_end\n	#endif\n	#endif\n	return shadow;\n}";
var skinbase_vertex = "#ifdef USE_SKINNING\n	mat4 boneMatX = getBoneMatrix( skinIndex.x );\n	mat4 boneMatY = getBoneMatrix( skinIndex.y );\n	mat4 boneMatZ = getBoneMatrix( skinIndex.z );\n	mat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";
var skinning_pars_vertex = "#ifdef USE_SKINNING\n	uniform mat4 bindMatrix;\n	uniform mat4 bindMatrixInverse;\n	uniform highp sampler2D boneTexture;\n	mat4 getBoneMatrix( const in float i ) {\n		int size = textureSize( boneTexture, 0 ).x;\n		int j = int( i ) * 4;\n		int x = j % size;\n		int y = j / size;\n		vec4 v1 = texelFetch( boneTexture, ivec2( x, y ), 0 );\n		vec4 v2 = texelFetch( boneTexture, ivec2( x + 1, y ), 0 );\n		vec4 v3 = texelFetch( boneTexture, ivec2( x + 2, y ), 0 );\n		vec4 v4 = texelFetch( boneTexture, ivec2( x + 3, y ), 0 );\n		return mat4( v1, v2, v3, v4 );\n	}\n#endif";
var skinning_vertex = "#ifdef USE_SKINNING\n	vec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n	vec4 skinned = vec4( 0.0 );\n	skinned += boneMatX * skinVertex * skinWeight.x;\n	skinned += boneMatY * skinVertex * skinWeight.y;\n	skinned += boneMatZ * skinVertex * skinWeight.z;\n	skinned += boneMatW * skinVertex * skinWeight.w;\n	transformed = ( bindMatrixInverse * skinned ).xyz;\n#endif";
var skinnormal_vertex = "#ifdef USE_SKINNING\n	mat4 skinMatrix = mat4( 0.0 );\n	skinMatrix += skinWeight.x * boneMatX;\n	skinMatrix += skinWeight.y * boneMatY;\n	skinMatrix += skinWeight.z * boneMatZ;\n	skinMatrix += skinWeight.w * boneMatW;\n	skinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n	objectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n	#ifdef USE_TANGENT\n		objectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n	#endif\n#endif";
var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n	vec4 texelSpecular = texture2D( specularMap, vSpecularMapUv );\n	specularStrength = texelSpecular.r;\n#else\n	specularStrength = 1.0;\n#endif";
var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n	uniform sampler2D specularMap;\n#endif";
var tonemapping_fragment = "#if defined( TONE_MAPPING )\n	gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif";
var tonemapping_pars_fragment = "#ifndef saturate\n#define saturate( a ) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n	return saturate( toneMappingExposure * color );\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n	color *= toneMappingExposure;\n	return saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 CineonToneMapping( vec3 color ) {\n	color *= toneMappingExposure;\n	color = max( vec3( 0.0 ), color - 0.004 );\n	return pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n	vec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n	vec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n	return a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n	const mat3 ACESInputMat = mat3(\n		vec3( 0.59719, 0.07600, 0.02840 ),		vec3( 0.35458, 0.90834, 0.13383 ),\n		vec3( 0.04823, 0.01566, 0.83777 )\n	);\n	const mat3 ACESOutputMat = mat3(\n		vec3(  1.60475, -0.10208, -0.00327 ),		vec3( -0.53108,  1.10813, -0.07276 ),\n		vec3( -0.07367, -0.00605,  1.07602 )\n	);\n	color *= toneMappingExposure / 0.6;\n	color = ACESInputMat * color;\n	color = RRTAndODTFit( color );\n	color = ACESOutputMat * color;\n	return saturate( color );\n}\nconst mat3 LINEAR_REC2020_TO_LINEAR_SRGB = mat3(\n	vec3( 1.6605, - 0.1246, - 0.0182 ),\n	vec3( - 0.5876, 1.1329, - 0.1006 ),\n	vec3( - 0.0728, - 0.0083, 1.1187 )\n);\nconst mat3 LINEAR_SRGB_TO_LINEAR_REC2020 = mat3(\n	vec3( 0.6274, 0.0691, 0.0164 ),\n	vec3( 0.3293, 0.9195, 0.0880 ),\n	vec3( 0.0433, 0.0113, 0.8956 )\n);\nvec3 agxDefaultContrastApprox( vec3 x ) {\n	vec3 x2 = x * x;\n	vec3 x4 = x2 * x2;\n	return + 15.5 * x4 * x2\n		- 40.14 * x4 * x\n		+ 31.96 * x4\n		- 6.868 * x2 * x\n		+ 0.4298 * x2\n		+ 0.1191 * x\n		- 0.00232;\n}\nvec3 AgXToneMapping( vec3 color ) {\n	const mat3 AgXInsetMatrix = mat3(\n		vec3( 0.856627153315983, 0.137318972929847, 0.11189821299995 ),\n		vec3( 0.0951212405381588, 0.761241990602591, 0.0767994186031903 ),\n		vec3( 0.0482516061458583, 0.101439036467562, 0.811302368396859 )\n	);\n	const mat3 AgXOutsetMatrix = mat3(\n		vec3( 1.1271005818144368, - 0.1413297634984383, - 0.14132976349843826 ),\n		vec3( - 0.11060664309660323, 1.157823702216272, - 0.11060664309660294 ),\n		vec3( - 0.016493938717834573, - 0.016493938717834257, 1.2519364065950405 )\n	);\n	const float AgxMinEv = - 12.47393;	const float AgxMaxEv = 4.026069;\n	color *= toneMappingExposure;\n	color = LINEAR_SRGB_TO_LINEAR_REC2020 * color;\n	color = AgXInsetMatrix * color;\n	color = max( color, 1e-10 );	color = log2( color );\n	color = ( color - AgxMinEv ) / ( AgxMaxEv - AgxMinEv );\n	color = clamp( color, 0.0, 1.0 );\n	color = agxDefaultContrastApprox( color );\n	color = AgXOutsetMatrix * color;\n	color = pow( max( vec3( 0.0 ), color ), vec3( 2.2 ) );\n	color = LINEAR_REC2020_TO_LINEAR_SRGB * color;\n	color = clamp( color, 0.0, 1.0 );\n	return color;\n}\nvec3 NeutralToneMapping( vec3 color ) {\n	const float StartCompression = 0.8 - 0.04;\n	const float Desaturation = 0.15;\n	color *= toneMappingExposure;\n	float x = min( color.r, min( color.g, color.b ) );\n	float offset = x < 0.08 ? x - 6.25 * x * x : 0.04;\n	color -= offset;\n	float peak = max( color.r, max( color.g, color.b ) );\n	if ( peak < StartCompression ) return color;\n	float d = 1. - StartCompression;\n	float newPeak = 1. - d * d / ( peak + d - StartCompression );\n	color *= newPeak / peak;\n	float g = 1. - 1. / ( Desaturation * ( peak - newPeak ) + 1. );\n	return mix( color, vec3( newPeak ), g );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }";
var transmission_fragment = "#ifdef USE_TRANSMISSION\n	material.transmission = transmission;\n	material.transmissionAlpha = 1.0;\n	material.thickness = thickness;\n	material.attenuationDistance = attenuationDistance;\n	material.attenuationColor = attenuationColor;\n	#ifdef USE_TRANSMISSIONMAP\n		material.transmission *= texture2D( transmissionMap, vTransmissionMapUv ).r;\n	#endif\n	#ifdef USE_THICKNESSMAP\n		material.thickness *= texture2D( thicknessMap, vThicknessMapUv ).g;\n	#endif\n	vec3 pos = vWorldPosition;\n	vec3 v = normalize( cameraPosition - pos );\n	vec3 n = inverseTransformDirection( normal, viewMatrix );\n	vec4 transmitted = getIBLVolumeRefraction(\n		n, v, material.roughness, material.diffuseColor, material.specularColor, material.specularF90,\n		pos, modelMatrix, viewMatrix, projectionMatrix, material.dispersion, material.ior, material.thickness,\n		material.attenuationColor, material.attenuationDistance );\n	material.transmissionAlpha = mix( material.transmissionAlpha, transmitted.a, material.transmission );\n	totalDiffuse = mix( totalDiffuse, transmitted.rgb, material.transmission );\n#endif";
var transmission_pars_fragment = "#ifdef USE_TRANSMISSION\n	uniform float transmission;\n	uniform float thickness;\n	uniform float attenuationDistance;\n	uniform vec3 attenuationColor;\n	#ifdef USE_TRANSMISSIONMAP\n		uniform sampler2D transmissionMap;\n	#endif\n	#ifdef USE_THICKNESSMAP\n		uniform sampler2D thicknessMap;\n	#endif\n	uniform vec2 transmissionSamplerSize;\n	uniform sampler2D transmissionSamplerMap;\n	uniform mat4 modelMatrix;\n	uniform mat4 projectionMatrix;\n	varying vec3 vWorldPosition;\n	float w0( float a ) {\n		return ( 1.0 / 6.0 ) * ( a * ( a * ( - a + 3.0 ) - 3.0 ) + 1.0 );\n	}\n	float w1( float a ) {\n		return ( 1.0 / 6.0 ) * ( a *  a * ( 3.0 * a - 6.0 ) + 4.0 );\n	}\n	float w2( float a ){\n		return ( 1.0 / 6.0 ) * ( a * ( a * ( - 3.0 * a + 3.0 ) + 3.0 ) + 1.0 );\n	}\n	float w3( float a ) {\n		return ( 1.0 / 6.0 ) * ( a * a * a );\n	}\n	float g0( float a ) {\n		return w0( a ) + w1( a );\n	}\n	float g1( float a ) {\n		return w2( a ) + w3( a );\n	}\n	float h0( float a ) {\n		return - 1.0 + w1( a ) / ( w0( a ) + w1( a ) );\n	}\n	float h1( float a ) {\n		return 1.0 + w3( a ) / ( w2( a ) + w3( a ) );\n	}\n	vec4 bicubic( sampler2D tex, vec2 uv, vec4 texelSize, float lod ) {\n		uv = uv * texelSize.zw + 0.5;\n		vec2 iuv = floor( uv );\n		vec2 fuv = fract( uv );\n		float g0x = g0( fuv.x );\n		float g1x = g1( fuv.x );\n		float h0x = h0( fuv.x );\n		float h1x = h1( fuv.x );\n		float h0y = h0( fuv.y );\n		float h1y = h1( fuv.y );\n		vec2 p0 = ( vec2( iuv.x + h0x, iuv.y + h0y ) - 0.5 ) * texelSize.xy;\n		vec2 p1 = ( vec2( iuv.x + h1x, iuv.y + h0y ) - 0.5 ) * texelSize.xy;\n		vec2 p2 = ( vec2( iuv.x + h0x, iuv.y + h1y ) - 0.5 ) * texelSize.xy;\n		vec2 p3 = ( vec2( iuv.x + h1x, iuv.y + h1y ) - 0.5 ) * texelSize.xy;\n		return g0( fuv.y ) * ( g0x * textureLod( tex, p0, lod ) + g1x * textureLod( tex, p1, lod ) ) +\n			g1( fuv.y ) * ( g0x * textureLod( tex, p2, lod ) + g1x * textureLod( tex, p3, lod ) );\n	}\n	vec4 textureBicubic( sampler2D sampler, vec2 uv, float lod ) {\n		vec2 fLodSize = vec2( textureSize( sampler, int( lod ) ) );\n		vec2 cLodSize = vec2( textureSize( sampler, int( lod + 1.0 ) ) );\n		vec2 fLodSizeInv = 1.0 / fLodSize;\n		vec2 cLodSizeInv = 1.0 / cLodSize;\n		vec4 fSample = bicubic( sampler, uv, vec4( fLodSizeInv, fLodSize ), floor( lod ) );\n		vec4 cSample = bicubic( sampler, uv, vec4( cLodSizeInv, cLodSize ), ceil( lod ) );\n		return mix( fSample, cSample, fract( lod ) );\n	}\n	vec3 getVolumeTransmissionRay( const in vec3 n, const in vec3 v, const in float thickness, const in float ior, const in mat4 modelMatrix ) {\n		vec3 refractionVector = refract( - v, normalize( n ), 1.0 / ior );\n		vec3 modelScale;\n		modelScale.x = length( vec3( modelMatrix[ 0 ].xyz ) );\n		modelScale.y = length( vec3( modelMatrix[ 1 ].xyz ) );\n		modelScale.z = length( vec3( modelMatrix[ 2 ].xyz ) );\n		return normalize( refractionVector ) * thickness * modelScale;\n	}\n	float applyIorToRoughness( const in float roughness, const in float ior ) {\n		return roughness * clamp( ior * 2.0 - 2.0, 0.0, 1.0 );\n	}\n	vec4 getTransmissionSample( const in vec2 fragCoord, const in float roughness, const in float ior ) {\n		float lod = log2( transmissionSamplerSize.x ) * applyIorToRoughness( roughness, ior );\n		return textureBicubic( transmissionSamplerMap, fragCoord.xy, lod );\n	}\n	vec3 volumeAttenuation( const in float transmissionDistance, const in vec3 attenuationColor, const in float attenuationDistance ) {\n		if ( isinf( attenuationDistance ) ) {\n			return vec3( 1.0 );\n		} else {\n			vec3 attenuationCoefficient = -log( attenuationColor ) / attenuationDistance;\n			vec3 transmittance = exp( - attenuationCoefficient * transmissionDistance );			return transmittance;\n		}\n	}\n	vec4 getIBLVolumeRefraction( const in vec3 n, const in vec3 v, const in float roughness, const in vec3 diffuseColor,\n		const in vec3 specularColor, const in float specularF90, const in vec3 position, const in mat4 modelMatrix,\n		const in mat4 viewMatrix, const in mat4 projMatrix, const in float dispersion, const in float ior, const in float thickness,\n		const in vec3 attenuationColor, const in float attenuationDistance ) {\n		vec4 transmittedLight;\n		vec3 transmittance;\n		#ifdef USE_DISPERSION\n			float halfSpread = ( ior - 1.0 ) * 0.025 * dispersion;\n			vec3 iors = vec3( ior - halfSpread, ior, ior + halfSpread );\n			for ( int i = 0; i < 3; i ++ ) {\n				vec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, iors[ i ], modelMatrix );\n				vec3 refractedRayExit = position + transmissionRay;\n		\n				vec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n				vec2 refractionCoords = ndcPos.xy / ndcPos.w;\n				refractionCoords += 1.0;\n				refractionCoords /= 2.0;\n		\n				vec4 transmissionSample = getTransmissionSample( refractionCoords, roughness, iors[ i ] );\n				transmittedLight[ i ] = transmissionSample[ i ];\n				transmittedLight.a += transmissionSample.a;\n				transmittance[ i ] = diffuseColor[ i ] * volumeAttenuation( length( transmissionRay ), attenuationColor, attenuationDistance )[ i ];\n			}\n			transmittedLight.a /= 3.0;\n		\n		#else\n		\n			vec3 transmissionRay = getVolumeTransmissionRay( n, v, thickness, ior, modelMatrix );\n			vec3 refractedRayExit = position + transmissionRay;\n			vec4 ndcPos = projMatrix * viewMatrix * vec4( refractedRayExit, 1.0 );\n			vec2 refractionCoords = ndcPos.xy / ndcPos.w;\n			refractionCoords += 1.0;\n			refractionCoords /= 2.0;\n			transmittedLight = getTransmissionSample( refractionCoords, roughness, ior );\n			transmittance = diffuseColor * volumeAttenuation( length( transmissionRay ), attenuationColor, attenuationDistance );\n		\n		#endif\n		vec3 attenuatedColor = transmittance * transmittedLight.rgb;\n		vec3 F = EnvironmentBRDF( n, v, specularColor, specularF90, roughness );\n		float transmittanceFactor = ( transmittance.r + transmittance.g + transmittance.b ) / 3.0;\n		return vec4( ( 1.0 - F ) * attenuatedColor, 1.0 - ( 1.0 - transmittedLight.a ) * transmittanceFactor );\n	}\n#endif";
var uv_pars_fragment = "#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n	varying vec2 vUv;\n#endif\n#ifdef USE_MAP\n	varying vec2 vMapUv;\n#endif\n#ifdef USE_ALPHAMAP\n	varying vec2 vAlphaMapUv;\n#endif\n#ifdef USE_LIGHTMAP\n	varying vec2 vLightMapUv;\n#endif\n#ifdef USE_AOMAP\n	varying vec2 vAoMapUv;\n#endif\n#ifdef USE_BUMPMAP\n	varying vec2 vBumpMapUv;\n#endif\n#ifdef USE_NORMALMAP\n	varying vec2 vNormalMapUv;\n#endif\n#ifdef USE_EMISSIVEMAP\n	varying vec2 vEmissiveMapUv;\n#endif\n#ifdef USE_METALNESSMAP\n	varying vec2 vMetalnessMapUv;\n#endif\n#ifdef USE_ROUGHNESSMAP\n	varying vec2 vRoughnessMapUv;\n#endif\n#ifdef USE_ANISOTROPYMAP\n	varying vec2 vAnisotropyMapUv;\n#endif\n#ifdef USE_CLEARCOATMAP\n	varying vec2 vClearcoatMapUv;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n	varying vec2 vClearcoatNormalMapUv;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n	varying vec2 vClearcoatRoughnessMapUv;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n	varying vec2 vIridescenceMapUv;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n	varying vec2 vIridescenceThicknessMapUv;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n	varying vec2 vSheenColorMapUv;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n	varying vec2 vSheenRoughnessMapUv;\n#endif\n#ifdef USE_SPECULARMAP\n	varying vec2 vSpecularMapUv;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n	varying vec2 vSpecularColorMapUv;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n	varying vec2 vSpecularIntensityMapUv;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n	uniform mat3 transmissionMapTransform;\n	varying vec2 vTransmissionMapUv;\n#endif\n#ifdef USE_THICKNESSMAP\n	uniform mat3 thicknessMapTransform;\n	varying vec2 vThicknessMapUv;\n#endif";
var uv_pars_vertex = "#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n	varying vec2 vUv;\n#endif\n#ifdef USE_MAP\n	uniform mat3 mapTransform;\n	varying vec2 vMapUv;\n#endif\n#ifdef USE_ALPHAMAP\n	uniform mat3 alphaMapTransform;\n	varying vec2 vAlphaMapUv;\n#endif\n#ifdef USE_LIGHTMAP\n	uniform mat3 lightMapTransform;\n	varying vec2 vLightMapUv;\n#endif\n#ifdef USE_AOMAP\n	uniform mat3 aoMapTransform;\n	varying vec2 vAoMapUv;\n#endif\n#ifdef USE_BUMPMAP\n	uniform mat3 bumpMapTransform;\n	varying vec2 vBumpMapUv;\n#endif\n#ifdef USE_NORMALMAP\n	uniform mat3 normalMapTransform;\n	varying vec2 vNormalMapUv;\n#endif\n#ifdef USE_DISPLACEMENTMAP\n	uniform mat3 displacementMapTransform;\n	varying vec2 vDisplacementMapUv;\n#endif\n#ifdef USE_EMISSIVEMAP\n	uniform mat3 emissiveMapTransform;\n	varying vec2 vEmissiveMapUv;\n#endif\n#ifdef USE_METALNESSMAP\n	uniform mat3 metalnessMapTransform;\n	varying vec2 vMetalnessMapUv;\n#endif\n#ifdef USE_ROUGHNESSMAP\n	uniform mat3 roughnessMapTransform;\n	varying vec2 vRoughnessMapUv;\n#endif\n#ifdef USE_ANISOTROPYMAP\n	uniform mat3 anisotropyMapTransform;\n	varying vec2 vAnisotropyMapUv;\n#endif\n#ifdef USE_CLEARCOATMAP\n	uniform mat3 clearcoatMapTransform;\n	varying vec2 vClearcoatMapUv;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n	uniform mat3 clearcoatNormalMapTransform;\n	varying vec2 vClearcoatNormalMapUv;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n	uniform mat3 clearcoatRoughnessMapTransform;\n	varying vec2 vClearcoatRoughnessMapUv;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n	uniform mat3 sheenColorMapTransform;\n	varying vec2 vSheenColorMapUv;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n	uniform mat3 sheenRoughnessMapTransform;\n	varying vec2 vSheenRoughnessMapUv;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n	uniform mat3 iridescenceMapTransform;\n	varying vec2 vIridescenceMapUv;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n	uniform mat3 iridescenceThicknessMapTransform;\n	varying vec2 vIridescenceThicknessMapUv;\n#endif\n#ifdef USE_SPECULARMAP\n	uniform mat3 specularMapTransform;\n	varying vec2 vSpecularMapUv;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n	uniform mat3 specularColorMapTransform;\n	varying vec2 vSpecularColorMapUv;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n	uniform mat3 specularIntensityMapTransform;\n	varying vec2 vSpecularIntensityMapUv;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n	uniform mat3 transmissionMapTransform;\n	varying vec2 vTransmissionMapUv;\n#endif\n#ifdef USE_THICKNESSMAP\n	uniform mat3 thicknessMapTransform;\n	varying vec2 vThicknessMapUv;\n#endif";
var uv_vertex = "#if defined( USE_UV ) || defined( USE_ANISOTROPY )\n	vUv = vec3( uv, 1 ).xy;\n#endif\n#ifdef USE_MAP\n	vMapUv = ( mapTransform * vec3( MAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ALPHAMAP\n	vAlphaMapUv = ( alphaMapTransform * vec3( ALPHAMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_LIGHTMAP\n	vLightMapUv = ( lightMapTransform * vec3( LIGHTMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_AOMAP\n	vAoMapUv = ( aoMapTransform * vec3( AOMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_BUMPMAP\n	vBumpMapUv = ( bumpMapTransform * vec3( BUMPMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_NORMALMAP\n	vNormalMapUv = ( normalMapTransform * vec3( NORMALMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_DISPLACEMENTMAP\n	vDisplacementMapUv = ( displacementMapTransform * vec3( DISPLACEMENTMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_EMISSIVEMAP\n	vEmissiveMapUv = ( emissiveMapTransform * vec3( EMISSIVEMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_METALNESSMAP\n	vMetalnessMapUv = ( metalnessMapTransform * vec3( METALNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ROUGHNESSMAP\n	vRoughnessMapUv = ( roughnessMapTransform * vec3( ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_ANISOTROPYMAP\n	vAnisotropyMapUv = ( anisotropyMapTransform * vec3( ANISOTROPYMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOATMAP\n	vClearcoatMapUv = ( clearcoatMapTransform * vec3( CLEARCOATMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n	vClearcoatNormalMapUv = ( clearcoatNormalMapTransform * vec3( CLEARCOAT_NORMALMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n	vClearcoatRoughnessMapUv = ( clearcoatRoughnessMapTransform * vec3( CLEARCOAT_ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_IRIDESCENCEMAP\n	vIridescenceMapUv = ( iridescenceMapTransform * vec3( IRIDESCENCEMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_IRIDESCENCE_THICKNESSMAP\n	vIridescenceThicknessMapUv = ( iridescenceThicknessMapTransform * vec3( IRIDESCENCE_THICKNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SHEEN_COLORMAP\n	vSheenColorMapUv = ( sheenColorMapTransform * vec3( SHEEN_COLORMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SHEEN_ROUGHNESSMAP\n	vSheenRoughnessMapUv = ( sheenRoughnessMapTransform * vec3( SHEEN_ROUGHNESSMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULARMAP\n	vSpecularMapUv = ( specularMapTransform * vec3( SPECULARMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULAR_COLORMAP\n	vSpecularColorMapUv = ( specularColorMapTransform * vec3( SPECULAR_COLORMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_SPECULAR_INTENSITYMAP\n	vSpecularIntensityMapUv = ( specularIntensityMapTransform * vec3( SPECULAR_INTENSITYMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_TRANSMISSIONMAP\n	vTransmissionMapUv = ( transmissionMapTransform * vec3( TRANSMISSIONMAP_UV, 1 ) ).xy;\n#endif\n#ifdef USE_THICKNESSMAP\n	vThicknessMapUv = ( thicknessMapTransform * vec3( THICKNESSMAP_UV, 1 ) ).xy;\n#endif";
var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP ) || defined ( USE_TRANSMISSION ) || NUM_SPOT_LIGHT_COORDS > 0\n	vec4 worldPosition = vec4( transformed, 1.0 );\n	#ifdef USE_BATCHING\n		worldPosition = batchingMatrix * worldPosition;\n	#endif\n	#ifdef USE_INSTANCING\n		worldPosition = instanceMatrix * worldPosition;\n	#endif\n	worldPosition = modelMatrix * worldPosition;\n#endif";
var vertex$h = "varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n	vUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n	gl_Position = vec4( position.xy, 1.0, 1.0 );\n}";
var fragment$h = "uniform sampler2D t2D;\nuniform float backgroundIntensity;\nvarying vec2 vUv;\nvoid main() {\n	vec4 texColor = texture2D( t2D, vUv );\n	#ifdef DECODE_VIDEO_TEXTURE\n		texColor = vec4( mix( pow( texColor.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), texColor.rgb * 0.0773993808, vec3( lessThanEqual( texColor.rgb, vec3( 0.04045 ) ) ) ), texColor.w );\n	#endif\n	texColor.rgb *= backgroundIntensity;\n	gl_FragColor = texColor;\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n}";
var vertex$g = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n	vWorldDirection = transformDirection( position, modelMatrix );\n	#include <begin_vertex>\n	#include <project_vertex>\n	gl_Position.z = gl_Position.w;\n}";
var fragment$g = "#ifdef ENVMAP_TYPE_CUBE\n	uniform samplerCube envMap;\n#elif defined( ENVMAP_TYPE_CUBE_UV )\n	uniform sampler2D envMap;\n#endif\nuniform float flipEnvMap;\nuniform float backgroundBlurriness;\nuniform float backgroundIntensity;\nuniform mat3 backgroundRotation;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n	#ifdef ENVMAP_TYPE_CUBE\n		vec4 texColor = textureCube( envMap, backgroundRotation * vec3( flipEnvMap * vWorldDirection.x, vWorldDirection.yz ) );\n	#elif defined( ENVMAP_TYPE_CUBE_UV )\n		vec4 texColor = textureCubeUV( envMap, backgroundRotation * vWorldDirection, backgroundBlurriness );\n	#else\n		vec4 texColor = vec4( 0.0, 0.0, 0.0, 1.0 );\n	#endif\n	texColor.rgb *= backgroundIntensity;\n	gl_FragColor = texColor;\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n}";
var vertex$f = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n	vWorldDirection = transformDirection( position, modelMatrix );\n	#include <begin_vertex>\n	#include <project_vertex>\n	gl_Position.z = gl_Position.w;\n}";
var fragment$f = "uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldDirection;\nvoid main() {\n	vec4 texColor = textureCube( tCube, vec3( tFlip * vWorldDirection.x, vWorldDirection.yz ) );\n	gl_FragColor = texColor;\n	gl_FragColor.a *= opacity;\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n}";
var vertex$e = "#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n	#include <uv_vertex>\n	#include <batching_vertex>\n	#include <skinbase_vertex>\n	#include <morphinstance_vertex>\n	#ifdef USE_DISPLACEMENTMAP\n		#include <beginnormal_vertex>\n		#include <morphnormal_vertex>\n		#include <skinnormal_vertex>\n	#endif\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <displacementmap_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	vHighPrecisionZW = gl_Position.zw;\n}";
var fragment$e = "#if DEPTH_PACKING == 3200\n	uniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n	vec4 diffuseColor = vec4( 1.0 );\n	#include <clipping_planes_fragment>\n	#if DEPTH_PACKING == 3200\n		diffuseColor.a = opacity;\n	#endif\n	#include <map_fragment>\n	#include <alphamap_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	#include <logdepthbuf_fragment>\n	float fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n	#if DEPTH_PACKING == 3200\n		gl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n	#elif DEPTH_PACKING == 3201\n		gl_FragColor = packDepthToRGBA( fragCoordZ );\n	#elif DEPTH_PACKING == 3202\n		gl_FragColor = vec4( packDepthToRGB( fragCoordZ ), 1.0 );\n	#elif DEPTH_PACKING == 3203\n		gl_FragColor = vec4( packDepthToRG( fragCoordZ ), 0.0, 1.0 );\n	#endif\n}";
var vertex$d = "#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	#include <uv_vertex>\n	#include <batching_vertex>\n	#include <skinbase_vertex>\n	#include <morphinstance_vertex>\n	#ifdef USE_DISPLACEMENTMAP\n		#include <beginnormal_vertex>\n		#include <morphnormal_vertex>\n		#include <skinnormal_vertex>\n	#endif\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <displacementmap_vertex>\n	#include <project_vertex>\n	#include <worldpos_vertex>\n	#include <clipping_planes_vertex>\n	vWorldPosition = worldPosition.xyz;\n}";
var fragment$d = "#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n	vec4 diffuseColor = vec4( 1.0 );\n	#include <clipping_planes_fragment>\n	#include <map_fragment>\n	#include <alphamap_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	float dist = length( vWorldPosition - referencePosition );\n	dist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n	dist = saturate( dist );\n	gl_FragColor = packDepthToRGBA( dist );\n}";
var vertex$c = "varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n	vWorldDirection = transformDirection( position, modelMatrix );\n	#include <begin_vertex>\n	#include <project_vertex>\n}";
var fragment$c = "uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n	vec3 direction = normalize( vWorldDirection );\n	vec2 sampleUV = equirectUv( direction );\n	gl_FragColor = texture2D( tEquirect, sampleUV );\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n}";
var vertex$b = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	vLineDistance = scale * lineDistance;\n	#include <uv_vertex>\n	#include <color_vertex>\n	#include <morphinstance_vertex>\n	#include <morphcolor_vertex>\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	#include <fog_vertex>\n}";
var fragment$b = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( diffuse, opacity );\n	#include <clipping_planes_fragment>\n	if ( mod( vLineDistance, totalSize ) > dashSize ) {\n		discard;\n	}\n	vec3 outgoingLight = vec3( 0.0 );\n	#include <logdepthbuf_fragment>\n	#include <map_fragment>\n	#include <color_fragment>\n	outgoingLight = diffuseColor.rgb;\n	#include <opaque_fragment>\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n	#include <premultiplied_alpha_fragment>\n}";
var vertex$a = "#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	#include <uv_vertex>\n	#include <color_vertex>\n	#include <morphinstance_vertex>\n	#include <morphcolor_vertex>\n	#include <batching_vertex>\n	#if defined ( USE_ENVMAP ) || defined ( USE_SKINNING )\n		#include <beginnormal_vertex>\n		#include <morphnormal_vertex>\n		#include <skinbase_vertex>\n		#include <skinnormal_vertex>\n		#include <defaultnormal_vertex>\n	#endif\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	#include <worldpos_vertex>\n	#include <envmap_vertex>\n	#include <fog_vertex>\n}";
var fragment$a = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n	varying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( diffuse, opacity );\n	#include <clipping_planes_fragment>\n	#include <logdepthbuf_fragment>\n	#include <map_fragment>\n	#include <color_fragment>\n	#include <alphamap_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	#include <specularmap_fragment>\n	ReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n	#ifdef USE_LIGHTMAP\n		vec4 lightMapTexel = texture2D( lightMap, vLightMapUv );\n		reflectedLight.indirectDiffuse += lightMapTexel.rgb * lightMapIntensity * RECIPROCAL_PI;\n	#else\n		reflectedLight.indirectDiffuse += vec3( 1.0 );\n	#endif\n	#include <aomap_fragment>\n	reflectedLight.indirectDiffuse *= diffuseColor.rgb;\n	vec3 outgoingLight = reflectedLight.indirectDiffuse;\n	#include <envmap_fragment>\n	#include <opaque_fragment>\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n	#include <premultiplied_alpha_fragment>\n	#include <dithering_fragment>\n}";
var vertex$9 = "#define LAMBERT\nvarying vec3 vViewPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	#include <uv_vertex>\n	#include <color_vertex>\n	#include <morphinstance_vertex>\n	#include <morphcolor_vertex>\n	#include <batching_vertex>\n	#include <beginnormal_vertex>\n	#include <morphnormal_vertex>\n	#include <skinbase_vertex>\n	#include <skinnormal_vertex>\n	#include <defaultnormal_vertex>\n	#include <normal_vertex>\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <displacementmap_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	vViewPosition = - mvPosition.xyz;\n	#include <worldpos_vertex>\n	#include <envmap_vertex>\n	#include <shadowmap_vertex>\n	#include <fog_vertex>\n}";
var fragment$9 = "#define LAMBERT\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_lambert_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( diffuse, opacity );\n	#include <clipping_planes_fragment>\n	ReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n	vec3 totalEmissiveRadiance = emissive;\n	#include <logdepthbuf_fragment>\n	#include <map_fragment>\n	#include <color_fragment>\n	#include <alphamap_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	#include <specularmap_fragment>\n	#include <normal_fragment_begin>\n	#include <normal_fragment_maps>\n	#include <emissivemap_fragment>\n	#include <lights_lambert_fragment>\n	#include <lights_fragment_begin>\n	#include <lights_fragment_maps>\n	#include <lights_fragment_end>\n	#include <aomap_fragment>\n	vec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n	#include <envmap_fragment>\n	#include <opaque_fragment>\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n	#include <premultiplied_alpha_fragment>\n	#include <dithering_fragment>\n}";
var vertex$8 = "#define MATCAP\nvarying vec3 vViewPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	#include <uv_vertex>\n	#include <color_vertex>\n	#include <morphinstance_vertex>\n	#include <morphcolor_vertex>\n	#include <batching_vertex>\n	#include <beginnormal_vertex>\n	#include <morphnormal_vertex>\n	#include <skinbase_vertex>\n	#include <skinnormal_vertex>\n	#include <defaultnormal_vertex>\n	#include <normal_vertex>\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <displacementmap_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	#include <fog_vertex>\n	vViewPosition = - mvPosition.xyz;\n}";
var fragment$8 = "#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <fog_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( diffuse, opacity );\n	#include <clipping_planes_fragment>\n	#include <logdepthbuf_fragment>\n	#include <map_fragment>\n	#include <color_fragment>\n	#include <alphamap_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	#include <normal_fragment_begin>\n	#include <normal_fragment_maps>\n	vec3 viewDir = normalize( vViewPosition );\n	vec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n	vec3 y = cross( viewDir, x );\n	vec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n	#ifdef USE_MATCAP\n		vec4 matcapColor = texture2D( matcap, uv );\n	#else\n		vec4 matcapColor = vec4( vec3( mix( 0.2, 0.8, uv.y ) ), 1.0 );\n	#endif\n	vec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n	#include <opaque_fragment>\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n	#include <premultiplied_alpha_fragment>\n	#include <dithering_fragment>\n}";
var vertex$7 = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n	varying vec3 vViewPosition;\n#endif\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	#include <uv_vertex>\n	#include <batching_vertex>\n	#include <beginnormal_vertex>\n	#include <morphinstance_vertex>\n	#include <morphnormal_vertex>\n	#include <skinbase_vertex>\n	#include <skinnormal_vertex>\n	#include <defaultnormal_vertex>\n	#include <normal_vertex>\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <displacementmap_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n	vViewPosition = - mvPosition.xyz;\n#endif\n}";
var fragment$7 = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP_TANGENTSPACE )\n	varying vec3 vViewPosition;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <normal_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( 0.0, 0.0, 0.0, opacity );\n	#include <clipping_planes_fragment>\n	#include <logdepthbuf_fragment>\n	#include <normal_fragment_begin>\n	#include <normal_fragment_maps>\n	gl_FragColor = vec4( packNormalToRGB( normal ), diffuseColor.a );\n	#ifdef OPAQUE\n		gl_FragColor.a = 1.0;\n	#endif\n}";
var vertex$6 = "#define PHONG\nvarying vec3 vViewPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	#include <uv_vertex>\n	#include <color_vertex>\n	#include <morphcolor_vertex>\n	#include <batching_vertex>\n	#include <beginnormal_vertex>\n	#include <morphinstance_vertex>\n	#include <morphnormal_vertex>\n	#include <skinbase_vertex>\n	#include <skinnormal_vertex>\n	#include <defaultnormal_vertex>\n	#include <normal_vertex>\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <displacementmap_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	vViewPosition = - mvPosition.xyz;\n	#include <worldpos_vertex>\n	#include <envmap_vertex>\n	#include <shadowmap_vertex>\n	#include <fog_vertex>\n}";
var fragment$6 = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( diffuse, opacity );\n	#include <clipping_planes_fragment>\n	ReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n	vec3 totalEmissiveRadiance = emissive;\n	#include <logdepthbuf_fragment>\n	#include <map_fragment>\n	#include <color_fragment>\n	#include <alphamap_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	#include <specularmap_fragment>\n	#include <normal_fragment_begin>\n	#include <normal_fragment_maps>\n	#include <emissivemap_fragment>\n	#include <lights_phong_fragment>\n	#include <lights_fragment_begin>\n	#include <lights_fragment_maps>\n	#include <lights_fragment_end>\n	#include <aomap_fragment>\n	vec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n	#include <envmap_fragment>\n	#include <opaque_fragment>\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n	#include <premultiplied_alpha_fragment>\n	#include <dithering_fragment>\n}";
var vertex$5 = "#define STANDARD\nvarying vec3 vViewPosition;\n#ifdef USE_TRANSMISSION\n	varying vec3 vWorldPosition;\n#endif\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	#include <uv_vertex>\n	#include <color_vertex>\n	#include <morphinstance_vertex>\n	#include <morphcolor_vertex>\n	#include <batching_vertex>\n	#include <beginnormal_vertex>\n	#include <morphnormal_vertex>\n	#include <skinbase_vertex>\n	#include <skinnormal_vertex>\n	#include <defaultnormal_vertex>\n	#include <normal_vertex>\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <displacementmap_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	vViewPosition = - mvPosition.xyz;\n	#include <worldpos_vertex>\n	#include <shadowmap_vertex>\n	#include <fog_vertex>\n#ifdef USE_TRANSMISSION\n	vWorldPosition = worldPosition.xyz;\n#endif\n}";
var fragment$5 = "#define STANDARD\n#ifdef PHYSICAL\n	#define IOR\n	#define USE_SPECULAR\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef IOR\n	uniform float ior;\n#endif\n#ifdef USE_SPECULAR\n	uniform float specularIntensity;\n	uniform vec3 specularColor;\n	#ifdef USE_SPECULAR_COLORMAP\n		uniform sampler2D specularColorMap;\n	#endif\n	#ifdef USE_SPECULAR_INTENSITYMAP\n		uniform sampler2D specularIntensityMap;\n	#endif\n#endif\n#ifdef USE_CLEARCOAT\n	uniform float clearcoat;\n	uniform float clearcoatRoughness;\n#endif\n#ifdef USE_DISPERSION\n	uniform float dispersion;\n#endif\n#ifdef USE_IRIDESCENCE\n	uniform float iridescence;\n	uniform float iridescenceIOR;\n	uniform float iridescenceThicknessMinimum;\n	uniform float iridescenceThicknessMaximum;\n#endif\n#ifdef USE_SHEEN\n	uniform vec3 sheenColor;\n	uniform float sheenRoughness;\n	#ifdef USE_SHEEN_COLORMAP\n		uniform sampler2D sheenColorMap;\n	#endif\n	#ifdef USE_SHEEN_ROUGHNESSMAP\n		uniform sampler2D sheenRoughnessMap;\n	#endif\n#endif\n#ifdef USE_ANISOTROPY\n	uniform vec2 anisotropyVector;\n	#ifdef USE_ANISOTROPYMAP\n		uniform sampler2D anisotropyMap;\n	#endif\n#endif\nvarying vec3 vViewPosition;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <iridescence_fragment>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_physical_pars_fragment>\n#include <transmission_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <iridescence_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( diffuse, opacity );\n	#include <clipping_planes_fragment>\n	ReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n	vec3 totalEmissiveRadiance = emissive;\n	#include <logdepthbuf_fragment>\n	#include <map_fragment>\n	#include <color_fragment>\n	#include <alphamap_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	#include <roughnessmap_fragment>\n	#include <metalnessmap_fragment>\n	#include <normal_fragment_begin>\n	#include <normal_fragment_maps>\n	#include <clearcoat_normal_fragment_begin>\n	#include <clearcoat_normal_fragment_maps>\n	#include <emissivemap_fragment>\n	#include <lights_physical_fragment>\n	#include <lights_fragment_begin>\n	#include <lights_fragment_maps>\n	#include <lights_fragment_end>\n	#include <aomap_fragment>\n	vec3 totalDiffuse = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse;\n	vec3 totalSpecular = reflectedLight.directSpecular + reflectedLight.indirectSpecular;\n	#include <transmission_fragment>\n	vec3 outgoingLight = totalDiffuse + totalSpecular + totalEmissiveRadiance;\n	#ifdef USE_SHEEN\n		float sheenEnergyComp = 1.0 - 0.157 * max3( material.sheenColor );\n		outgoingLight = outgoingLight * sheenEnergyComp + sheenSpecularDirect + sheenSpecularIndirect;\n	#endif\n	#ifdef USE_CLEARCOAT\n		float dotNVcc = saturate( dot( geometryClearcoatNormal, geometryViewDir ) );\n		vec3 Fcc = F_Schlick( material.clearcoatF0, material.clearcoatF90, dotNVcc );\n		outgoingLight = outgoingLight * ( 1.0 - material.clearcoat * Fcc ) + ( clearcoatSpecularDirect + clearcoatSpecularIndirect ) * material.clearcoat;\n	#endif\n	#include <opaque_fragment>\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n	#include <premultiplied_alpha_fragment>\n	#include <dithering_fragment>\n}";
var vertex$4 = "#define TOON\nvarying vec3 vViewPosition;\n#include <common>\n#include <batching_pars_vertex>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <normal_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	#include <uv_vertex>\n	#include <color_vertex>\n	#include <morphinstance_vertex>\n	#include <morphcolor_vertex>\n	#include <batching_vertex>\n	#include <beginnormal_vertex>\n	#include <morphnormal_vertex>\n	#include <skinbase_vertex>\n	#include <skinnormal_vertex>\n	#include <defaultnormal_vertex>\n	#include <normal_vertex>\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <displacementmap_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	vViewPosition = - mvPosition.xyz;\n	#include <worldpos_vertex>\n	#include <shadowmap_vertex>\n	#include <fog_vertex>\n}";
var fragment$4 = "#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <normal_pars_fragment>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( diffuse, opacity );\n	#include <clipping_planes_fragment>\n	ReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n	vec3 totalEmissiveRadiance = emissive;\n	#include <logdepthbuf_fragment>\n	#include <map_fragment>\n	#include <color_fragment>\n	#include <alphamap_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	#include <normal_fragment_begin>\n	#include <normal_fragment_maps>\n	#include <emissivemap_fragment>\n	#include <lights_toon_fragment>\n	#include <lights_fragment_begin>\n	#include <lights_fragment_maps>\n	#include <lights_fragment_end>\n	#include <aomap_fragment>\n	vec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n	#include <opaque_fragment>\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n	#include <premultiplied_alpha_fragment>\n	#include <dithering_fragment>\n}";
var vertex$3 = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\n#ifdef USE_POINTS_UV\n	varying vec2 vUv;\n	uniform mat3 uvTransform;\n#endif\nvoid main() {\n	#ifdef USE_POINTS_UV\n		vUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n	#endif\n	#include <color_vertex>\n	#include <morphinstance_vertex>\n	#include <morphcolor_vertex>\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <project_vertex>\n	gl_PointSize = size;\n	#ifdef USE_SIZEATTENUATION\n		bool isPerspective = isPerspectiveMatrix( projectionMatrix );\n		if ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n	#endif\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	#include <worldpos_vertex>\n	#include <fog_vertex>\n}";
var fragment$3 = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( diffuse, opacity );\n	#include <clipping_planes_fragment>\n	vec3 outgoingLight = vec3( 0.0 );\n	#include <logdepthbuf_fragment>\n	#include <map_particle_fragment>\n	#include <color_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	outgoingLight = diffuseColor.rgb;\n	#include <opaque_fragment>\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n	#include <premultiplied_alpha_fragment>\n}";
var vertex$2 = "#include <common>\n#include <batching_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n	#include <batching_vertex>\n	#include <beginnormal_vertex>\n	#include <morphinstance_vertex>\n	#include <morphnormal_vertex>\n	#include <skinbase_vertex>\n	#include <skinnormal_vertex>\n	#include <defaultnormal_vertex>\n	#include <begin_vertex>\n	#include <morphtarget_vertex>\n	#include <skinning_vertex>\n	#include <project_vertex>\n	#include <logdepthbuf_vertex>\n	#include <worldpos_vertex>\n	#include <shadowmap_vertex>\n	#include <fog_vertex>\n}";
var fragment$2 = "uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <logdepthbuf_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n	#include <logdepthbuf_fragment>\n	gl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n}";
var vertex$1 = "uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n	#include <uv_vertex>\n	vec4 mvPosition = modelViewMatrix[ 3 ];\n	vec2 scale = vec2( length( modelMatrix[ 0 ].xyz ), length( modelMatrix[ 1 ].xyz ) );\n	#ifndef USE_SIZEATTENUATION\n		bool isPerspective = isPerspectiveMatrix( projectionMatrix );\n		if ( isPerspective ) scale *= - mvPosition.z;\n	#endif\n	vec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n	vec2 rotatedPosition;\n	rotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n	rotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n	mvPosition.xy += rotatedPosition;\n	gl_Position = projectionMatrix * mvPosition;\n	#include <logdepthbuf_vertex>\n	#include <clipping_planes_vertex>\n	#include <fog_vertex>\n}";
var fragment$1 = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <alphatest_pars_fragment>\n#include <alphahash_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n	vec4 diffuseColor = vec4( diffuse, opacity );\n	#include <clipping_planes_fragment>\n	vec3 outgoingLight = vec3( 0.0 );\n	#include <logdepthbuf_fragment>\n	#include <map_fragment>\n	#include <alphamap_fragment>\n	#include <alphatest_fragment>\n	#include <alphahash_fragment>\n	outgoingLight = diffuseColor.rgb;\n	#include <opaque_fragment>\n	#include <tonemapping_fragment>\n	#include <colorspace_fragment>\n	#include <fog_fragment>\n}";
var ShaderChunk = {
  alphahash_fragment,
  alphahash_pars_fragment,
  alphamap_fragment,
  alphamap_pars_fragment,
  alphatest_fragment,
  alphatest_pars_fragment,
  aomap_fragment,
  aomap_pars_fragment,
  batching_pars_vertex,
  batching_vertex,
  begin_vertex,
  beginnormal_vertex,
  bsdfs,
  iridescence_fragment,
  bumpmap_pars_fragment,
  clipping_planes_fragment,
  clipping_planes_pars_fragment,
  clipping_planes_pars_vertex,
  clipping_planes_vertex,
  color_fragment,
  color_pars_fragment,
  color_pars_vertex,
  color_vertex,
  common,
  cube_uv_reflection_fragment,
  defaultnormal_vertex,
  displacementmap_pars_vertex,
  displacementmap_vertex,
  emissivemap_fragment,
  emissivemap_pars_fragment,
  colorspace_fragment,
  colorspace_pars_fragment,
  envmap_fragment,
  envmap_common_pars_fragment,
  envmap_pars_fragment,
  envmap_pars_vertex,
  envmap_physical_pars_fragment,
  envmap_vertex,
  fog_vertex,
  fog_pars_vertex,
  fog_fragment,
  fog_pars_fragment,
  gradientmap_pars_fragment,
  lightmap_pars_fragment,
  lights_lambert_fragment,
  lights_lambert_pars_fragment,
  lights_pars_begin,
  lights_toon_fragment,
  lights_toon_pars_fragment,
  lights_phong_fragment,
  lights_phong_pars_fragment,
  lights_physical_fragment,
  lights_physical_pars_fragment,
  lights_fragment_begin,
  lights_fragment_maps,
  lights_fragment_end,
  logdepthbuf_fragment,
  logdepthbuf_pars_fragment,
  logdepthbuf_pars_vertex,
  logdepthbuf_vertex,
  map_fragment,
  map_pars_fragment,
  map_particle_fragment,
  map_particle_pars_fragment,
  metalnessmap_fragment,
  metalnessmap_pars_fragment,
  morphinstance_vertex,
  morphcolor_vertex,
  morphnormal_vertex,
  morphtarget_pars_vertex,
  morphtarget_vertex,
  normal_fragment_begin,
  normal_fragment_maps,
  normal_pars_fragment,
  normal_pars_vertex,
  normal_vertex,
  normalmap_pars_fragment,
  clearcoat_normal_fragment_begin,
  clearcoat_normal_fragment_maps,
  clearcoat_pars_fragment,
  iridescence_pars_fragment,
  opaque_fragment,
  packing,
  premultiplied_alpha_fragment,
  project_vertex,
  dithering_fragment,
  dithering_pars_fragment,
  roughnessmap_fragment,
  roughnessmap_pars_fragment,
  shadowmap_pars_fragment,
  shadowmap_pars_vertex,
  shadowmap_vertex,
  shadowmask_pars_fragment,
  skinbase_vertex,
  skinning_pars_vertex,
  skinning_vertex,
  skinnormal_vertex,
  specularmap_fragment,
  specularmap_pars_fragment,
  tonemapping_fragment,
  tonemapping_pars_fragment,
  transmission_fragment,
  transmission_pars_fragment,
  uv_pars_fragment,
  uv_pars_vertex,
  uv_vertex,
  worldpos_vertex,
  background_vert: vertex$h,
  background_frag: fragment$h,
  backgroundCube_vert: vertex$g,
  backgroundCube_frag: fragment$g,
  cube_vert: vertex$f,
  cube_frag: fragment$f,
  depth_vert: vertex$e,
  depth_frag: fragment$e,
  distanceRGBA_vert: vertex$d,
  distanceRGBA_frag: fragment$d,
  equirect_vert: vertex$c,
  equirect_frag: fragment$c,
  linedashed_vert: vertex$b,
  linedashed_frag: fragment$b,
  meshbasic_vert: vertex$a,
  meshbasic_frag: fragment$a,
  meshlambert_vert: vertex$9,
  meshlambert_frag: fragment$9,
  meshmatcap_vert: vertex$8,
  meshmatcap_frag: fragment$8,
  meshnormal_vert: vertex$7,
  meshnormal_frag: fragment$7,
  meshphong_vert: vertex$6,
  meshphong_frag: fragment$6,
  meshphysical_vert: vertex$5,
  meshphysical_frag: fragment$5,
  meshtoon_vert: vertex$4,
  meshtoon_frag: fragment$4,
  points_vert: vertex$3,
  points_frag: fragment$3,
  shadow_vert: vertex$2,
  shadow_frag: fragment$2,
  sprite_vert: vertex$1,
  sprite_frag: fragment$1
};
var UniformsLib = {
  common: {
    diffuse: { value: /* @__PURE__ */ new Color(16777215) },
    opacity: { value: 1 },
    map: { value: null },
    mapTransform: { value: /* @__PURE__ */ new Matrix3() },
    alphaMap: { value: null },
    alphaMapTransform: { value: /* @__PURE__ */ new Matrix3() },
    alphaTest: { value: 0 }
  },
  specularmap: {
    specularMap: { value: null },
    specularMapTransform: { value: /* @__PURE__ */ new Matrix3() }
  },
  envmap: {
    envMap: { value: null },
    envMapRotation: { value: /* @__PURE__ */ new Matrix3() },
    flipEnvMap: { value: -1 },
    reflectivity: { value: 1 },
    // basic, lambert, phong
    ior: { value: 1.5 },
    // physical
    refractionRatio: { value: 0.98 }
    // basic, lambert, phong
  },
  aomap: {
    aoMap: { value: null },
    aoMapIntensity: { value: 1 },
    aoMapTransform: { value: /* @__PURE__ */ new Matrix3() }
  },
  lightmap: {
    lightMap: { value: null },
    lightMapIntensity: { value: 1 },
    lightMapTransform: { value: /* @__PURE__ */ new Matrix3() }
  },
  bumpmap: {
    bumpMap: { value: null },
    bumpMapTransform: { value: /* @__PURE__ */ new Matrix3() },
    bumpScale: { value: 1 }
  },
  normalmap: {
    normalMap: { value: null },
    normalMapTransform: { value: /* @__PURE__ */ new Matrix3() },
    normalScale: { value: /* @__PURE__ */ new Vector2(1, 1) }
  },
  displacementmap: {
    displacementMap: { value: null },
    displacementMapTransform: { value: /* @__PURE__ */ new Matrix3() },
    displacementScale: { value: 1 },
    displacementBias: { value: 0 }
  },
  emissivemap: {
    emissiveMap: { value: null },
    emissiveMapTransform: { value: /* @__PURE__ */ new Matrix3() }
  },
  metalnessmap: {
    metalnessMap: { value: null },
    metalnessMapTransform: { value: /* @__PURE__ */ new Matrix3() }
  },
  roughnessmap: {
    roughnessMap: { value: null },
    roughnessMapTransform: { value: /* @__PURE__ */ new Matrix3() }
  },
  gradientmap: {
    gradientMap: { value: null }
  },
  fog: {
    fogDensity: { value: 25e-5 },
    fogNear: { value: 1 },
    fogFar: { value: 2e3 },
    fogColor: { value: /* @__PURE__ */ new Color(16777215) }
  },
  lights: {
    ambientLightColor: { value: [] },
    lightProbe: { value: [] },
    directionalLights: { value: [], properties: {
      direction: {},
      color: {}
    } },
    directionalLightShadows: { value: [], properties: {
      shadowIntensity: 1,
      shadowBias: {},
      shadowNormalBias: {},
      shadowRadius: {},
      shadowMapSize: {}
    } },
    directionalShadowMap: { value: [] },
    directionalShadowMatrix: { value: [] },
    spotLights: { value: [], properties: {
      color: {},
      position: {},
      direction: {},
      distance: {},
      coneCos: {},
      penumbraCos: {},
      decay: {}
    } },
    spotLightShadows: { value: [], properties: {
      shadowIntensity: 1,
      shadowBias: {},
      shadowNormalBias: {},
      shadowRadius: {},
      shadowMapSize: {}
    } },
    spotLightMap: { value: [] },
    spotShadowMap: { value: [] },
    spotLightMatrix: { value: [] },
    pointLights: { value: [], properties: {
      color: {},
      position: {},
      decay: {},
      distance: {}
    } },
    pointLightShadows: { value: [], properties: {
      shadowIntensity: 1,
      shadowBias: {},
      shadowNormalBias: {},
      shadowRadius: {},
      shadowMapSize: {},
      shadowCameraNear: {},
      shadowCameraFar: {}
    } },
    pointShadowMap: { value: [] },
    pointShadowMatrix: { value: [] },
    hemisphereLights: { value: [], properties: {
      direction: {},
      skyColor: {},
      groundColor: {}
    } },
    // TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
    rectAreaLights: { value: [], properties: {
      color: {},
      position: {},
      width: {},
      height: {}
    } },
    ltc_1: { value: null },
    ltc_2: { value: null }
  },
  points: {
    diffuse: { value: /* @__PURE__ */ new Color(16777215) },
    opacity: { value: 1 },
    size: { value: 1 },
    scale: { value: 1 },
    map: { value: null },
    alphaMap: { value: null },
    alphaMapTransform: { value: /* @__PURE__ */ new Matrix3() },
    alphaTest: { value: 0 },
    uvTransform: { value: /* @__PURE__ */ new Matrix3() }
  },
  sprite: {
    diffuse: { value: /* @__PURE__ */ new Color(16777215) },
    opacity: { value: 1 },
    center: { value: /* @__PURE__ */ new Vector2(0.5, 0.5) },
    rotation: { value: 0 },
    map: { value: null },
    mapTransform: { value: /* @__PURE__ */ new Matrix3() },
    alphaMap: { value: null },
    alphaMapTransform: { value: /* @__PURE__ */ new Matrix3() },
    alphaTest: { value: 0 }
  }
};
var ShaderLib = {
  basic: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.specularmap,
      UniformsLib.envmap,
      UniformsLib.aomap,
      UniformsLib.lightmap,
      UniformsLib.fog
    ]),
    vertexShader: ShaderChunk.meshbasic_vert,
    fragmentShader: ShaderChunk.meshbasic_frag
  },
  lambert: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.specularmap,
      UniformsLib.envmap,
      UniformsLib.aomap,
      UniformsLib.lightmap,
      UniformsLib.emissivemap,
      UniformsLib.bumpmap,
      UniformsLib.normalmap,
      UniformsLib.displacementmap,
      UniformsLib.fog,
      UniformsLib.lights,
      {
        emissive: { value: /* @__PURE__ */ new Color(0) }
      }
    ]),
    vertexShader: ShaderChunk.meshlambert_vert,
    fragmentShader: ShaderChunk.meshlambert_frag
  },
  phong: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.specularmap,
      UniformsLib.envmap,
      UniformsLib.aomap,
      UniformsLib.lightmap,
      UniformsLib.emissivemap,
      UniformsLib.bumpmap,
      UniformsLib.normalmap,
      UniformsLib.displacementmap,
      UniformsLib.fog,
      UniformsLib.lights,
      {
        emissive: { value: /* @__PURE__ */ new Color(0) },
        specular: { value: /* @__PURE__ */ new Color(1118481) },
        shininess: { value: 30 }
      }
    ]),
    vertexShader: ShaderChunk.meshphong_vert,
    fragmentShader: ShaderChunk.meshphong_frag
  },
  standard: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.envmap,
      UniformsLib.aomap,
      UniformsLib.lightmap,
      UniformsLib.emissivemap,
      UniformsLib.bumpmap,
      UniformsLib.normalmap,
      UniformsLib.displacementmap,
      UniformsLib.roughnessmap,
      UniformsLib.metalnessmap,
      UniformsLib.fog,
      UniformsLib.lights,
      {
        emissive: { value: /* @__PURE__ */ new Color(0) },
        roughness: { value: 1 },
        metalness: { value: 0 },
        envMapIntensity: { value: 1 }
      }
    ]),
    vertexShader: ShaderChunk.meshphysical_vert,
    fragmentShader: ShaderChunk.meshphysical_frag
  },
  toon: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.aomap,
      UniformsLib.lightmap,
      UniformsLib.emissivemap,
      UniformsLib.bumpmap,
      UniformsLib.normalmap,
      UniformsLib.displacementmap,
      UniformsLib.gradientmap,
      UniformsLib.fog,
      UniformsLib.lights,
      {
        emissive: { value: /* @__PURE__ */ new Color(0) }
      }
    ]),
    vertexShader: ShaderChunk.meshtoon_vert,
    fragmentShader: ShaderChunk.meshtoon_frag
  },
  matcap: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.bumpmap,
      UniformsLib.normalmap,
      UniformsLib.displacementmap,
      UniformsLib.fog,
      {
        matcap: { value: null }
      }
    ]),
    vertexShader: ShaderChunk.meshmatcap_vert,
    fragmentShader: ShaderChunk.meshmatcap_frag
  },
  points: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.points,
      UniformsLib.fog
    ]),
    vertexShader: ShaderChunk.points_vert,
    fragmentShader: ShaderChunk.points_frag
  },
  dashed: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.fog,
      {
        scale: { value: 1 },
        dashSize: { value: 1 },
        totalSize: { value: 2 }
      }
    ]),
    vertexShader: ShaderChunk.linedashed_vert,
    fragmentShader: ShaderChunk.linedashed_frag
  },
  depth: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.displacementmap
    ]),
    vertexShader: ShaderChunk.depth_vert,
    fragmentShader: ShaderChunk.depth_frag
  },
  normal: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.bumpmap,
      UniformsLib.normalmap,
      UniformsLib.displacementmap,
      {
        opacity: { value: 1 }
      }
    ]),
    vertexShader: ShaderChunk.meshnormal_vert,
    fragmentShader: ShaderChunk.meshnormal_frag
  },
  sprite: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.sprite,
      UniformsLib.fog
    ]),
    vertexShader: ShaderChunk.sprite_vert,
    fragmentShader: ShaderChunk.sprite_frag
  },
  background: {
    uniforms: {
      uvTransform: { value: /* @__PURE__ */ new Matrix3() },
      t2D: { value: null },
      backgroundIntensity: { value: 1 }
    },
    vertexShader: ShaderChunk.background_vert,
    fragmentShader: ShaderChunk.background_frag
  },
  backgroundCube: {
    uniforms: {
      envMap: { value: null },
      flipEnvMap: { value: -1 },
      backgroundBlurriness: { value: 0 },
      backgroundIntensity: { value: 1 },
      backgroundRotation: { value: /* @__PURE__ */ new Matrix3() }
    },
    vertexShader: ShaderChunk.backgroundCube_vert,
    fragmentShader: ShaderChunk.backgroundCube_frag
  },
  cube: {
    uniforms: {
      tCube: { value: null },
      tFlip: { value: -1 },
      opacity: { value: 1 }
    },
    vertexShader: ShaderChunk.cube_vert,
    fragmentShader: ShaderChunk.cube_frag
  },
  equirect: {
    uniforms: {
      tEquirect: { value: null }
    },
    vertexShader: ShaderChunk.equirect_vert,
    fragmentShader: ShaderChunk.equirect_frag
  },
  distanceRGBA: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.common,
      UniformsLib.displacementmap,
      {
        referencePosition: { value: /* @__PURE__ */ new Vector3() },
        nearDistance: { value: 1 },
        farDistance: { value: 1e3 }
      }
    ]),
    vertexShader: ShaderChunk.distanceRGBA_vert,
    fragmentShader: ShaderChunk.distanceRGBA_frag
  },
  shadow: {
    uniforms: /* @__PURE__ */ mergeUniforms([
      UniformsLib.lights,
      UniformsLib.fog,
      {
        color: { value: /* @__PURE__ */ new Color(0) },
        opacity: { value: 1 }
      }
    ]),
    vertexShader: ShaderChunk.shadow_vert,
    fragmentShader: ShaderChunk.shadow_frag
  }
};
ShaderLib.physical = {
  uniforms: /* @__PURE__ */ mergeUniforms([
    ShaderLib.standard.uniforms,
    {
      clearcoat: { value: 0 },
      clearcoatMap: { value: null },
      clearcoatMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      clearcoatNormalMap: { value: null },
      clearcoatNormalMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      clearcoatNormalScale: { value: /* @__PURE__ */ new Vector2(1, 1) },
      clearcoatRoughness: { value: 0 },
      clearcoatRoughnessMap: { value: null },
      clearcoatRoughnessMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      dispersion: { value: 0 },
      iridescence: { value: 0 },
      iridescenceMap: { value: null },
      iridescenceMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      iridescenceIOR: { value: 1.3 },
      iridescenceThicknessMinimum: { value: 100 },
      iridescenceThicknessMaximum: { value: 400 },
      iridescenceThicknessMap: { value: null },
      iridescenceThicknessMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      sheen: { value: 0 },
      sheenColor: { value: /* @__PURE__ */ new Color(0) },
      sheenColorMap: { value: null },
      sheenColorMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      sheenRoughness: { value: 1 },
      sheenRoughnessMap: { value: null },
      sheenRoughnessMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      transmission: { value: 0 },
      transmissionMap: { value: null },
      transmissionMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      transmissionSamplerSize: { value: /* @__PURE__ */ new Vector2() },
      transmissionSamplerMap: { value: null },
      thickness: { value: 0 },
      thicknessMap: { value: null },
      thicknessMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      attenuationDistance: { value: 0 },
      attenuationColor: { value: /* @__PURE__ */ new Color(0) },
      specularColor: { value: /* @__PURE__ */ new Color(1, 1, 1) },
      specularColorMap: { value: null },
      specularColorMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      specularIntensity: { value: 1 },
      specularIntensityMap: { value: null },
      specularIntensityMapTransform: { value: /* @__PURE__ */ new Matrix3() },
      anisotropyVector: { value: /* @__PURE__ */ new Vector2() },
      anisotropyMap: { value: null },
      anisotropyMapTransform: { value: /* @__PURE__ */ new Matrix3() }
    }
  ]),
  vertexShader: ShaderChunk.meshphysical_vert,
  fragmentShader: ShaderChunk.meshphysical_frag
};
var _rgb = { r: 0, b: 0, g: 0 };
var _e1$1 = /* @__PURE__ */ new Euler();
var _m1$12 = /* @__PURE__ */ new Matrix4();
function WebGLBackground(renderer, cubemaps, cubeuvmaps, state, objects, alpha, premultipliedAlpha) {
  const clearColor = new Color(0);
  let clearAlpha = alpha === true ? 0 : 1;
  let planeMesh;
  let boxMesh;
  let currentBackground = null;
  let currentBackgroundVersion = 0;
  let currentTonemapping = null;
  function getBackground(scene) {
    let background = scene.isScene === true ? scene.background : null;
    if (background && background.isTexture) {
      const usePMREM = scene.backgroundBlurriness > 0;
      background = (usePMREM ? cubeuvmaps : cubemaps).get(background);
    }
    return background;
  }
  function render3(scene) {
    let forceClear = false;
    const background = getBackground(scene);
    if (background === null) {
      setClear(clearColor, clearAlpha);
    } else if (background && background.isColor) {
      setClear(background, 1);
      forceClear = true;
    }
    const environmentBlendMode = renderer.xr.getEnvironmentBlendMode();
    if (environmentBlendMode === "additive") {
      state.buffers.color.setClear(0, 0, 0, 1, premultipliedAlpha);
    } else if (environmentBlendMode === "alpha-blend") {
      state.buffers.color.setClear(0, 0, 0, 0, premultipliedAlpha);
    }
    if (renderer.autoClear || forceClear) {
      state.buffers.depth.setTest(true);
      state.buffers.depth.setMask(true);
      state.buffers.color.setMask(true);
      renderer.clear(renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil);
    }
  }
  function addToRenderList(renderList, scene) {
    const background = getBackground(scene);
    if (background && (background.isCubeTexture || background.mapping === CubeUVReflectionMapping)) {
      if (boxMesh === void 0) {
        boxMesh = new Mesh(
          new BoxGeometry(1, 1, 1),
          new ShaderMaterial({
            name: "BackgroundCubeMaterial",
            uniforms: cloneUniforms(ShaderLib.backgroundCube.uniforms),
            vertexShader: ShaderLib.backgroundCube.vertexShader,
            fragmentShader: ShaderLib.backgroundCube.fragmentShader,
            side: BackSide,
            depthTest: false,
            depthWrite: false,
            fog: false
          })
        );
        boxMesh.geometry.deleteAttribute("normal");
        boxMesh.geometry.deleteAttribute("uv");
        boxMesh.onBeforeRender = function(renderer2, scene2, camera) {
          this.matrixWorld.copyPosition(camera.matrixWorld);
        };
        Object.defineProperty(boxMesh.material, "envMap", {
          get: function() {
            return this.uniforms.envMap.value;
          }
        });
        objects.update(boxMesh);
      }
      _e1$1.copy(scene.backgroundRotation);
      _e1$1.x *= -1;
      _e1$1.y *= -1;
      _e1$1.z *= -1;
      if (background.isCubeTexture && background.isRenderTargetTexture === false) {
        _e1$1.y *= -1;
        _e1$1.z *= -1;
      }
      boxMesh.material.uniforms.envMap.value = background;
      boxMesh.material.uniforms.flipEnvMap.value = background.isCubeTexture && background.isRenderTargetTexture === false ? -1 : 1;
      boxMesh.material.uniforms.backgroundBlurriness.value = scene.backgroundBlurriness;
      boxMesh.material.uniforms.backgroundIntensity.value = scene.backgroundIntensity;
      boxMesh.material.uniforms.backgroundRotation.value.setFromMatrix4(_m1$12.makeRotationFromEuler(_e1$1));
      boxMesh.material.toneMapped = ColorManagement.getTransfer(background.colorSpace) !== SRGBTransfer;
      if (currentBackground !== background || currentBackgroundVersion !== background.version || currentTonemapping !== renderer.toneMapping) {
        boxMesh.material.needsUpdate = true;
        currentBackground = background;
        currentBackgroundVersion = background.version;
        currentTonemapping = renderer.toneMapping;
      }
      boxMesh.layers.enableAll();
      renderList.unshift(boxMesh, boxMesh.geometry, boxMesh.material, 0, 0, null);
    } else if (background && background.isTexture) {
      if (planeMesh === void 0) {
        planeMesh = new Mesh(
          new PlaneGeometry(2, 2),
          new ShaderMaterial({
            name: "BackgroundMaterial",
            uniforms: cloneUniforms(ShaderLib.background.uniforms),
            vertexShader: ShaderLib.background.vertexShader,
            fragmentShader: ShaderLib.background.fragmentShader,
            side: FrontSide,
            depthTest: false,
            depthWrite: false,
            fog: false
          })
        );
        planeMesh.geometry.deleteAttribute("normal");
        Object.defineProperty(planeMesh.material, "map", {
          get: function() {
            return this.uniforms.t2D.value;
          }
        });
        objects.update(planeMesh);
      }
      planeMesh.material.uniforms.t2D.value = background;
      planeMesh.material.uniforms.backgroundIntensity.value = scene.backgroundIntensity;
      planeMesh.material.toneMapped = ColorManagement.getTransfer(background.colorSpace) !== SRGBTransfer;
      if (background.matrixAutoUpdate === true) {
        background.updateMatrix();
      }
      planeMesh.material.uniforms.uvTransform.value.copy(background.matrix);
      if (currentBackground !== background || currentBackgroundVersion !== background.version || currentTonemapping !== renderer.toneMapping) {
        planeMesh.material.needsUpdate = true;
        currentBackground = background;
        currentBackgroundVersion = background.version;
        currentTonemapping = renderer.toneMapping;
      }
      planeMesh.layers.enableAll();
      renderList.unshift(planeMesh, planeMesh.geometry, planeMesh.material, 0, 0, null);
    }
  }
  function setClear(color, alpha2) {
    color.getRGB(_rgb, getUnlitUniformColorSpace(renderer));
    state.buffers.color.setClear(_rgb.r, _rgb.g, _rgb.b, alpha2, premultipliedAlpha);
  }
  function dispose() {
    if (boxMesh !== void 0) {
      boxMesh.geometry.dispose();
      boxMesh.material.dispose();
    }
    if (planeMesh !== void 0) {
      planeMesh.geometry.dispose();
      planeMesh.material.dispose();
    }
  }
  return {
    getClearColor: function() {
      return clearColor;
    },
    setClearColor: function(color, alpha2 = 1) {
      clearColor.set(color);
      clearAlpha = alpha2;
      setClear(clearColor, clearAlpha);
    },
    getClearAlpha: function() {
      return clearAlpha;
    },
    setClearAlpha: function(alpha2) {
      clearAlpha = alpha2;
      setClear(clearColor, clearAlpha);
    },
    render: render3,
    addToRenderList,
    dispose
  };
}
function WebGLBindingStates(gl, attributes) {
  const maxVertexAttributes = gl.getParameter(gl.MAX_VERTEX_ATTRIBS);
  const bindingStates = {};
  const defaultState = createBindingState(null);
  let currentState = defaultState;
  let forceUpdate = false;
  function setup(object, material, program, geometry, index) {
    let updateBuffers = false;
    const state = getBindingState(geometry, program, material);
    if (currentState !== state) {
      currentState = state;
      bindVertexArrayObject(currentState.object);
    }
    updateBuffers = needsUpdate(object, geometry, program, index);
    if (updateBuffers) saveCache(object, geometry, program, index);
    if (index !== null) {
      attributes.update(index, gl.ELEMENT_ARRAY_BUFFER);
    }
    if (updateBuffers || forceUpdate) {
      forceUpdate = false;
      setupVertexAttributes(object, material, program, geometry);
      if (index !== null) {
        gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, attributes.get(index).buffer);
      }
    }
  }
  function createVertexArrayObject() {
    return gl.createVertexArray();
  }
  function bindVertexArrayObject(vao) {
    return gl.bindVertexArray(vao);
  }
  function deleteVertexArrayObject(vao) {
    return gl.deleteVertexArray(vao);
  }
  function getBindingState(geometry, program, material) {
    const wireframe = material.wireframe === true;
    let programMap = bindingStates[geometry.id];
    if (programMap === void 0) {
      programMap = {};
      bindingStates[geometry.id] = programMap;
    }
    let stateMap = programMap[program.id];
    if (stateMap === void 0) {
      stateMap = {};
      programMap[program.id] = stateMap;
    }
    let state = stateMap[wireframe];
    if (state === void 0) {
      state = createBindingState(createVertexArrayObject());
      stateMap[wireframe] = state;
    }
    return state;
  }
  function createBindingState(vao) {
    const newAttributes = [];
    const enabledAttributes = [];
    const attributeDivisors = [];
    for (let i = 0; i < maxVertexAttributes; i++) {
      newAttributes[i] = 0;
      enabledAttributes[i] = 0;
      attributeDivisors[i] = 0;
    }
    return {
      // for backward compatibility on non-VAO support browser
      geometry: null,
      program: null,
      wireframe: false,
      newAttributes,
      enabledAttributes,
      attributeDivisors,
      object: vao,
      attributes: {},
      index: null
    };
  }
  function needsUpdate(object, geometry, program, index) {
    const cachedAttributes = currentState.attributes;
    const geometryAttributes = geometry.attributes;
    let attributesNum = 0;
    const programAttributes = program.getAttributes();
    for (const name in programAttributes) {
      const programAttribute = programAttributes[name];
      if (programAttribute.location >= 0) {
        const cachedAttribute = cachedAttributes[name];
        let geometryAttribute = geometryAttributes[name];
        if (geometryAttribute === void 0) {
          if (name === "instanceMatrix" && object.instanceMatrix) geometryAttribute = object.instanceMatrix;
          if (name === "instanceColor" && object.instanceColor) geometryAttribute = object.instanceColor;
        }
        if (cachedAttribute === void 0) return true;
        if (cachedAttribute.attribute !== geometryAttribute) return true;
        if (geometryAttribute && cachedAttribute.data !== geometryAttribute.data) return true;
        attributesNum++;
      }
    }
    if (currentState.attributesNum !== attributesNum) return true;
    if (currentState.index !== index) return true;
    return false;
  }
  function saveCache(object, geometry, program, index) {
    const cache = {};
    const attributes2 = geometry.attributes;
    let attributesNum = 0;
    const programAttributes = program.getAttributes();
    for (const name in programAttributes) {
      const programAttribute = programAttributes[name];
      if (programAttribute.location >= 0) {
        let attribute = attributes2[name];
        if (attribute === void 0) {
          if (name === "instanceMatrix" && object.instanceMatrix) attribute = object.instanceMatrix;
          if (name === "instanceColor" && object.instanceColor) attribute = object.instanceColor;
        }
        const data = {};
        data.attribute = attribute;
        if (attribute && attribute.data) {
          data.data = attribute.data;
        }
        cache[name] = data;
        attributesNum++;
      }
    }
    currentState.attributes = cache;
    currentState.attributesNum = attributesNum;
    currentState.index = index;
  }
  function initAttributes() {
    const newAttributes = currentState.newAttributes;
    for (let i = 0, il = newAttributes.length; i < il; i++) {
      newAttributes[i] = 0;
    }
  }
  function enableAttribute(attribute) {
    enableAttributeAndDivisor(attribute, 0);
  }
  function enableAttributeAndDivisor(attribute, meshPerAttribute) {
    const newAttributes = currentState.newAttributes;
    const enabledAttributes = currentState.enabledAttributes;
    const attributeDivisors = currentState.attributeDivisors;
    newAttributes[attribute] = 1;
    if (enabledAttributes[attribute] === 0) {
      gl.enableVertexAttribArray(attribute);
      enabledAttributes[attribute] = 1;
    }
    if (attributeDivisors[attribute] !== meshPerAttribute) {
      gl.vertexAttribDivisor(attribute, meshPerAttribute);
      attributeDivisors[attribute] = meshPerAttribute;
    }
  }
  function disableUnusedAttributes() {
    const newAttributes = currentState.newAttributes;
    const enabledAttributes = currentState.enabledAttributes;
    for (let i = 0, il = enabledAttributes.length; i < il; i++) {
      if (enabledAttributes[i] !== newAttributes[i]) {
        gl.disableVertexAttribArray(i);
        enabledAttributes[i] = 0;
      }
    }
  }
  function vertexAttribPointer(index, size, type, normalized, stride, offset, integer) {
    if (integer === true) {
      gl.vertexAttribIPointer(index, size, type, stride, offset);
    } else {
      gl.vertexAttribPointer(index, size, type, normalized, stride, offset);
    }
  }
  function setupVertexAttributes(object, material, program, geometry) {
    initAttributes();
    const geometryAttributes = geometry.attributes;
    const programAttributes = program.getAttributes();
    const materialDefaultAttributeValues = material.defaultAttributeValues;
    for (const name in programAttributes) {
      const programAttribute = programAttributes[name];
      if (programAttribute.location >= 0) {
        let geometryAttribute = geometryAttributes[name];
        if (geometryAttribute === void 0) {
          if (name === "instanceMatrix" && object.instanceMatrix) geometryAttribute = object.instanceMatrix;
          if (name === "instanceColor" && object.instanceColor) geometryAttribute = object.instanceColor;
        }
        if (geometryAttribute !== void 0) {
          const normalized = geometryAttribute.normalized;
          const size = geometryAttribute.itemSize;
          const attribute = attributes.get(geometryAttribute);
          if (attribute === void 0) continue;
          const buffer = attribute.buffer;
          const type = attribute.type;
          const bytesPerElement = attribute.bytesPerElement;
          const integer = type === gl.INT || type === gl.UNSIGNED_INT || geometryAttribute.gpuType === IntType;
          if (geometryAttribute.isInterleavedBufferAttribute) {
            const data = geometryAttribute.data;
            const stride = data.stride;
            const offset = geometryAttribute.offset;
            if (data.isInstancedInterleavedBuffer) {
              for (let i = 0; i < programAttribute.locationSize; i++) {
                enableAttributeAndDivisor(programAttribute.location + i, data.meshPerAttribute);
              }
              if (object.isInstancedMesh !== true && geometry._maxInstanceCount === void 0) {
                geometry._maxInstanceCount = data.meshPerAttribute * data.count;
              }
            } else {
              for (let i = 0; i < programAttribute.locationSize; i++) {
                enableAttribute(programAttribute.location + i);
              }
            }
            gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
            for (let i = 0; i < programAttribute.locationSize; i++) {
              vertexAttribPointer(
                programAttribute.location + i,
                size / programAttribute.locationSize,
                type,
                normalized,
                stride * bytesPerElement,
                (offset + size / programAttribute.locationSize * i) * bytesPerElement,
                integer
              );
            }
          } else {
            if (geometryAttribute.isInstancedBufferAttribute) {
              for (let i = 0; i < programAttribute.locationSize; i++) {
                enableAttributeAndDivisor(programAttribute.location + i, geometryAttribute.meshPerAttribute);
              }
              if (object.isInstancedMesh !== true && geometry._maxInstanceCount === void 0) {
                geometry._maxInstanceCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;
              }
            } else {
              for (let i = 0; i < programAttribute.locationSize; i++) {
                enableAttribute(programAttribute.location + i);
              }
            }
            gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
            for (let i = 0; i < programAttribute.locationSize; i++) {
              vertexAttribPointer(
                programAttribute.location + i,
                size / programAttribute.locationSize,
                type,
                normalized,
                size * bytesPerElement,
                size / programAttribute.locationSize * i * bytesPerElement,
                integer
              );
            }
          }
        } else if (materialDefaultAttributeValues !== void 0) {
          const value = materialDefaultAttributeValues[name];
          if (value !== void 0) {
            switch (value.length) {
              case 2:
                gl.vertexAttrib2fv(programAttribute.location, value);
                break;
              case 3:
                gl.vertexAttrib3fv(programAttribute.location, value);
                break;
              case 4:
                gl.vertexAttrib4fv(programAttribute.location, value);
                break;
              default:
                gl.vertexAttrib1fv(programAttribute.location, value);
            }
          }
        }
      }
    }
    disableUnusedAttributes();
  }
  function dispose() {
    reset();
    for (const geometryId in bindingStates) {
      const programMap = bindingStates[geometryId];
      for (const programId in programMap) {
        const stateMap = programMap[programId];
        for (const wireframe in stateMap) {
          deleteVertexArrayObject(stateMap[wireframe].object);
          delete stateMap[wireframe];
        }
        delete programMap[programId];
      }
      delete bindingStates[geometryId];
    }
  }
  function releaseStatesOfGeometry(geometry) {
    if (bindingStates[geometry.id] === void 0) return;
    const programMap = bindingStates[geometry.id];
    for (const programId in programMap) {
      const stateMap = programMap[programId];
      for (const wireframe in stateMap) {
        deleteVertexArrayObject(stateMap[wireframe].object);
        delete stateMap[wireframe];
      }
      delete programMap[programId];
    }
    delete bindingStates[geometry.id];
  }
  function releaseStatesOfProgram(program) {
    for (const geometryId in bindingStates) {
      const programMap = bindingStates[geometryId];
      if (programMap[program.id] === void 0) continue;
      const stateMap = programMap[program.id];
      for (const wireframe in stateMap) {
        deleteVertexArrayObject(stateMap[wireframe].object);
        delete stateMap[wireframe];
      }
      delete programMap[program.id];
    }
  }
  function reset() {
    resetDefaultState();
    forceUpdate = true;
    if (currentState === defaultState) return;
    currentState = defaultState;
    bindVertexArrayObject(currentState.object);
  }
  function resetDefaultState() {
    defaultState.geometry = null;
    defaultState.program = null;
    defaultState.wireframe = false;
  }
  return {
    setup,
    reset,
    resetDefaultState,
    dispose,
    releaseStatesOfGeometry,
    releaseStatesOfProgram,
    initAttributes,
    enableAttribute,
    disableUnusedAttributes
  };
}
function WebGLBufferRenderer(gl, extensions, info) {
  let mode;
  function setMode(value) {
    mode = value;
  }
  function render3(start, count) {
    gl.drawArrays(mode, start, count);
    info.update(count, mode, 1);
  }
  function renderInstances(start, count, primcount) {
    if (primcount === 0) return;
    gl.drawArraysInstanced(mode, start, count, primcount);
    info.update(count, mode, primcount);
  }
  function renderMultiDraw(starts, counts, drawCount) {
    if (drawCount === 0) return;
    const extension = extensions.get("WEBGL_multi_draw");
    extension.multiDrawArraysWEBGL(mode, starts, 0, counts, 0, drawCount);
    let elementCount = 0;
    for (let i = 0; i < drawCount; i++) {
      elementCount += counts[i];
    }
    info.update(elementCount, mode, 1);
  }
  function renderMultiDrawInstances(starts, counts, drawCount, primcount) {
    if (drawCount === 0) return;
    const extension = extensions.get("WEBGL_multi_draw");
    if (extension === null) {
      for (let i = 0; i < starts.length; i++) {
        renderInstances(starts[i], counts[i], primcount[i]);
      }
    } else {
      extension.multiDrawArraysInstancedWEBGL(mode, starts, 0, counts, 0, primcount, 0, drawCount);
      let elementCount = 0;
      for (let i = 0; i < drawCount; i++) {
        elementCount += counts[i] * primcount[i];
      }
      info.update(elementCount, mode, 1);
    }
  }
  this.setMode = setMode;
  this.render = render3;
  this.renderInstances = renderInstances;
  this.renderMultiDraw = renderMultiDraw;
  this.renderMultiDrawInstances = renderMultiDrawInstances;
}
function WebGLCapabilities(gl, extensions, parameters, utils) {
  let maxAnisotropy;
  function getMaxAnisotropy() {
    if (maxAnisotropy !== void 0) return maxAnisotropy;
    if (extensions.has("EXT_texture_filter_anisotropic") === true) {
      const extension = extensions.get("EXT_texture_filter_anisotropic");
      maxAnisotropy = gl.getParameter(extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT);
    } else {
      maxAnisotropy = 0;
    }
    return maxAnisotropy;
  }
  function textureFormatReadable(textureFormat) {
    if (textureFormat !== RGBAFormat && utils.convert(textureFormat) !== gl.getParameter(gl.IMPLEMENTATION_COLOR_READ_FORMAT)) {
      return false;
    }
    return true;
  }
  function textureTypeReadable(textureType) {
    const halfFloatSupportedByExt = textureType === HalfFloatType && (extensions.has("EXT_color_buffer_half_float") || extensions.has("EXT_color_buffer_float"));
    if (textureType !== UnsignedByteType && utils.convert(textureType) !== gl.getParameter(gl.IMPLEMENTATION_COLOR_READ_TYPE) && // Edge and Chrome Mac < 52 (#9513)
    textureType !== FloatType && !halfFloatSupportedByExt) {
      return false;
    }
    return true;
  }
  function getMaxPrecision(precision2) {
    if (precision2 === "highp") {
      if (gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.HIGH_FLOAT).precision > 0 && gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.HIGH_FLOAT).precision > 0) {
        return "highp";
      }
      precision2 = "mediump";
    }
    if (precision2 === "mediump") {
      if (gl.getShaderPrecisionFormat(gl.VERTEX_SHADER, gl.MEDIUM_FLOAT).precision > 0 && gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT).precision > 0) {
        return "mediump";
      }
    }
    return "lowp";
  }
  let precision = parameters.precision !== void 0 ? parameters.precision : "highp";
  const maxPrecision = getMaxPrecision(precision);
  if (maxPrecision !== precision) {
    console.warn("THREE.WebGLRenderer:", precision, "not supported, using", maxPrecision, "instead.");
    precision = maxPrecision;
  }
  const logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true;
  const reverseDepthBuffer = parameters.reverseDepthBuffer === true && extensions.has("EXT_clip_control");
  const maxTextures = gl.getParameter(gl.MAX_TEXTURE_IMAGE_UNITS);
  const maxVertexTextures = gl.getParameter(gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS);
  const maxTextureSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);
  const maxCubemapSize = gl.getParameter(gl.MAX_CUBE_MAP_TEXTURE_SIZE);
  const maxAttributes = gl.getParameter(gl.MAX_VERTEX_ATTRIBS);
  const maxVertexUniforms = gl.getParameter(gl.MAX_VERTEX_UNIFORM_VECTORS);
  const maxVaryings = gl.getParameter(gl.MAX_VARYING_VECTORS);
  const maxFragmentUniforms = gl.getParameter(gl.MAX_FRAGMENT_UNIFORM_VECTORS);
  const vertexTextures = maxVertexTextures > 0;
  const maxSamples = gl.getParameter(gl.MAX_SAMPLES);
  return {
    isWebGL2: true,
    // keeping this for backwards compatibility
    getMaxAnisotropy,
    getMaxPrecision,
    textureFormatReadable,
    textureTypeReadable,
    precision,
    logarithmicDepthBuffer,
    reverseDepthBuffer,
    maxTextures,
    maxVertexTextures,
    maxTextureSize,
    maxCubemapSize,
    maxAttributes,
    maxVertexUniforms,
    maxVaryings,
    maxFragmentUniforms,
    vertexTextures,
    maxSamples
  };
}
function WebGLClipping(properties) {
  const scope = this;
  let globalState = null, numGlobalPlanes = 0, localClippingEnabled = false, renderingShadows = false;
  const plane = new Plane(), viewNormalMatrix = new Matrix3(), uniform = { value: null, needsUpdate: false };
  this.uniform = uniform;
  this.numPlanes = 0;
  this.numIntersection = 0;
  this.init = function(planes, enableLocalClipping) {
    const enabled = planes.length !== 0 || enableLocalClipping || // enable state of previous frame - the clipping code has to
    // run another frame in order to reset the state:
    numGlobalPlanes !== 0 || localClippingEnabled;
    localClippingEnabled = enableLocalClipping;
    numGlobalPlanes = planes.length;
    return enabled;
  };
  this.beginShadows = function() {
    renderingShadows = true;
    projectPlanes(null);
  };
  this.endShadows = function() {
    renderingShadows = false;
  };
  this.setGlobalState = function(planes, camera) {
    globalState = projectPlanes(planes, camera, 0);
  };
  this.setState = function(material, camera, useCache) {
    const planes = material.clippingPlanes, clipIntersection = material.clipIntersection, clipShadows = material.clipShadows;
    const materialProperties = properties.get(material);
    if (!localClippingEnabled || planes === null || planes.length === 0 || renderingShadows && !clipShadows) {
      if (renderingShadows) {
        projectPlanes(null);
      } else {
        resetGlobalState();
      }
    } else {
      const nGlobal = renderingShadows ? 0 : numGlobalPlanes, lGlobal = nGlobal * 4;
      let dstArray = materialProperties.clippingState || null;
      uniform.value = dstArray;
      dstArray = projectPlanes(planes, camera, lGlobal, useCache);
      for (let i = 0; i !== lGlobal; ++i) {
        dstArray[i] = globalState[i];
      }
      materialProperties.clippingState = dstArray;
      this.numIntersection = clipIntersection ? this.numPlanes : 0;
      this.numPlanes += nGlobal;
    }
  };
  function resetGlobalState() {
    if (uniform.value !== globalState) {
      uniform.value = globalState;
      uniform.needsUpdate = numGlobalPlanes > 0;
    }
    scope.numPlanes = numGlobalPlanes;
    scope.numIntersection = 0;
  }
  function projectPlanes(planes, camera, dstOffset, skipTransform) {
    const nPlanes = planes !== null ? planes.length : 0;
    let dstArray = null;
    if (nPlanes !== 0) {
      dstArray = uniform.value;
      if (skipTransform !== true || dstArray === null) {
        const flatSize = dstOffset + nPlanes * 4, viewMatrix = camera.matrixWorldInverse;
        viewNormalMatrix.getNormalMatrix(viewMatrix);
        if (dstArray === null || dstArray.length < flatSize) {
          dstArray = new Float32Array(flatSize);
        }
        for (let i = 0, i4 = dstOffset; i !== nPlanes; ++i, i4 += 4) {
          plane.copy(planes[i]).applyMatrix4(viewMatrix, viewNormalMatrix);
          plane.normal.toArray(dstArray, i4);
          dstArray[i4 + 3] = plane.constant;
        }
      }
      uniform.value = dstArray;
      uniform.needsUpdate = true;
    }
    scope.numPlanes = nPlanes;
    scope.numIntersection = 0;
    return dstArray;
  }
}
function WebGLCubeMaps(renderer) {
  let cubemaps = /* @__PURE__ */ new WeakMap();
  function mapTextureMapping(texture, mapping) {
    if (mapping === EquirectangularReflectionMapping) {
      texture.mapping = CubeReflectionMapping;
    } else if (mapping === EquirectangularRefractionMapping) {
      texture.mapping = CubeRefractionMapping;
    }
    return texture;
  }
  function get(texture) {
    if (texture && texture.isTexture) {
      const mapping = texture.mapping;
      if (mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping) {
        if (cubemaps.has(texture)) {
          const cubemap = cubemaps.get(texture).texture;
          return mapTextureMapping(cubemap, texture.mapping);
        } else {
          const image = texture.image;
          if (image && image.height > 0) {
            const renderTarget = new WebGLCubeRenderTarget(image.height);
            renderTarget.fromEquirectangularTexture(renderer, texture);
            cubemaps.set(texture, renderTarget);
            texture.addEventListener("dispose", onTextureDispose);
            return mapTextureMapping(renderTarget.texture, texture.mapping);
          } else {
            return null;
          }
        }
      }
    }
    return texture;
  }
  function onTextureDispose(event) {
    const texture = event.target;
    texture.removeEventListener("dispose", onTextureDispose);
    const cubemap = cubemaps.get(texture);
    if (cubemap !== void 0) {
      cubemaps.delete(texture);
      cubemap.dispose();
    }
  }
  function dispose() {
    cubemaps = /* @__PURE__ */ new WeakMap();
  }
  return {
    get,
    dispose
  };
}
var LOD_MIN = 4;
var EXTRA_LOD_SIGMA = [0.125, 0.215, 0.35, 0.446, 0.526, 0.582];
var MAX_SAMPLES = 20;
var _flatCamera = /* @__PURE__ */ new OrthographicCamera();
var _clearColor = /* @__PURE__ */ new Color();
var _oldTarget = null;
var _oldActiveCubeFace = 0;
var _oldActiveMipmapLevel = 0;
var _oldXrEnabled = false;
var PHI = (1 + Math.sqrt(5)) / 2;
var INV_PHI = 1 / PHI;
var _axisDirections = [
  /* @__PURE__ */ new Vector3(-PHI, INV_PHI, 0),
  /* @__PURE__ */ new Vector3(PHI, INV_PHI, 0),
  /* @__PURE__ */ new Vector3(-INV_PHI, 0, PHI),
  /* @__PURE__ */ new Vector3(INV_PHI, 0, PHI),
  /* @__PURE__ */ new Vector3(0, PHI, -INV_PHI),
  /* @__PURE__ */ new Vector3(0, PHI, INV_PHI),
  /* @__PURE__ */ new Vector3(-1, 1, -1),
  /* @__PURE__ */ new Vector3(1, 1, -1),
  /* @__PURE__ */ new Vector3(-1, 1, 1),
  /* @__PURE__ */ new Vector3(1, 1, 1)
];
var PMREMGenerator = class {
  constructor(renderer) {
    this._renderer = renderer;
    this._pingPongRenderTarget = null;
    this._lodMax = 0;
    this._cubeSize = 0;
    this._lodPlanes = [];
    this._sizeLods = [];
    this._sigmas = [];
    this._blurMaterial = null;
    this._cubemapMaterial = null;
    this._equirectMaterial = null;
    this._compileMaterial(this._blurMaterial);
  }
  /**
   * Generates a PMREM from a supplied Scene, which can be faster than using an
   * image if networking bandwidth is low. Optional sigma specifies a blur radius
   * in radians to be applied to the scene before PMREM generation. Optional near
   * and far planes ensure the scene is rendered in its entirety (the cubeCamera
   * is placed at the origin).
   */
  fromScene(scene, sigma = 0, near = 0.1, far = 100) {
    _oldTarget = this._renderer.getRenderTarget();
    _oldActiveCubeFace = this._renderer.getActiveCubeFace();
    _oldActiveMipmapLevel = this._renderer.getActiveMipmapLevel();
    _oldXrEnabled = this._renderer.xr.enabled;
    this._renderer.xr.enabled = false;
    this._setSize(256);
    const cubeUVRenderTarget = this._allocateTargets();
    cubeUVRenderTarget.depthBuffer = true;
    this._sceneToCubeUV(scene, near, far, cubeUVRenderTarget);
    if (sigma > 0) {
      this._blur(cubeUVRenderTarget, 0, 0, sigma);
    }
    this._applyPMREM(cubeUVRenderTarget);
    this._cleanup(cubeUVRenderTarget);
    return cubeUVRenderTarget;
  }
  /**
   * Generates a PMREM from an equirectangular texture, which can be either LDR
   * or HDR. The ideal input image size is 1k (1024 x 512),
   * as this matches best with the 256 x 256 cubemap output.
   * The smallest supported equirectangular image size is 64 x 32.
   */
  fromEquirectangular(equirectangular, renderTarget = null) {
    return this._fromTexture(equirectangular, renderTarget);
  }
  /**
   * Generates a PMREM from an cubemap texture, which can be either LDR
   * or HDR. The ideal input cube size is 256 x 256,
   * as this matches best with the 256 x 256 cubemap output.
   * The smallest supported cube size is 16 x 16.
   */
  fromCubemap(cubemap, renderTarget = null) {
    return this._fromTexture(cubemap, renderTarget);
  }
  /**
   * Pre-compiles the cubemap shader. You can get faster start-up by invoking this method during
   * your texture's network fetch for increased concurrency.
   */
  compileCubemapShader() {
    if (this._cubemapMaterial === null) {
      this._cubemapMaterial = _getCubemapMaterial();
      this._compileMaterial(this._cubemapMaterial);
    }
  }
  /**
   * Pre-compiles the equirectangular shader. You can get faster start-up by invoking this method during
   * your texture's network fetch for increased concurrency.
   */
  compileEquirectangularShader() {
    if (this._equirectMaterial === null) {
      this._equirectMaterial = _getEquirectMaterial();
      this._compileMaterial(this._equirectMaterial);
    }
  }
  /**
   * Disposes of the PMREMGenerator's internal memory. Note that PMREMGenerator is a static class,
   * so you should not need more than one PMREMGenerator object. If you do, calling dispose() on
   * one of them will cause any others to also become unusable.
   */
  dispose() {
    this._dispose();
    if (this._cubemapMaterial !== null) this._cubemapMaterial.dispose();
    if (this._equirectMaterial !== null) this._equirectMaterial.dispose();
  }
  // private interface
  _setSize(cubeSize) {
    this._lodMax = Math.floor(Math.log2(cubeSize));
    this._cubeSize = Math.pow(2, this._lodMax);
  }
  _dispose() {
    if (this._blurMaterial !== null) this._blurMaterial.dispose();
    if (this._pingPongRenderTarget !== null) this._pingPongRenderTarget.dispose();
    for (let i = 0; i < this._lodPlanes.length; i++) {
      this._lodPlanes[i].dispose();
    }
  }
  _cleanup(outputTarget) {
    this._renderer.setRenderTarget(_oldTarget, _oldActiveCubeFace, _oldActiveMipmapLevel);
    this._renderer.xr.enabled = _oldXrEnabled;
    outputTarget.scissorTest = false;
    _setViewport(outputTarget, 0, 0, outputTarget.width, outputTarget.height);
  }
  _fromTexture(texture, renderTarget) {
    if (texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping) {
      this._setSize(texture.image.length === 0 ? 16 : texture.image[0].width || texture.image[0].image.width);
    } else {
      this._setSize(texture.image.width / 4);
    }
    _oldTarget = this._renderer.getRenderTarget();
    _oldActiveCubeFace = this._renderer.getActiveCubeFace();
    _oldActiveMipmapLevel = this._renderer.getActiveMipmapLevel();
    _oldXrEnabled = this._renderer.xr.enabled;
    this._renderer.xr.enabled = false;
    const cubeUVRenderTarget = renderTarget || this._allocateTargets();
    this._textureToCubeUV(texture, cubeUVRenderTarget);
    this._applyPMREM(cubeUVRenderTarget);
    this._cleanup(cubeUVRenderTarget);
    return cubeUVRenderTarget;
  }
  _allocateTargets() {
    const width = 3 * Math.max(this._cubeSize, 16 * 7);
    const height = 4 * this._cubeSize;
    const params = {
      magFilter: LinearFilter,
      minFilter: LinearFilter,
      generateMipmaps: false,
      type: HalfFloatType,
      format: RGBAFormat,
      colorSpace: LinearSRGBColorSpace,
      depthBuffer: false
    };
    const cubeUVRenderTarget = _createRenderTarget(width, height, params);
    if (this._pingPongRenderTarget === null || this._pingPongRenderTarget.width !== width || this._pingPongRenderTarget.height !== height) {
      if (this._pingPongRenderTarget !== null) {
        this._dispose();
      }
      this._pingPongRenderTarget = _createRenderTarget(width, height, params);
      const { _lodMax } = this;
      ({ sizeLods: this._sizeLods, lodPlanes: this._lodPlanes, sigmas: this._sigmas } = _createPlanes(_lodMax));
      this._blurMaterial = _getBlurShader(_lodMax, width, height);
    }
    return cubeUVRenderTarget;
  }
  _compileMaterial(material) {
    const tmpMesh = new Mesh(this._lodPlanes[0], material);
    this._renderer.compile(tmpMesh, _flatCamera);
  }
  _sceneToCubeUV(scene, near, far, cubeUVRenderTarget) {
    const fov2 = 90;
    const aspect2 = 1;
    const cubeCamera = new PerspectiveCamera(fov2, aspect2, near, far);
    const upSign = [1, -1, 1, 1, 1, 1];
    const forwardSign = [1, 1, 1, -1, -1, -1];
    const renderer = this._renderer;
    const originalAutoClear = renderer.autoClear;
    const toneMapping = renderer.toneMapping;
    renderer.getClearColor(_clearColor);
    renderer.toneMapping = NoToneMapping;
    renderer.autoClear = false;
    const backgroundMaterial = new MeshBasicMaterial({
      name: "PMREM.Background",
      side: BackSide,
      depthWrite: false,
      depthTest: false
    });
    const backgroundBox = new Mesh(new BoxGeometry(), backgroundMaterial);
    let useSolidColor = false;
    const background = scene.background;
    if (background) {
      if (background.isColor) {
        backgroundMaterial.color.copy(background);
        scene.background = null;
        useSolidColor = true;
      }
    } else {
      backgroundMaterial.color.copy(_clearColor);
      useSolidColor = true;
    }
    for (let i = 0; i < 6; i++) {
      const col = i % 3;
      if (col === 0) {
        cubeCamera.up.set(0, upSign[i], 0);
        cubeCamera.lookAt(forwardSign[i], 0, 0);
      } else if (col === 1) {
        cubeCamera.up.set(0, 0, upSign[i]);
        cubeCamera.lookAt(0, forwardSign[i], 0);
      } else {
        cubeCamera.up.set(0, upSign[i], 0);
        cubeCamera.lookAt(0, 0, forwardSign[i]);
      }
      const size = this._cubeSize;
      _setViewport(cubeUVRenderTarget, col * size, i > 2 ? size : 0, size, size);
      renderer.setRenderTarget(cubeUVRenderTarget);
      if (useSolidColor) {
        renderer.render(backgroundBox, cubeCamera);
      }
      renderer.render(scene, cubeCamera);
    }
    backgroundBox.geometry.dispose();
    backgroundBox.material.dispose();
    renderer.toneMapping = toneMapping;
    renderer.autoClear = originalAutoClear;
    scene.background = background;
  }
  _textureToCubeUV(texture, cubeUVRenderTarget) {
    const renderer = this._renderer;
    const isCubeTexture = texture.mapping === CubeReflectionMapping || texture.mapping === CubeRefractionMapping;
    if (isCubeTexture) {
      if (this._cubemapMaterial === null) {
        this._cubemapMaterial = _getCubemapMaterial();
      }
      this._cubemapMaterial.uniforms.flipEnvMap.value = texture.isRenderTargetTexture === false ? -1 : 1;
    } else {
      if (this._equirectMaterial === null) {
        this._equirectMaterial = _getEquirectMaterial();
      }
    }
    const material = isCubeTexture ? this._cubemapMaterial : this._equirectMaterial;
    const mesh = new Mesh(this._lodPlanes[0], material);
    const uniforms = material.uniforms;
    uniforms["envMap"].value = texture;
    const size = this._cubeSize;
    _setViewport(cubeUVRenderTarget, 0, 0, 3 * size, 2 * size);
    renderer.setRenderTarget(cubeUVRenderTarget);
    renderer.render(mesh, _flatCamera);
  }
  _applyPMREM(cubeUVRenderTarget) {
    const renderer = this._renderer;
    const autoClear = renderer.autoClear;
    renderer.autoClear = false;
    const n = this._lodPlanes.length;
    for (let i = 1; i < n; i++) {
      const sigma = Math.sqrt(this._sigmas[i] * this._sigmas[i] - this._sigmas[i - 1] * this._sigmas[i - 1]);
      const poleAxis = _axisDirections[(n - i - 1) % _axisDirections.length];
      this._blur(cubeUVRenderTarget, i - 1, i, sigma, poleAxis);
    }
    renderer.autoClear = autoClear;
  }
  /**
   * This is a two-pass Gaussian blur for a cubemap. Normally this is done
   * vertically and horizontally, but this breaks down on a cube. Here we apply
   * the blur latitudinally (around the poles), and then longitudinally (towards
   * the poles) to approximate the orthogonally-separable blur. It is least
   * accurate at the poles, but still does a decent job.
   */
  _blur(cubeUVRenderTarget, lodIn, lodOut, sigma, poleAxis) {
    const pingPongRenderTarget = this._pingPongRenderTarget;
    this._halfBlur(
      cubeUVRenderTarget,
      pingPongRenderTarget,
      lodIn,
      lodOut,
      sigma,
      "latitudinal",
      poleAxis
    );
    this._halfBlur(
      pingPongRenderTarget,
      cubeUVRenderTarget,
      lodOut,
      lodOut,
      sigma,
      "longitudinal",
      poleAxis
    );
  }
  _halfBlur(targetIn, targetOut, lodIn, lodOut, sigmaRadians, direction, poleAxis) {
    const renderer = this._renderer;
    const blurMaterial = this._blurMaterial;
    if (direction !== "latitudinal" && direction !== "longitudinal") {
      console.error(
        "blur direction must be either latitudinal or longitudinal!"
      );
    }
    const STANDARD_DEVIATIONS = 3;
    const blurMesh = new Mesh(this._lodPlanes[lodOut], blurMaterial);
    const blurUniforms = blurMaterial.uniforms;
    const pixels = this._sizeLods[lodIn] - 1;
    const radiansPerPixel = isFinite(sigmaRadians) ? Math.PI / (2 * pixels) : 2 * Math.PI / (2 * MAX_SAMPLES - 1);
    const sigmaPixels = sigmaRadians / radiansPerPixel;
    const samples = isFinite(sigmaRadians) ? 1 + Math.floor(STANDARD_DEVIATIONS * sigmaPixels) : MAX_SAMPLES;
    if (samples > MAX_SAMPLES) {
      console.warn(`sigmaRadians, ${sigmaRadians}, is too large and will clip, as it requested ${samples} samples when the maximum is set to ${MAX_SAMPLES}`);
    }
    const weights = [];
    let sum = 0;
    for (let i = 0; i < MAX_SAMPLES; ++i) {
      const x2 = i / sigmaPixels;
      const weight = Math.exp(-x2 * x2 / 2);
      weights.push(weight);
      if (i === 0) {
        sum += weight;
      } else if (i < samples) {
        sum += 2 * weight;
      }
    }
    for (let i = 0; i < weights.length; i++) {
      weights[i] = weights[i] / sum;
    }
    blurUniforms["envMap"].value = targetIn.texture;
    blurUniforms["samples"].value = samples;
    blurUniforms["weights"].value = weights;
    blurUniforms["latitudinal"].value = direction === "latitudinal";
    if (poleAxis) {
      blurUniforms["poleAxis"].value = poleAxis;
    }
    const { _lodMax } = this;
    blurUniforms["dTheta"].value = radiansPerPixel;
    blurUniforms["mipInt"].value = _lodMax - lodIn;
    const outputSize = this._sizeLods[lodOut];
    const x = 3 * outputSize * (lodOut > _lodMax - LOD_MIN ? lodOut - _lodMax + LOD_MIN : 0);
    const y = 4 * (this._cubeSize - outputSize);
    _setViewport(targetOut, x, y, 3 * outputSize, 2 * outputSize);
    renderer.setRenderTarget(targetOut);
    renderer.render(blurMesh, _flatCamera);
  }
};
function _createPlanes(lodMax) {
  const lodPlanes = [];
  const sizeLods = [];
  const sigmas = [];
  let lod = lodMax;
  const totalLods = lodMax - LOD_MIN + 1 + EXTRA_LOD_SIGMA.length;
  for (let i = 0; i < totalLods; i++) {
    const sizeLod = Math.pow(2, lod);
    sizeLods.push(sizeLod);
    let sigma = 1 / sizeLod;
    if (i > lodMax - LOD_MIN) {
      sigma = EXTRA_LOD_SIGMA[i - lodMax + LOD_MIN - 1];
    } else if (i === 0) {
      sigma = 0;
    }
    sigmas.push(sigma);
    const texelSize = 1 / (sizeLod - 2);
    const min = -texelSize;
    const max = 1 + texelSize;
    const uv1 = [min, min, max, min, max, max, min, min, max, max, min, max];
    const cubeFaces = 6;
    const vertices = 6;
    const positionSize = 3;
    const uvSize = 2;
    const faceIndexSize = 1;
    const position = new Float32Array(positionSize * vertices * cubeFaces);
    const uv = new Float32Array(uvSize * vertices * cubeFaces);
    const faceIndex = new Float32Array(faceIndexSize * vertices * cubeFaces);
    for (let face = 0; face < cubeFaces; face++) {
      const x = face % 3 * 2 / 3 - 1;
      const y = face > 2 ? 0 : -1;
      const coordinates = [
        x,
        y,
        0,
        x + 2 / 3,
        y,
        0,
        x + 2 / 3,
        y + 1,
        0,
        x,
        y,
        0,
        x + 2 / 3,
        y + 1,
        0,
        x,
        y + 1,
        0
      ];
      position.set(coordinates, positionSize * vertices * face);
      uv.set(uv1, uvSize * vertices * face);
      const fill = [face, face, face, face, face, face];
      faceIndex.set(fill, faceIndexSize * vertices * face);
    }
    const planes = new BufferGeometry();
    planes.setAttribute("position", new BufferAttribute(position, positionSize));
    planes.setAttribute("uv", new BufferAttribute(uv, uvSize));
    planes.setAttribute("faceIndex", new BufferAttribute(faceIndex, faceIndexSize));
    lodPlanes.push(planes);
    if (lod > LOD_MIN) {
      lod--;
    }
  }
  return { lodPlanes, sizeLods, sigmas };
}
function _createRenderTarget(width, height, params) {
  const cubeUVRenderTarget = new WebGLRenderTarget(width, height, params);
  cubeUVRenderTarget.texture.mapping = CubeUVReflectionMapping;
  cubeUVRenderTarget.texture.name = "PMREM.cubeUv";
  cubeUVRenderTarget.scissorTest = true;
  return cubeUVRenderTarget;
}
function _setViewport(target, x, y, width, height) {
  target.viewport.set(x, y, width, height);
  target.scissor.set(x, y, width, height);
}
function _getBlurShader(lodMax, width, height) {
  const weights = new Float32Array(MAX_SAMPLES);
  const poleAxis = new Vector3(0, 1, 0);
  const shaderMaterial = new ShaderMaterial({
    name: "SphericalGaussianBlur",
    defines: {
      "n": MAX_SAMPLES,
      "CUBEUV_TEXEL_WIDTH": 1 / width,
      "CUBEUV_TEXEL_HEIGHT": 1 / height,
      "CUBEUV_MAX_MIP": `${lodMax}.0`
    },
    uniforms: {
      "envMap": { value: null },
      "samples": { value: 1 },
      "weights": { value: weights },
      "latitudinal": { value: false },
      "dTheta": { value: 0 },
      "mipInt": { value: 0 },
      "poleAxis": { value: poleAxis }
    },
    vertexShader: _getCommonVertexShader(),
    fragmentShader: (
      /* glsl */
      `

			precision mediump float;
			precision mediump int;

			varying vec3 vOutputDirection;

			uniform sampler2D envMap;
			uniform int samples;
			uniform float weights[ n ];
			uniform bool latitudinal;
			uniform float dTheta;
			uniform float mipInt;
			uniform vec3 poleAxis;

			#define ENVMAP_TYPE_CUBE_UV
			#include <cube_uv_reflection_fragment>

			vec3 getSample( float theta, vec3 axis ) {

				float cosTheta = cos( theta );
				// Rodrigues' axis-angle rotation
				vec3 sampleDirection = vOutputDirection * cosTheta
					+ cross( axis, vOutputDirection ) * sin( theta )
					+ axis * dot( axis, vOutputDirection ) * ( 1.0 - cosTheta );

				return bilinearCubeUV( envMap, sampleDirection, mipInt );

			}

			void main() {

				vec3 axis = latitudinal ? poleAxis : cross( poleAxis, vOutputDirection );

				if ( all( equal( axis, vec3( 0.0 ) ) ) ) {

					axis = vec3( vOutputDirection.z, 0.0, - vOutputDirection.x );

				}

				axis = normalize( axis );

				gl_FragColor = vec4( 0.0, 0.0, 0.0, 1.0 );
				gl_FragColor.rgb += weights[ 0 ] * getSample( 0.0, axis );

				for ( int i = 1; i < n; i++ ) {

					if ( i >= samples ) {

						break;

					}

					float theta = dTheta * float( i );
					gl_FragColor.rgb += weights[ i ] * getSample( -1.0 * theta, axis );
					gl_FragColor.rgb += weights[ i ] * getSample( theta, axis );

				}

			}
		`
    ),
    blending: NoBlending,
    depthTest: false,
    depthWrite: false
  });
  return shaderMaterial;
}
function _getEquirectMaterial() {
  return new ShaderMaterial({
    name: "EquirectangularToCubeUV",
    uniforms: {
      "envMap": { value: null }
    },
    vertexShader: _getCommonVertexShader(),
    fragmentShader: (
      /* glsl */
      `

			precision mediump float;
			precision mediump int;

			varying vec3 vOutputDirection;

			uniform sampler2D envMap;

			#include <common>

			void main() {

				vec3 outputDirection = normalize( vOutputDirection );
				vec2 uv = equirectUv( outputDirection );

				gl_FragColor = vec4( texture2D ( envMap, uv ).rgb, 1.0 );

			}
		`
    ),
    blending: NoBlending,
    depthTest: false,
    depthWrite: false
  });
}
function _getCubemapMaterial() {
  return new ShaderMaterial({
    name: "CubemapToCubeUV",
    uniforms: {
      "envMap": { value: null },
      "flipEnvMap": { value: -1 }
    },
    vertexShader: _getCommonVertexShader(),
    fragmentShader: (
      /* glsl */
      `

			precision mediump float;
			precision mediump int;

			uniform float flipEnvMap;

			varying vec3 vOutputDirection;

			uniform samplerCube envMap;

			void main() {

				gl_FragColor = textureCube( envMap, vec3( flipEnvMap * vOutputDirection.x, vOutputDirection.yz ) );

			}
		`
    ),
    blending: NoBlending,
    depthTest: false,
    depthWrite: false
  });
}
function _getCommonVertexShader() {
  return (
    /* glsl */
    `

		precision mediump float;
		precision mediump int;

		attribute float faceIndex;

		varying vec3 vOutputDirection;

		// RH coordinate system; PMREM face-indexing convention
		vec3 getDirection( vec2 uv, float face ) {

			uv = 2.0 * uv - 1.0;

			vec3 direction = vec3( uv, 1.0 );

			if ( face == 0.0 ) {

				direction = direction.zyx; // ( 1, v, u ) pos x

			} else if ( face == 1.0 ) {

				direction = direction.xzy;
				direction.xz *= -1.0; // ( -u, 1, -v ) pos y

			} else if ( face == 2.0 ) {

				direction.x *= -1.0; // ( -u, v, 1 ) pos z

			} else if ( face == 3.0 ) {

				direction = direction.zyx;
				direction.xz *= -1.0; // ( -1, v, -u ) neg x

			} else if ( face == 4.0 ) {

				direction = direction.xzy;
				direction.xy *= -1.0; // ( -u, -1, v ) neg y

			} else if ( face == 5.0 ) {

				direction.z *= -1.0; // ( u, v, -1 ) neg z

			}

			return direction;

		}

		void main() {

			vOutputDirection = getDirection( uv, faceIndex );
			gl_Position = vec4( position, 1.0 );

		}
	`
  );
}
function WebGLCubeUVMaps(renderer) {
  let cubeUVmaps = /* @__PURE__ */ new WeakMap();
  let pmremGenerator = null;
  function get(texture) {
    if (texture && texture.isTexture) {
      const mapping = texture.mapping;
      const isEquirectMap = mapping === EquirectangularReflectionMapping || mapping === EquirectangularRefractionMapping;
      const isCubeMap = mapping === CubeReflectionMapping || mapping === CubeRefractionMapping;
      if (isEquirectMap || isCubeMap) {
        let renderTarget = cubeUVmaps.get(texture);
        const currentPMREMVersion = renderTarget !== void 0 ? renderTarget.texture.pmremVersion : 0;
        if (texture.isRenderTargetTexture && texture.pmremVersion !== currentPMREMVersion) {
          if (pmremGenerator === null) pmremGenerator = new PMREMGenerator(renderer);
          renderTarget = isEquirectMap ? pmremGenerator.fromEquirectangular(texture, renderTarget) : pmremGenerator.fromCubemap(texture, renderTarget);
          renderTarget.texture.pmremVersion = texture.pmremVersion;
          cubeUVmaps.set(texture, renderTarget);
          return renderTarget.texture;
        } else {
          if (renderTarget !== void 0) {
            return renderTarget.texture;
          } else {
            const image = texture.image;
            if (isEquirectMap && image && image.height > 0 || isCubeMap && image && isCubeTextureComplete(image)) {
              if (pmremGenerator === null) pmremGenerator = new PMREMGenerator(renderer);
              renderTarget = isEquirectMap ? pmremGenerator.fromEquirectangular(texture) : pmremGenerator.fromCubemap(texture);
              renderTarget.texture.pmremVersion = texture.pmremVersion;
              cubeUVmaps.set(texture, renderTarget);
              texture.addEventListener("dispose", onTextureDispose);
              return renderTarget.texture;
            } else {
              return null;
            }
          }
        }
      }
    }
    return texture;
  }
  function isCubeTextureComplete(image) {
    let count = 0;
    const length = 6;
    for (let i = 0; i < length; i++) {
      if (image[i] !== void 0) count++;
    }
    return count === length;
  }
  function onTextureDispose(event) {
    const texture = event.target;
    texture.removeEventListener("dispose", onTextureDispose);
    const cubemapUV = cubeUVmaps.get(texture);
    if (cubemapUV !== void 0) {
      cubeUVmaps.delete(texture);
      cubemapUV.dispose();
    }
  }
  function dispose() {
    cubeUVmaps = /* @__PURE__ */ new WeakMap();
    if (pmremGenerator !== null) {
      pmremGenerator.dispose();
      pmremGenerator = null;
    }
  }
  return {
    get,
    dispose
  };
}
function WebGLExtensions(gl) {
  const extensions = {};
  function getExtension(name) {
    if (extensions[name] !== void 0) {
      return extensions[name];
    }
    let extension;
    switch (name) {
      case "WEBGL_depth_texture":
        extension = gl.getExtension("WEBGL_depth_texture") || gl.getExtension("MOZ_WEBGL_depth_texture") || gl.getExtension("WEBKIT_WEBGL_depth_texture");
        break;
      case "EXT_texture_filter_anisotropic":
        extension = gl.getExtension("EXT_texture_filter_anisotropic") || gl.getExtension("MOZ_EXT_texture_filter_anisotropic") || gl.getExtension("WEBKIT_EXT_texture_filter_anisotropic");
        break;
      case "WEBGL_compressed_texture_s3tc":
        extension = gl.getExtension("WEBGL_compressed_texture_s3tc") || gl.getExtension("MOZ_WEBGL_compressed_texture_s3tc") || gl.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");
        break;
      case "WEBGL_compressed_texture_pvrtc":
        extension = gl.getExtension("WEBGL_compressed_texture_pvrtc") || gl.getExtension("WEBKIT_WEBGL_compressed_texture_pvrtc");
        break;
      default:
        extension = gl.getExtension(name);
    }
    extensions[name] = extension;
    return extension;
  }
  return {
    has: function(name) {
      return getExtension(name) !== null;
    },
    init: function() {
      getExtension("EXT_color_buffer_float");
      getExtension("WEBGL_clip_cull_distance");
      getExtension("OES_texture_float_linear");
      getExtension("EXT_color_buffer_half_float");
      getExtension("WEBGL_multisampled_render_to_texture");
      getExtension("WEBGL_render_shared_exponent");
    },
    get: function(name) {
      const extension = getExtension(name);
      if (extension === null) {
        warnOnce("THREE.WebGLRenderer: " + name + " extension not supported.");
      }
      return extension;
    }
  };
}
function WebGLGeometries(gl, attributes, info, bindingStates) {
  const geometries = {};
  const wireframeAttributes = /* @__PURE__ */ new WeakMap();
  function onGeometryDispose(event) {
    const geometry = event.target;
    if (geometry.index !== null) {
      attributes.remove(geometry.index);
    }
    for (const name in geometry.attributes) {
      attributes.remove(geometry.attributes[name]);
    }
    geometry.removeEventListener("dispose", onGeometryDispose);
    delete geometries[geometry.id];
    const attribute = wireframeAttributes.get(geometry);
    if (attribute) {
      attributes.remove(attribute);
      wireframeAttributes.delete(geometry);
    }
    bindingStates.releaseStatesOfGeometry(geometry);
    if (geometry.isInstancedBufferGeometry === true) {
      delete geometry._maxInstanceCount;
    }
    info.memory.geometries--;
  }
  function get(object, geometry) {
    if (geometries[geometry.id] === true) return geometry;
    geometry.addEventListener("dispose", onGeometryDispose);
    geometries[geometry.id] = true;
    info.memory.geometries++;
    return geometry;
  }
  function update(geometry) {
    const geometryAttributes = geometry.attributes;
    for (const name in geometryAttributes) {
      attributes.update(geometryAttributes[name], gl.ARRAY_BUFFER);
    }
  }
  function updateWireframeAttribute(geometry) {
    const indices = [];
    const geometryIndex = geometry.index;
    const geometryPosition = geometry.attributes.position;
    let version = 0;
    if (geometryIndex !== null) {
      const array = geometryIndex.array;
      version = geometryIndex.version;
      for (let i = 0, l = array.length; i < l; i += 3) {
        const a = array[i + 0];
        const b = array[i + 1];
        const c = array[i + 2];
        indices.push(a, b, b, c, c, a);
      }
    } else if (geometryPosition !== void 0) {
      const array = geometryPosition.array;
      version = geometryPosition.version;
      for (let i = 0, l = array.length / 3 - 1; i < l; i += 3) {
        const a = i + 0;
        const b = i + 1;
        const c = i + 2;
        indices.push(a, b, b, c, c, a);
      }
    } else {
      return;
    }
    const attribute = new (arrayNeedsUint32(indices) ? Uint32BufferAttribute : Uint16BufferAttribute)(indices, 1);
    attribute.version = version;
    const previousAttribute = wireframeAttributes.get(geometry);
    if (previousAttribute) attributes.remove(previousAttribute);
    wireframeAttributes.set(geometry, attribute);
  }
  function getWireframeAttribute(geometry) {
    const currentAttribute = wireframeAttributes.get(geometry);
    if (currentAttribute) {
      const geometryIndex = geometry.index;
      if (geometryIndex !== null) {
        if (currentAttribute.version < geometryIndex.version) {
          updateWireframeAttribute(geometry);
        }
      }
    } else {
      updateWireframeAttribute(geometry);
    }
    return wireframeAttributes.get(geometry);
  }
  return {
    get,
    update,
    getWireframeAttribute
  };
}
function WebGLIndexedBufferRenderer(gl, extensions, info) {
  let mode;
  function setMode(value) {
    mode = value;
  }
  let type, bytesPerElement;
  function setIndex(value) {
    type = value.type;
    bytesPerElement = value.bytesPerElement;
  }
  function render3(start, count) {
    gl.drawElements(mode, count, type, start * bytesPerElement);
    info.update(count, mode, 1);
  }
  function renderInstances(start, count, primcount) {
    if (primcount === 0) return;
    gl.drawElementsInstanced(mode, count, type, start * bytesPerElement, primcount);
    info.update(count, mode, primcount);
  }
  function renderMultiDraw(starts, counts, drawCount) {
    if (drawCount === 0) return;
    const extension = extensions.get("WEBGL_multi_draw");
    extension.multiDrawElementsWEBGL(mode, counts, 0, type, starts, 0, drawCount);
    let elementCount = 0;
    for (let i = 0; i < drawCount; i++) {
      elementCount += counts[i];
    }
    info.update(elementCount, mode, 1);
  }
  function renderMultiDrawInstances(starts, counts, drawCount, primcount) {
    if (drawCount === 0) return;
    const extension = extensions.get("WEBGL_multi_draw");
    if (extension === null) {
      for (let i = 0; i < starts.length; i++) {
        renderInstances(starts[i] / bytesPerElement, counts[i], primcount[i]);
      }
    } else {
      extension.multiDrawElementsInstancedWEBGL(mode, counts, 0, type, starts, 0, primcount, 0, drawCount);
      let elementCount = 0;
      for (let i = 0; i < drawCount; i++) {
        elementCount += counts[i] * primcount[i];
      }
      info.update(elementCount, mode, 1);
    }
  }
  this.setMode = setMode;
  this.setIndex = setIndex;
  this.render = render3;
  this.renderInstances = renderInstances;
  this.renderMultiDraw = renderMultiDraw;
  this.renderMultiDrawInstances = renderMultiDrawInstances;
}
function WebGLInfo(gl) {
  const memory = {
    geometries: 0,
    textures: 0
  };
  const render3 = {
    frame: 0,
    calls: 0,
    triangles: 0,
    points: 0,
    lines: 0
  };
  function update(count, mode, instanceCount) {
    render3.calls++;
    switch (mode) {
      case gl.TRIANGLES:
        render3.triangles += instanceCount * (count / 3);
        break;
      case gl.LINES:
        render3.lines += instanceCount * (count / 2);
        break;
      case gl.LINE_STRIP:
        render3.lines += instanceCount * (count - 1);
        break;
      case gl.LINE_LOOP:
        render3.lines += instanceCount * count;
        break;
      case gl.POINTS:
        render3.points += instanceCount * count;
        break;
      default:
        console.error("THREE.WebGLInfo: Unknown draw mode:", mode);
        break;
    }
  }
  function reset() {
    render3.calls = 0;
    render3.triangles = 0;
    render3.points = 0;
    render3.lines = 0;
  }
  return {
    memory,
    render: render3,
    programs: null,
    autoReset: true,
    reset,
    update
  };
}
function WebGLMorphtargets(gl, capabilities, textures) {
  const morphTextures = /* @__PURE__ */ new WeakMap();
  const morph = new Vector4();
  function update(object, geometry, program) {
    const objectInfluences = object.morphTargetInfluences;
    const morphAttribute = geometry.morphAttributes.position || geometry.morphAttributes.normal || geometry.morphAttributes.color;
    const morphTargetsCount = morphAttribute !== void 0 ? morphAttribute.length : 0;
    let entry = morphTextures.get(geometry);
    if (entry === void 0 || entry.count !== morphTargetsCount) {
      let disposeTexture = function() {
        texture.dispose();
        morphTextures.delete(geometry);
        geometry.removeEventListener("dispose", disposeTexture);
      };
      if (entry !== void 0) entry.texture.dispose();
      const hasMorphPosition = geometry.morphAttributes.position !== void 0;
      const hasMorphNormals = geometry.morphAttributes.normal !== void 0;
      const hasMorphColors = geometry.morphAttributes.color !== void 0;
      const morphTargets = geometry.morphAttributes.position || [];
      const morphNormals = geometry.morphAttributes.normal || [];
      const morphColors = geometry.morphAttributes.color || [];
      let vertexDataCount = 0;
      if (hasMorphPosition === true) vertexDataCount = 1;
      if (hasMorphNormals === true) vertexDataCount = 2;
      if (hasMorphColors === true) vertexDataCount = 3;
      let width = geometry.attributes.position.count * vertexDataCount;
      let height = 1;
      if (width > capabilities.maxTextureSize) {
        height = Math.ceil(width / capabilities.maxTextureSize);
        width = capabilities.maxTextureSize;
      }
      const buffer = new Float32Array(width * height * 4 * morphTargetsCount);
      const texture = new DataArrayTexture(buffer, width, height, morphTargetsCount);
      texture.type = FloatType;
      texture.needsUpdate = true;
      const vertexDataStride = vertexDataCount * 4;
      for (let i = 0; i < morphTargetsCount; i++) {
        const morphTarget = morphTargets[i];
        const morphNormal = morphNormals[i];
        const morphColor = morphColors[i];
        const offset = width * height * 4 * i;
        for (let j = 0; j < morphTarget.count; j++) {
          const stride = j * vertexDataStride;
          if (hasMorphPosition === true) {
            morph.fromBufferAttribute(morphTarget, j);
            buffer[offset + stride + 0] = morph.x;
            buffer[offset + stride + 1] = morph.y;
            buffer[offset + stride + 2] = morph.z;
            buffer[offset + stride + 3] = 0;
          }
          if (hasMorphNormals === true) {
            morph.fromBufferAttribute(morphNormal, j);
            buffer[offset + stride + 4] = morph.x;
            buffer[offset + stride + 5] = morph.y;
            buffer[offset + stride + 6] = morph.z;
            buffer[offset + stride + 7] = 0;
          }
          if (hasMorphColors === true) {
            morph.fromBufferAttribute(morphColor, j);
            buffer[offset + stride + 8] = morph.x;
            buffer[offset + stride + 9] = morph.y;
            buffer[offset + stride + 10] = morph.z;
            buffer[offset + stride + 11] = morphColor.itemSize === 4 ? morph.w : 1;
          }
        }
      }
      entry = {
        count: morphTargetsCount,
        texture,
        size: new Vector2(width, height)
      };
      morphTextures.set(geometry, entry);
      geometry.addEventListener("dispose", disposeTexture);
    }
    if (object.isInstancedMesh === true && object.morphTexture !== null) {
      program.getUniforms().setValue(gl, "morphTexture", object.morphTexture, textures);
    } else {
      let morphInfluencesSum = 0;
      for (let i = 0; i < objectInfluences.length; i++) {
        morphInfluencesSum += objectInfluences[i];
      }
      const morphBaseInfluence = geometry.morphTargetsRelative ? 1 : 1 - morphInfluencesSum;
      program.getUniforms().setValue(gl, "morphTargetBaseInfluence", morphBaseInfluence);
      program.getUniforms().setValue(gl, "morphTargetInfluences", objectInfluences);
    }
    program.getUniforms().setValue(gl, "morphTargetsTexture", entry.texture, textures);
    program.getUniforms().setValue(gl, "morphTargetsTextureSize", entry.size);
  }
  return {
    update
  };
}
function WebGLObjects(gl, geometries, attributes, info) {
  let updateMap = /* @__PURE__ */ new WeakMap();
  function update(object) {
    const frame = info.render.frame;
    const geometry = object.geometry;
    const buffergeometry = geometries.get(object, geometry);
    if (updateMap.get(buffergeometry) !== frame) {
      geometries.update(buffergeometry);
      updateMap.set(buffergeometry, frame);
    }
    if (object.isInstancedMesh) {
      if (object.hasEventListener("dispose", onInstancedMeshDispose) === false) {
        object.addEventListener("dispose", onInstancedMeshDispose);
      }
      if (updateMap.get(object) !== frame) {
        attributes.update(object.instanceMatrix, gl.ARRAY_BUFFER);
        if (object.instanceColor !== null) {
          attributes.update(object.instanceColor, gl.ARRAY_BUFFER);
        }
        updateMap.set(object, frame);
      }
    }
    if (object.isSkinnedMesh) {
      const skeleton = object.skeleton;
      if (updateMap.get(skeleton) !== frame) {
        skeleton.update();
        updateMap.set(skeleton, frame);
      }
    }
    return buffergeometry;
  }
  function dispose() {
    updateMap = /* @__PURE__ */ new WeakMap();
  }
  function onInstancedMeshDispose(event) {
    const instancedMesh = event.target;
    instancedMesh.removeEventListener("dispose", onInstancedMeshDispose);
    attributes.remove(instancedMesh.instanceMatrix);
    if (instancedMesh.instanceColor !== null) attributes.remove(instancedMesh.instanceColor);
  }
  return {
    update,
    dispose
  };
}
var emptyTexture = /* @__PURE__ */ new Texture();
var emptyShadowTexture = /* @__PURE__ */ new DepthTexture(1, 1);
var emptyArrayTexture = /* @__PURE__ */ new DataArrayTexture();
var empty3dTexture = /* @__PURE__ */ new Data3DTexture();
var emptyCubeTexture = /* @__PURE__ */ new CubeTexture();
var arrayCacheF32 = [];
var arrayCacheI32 = [];
var mat4array = new Float32Array(16);
var mat3array = new Float32Array(9);
var mat2array = new Float32Array(4);
function flatten(array, nBlocks, blockSize) {
  const firstElem = array[0];
  if (firstElem <= 0 || firstElem > 0) return array;
  const n = nBlocks * blockSize;
  let r = arrayCacheF32[n];
  if (r === void 0) {
    r = new Float32Array(n);
    arrayCacheF32[n] = r;
  }
  if (nBlocks !== 0) {
    firstElem.toArray(r, 0);
    for (let i = 1, offset = 0; i !== nBlocks; ++i) {
      offset += blockSize;
      array[i].toArray(r, offset);
    }
  }
  return r;
}
function arraysEqual(a, b) {
  if (a.length !== b.length) return false;
  for (let i = 0, l = a.length; i < l; i++) {
    if (a[i] !== b[i]) return false;
  }
  return true;
}
function copyArray(a, b) {
  for (let i = 0, l = b.length; i < l; i++) {
    a[i] = b[i];
  }
}
function allocTexUnits(textures, n) {
  let r = arrayCacheI32[n];
  if (r === void 0) {
    r = new Int32Array(n);
    arrayCacheI32[n] = r;
  }
  for (let i = 0; i !== n; ++i) {
    r[i] = textures.allocateTextureUnit();
  }
  return r;
}
function setValueV1f(gl, v) {
  const cache = this.cache;
  if (cache[0] === v) return;
  gl.uniform1f(this.addr, v);
  cache[0] = v;
}
function setValueV2f(gl, v) {
  const cache = this.cache;
  if (v.x !== void 0) {
    if (cache[0] !== v.x || cache[1] !== v.y) {
      gl.uniform2f(this.addr, v.x, v.y);
      cache[0] = v.x;
      cache[1] = v.y;
    }
  } else {
    if (arraysEqual(cache, v)) return;
    gl.uniform2fv(this.addr, v);
    copyArray(cache, v);
  }
}
function setValueV3f(gl, v) {
  const cache = this.cache;
  if (v.x !== void 0) {
    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z) {
      gl.uniform3f(this.addr, v.x, v.y, v.z);
      cache[0] = v.x;
      cache[1] = v.y;
      cache[2] = v.z;
    }
  } else if (v.r !== void 0) {
    if (cache[0] !== v.r || cache[1] !== v.g || cache[2] !== v.b) {
      gl.uniform3f(this.addr, v.r, v.g, v.b);
      cache[0] = v.r;
      cache[1] = v.g;
      cache[2] = v.b;
    }
  } else {
    if (arraysEqual(cache, v)) return;
    gl.uniform3fv(this.addr, v);
    copyArray(cache, v);
  }
}
function setValueV4f(gl, v) {
  const cache = this.cache;
  if (v.x !== void 0) {
    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z || cache[3] !== v.w) {
      gl.uniform4f(this.addr, v.x, v.y, v.z, v.w);
      cache[0] = v.x;
      cache[1] = v.y;
      cache[2] = v.z;
      cache[3] = v.w;
    }
  } else {
    if (arraysEqual(cache, v)) return;
    gl.uniform4fv(this.addr, v);
    copyArray(cache, v);
  }
}
function setValueM2(gl, v) {
  const cache = this.cache;
  const elements = v.elements;
  if (elements === void 0) {
    if (arraysEqual(cache, v)) return;
    gl.uniformMatrix2fv(this.addr, false, v);
    copyArray(cache, v);
  } else {
    if (arraysEqual(cache, elements)) return;
    mat2array.set(elements);
    gl.uniformMatrix2fv(this.addr, false, mat2array);
    copyArray(cache, elements);
  }
}
function setValueM3(gl, v) {
  const cache = this.cache;
  const elements = v.elements;
  if (elements === void 0) {
    if (arraysEqual(cache, v)) return;
    gl.uniformMatrix3fv(this.addr, false, v);
    copyArray(cache, v);
  } else {
    if (arraysEqual(cache, elements)) return;
    mat3array.set(elements);
    gl.uniformMatrix3fv(this.addr, false, mat3array);
    copyArray(cache, elements);
  }
}
function setValueM4(gl, v) {
  const cache = this.cache;
  const elements = v.elements;
  if (elements === void 0) {
    if (arraysEqual(cache, v)) return;
    gl.uniformMatrix4fv(this.addr, false, v);
    copyArray(cache, v);
  } else {
    if (arraysEqual(cache, elements)) return;
    mat4array.set(elements);
    gl.uniformMatrix4fv(this.addr, false, mat4array);
    copyArray(cache, elements);
  }
}
function setValueV1i(gl, v) {
  const cache = this.cache;
  if (cache[0] === v) return;
  gl.uniform1i(this.addr, v);
  cache[0] = v;
}
function setValueV2i(gl, v) {
  const cache = this.cache;
  if (v.x !== void 0) {
    if (cache[0] !== v.x || cache[1] !== v.y) {
      gl.uniform2i(this.addr, v.x, v.y);
      cache[0] = v.x;
      cache[1] = v.y;
    }
  } else {
    if (arraysEqual(cache, v)) return;
    gl.uniform2iv(this.addr, v);
    copyArray(cache, v);
  }
}
function setValueV3i(gl, v) {
  const cache = this.cache;
  if (v.x !== void 0) {
    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z) {
      gl.uniform3i(this.addr, v.x, v.y, v.z);
      cache[0] = v.x;
      cache[1] = v.y;
      cache[2] = v.z;
    }
  } else {
    if (arraysEqual(cache, v)) return;
    gl.uniform3iv(this.addr, v);
    copyArray(cache, v);
  }
}
function setValueV4i(gl, v) {
  const cache = this.cache;
  if (v.x !== void 0) {
    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z || cache[3] !== v.w) {
      gl.uniform4i(this.addr, v.x, v.y, v.z, v.w);
      cache[0] = v.x;
      cache[1] = v.y;
      cache[2] = v.z;
      cache[3] = v.w;
    }
  } else {
    if (arraysEqual(cache, v)) return;
    gl.uniform4iv(this.addr, v);
    copyArray(cache, v);
  }
}
function setValueV1ui(gl, v) {
  const cache = this.cache;
  if (cache[0] === v) return;
  gl.uniform1ui(this.addr, v);
  cache[0] = v;
}
function setValueV2ui(gl, v) {
  const cache = this.cache;
  if (v.x !== void 0) {
    if (cache[0] !== v.x || cache[1] !== v.y) {
      gl.uniform2ui(this.addr, v.x, v.y);
      cache[0] = v.x;
      cache[1] = v.y;
    }
  } else {
    if (arraysEqual(cache, v)) return;
    gl.uniform2uiv(this.addr, v);
    copyArray(cache, v);
  }
}
function setValueV3ui(gl, v) {
  const cache = this.cache;
  if (v.x !== void 0) {
    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z) {
      gl.uniform3ui(this.addr, v.x, v.y, v.z);
      cache[0] = v.x;
      cache[1] = v.y;
      cache[2] = v.z;
    }
  } else {
    if (arraysEqual(cache, v)) return;
    gl.uniform3uiv(this.addr, v);
    copyArray(cache, v);
  }
}
function setValueV4ui(gl, v) {
  const cache = this.cache;
  if (v.x !== void 0) {
    if (cache[0] !== v.x || cache[1] !== v.y || cache[2] !== v.z || cache[3] !== v.w) {
      gl.uniform4ui(this.addr, v.x, v.y, v.z, v.w);
      cache[0] = v.x;
      cache[1] = v.y;
      cache[2] = v.z;
      cache[3] = v.w;
    }
  } else {
    if (arraysEqual(cache, v)) return;
    gl.uniform4uiv(this.addr, v);
    copyArray(cache, v);
  }
}
function setValueT1(gl, v, textures) {
  const cache = this.cache;
  const unit = textures.allocateTextureUnit();
  if (cache[0] !== unit) {
    gl.uniform1i(this.addr, unit);
    cache[0] = unit;
  }
  let emptyTexture2D;
  if (this.type === gl.SAMPLER_2D_SHADOW) {
    emptyShadowTexture.compareFunction = LessEqualCompare;
    emptyTexture2D = emptyShadowTexture;
  } else {
    emptyTexture2D = emptyTexture;
  }
  textures.setTexture2D(v || emptyTexture2D, unit);
}
function setValueT3D1(gl, v, textures) {
  const cache = this.cache;
  const unit = textures.allocateTextureUnit();
  if (cache[0] !== unit) {
    gl.uniform1i(this.addr, unit);
    cache[0] = unit;
  }
  textures.setTexture3D(v || empty3dTexture, unit);
}
function setValueT6(gl, v, textures) {
  const cache = this.cache;
  const unit = textures.allocateTextureUnit();
  if (cache[0] !== unit) {
    gl.uniform1i(this.addr, unit);
    cache[0] = unit;
  }
  textures.setTextureCube(v || emptyCubeTexture, unit);
}
function setValueT2DArray1(gl, v, textures) {
  const cache = this.cache;
  const unit = textures.allocateTextureUnit();
  if (cache[0] !== unit) {
    gl.uniform1i(this.addr, unit);
    cache[0] = unit;
  }
  textures.setTexture2DArray(v || emptyArrayTexture, unit);
}
function getSingularSetter(type) {
  switch (type) {
    case 5126:
      return setValueV1f;
    // FLOAT
    case 35664:
      return setValueV2f;
    // _VEC2
    case 35665:
      return setValueV3f;
    // _VEC3
    case 35666:
      return setValueV4f;
    // _VEC4
    case 35674:
      return setValueM2;
    // _MAT2
    case 35675:
      return setValueM3;
    // _MAT3
    case 35676:
      return setValueM4;
    // _MAT4
    case 5124:
    case 35670:
      return setValueV1i;
    // INT, BOOL
    case 35667:
    case 35671:
      return setValueV2i;
    // _VEC2
    case 35668:
    case 35672:
      return setValueV3i;
    // _VEC3
    case 35669:
    case 35673:
      return setValueV4i;
    // _VEC4
    case 5125:
      return setValueV1ui;
    // UINT
    case 36294:
      return setValueV2ui;
    // _VEC2
    case 36295:
      return setValueV3ui;
    // _VEC3
    case 36296:
      return setValueV4ui;
    // _VEC4
    case 35678:
    // SAMPLER_2D
    case 36198:
    // SAMPLER_EXTERNAL_OES
    case 36298:
    // INT_SAMPLER_2D
    case 36306:
    // UNSIGNED_INT_SAMPLER_2D
    case 35682:
      return setValueT1;
    case 35679:
    // SAMPLER_3D
    case 36299:
    // INT_SAMPLER_3D
    case 36307:
      return setValueT3D1;
    case 35680:
    // SAMPLER_CUBE
    case 36300:
    // INT_SAMPLER_CUBE
    case 36308:
    // UNSIGNED_INT_SAMPLER_CUBE
    case 36293:
      return setValueT6;
    case 36289:
    // SAMPLER_2D_ARRAY
    case 36303:
    // INT_SAMPLER_2D_ARRAY
    case 36311:
    // UNSIGNED_INT_SAMPLER_2D_ARRAY
    case 36292:
      return setValueT2DArray1;
  }
}
function setValueV1fArray(gl, v) {
  gl.uniform1fv(this.addr, v);
}
function setValueV2fArray(gl, v) {
  const data = flatten(v, this.size, 2);
  gl.uniform2fv(this.addr, data);
}
function setValueV3fArray(gl, v) {
  const data = flatten(v, this.size, 3);
  gl.uniform3fv(this.addr, data);
}
function setValueV4fArray(gl, v) {
  const data = flatten(v, this.size, 4);
  gl.uniform4fv(this.addr, data);
}
function setValueM2Array(gl, v) {
  const data = flatten(v, this.size, 4);
  gl.uniformMatrix2fv(this.addr, false, data);
}
function setValueM3Array(gl, v) {
  const data = flatten(v, this.size, 9);
  gl.uniformMatrix3fv(this.addr, false, data);
}
function setValueM4Array(gl, v) {
  const data = flatten(v, this.size, 16);
  gl.uniformMatrix4fv(this.addr, false, data);
}
function setValueV1iArray(gl, v) {
  gl.uniform1iv(this.addr, v);
}
function setValueV2iArray(gl, v) {
  gl.uniform2iv(this.addr, v);
}
function setValueV3iArray(gl, v) {
  gl.uniform3iv(this.addr, v);
}
function setValueV4iArray(gl, v) {
  gl.uniform4iv(this.addr, v);
}
function setValueV1uiArray(gl, v) {
  gl.uniform1uiv(this.addr, v);
}
function setValueV2uiArray(gl, v) {
  gl.uniform2uiv(this.addr, v);
}
function setValueV3uiArray(gl, v) {
  gl.uniform3uiv(this.addr, v);
}
function setValueV4uiArray(gl, v) {
  gl.uniform4uiv(this.addr, v);
}
function setValueT1Array(gl, v, textures) {
  const cache = this.cache;
  const n = v.length;
  const units = allocTexUnits(textures, n);
  if (!arraysEqual(cache, units)) {
    gl.uniform1iv(this.addr, units);
    copyArray(cache, units);
  }
  for (let i = 0; i !== n; ++i) {
    textures.setTexture2D(v[i] || emptyTexture, units[i]);
  }
}
function setValueT3DArray(gl, v, textures) {
  const cache = this.cache;
  const n = v.length;
  const units = allocTexUnits(textures, n);
  if (!arraysEqual(cache, units)) {
    gl.uniform1iv(this.addr, units);
    copyArray(cache, units);
  }
  for (let i = 0; i !== n; ++i) {
    textures.setTexture3D(v[i] || empty3dTexture, units[i]);
  }
}
function setValueT6Array(gl, v, textures) {
  const cache = this.cache;
  const n = v.length;
  const units = allocTexUnits(textures, n);
  if (!arraysEqual(cache, units)) {
    gl.uniform1iv(this.addr, units);
    copyArray(cache, units);
  }
  for (let i = 0; i !== n; ++i) {
    textures.setTextureCube(v[i] || emptyCubeTexture, units[i]);
  }
}
function setValueT2DArrayArray(gl, v, textures) {
  const cache = this.cache;
  const n = v.length;
  const units = allocTexUnits(textures, n);
  if (!arraysEqual(cache, units)) {
    gl.uniform1iv(this.addr, units);
    copyArray(cache, units);
  }
  for (let i = 0; i !== n; ++i) {
    textures.setTexture2DArray(v[i] || emptyArrayTexture, units[i]);
  }
}
function getPureArraySetter(type) {
  switch (type) {
    case 5126:
      return setValueV1fArray;
    // FLOAT
    case 35664:
      return setValueV2fArray;
    // _VEC2
    case 35665:
      return setValueV3fArray;
    // _VEC3
    case 35666:
      return setValueV4fArray;
    // _VEC4
    case 35674:
      return setValueM2Array;
    // _MAT2
    case 35675:
      return setValueM3Array;
    // _MAT3
    case 35676:
      return setValueM4Array;
    // _MAT4
    case 5124:
    case 35670:
      return setValueV1iArray;
    // INT, BOOL
    case 35667:
    case 35671:
      return setValueV2iArray;
    // _VEC2
    case 35668:
    case 35672:
      return setValueV3iArray;
    // _VEC3
    case 35669:
    case 35673:
      return setValueV4iArray;
    // _VEC4
    case 5125:
      return setValueV1uiArray;
    // UINT
    case 36294:
      return setValueV2uiArray;
    // _VEC2
    case 36295:
      return setValueV3uiArray;
    // _VEC3
    case 36296:
      return setValueV4uiArray;
    // _VEC4
    case 35678:
    // SAMPLER_2D
    case 36198:
    // SAMPLER_EXTERNAL_OES
    case 36298:
    // INT_SAMPLER_2D
    case 36306:
    // UNSIGNED_INT_SAMPLER_2D
    case 35682:
      return setValueT1Array;
    case 35679:
    // SAMPLER_3D
    case 36299:
    // INT_SAMPLER_3D
    case 36307:
      return setValueT3DArray;
    case 35680:
    // SAMPLER_CUBE
    case 36300:
    // INT_SAMPLER_CUBE
    case 36308:
    // UNSIGNED_INT_SAMPLER_CUBE
    case 36293:
      return setValueT6Array;
    case 36289:
    // SAMPLER_2D_ARRAY
    case 36303:
    // INT_SAMPLER_2D_ARRAY
    case 36311:
    // UNSIGNED_INT_SAMPLER_2D_ARRAY
    case 36292:
      return setValueT2DArrayArray;
  }
}
var SingleUniform = class {
  constructor(id, activeInfo, addr) {
    this.id = id;
    this.addr = addr;
    this.cache = [];
    this.type = activeInfo.type;
    this.setValue = getSingularSetter(activeInfo.type);
  }
};
var PureArrayUniform = class {
  constructor(id, activeInfo, addr) {
    this.id = id;
    this.addr = addr;
    this.cache = [];
    this.type = activeInfo.type;
    this.size = activeInfo.size;
    this.setValue = getPureArraySetter(activeInfo.type);
  }
};
var StructuredUniform = class {
  constructor(id) {
    this.id = id;
    this.seq = [];
    this.map = {};
  }
  setValue(gl, value, textures) {
    const seq = this.seq;
    for (let i = 0, n = seq.length; i !== n; ++i) {
      const u = seq[i];
      u.setValue(gl, value[u.id], textures);
    }
  }
};
var RePathPart = /(\w+)(\])?(\[|\.)?/g;
function addUniform(container, uniformObject) {
  container.seq.push(uniformObject);
  container.map[uniformObject.id] = uniformObject;
}
function parseUniform(activeInfo, addr, container) {
  const path = activeInfo.name, pathLength = path.length;
  RePathPart.lastIndex = 0;
  while (true) {
    const match = RePathPart.exec(path), matchEnd = RePathPart.lastIndex;
    let id = match[1];
    const idIsIndex = match[2] === "]", subscript = match[3];
    if (idIsIndex) id = id | 0;
    if (subscript === void 0 || subscript === "[" && matchEnd + 2 === pathLength) {
      addUniform(container, subscript === void 0 ? new SingleUniform(id, activeInfo, addr) : new PureArrayUniform(id, activeInfo, addr));
      break;
    } else {
      const map = container.map;
      let next = map[id];
      if (next === void 0) {
        next = new StructuredUniform(id);
        addUniform(container, next);
      }
      container = next;
    }
  }
}
var WebGLUniforms = class {
  constructor(gl, program) {
    this.seq = [];
    this.map = {};
    const n = gl.getProgramParameter(program, gl.ACTIVE_UNIFORMS);
    for (let i = 0; i < n; ++i) {
      const info = gl.getActiveUniform(program, i), addr = gl.getUniformLocation(program, info.name);
      parseUniform(info, addr, this);
    }
  }
  setValue(gl, name, value, textures) {
    const u = this.map[name];
    if (u !== void 0) u.setValue(gl, value, textures);
  }
  setOptional(gl, object, name) {
    const v = object[name];
    if (v !== void 0) this.setValue(gl, name, v);
  }
  static upload(gl, seq, values, textures) {
    for (let i = 0, n = seq.length; i !== n; ++i) {
      const u = seq[i], v = values[u.id];
      if (v.needsUpdate !== false) {
        u.setValue(gl, v.value, textures);
      }
    }
  }
  static seqWithValue(seq, values) {
    const r = [];
    for (let i = 0, n = seq.length; i !== n; ++i) {
      const u = seq[i];
      if (u.id in values) r.push(u);
    }
    return r;
  }
};
function WebGLShader(gl, type, string) {
  const shader = gl.createShader(type);
  gl.shaderSource(shader, string);
  gl.compileShader(shader);
  return shader;
}
var COMPLETION_STATUS_KHR = 37297;
var programIdCount = 0;
function handleSource(string, errorLine) {
  const lines = string.split("\n");
  const lines2 = [];
  const from = Math.max(errorLine - 6, 0);
  const to = Math.min(errorLine + 6, lines.length);
  for (let i = from; i < to; i++) {
    const line = i + 1;
    lines2.push(`${line === errorLine ? ">" : " "} ${line}: ${lines[i]}`);
  }
  return lines2.join("\n");
}
var _m0 = /* @__PURE__ */ new Matrix3();
function getEncodingComponents(colorSpace) {
  ColorManagement._getMatrix(_m0, ColorManagement.workingColorSpace, colorSpace);
  const encodingMatrix = `mat3( ${_m0.elements.map((v) => v.toFixed(4))} )`;
  switch (ColorManagement.getTransfer(colorSpace)) {
    case LinearTransfer:
      return [encodingMatrix, "LinearTransferOETF"];
    case SRGBTransfer:
      return [encodingMatrix, "sRGBTransferOETF"];
    default:
      console.warn("THREE.WebGLProgram: Unsupported color space: ", colorSpace);
      return [encodingMatrix, "LinearTransferOETF"];
  }
}
function getShaderErrors(gl, shader, type) {
  const status = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
  const errors = gl.getShaderInfoLog(shader).trim();
  if (status && errors === "") return "";
  const errorMatches = /ERROR: 0:(\d+)/.exec(errors);
  if (errorMatches) {
    const errorLine = parseInt(errorMatches[1]);
    return type.toUpperCase() + "\n\n" + errors + "\n\n" + handleSource(gl.getShaderSource(shader), errorLine);
  } else {
    return errors;
  }
}
function getTexelEncodingFunction(functionName, colorSpace) {
  const components = getEncodingComponents(colorSpace);
  return [
    `vec4 ${functionName}( vec4 value ) {`,
    `	return ${components[1]}( vec4( value.rgb * ${components[0]}, value.a ) );`,
    "}"
  ].join("\n");
}
function getToneMappingFunction(functionName, toneMapping) {
  let toneMappingName;
  switch (toneMapping) {
    case LinearToneMapping:
      toneMappingName = "Linear";
      break;
    case ReinhardToneMapping:
      toneMappingName = "Reinhard";
      break;
    case CineonToneMapping:
      toneMappingName = "Cineon";
      break;
    case ACESFilmicToneMapping:
      toneMappingName = "ACESFilmic";
      break;
    case AgXToneMapping:
      toneMappingName = "AgX";
      break;
    case NeutralToneMapping:
      toneMappingName = "Neutral";
      break;
    case CustomToneMapping:
      toneMappingName = "Custom";
      break;
    default:
      console.warn("THREE.WebGLProgram: Unsupported toneMapping:", toneMapping);
      toneMappingName = "Linear";
  }
  return "vec3 " + functionName + "( vec3 color ) { return " + toneMappingName + "ToneMapping( color ); }";
}
var _v0 = /* @__PURE__ */ new Vector3();
function getLuminanceFunction() {
  ColorManagement.getLuminanceCoefficients(_v0);
  const r = _v0.x.toFixed(4);
  const g = _v0.y.toFixed(4);
  const b = _v0.z.toFixed(4);
  return [
    "float luminance( const in vec3 rgb ) {",
    `	const vec3 weights = vec3( ${r}, ${g}, ${b} );`,
    "	return dot( weights, rgb );",
    "}"
  ].join("\n");
}
function generateVertexExtensions(parameters) {
  const chunks = [
    parameters.extensionClipCullDistance ? "#extension GL_ANGLE_clip_cull_distance : require" : "",
    parameters.extensionMultiDraw ? "#extension GL_ANGLE_multi_draw : require" : ""
  ];
  return chunks.filter(filterEmptyLine).join("\n");
}
function generateDefines(defines) {
  const chunks = [];
  for (const name in defines) {
    const value = defines[name];
    if (value === false) continue;
    chunks.push("#define " + name + " " + value);
  }
  return chunks.join("\n");
}
function fetchAttributeLocations(gl, program) {
  const attributes = {};
  const n = gl.getProgramParameter(program, gl.ACTIVE_ATTRIBUTES);
  for (let i = 0; i < n; i++) {
    const info = gl.getActiveAttrib(program, i);
    const name = info.name;
    let locationSize = 1;
    if (info.type === gl.FLOAT_MAT2) locationSize = 2;
    if (info.type === gl.FLOAT_MAT3) locationSize = 3;
    if (info.type === gl.FLOAT_MAT4) locationSize = 4;
    attributes[name] = {
      type: info.type,
      location: gl.getAttribLocation(program, name),
      locationSize
    };
  }
  return attributes;
}
function filterEmptyLine(string) {
  return string !== "";
}
function replaceLightNums(string, parameters) {
  const numSpotLightCoords = parameters.numSpotLightShadows + parameters.numSpotLightMaps - parameters.numSpotLightShadowsWithMaps;
  return string.replace(/NUM_DIR_LIGHTS/g, parameters.numDirLights).replace(/NUM_SPOT_LIGHTS/g, parameters.numSpotLights).replace(/NUM_SPOT_LIGHT_MAPS/g, parameters.numSpotLightMaps).replace(/NUM_SPOT_LIGHT_COORDS/g, numSpotLightCoords).replace(/NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights).replace(/NUM_POINT_LIGHTS/g, parameters.numPointLights).replace(/NUM_HEMI_LIGHTS/g, parameters.numHemiLights).replace(/NUM_DIR_LIGHT_SHADOWS/g, parameters.numDirLightShadows).replace(/NUM_SPOT_LIGHT_SHADOWS_WITH_MAPS/g, parameters.numSpotLightShadowsWithMaps).replace(/NUM_SPOT_LIGHT_SHADOWS/g, parameters.numSpotLightShadows).replace(/NUM_POINT_LIGHT_SHADOWS/g, parameters.numPointLightShadows);
}
function replaceClippingPlaneNums(string, parameters) {
  return string.replace(/NUM_CLIPPING_PLANES/g, parameters.numClippingPlanes).replace(/UNION_CLIPPING_PLANES/g, parameters.numClippingPlanes - parameters.numClipIntersection);
}
var includePattern = /^[ \t]*#include +<([\w\d./]+)>/gm;
function resolveIncludes(string) {
  return string.replace(includePattern, includeReplacer);
}
var shaderChunkMap = /* @__PURE__ */ new Map();
function includeReplacer(match, include) {
  let string = ShaderChunk[include];
  if (string === void 0) {
    const newInclude = shaderChunkMap.get(include);
    if (newInclude !== void 0) {
      string = ShaderChunk[newInclude];
      console.warn('THREE.WebGLRenderer: Shader chunk "%s" has been deprecated. Use "%s" instead.', include, newInclude);
    } else {
      throw new Error("Can not resolve #include <" + include + ">");
    }
  }
  return resolveIncludes(string);
}
var unrollLoopPattern = /#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g;
function unrollLoops(string) {
  return string.replace(unrollLoopPattern, loopReplacer);
}
function loopReplacer(match, start, end, snippet) {
  let string = "";
  for (let i = parseInt(start); i < parseInt(end); i++) {
    string += snippet.replace(/\[\s*i\s*\]/g, "[ " + i + " ]").replace(/UNROLLED_LOOP_INDEX/g, i);
  }
  return string;
}
function generatePrecision(parameters) {
  let precisionstring = `precision ${parameters.precision} float;
	precision ${parameters.precision} int;
	precision ${parameters.precision} sampler2D;
	precision ${parameters.precision} samplerCube;
	precision ${parameters.precision} sampler3D;
	precision ${parameters.precision} sampler2DArray;
	precision ${parameters.precision} sampler2DShadow;
	precision ${parameters.precision} samplerCubeShadow;
	precision ${parameters.precision} sampler2DArrayShadow;
	precision ${parameters.precision} isampler2D;
	precision ${parameters.precision} isampler3D;
	precision ${parameters.precision} isamplerCube;
	precision ${parameters.precision} isampler2DArray;
	precision ${parameters.precision} usampler2D;
	precision ${parameters.precision} usampler3D;
	precision ${parameters.precision} usamplerCube;
	precision ${parameters.precision} usampler2DArray;
	`;
  if (parameters.precision === "highp") {
    precisionstring += "\n#define HIGH_PRECISION";
  } else if (parameters.precision === "mediump") {
    precisionstring += "\n#define MEDIUM_PRECISION";
  } else if (parameters.precision === "lowp") {
    precisionstring += "\n#define LOW_PRECISION";
  }
  return precisionstring;
}
function generateShadowMapTypeDefine(parameters) {
  let shadowMapTypeDefine = "SHADOWMAP_TYPE_BASIC";
  if (parameters.shadowMapType === PCFShadowMap) {
    shadowMapTypeDefine = "SHADOWMAP_TYPE_PCF";
  } else if (parameters.shadowMapType === PCFSoftShadowMap) {
    shadowMapTypeDefine = "SHADOWMAP_TYPE_PCF_SOFT";
  } else if (parameters.shadowMapType === VSMShadowMap) {
    shadowMapTypeDefine = "SHADOWMAP_TYPE_VSM";
  }
  return shadowMapTypeDefine;
}
function generateEnvMapTypeDefine(parameters) {
  let envMapTypeDefine = "ENVMAP_TYPE_CUBE";
  if (parameters.envMap) {
    switch (parameters.envMapMode) {
      case CubeReflectionMapping:
      case CubeRefractionMapping:
        envMapTypeDefine = "ENVMAP_TYPE_CUBE";
        break;
      case CubeUVReflectionMapping:
        envMapTypeDefine = "ENVMAP_TYPE_CUBE_UV";
        break;
    }
  }
  return envMapTypeDefine;
}
function generateEnvMapModeDefine(parameters) {
  let envMapModeDefine = "ENVMAP_MODE_REFLECTION";
  if (parameters.envMap) {
    switch (parameters.envMapMode) {
      case CubeRefractionMapping:
        envMapModeDefine = "ENVMAP_MODE_REFRACTION";
        break;
    }
  }
  return envMapModeDefine;
}
function generateEnvMapBlendingDefine(parameters) {
  let envMapBlendingDefine = "ENVMAP_BLENDING_NONE";
  if (parameters.envMap) {
    switch (parameters.combine) {
      case MultiplyOperation:
        envMapBlendingDefine = "ENVMAP_BLENDING_MULTIPLY";
        break;
      case MixOperation:
        envMapBlendingDefine = "ENVMAP_BLENDING_MIX";
        break;
      case AddOperation:
        envMapBlendingDefine = "ENVMAP_BLENDING_ADD";
        break;
    }
  }
  return envMapBlendingDefine;
}
function generateCubeUVSize(parameters) {
  const imageHeight = parameters.envMapCubeUVHeight;
  if (imageHeight === null) return null;
  const maxMip = Math.log2(imageHeight) - 2;
  const texelHeight = 1 / imageHeight;
  const texelWidth = 1 / (3 * Math.max(Math.pow(2, maxMip), 7 * 16));
  return { texelWidth, texelHeight, maxMip };
}
function WebGLProgram(renderer, cacheKey, parameters, bindingStates) {
  const gl = renderer.getContext();
  const defines = parameters.defines;
  let vertexShader = parameters.vertexShader;
  let fragmentShader = parameters.fragmentShader;
  const shadowMapTypeDefine = generateShadowMapTypeDefine(parameters);
  const envMapTypeDefine = generateEnvMapTypeDefine(parameters);
  const envMapModeDefine = generateEnvMapModeDefine(parameters);
  const envMapBlendingDefine = generateEnvMapBlendingDefine(parameters);
  const envMapCubeUVSize = generateCubeUVSize(parameters);
  const customVertexExtensions = generateVertexExtensions(parameters);
  const customDefines = generateDefines(defines);
  const program = gl.createProgram();
  let prefixVertex, prefixFragment;
  let versionString = parameters.glslVersion ? "#version " + parameters.glslVersion + "\n" : "";
  if (parameters.isRawShaderMaterial) {
    prefixVertex = [
      "#define SHADER_TYPE " + parameters.shaderType,
      "#define SHADER_NAME " + parameters.shaderName,
      customDefines
    ].filter(filterEmptyLine).join("\n");
    if (prefixVertex.length > 0) {
      prefixVertex += "\n";
    }
    prefixFragment = [
      "#define SHADER_TYPE " + parameters.shaderType,
      "#define SHADER_NAME " + parameters.shaderName,
      customDefines
    ].filter(filterEmptyLine).join("\n");
    if (prefixFragment.length > 0) {
      prefixFragment += "\n";
    }
  } else {
    prefixVertex = [
      generatePrecision(parameters),
      "#define SHADER_TYPE " + parameters.shaderType,
      "#define SHADER_NAME " + parameters.shaderName,
      customDefines,
      parameters.extensionClipCullDistance ? "#define USE_CLIP_DISTANCE" : "",
      parameters.batching ? "#define USE_BATCHING" : "",
      parameters.batchingColor ? "#define USE_BATCHING_COLOR" : "",
      parameters.instancing ? "#define USE_INSTANCING" : "",
      parameters.instancingColor ? "#define USE_INSTANCING_COLOR" : "",
      parameters.instancingMorph ? "#define USE_INSTANCING_MORPH" : "",
      parameters.useFog && parameters.fog ? "#define USE_FOG" : "",
      parameters.useFog && parameters.fogExp2 ? "#define FOG_EXP2" : "",
      parameters.map ? "#define USE_MAP" : "",
      parameters.envMap ? "#define USE_ENVMAP" : "",
      parameters.envMap ? "#define " + envMapModeDefine : "",
      parameters.lightMap ? "#define USE_LIGHTMAP" : "",
      parameters.aoMap ? "#define USE_AOMAP" : "",
      parameters.bumpMap ? "#define USE_BUMPMAP" : "",
      parameters.normalMap ? "#define USE_NORMALMAP" : "",
      parameters.normalMapObjectSpace ? "#define USE_NORMALMAP_OBJECTSPACE" : "",
      parameters.normalMapTangentSpace ? "#define USE_NORMALMAP_TANGENTSPACE" : "",
      parameters.displacementMap ? "#define USE_DISPLACEMENTMAP" : "",
      parameters.emissiveMap ? "#define USE_EMISSIVEMAP" : "",
      parameters.anisotropy ? "#define USE_ANISOTROPY" : "",
      parameters.anisotropyMap ? "#define USE_ANISOTROPYMAP" : "",
      parameters.clearcoatMap ? "#define USE_CLEARCOATMAP" : "",
      parameters.clearcoatRoughnessMap ? "#define USE_CLEARCOAT_ROUGHNESSMAP" : "",
      parameters.clearcoatNormalMap ? "#define USE_CLEARCOAT_NORMALMAP" : "",
      parameters.iridescenceMap ? "#define USE_IRIDESCENCEMAP" : "",
      parameters.iridescenceThicknessMap ? "#define USE_IRIDESCENCE_THICKNESSMAP" : "",
      parameters.specularMap ? "#define USE_SPECULARMAP" : "",
      parameters.specularColorMap ? "#define USE_SPECULAR_COLORMAP" : "",
      parameters.specularIntensityMap ? "#define USE_SPECULAR_INTENSITYMAP" : "",
      parameters.roughnessMap ? "#define USE_ROUGHNESSMAP" : "",
      parameters.metalnessMap ? "#define USE_METALNESSMAP" : "",
      parameters.alphaMap ? "#define USE_ALPHAMAP" : "",
      parameters.alphaHash ? "#define USE_ALPHAHASH" : "",
      parameters.transmission ? "#define USE_TRANSMISSION" : "",
      parameters.transmissionMap ? "#define USE_TRANSMISSIONMAP" : "",
      parameters.thicknessMap ? "#define USE_THICKNESSMAP" : "",
      parameters.sheenColorMap ? "#define USE_SHEEN_COLORMAP" : "",
      parameters.sheenRoughnessMap ? "#define USE_SHEEN_ROUGHNESSMAP" : "",
      //
      parameters.mapUv ? "#define MAP_UV " + parameters.mapUv : "",
      parameters.alphaMapUv ? "#define ALPHAMAP_UV " + parameters.alphaMapUv : "",
      parameters.lightMapUv ? "#define LIGHTMAP_UV " + parameters.lightMapUv : "",
      parameters.aoMapUv ? "#define AOMAP_UV " + parameters.aoMapUv : "",
      parameters.emissiveMapUv ? "#define EMISSIVEMAP_UV " + parameters.emissiveMapUv : "",
      parameters.bumpMapUv ? "#define BUMPMAP_UV " + parameters.bumpMapUv : "",
      parameters.normalMapUv ? "#define NORMALMAP_UV " + parameters.normalMapUv : "",
      parameters.displacementMapUv ? "#define DISPLACEMENTMAP_UV " + parameters.displacementMapUv : "",
      parameters.metalnessMapUv ? "#define METALNESSMAP_UV " + parameters.metalnessMapUv : "",
      parameters.roughnessMapUv ? "#define ROUGHNESSMAP_UV " + parameters.roughnessMapUv : "",
      parameters.anisotropyMapUv ? "#define ANISOTROPYMAP_UV " + parameters.anisotropyMapUv : "",
      parameters.clearcoatMapUv ? "#define CLEARCOATMAP_UV " + parameters.clearcoatMapUv : "",
      parameters.clearcoatNormalMapUv ? "#define CLEARCOAT_NORMALMAP_UV " + parameters.clearcoatNormalMapUv : "",
      parameters.clearcoatRoughnessMapUv ? "#define CLEARCOAT_ROUGHNESSMAP_UV " + parameters.clearcoatRoughnessMapUv : "",
      parameters.iridescenceMapUv ? "#define IRIDESCENCEMAP_UV " + parameters.iridescenceMapUv : "",
      parameters.iridescenceThicknessMapUv ? "#define IRIDESCENCE_THICKNESSMAP_UV " + parameters.iridescenceThicknessMapUv : "",
      parameters.sheenColorMapUv ? "#define SHEEN_COLORMAP_UV " + parameters.sheenColorMapUv : "",
      parameters.sheenRoughnessMapUv ? "#define SHEEN_ROUGHNESSMAP_UV " + parameters.sheenRoughnessMapUv : "",
      parameters.specularMapUv ? "#define SPECULARMAP_UV " + parameters.specularMapUv : "",
      parameters.specularColorMapUv ? "#define SPECULAR_COLORMAP_UV " + parameters.specularColorMapUv : "",
      parameters.specularIntensityMapUv ? "#define SPECULAR_INTENSITYMAP_UV " + parameters.specularIntensityMapUv : "",
      parameters.transmissionMapUv ? "#define TRANSMISSIONMAP_UV " + parameters.transmissionMapUv : "",
      parameters.thicknessMapUv ? "#define THICKNESSMAP_UV " + parameters.thicknessMapUv : "",
      //
      parameters.vertexTangents && parameters.flatShading === false ? "#define USE_TANGENT" : "",
      parameters.vertexColors ? "#define USE_COLOR" : "",
      parameters.vertexAlphas ? "#define USE_COLOR_ALPHA" : "",
      parameters.vertexUv1s ? "#define USE_UV1" : "",
      parameters.vertexUv2s ? "#define USE_UV2" : "",
      parameters.vertexUv3s ? "#define USE_UV3" : "",
      parameters.pointsUvs ? "#define USE_POINTS_UV" : "",
      parameters.flatShading ? "#define FLAT_SHADED" : "",
      parameters.skinning ? "#define USE_SKINNING" : "",
      parameters.morphTargets ? "#define USE_MORPHTARGETS" : "",
      parameters.morphNormals && parameters.flatShading === false ? "#define USE_MORPHNORMALS" : "",
      parameters.morphColors ? "#define USE_MORPHCOLORS" : "",
      parameters.morphTargetsCount > 0 ? "#define MORPHTARGETS_TEXTURE_STRIDE " + parameters.morphTextureStride : "",
      parameters.morphTargetsCount > 0 ? "#define MORPHTARGETS_COUNT " + parameters.morphTargetsCount : "",
      parameters.doubleSided ? "#define DOUBLE_SIDED" : "",
      parameters.flipSided ? "#define FLIP_SIDED" : "",
      parameters.shadowMapEnabled ? "#define USE_SHADOWMAP" : "",
      parameters.shadowMapEnabled ? "#define " + shadowMapTypeDefine : "",
      parameters.sizeAttenuation ? "#define USE_SIZEATTENUATION" : "",
      parameters.numLightProbes > 0 ? "#define USE_LIGHT_PROBES" : "",
      parameters.logarithmicDepthBuffer ? "#define USE_LOGDEPTHBUF" : "",
      parameters.reverseDepthBuffer ? "#define USE_REVERSEDEPTHBUF" : "",
      "uniform mat4 modelMatrix;",
      "uniform mat4 modelViewMatrix;",
      "uniform mat4 projectionMatrix;",
      "uniform mat4 viewMatrix;",
      "uniform mat3 normalMatrix;",
      "uniform vec3 cameraPosition;",
      "uniform bool isOrthographic;",
      "#ifdef USE_INSTANCING",
      "	attribute mat4 instanceMatrix;",
      "#endif",
      "#ifdef USE_INSTANCING_COLOR",
      "	attribute vec3 instanceColor;",
      "#endif",
      "#ifdef USE_INSTANCING_MORPH",
      "	uniform sampler2D morphTexture;",
      "#endif",
      "attribute vec3 position;",
      "attribute vec3 normal;",
      "attribute vec2 uv;",
      "#ifdef USE_UV1",
      "	attribute vec2 uv1;",
      "#endif",
      "#ifdef USE_UV2",
      "	attribute vec2 uv2;",
      "#endif",
      "#ifdef USE_UV3",
      "	attribute vec2 uv3;",
      "#endif",
      "#ifdef USE_TANGENT",
      "	attribute vec4 tangent;",
      "#endif",
      "#if defined( USE_COLOR_ALPHA )",
      "	attribute vec4 color;",
      "#elif defined( USE_COLOR )",
      "	attribute vec3 color;",
      "#endif",
      "#ifdef USE_SKINNING",
      "	attribute vec4 skinIndex;",
      "	attribute vec4 skinWeight;",
      "#endif",
      "\n"
    ].filter(filterEmptyLine).join("\n");
    prefixFragment = [
      generatePrecision(parameters),
      "#define SHADER_TYPE " + parameters.shaderType,
      "#define SHADER_NAME " + parameters.shaderName,
      customDefines,
      parameters.useFog && parameters.fog ? "#define USE_FOG" : "",
      parameters.useFog && parameters.fogExp2 ? "#define FOG_EXP2" : "",
      parameters.alphaToCoverage ? "#define ALPHA_TO_COVERAGE" : "",
      parameters.map ? "#define USE_MAP" : "",
      parameters.matcap ? "#define USE_MATCAP" : "",
      parameters.envMap ? "#define USE_ENVMAP" : "",
      parameters.envMap ? "#define " + envMapTypeDefine : "",
      parameters.envMap ? "#define " + envMapModeDefine : "",
      parameters.envMap ? "#define " + envMapBlendingDefine : "",
      envMapCubeUVSize ? "#define CUBEUV_TEXEL_WIDTH " + envMapCubeUVSize.texelWidth : "",
      envMapCubeUVSize ? "#define CUBEUV_TEXEL_HEIGHT " + envMapCubeUVSize.texelHeight : "",
      envMapCubeUVSize ? "#define CUBEUV_MAX_MIP " + envMapCubeUVSize.maxMip + ".0" : "",
      parameters.lightMap ? "#define USE_LIGHTMAP" : "",
      parameters.aoMap ? "#define USE_AOMAP" : "",
      parameters.bumpMap ? "#define USE_BUMPMAP" : "",
      parameters.normalMap ? "#define USE_NORMALMAP" : "",
      parameters.normalMapObjectSpace ? "#define USE_NORMALMAP_OBJECTSPACE" : "",
      parameters.normalMapTangentSpace ? "#define USE_NORMALMAP_TANGENTSPACE" : "",
      parameters.emissiveMap ? "#define USE_EMISSIVEMAP" : "",
      parameters.anisotropy ? "#define USE_ANISOTROPY" : "",
      parameters.anisotropyMap ? "#define USE_ANISOTROPYMAP" : "",
      parameters.clearcoat ? "#define USE_CLEARCOAT" : "",
      parameters.clearcoatMap ? "#define USE_CLEARCOATMAP" : "",
      parameters.clearcoatRoughnessMap ? "#define USE_CLEARCOAT_ROUGHNESSMAP" : "",
      parameters.clearcoatNormalMap ? "#define USE_CLEARCOAT_NORMALMAP" : "",
      parameters.dispersion ? "#define USE_DISPERSION" : "",
      parameters.iridescence ? "#define USE_IRIDESCENCE" : "",
      parameters.iridescenceMap ? "#define USE_IRIDESCENCEMAP" : "",
      parameters.iridescenceThicknessMap ? "#define USE_IRIDESCENCE_THICKNESSMAP" : "",
      parameters.specularMap ? "#define USE_SPECULARMAP" : "",
      parameters.specularColorMap ? "#define USE_SPECULAR_COLORMAP" : "",
      parameters.specularIntensityMap ? "#define USE_SPECULAR_INTENSITYMAP" : "",
      parameters.roughnessMap ? "#define USE_ROUGHNESSMAP" : "",
      parameters.metalnessMap ? "#define USE_METALNESSMAP" : "",
      parameters.alphaMap ? "#define USE_ALPHAMAP" : "",
      parameters.alphaTest ? "#define USE_ALPHATEST" : "",
      parameters.alphaHash ? "#define USE_ALPHAHASH" : "",
      parameters.sheen ? "#define USE_SHEEN" : "",
      parameters.sheenColorMap ? "#define USE_SHEEN_COLORMAP" : "",
      parameters.sheenRoughnessMap ? "#define USE_SHEEN_ROUGHNESSMAP" : "",
      parameters.transmission ? "#define USE_TRANSMISSION" : "",
      parameters.transmissionMap ? "#define USE_TRANSMISSIONMAP" : "",
      parameters.thicknessMap ? "#define USE_THICKNESSMAP" : "",
      parameters.vertexTangents && parameters.flatShading === false ? "#define USE_TANGENT" : "",
      parameters.vertexColors || parameters.instancingColor || parameters.batchingColor ? "#define USE_COLOR" : "",
      parameters.vertexAlphas ? "#define USE_COLOR_ALPHA" : "",
      parameters.vertexUv1s ? "#define USE_UV1" : "",
      parameters.vertexUv2s ? "#define USE_UV2" : "",
      parameters.vertexUv3s ? "#define USE_UV3" : "",
      parameters.pointsUvs ? "#define USE_POINTS_UV" : "",
      parameters.gradientMap ? "#define USE_GRADIENTMAP" : "",
      parameters.flatShading ? "#define FLAT_SHADED" : "",
      parameters.doubleSided ? "#define DOUBLE_SIDED" : "",
      parameters.flipSided ? "#define FLIP_SIDED" : "",
      parameters.shadowMapEnabled ? "#define USE_SHADOWMAP" : "",
      parameters.shadowMapEnabled ? "#define " + shadowMapTypeDefine : "",
      parameters.premultipliedAlpha ? "#define PREMULTIPLIED_ALPHA" : "",
      parameters.numLightProbes > 0 ? "#define USE_LIGHT_PROBES" : "",
      parameters.decodeVideoTexture ? "#define DECODE_VIDEO_TEXTURE" : "",
      parameters.decodeVideoTextureEmissive ? "#define DECODE_VIDEO_TEXTURE_EMISSIVE" : "",
      parameters.logarithmicDepthBuffer ? "#define USE_LOGDEPTHBUF" : "",
      parameters.reverseDepthBuffer ? "#define USE_REVERSEDEPTHBUF" : "",
      "uniform mat4 viewMatrix;",
      "uniform vec3 cameraPosition;",
      "uniform bool isOrthographic;",
      parameters.toneMapping !== NoToneMapping ? "#define TONE_MAPPING" : "",
      parameters.toneMapping !== NoToneMapping ? ShaderChunk["tonemapping_pars_fragment"] : "",
      // this code is required here because it is used by the toneMapping() function defined below
      parameters.toneMapping !== NoToneMapping ? getToneMappingFunction("toneMapping", parameters.toneMapping) : "",
      parameters.dithering ? "#define DITHERING" : "",
      parameters.opaque ? "#define OPAQUE" : "",
      ShaderChunk["colorspace_pars_fragment"],
      // this code is required here because it is used by the various encoding/decoding function defined below
      getTexelEncodingFunction("linearToOutputTexel", parameters.outputColorSpace),
      getLuminanceFunction(),
      parameters.useDepthPacking ? "#define DEPTH_PACKING " + parameters.depthPacking : "",
      "\n"
    ].filter(filterEmptyLine).join("\n");
  }
  vertexShader = resolveIncludes(vertexShader);
  vertexShader = replaceLightNums(vertexShader, parameters);
  vertexShader = replaceClippingPlaneNums(vertexShader, parameters);
  fragmentShader = resolveIncludes(fragmentShader);
  fragmentShader = replaceLightNums(fragmentShader, parameters);
  fragmentShader = replaceClippingPlaneNums(fragmentShader, parameters);
  vertexShader = unrollLoops(vertexShader);
  fragmentShader = unrollLoops(fragmentShader);
  if (parameters.isRawShaderMaterial !== true) {
    versionString = "#version 300 es\n";
    prefixVertex = [
      customVertexExtensions,
      "#define attribute in",
      "#define varying out",
      "#define texture2D texture"
    ].join("\n") + "\n" + prefixVertex;
    prefixFragment = [
      "#define varying in",
      parameters.glslVersion === GLSL3 ? "" : "layout(location = 0) out highp vec4 pc_fragColor;",
      parameters.glslVersion === GLSL3 ? "" : "#define gl_FragColor pc_fragColor",
      "#define gl_FragDepthEXT gl_FragDepth",
      "#define texture2D texture",
      "#define textureCube texture",
      "#define texture2DProj textureProj",
      "#define texture2DLodEXT textureLod",
      "#define texture2DProjLodEXT textureProjLod",
      "#define textureCubeLodEXT textureLod",
      "#define texture2DGradEXT textureGrad",
      "#define texture2DProjGradEXT textureProjGrad",
      "#define textureCubeGradEXT textureGrad"
    ].join("\n") + "\n" + prefixFragment;
  }
  const vertexGlsl = versionString + prefixVertex + vertexShader;
  const fragmentGlsl = versionString + prefixFragment + fragmentShader;
  const glVertexShader = WebGLShader(gl, gl.VERTEX_SHADER, vertexGlsl);
  const glFragmentShader = WebGLShader(gl, gl.FRAGMENT_SHADER, fragmentGlsl);
  gl.attachShader(program, glVertexShader);
  gl.attachShader(program, glFragmentShader);
  if (parameters.index0AttributeName !== void 0) {
    gl.bindAttribLocation(program, 0, parameters.index0AttributeName);
  } else if (parameters.morphTargets === true) {
    gl.bindAttribLocation(program, 0, "position");
  }
  gl.linkProgram(program);
  function onFirstUse(self2) {
    if (renderer.debug.checkShaderErrors) {
      const programLog = gl.getProgramInfoLog(program).trim();
      const vertexLog = gl.getShaderInfoLog(glVertexShader).trim();
      const fragmentLog = gl.getShaderInfoLog(glFragmentShader).trim();
      let runnable = true;
      let haveDiagnostics = true;
      if (gl.getProgramParameter(program, gl.LINK_STATUS) === false) {
        runnable = false;
        if (typeof renderer.debug.onShaderError === "function") {
          renderer.debug.onShaderError(gl, program, glVertexShader, glFragmentShader);
        } else {
          const vertexErrors = getShaderErrors(gl, glVertexShader, "vertex");
          const fragmentErrors = getShaderErrors(gl, glFragmentShader, "fragment");
          console.error(
            "THREE.WebGLProgram: Shader Error " + gl.getError() + " - VALIDATE_STATUS " + gl.getProgramParameter(program, gl.VALIDATE_STATUS) + "\n\nMaterial Name: " + self2.name + "\nMaterial Type: " + self2.type + "\n\nProgram Info Log: " + programLog + "\n" + vertexErrors + "\n" + fragmentErrors
          );
        }
      } else if (programLog !== "") {
        console.warn("THREE.WebGLProgram: Program Info Log:", programLog);
      } else if (vertexLog === "" || fragmentLog === "") {
        haveDiagnostics = false;
      }
      if (haveDiagnostics) {
        self2.diagnostics = {
          runnable,
          programLog,
          vertexShader: {
            log: vertexLog,
            prefix: prefixVertex
          },
          fragmentShader: {
            log: fragmentLog,
            prefix: prefixFragment
          }
        };
      }
    }
    gl.deleteShader(glVertexShader);
    gl.deleteShader(glFragmentShader);
    cachedUniforms = new WebGLUniforms(gl, program);
    cachedAttributes = fetchAttributeLocations(gl, program);
  }
  let cachedUniforms;
  this.getUniforms = function() {
    if (cachedUniforms === void 0) {
      onFirstUse(this);
    }
    return cachedUniforms;
  };
  let cachedAttributes;
  this.getAttributes = function() {
    if (cachedAttributes === void 0) {
      onFirstUse(this);
    }
    return cachedAttributes;
  };
  let programReady = parameters.rendererExtensionParallelShaderCompile === false;
  this.isReady = function() {
    if (programReady === false) {
      programReady = gl.getProgramParameter(program, COMPLETION_STATUS_KHR);
    }
    return programReady;
  };
  this.destroy = function() {
    bindingStates.releaseStatesOfProgram(this);
    gl.deleteProgram(program);
    this.program = void 0;
  };
  this.type = parameters.shaderType;
  this.name = parameters.shaderName;
  this.id = programIdCount++;
  this.cacheKey = cacheKey;
  this.usedTimes = 1;
  this.program = program;
  this.vertexShader = glVertexShader;
  this.fragmentShader = glFragmentShader;
  return this;
}
var _id = 0;
var WebGLShaderCache = class {
  constructor() {
    this.shaderCache = /* @__PURE__ */ new Map();
    this.materialCache = /* @__PURE__ */ new Map();
  }
  update(material) {
    const vertexShader = material.vertexShader;
    const fragmentShader = material.fragmentShader;
    const vertexShaderStage = this._getShaderStage(vertexShader);
    const fragmentShaderStage = this._getShaderStage(fragmentShader);
    const materialShaders = this._getShaderCacheForMaterial(material);
    if (materialShaders.has(vertexShaderStage) === false) {
      materialShaders.add(vertexShaderStage);
      vertexShaderStage.usedTimes++;
    }
    if (materialShaders.has(fragmentShaderStage) === false) {
      materialShaders.add(fragmentShaderStage);
      fragmentShaderStage.usedTimes++;
    }
    return this;
  }
  remove(material) {
    const materialShaders = this.materialCache.get(material);
    for (const shaderStage of materialShaders) {
      shaderStage.usedTimes--;
      if (shaderStage.usedTimes === 0) this.shaderCache.delete(shaderStage.code);
    }
    this.materialCache.delete(material);
    return this;
  }
  getVertexShaderID(material) {
    return this._getShaderStage(material.vertexShader).id;
  }
  getFragmentShaderID(material) {
    return this._getShaderStage(material.fragmentShader).id;
  }
  dispose() {
    this.shaderCache.clear();
    this.materialCache.clear();
  }
  _getShaderCacheForMaterial(material) {
    const cache = this.materialCache;
    let set = cache.get(material);
    if (set === void 0) {
      set = /* @__PURE__ */ new Set();
      cache.set(material, set);
    }
    return set;
  }
  _getShaderStage(code) {
    const cache = this.shaderCache;
    let stage = cache.get(code);
    if (stage === void 0) {
      stage = new WebGLShaderStage(code);
      cache.set(code, stage);
    }
    return stage;
  }
};
var WebGLShaderStage = class {
  constructor(code) {
    this.id = _id++;
    this.code = code;
    this.usedTimes = 0;
  }
};
function WebGLPrograms(renderer, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping) {
  const _programLayers = new Layers();
  const _customShaders = new WebGLShaderCache();
  const _activeChannels = /* @__PURE__ */ new Set();
  const programs = [];
  const logarithmicDepthBuffer = capabilities.logarithmicDepthBuffer;
  const SUPPORTS_VERTEX_TEXTURES = capabilities.vertexTextures;
  let precision = capabilities.precision;
  const shaderIDs = {
    MeshDepthMaterial: "depth",
    MeshDistanceMaterial: "distanceRGBA",
    MeshNormalMaterial: "normal",
    MeshBasicMaterial: "basic",
    MeshLambertMaterial: "lambert",
    MeshPhongMaterial: "phong",
    MeshToonMaterial: "toon",
    MeshStandardMaterial: "physical",
    MeshPhysicalMaterial: "physical",
    MeshMatcapMaterial: "matcap",
    LineBasicMaterial: "basic",
    LineDashedMaterial: "dashed",
    PointsMaterial: "points",
    ShadowMaterial: "shadow",
    SpriteMaterial: "sprite"
  };
  function getChannel(value) {
    _activeChannels.add(value);
    if (value === 0) return "uv";
    return `uv${value}`;
  }
  function getParameters(material, lights, shadows, scene, object) {
    const fog = scene.fog;
    const geometry = object.geometry;
    const environment = material.isMeshStandardMaterial ? scene.environment : null;
    const envMap = (material.isMeshStandardMaterial ? cubeuvmaps : cubemaps).get(material.envMap || environment);
    const envMapCubeUVHeight = !!envMap && envMap.mapping === CubeUVReflectionMapping ? envMap.image.height : null;
    const shaderID = shaderIDs[material.type];
    if (material.precision !== null) {
      precision = capabilities.getMaxPrecision(material.precision);
      if (precision !== material.precision) {
        console.warn("THREE.WebGLProgram.getParameters:", material.precision, "not supported, using", precision, "instead.");
      }
    }
    const morphAttribute = geometry.morphAttributes.position || geometry.morphAttributes.normal || geometry.morphAttributes.color;
    const morphTargetsCount = morphAttribute !== void 0 ? morphAttribute.length : 0;
    let morphTextureStride = 0;
    if (geometry.morphAttributes.position !== void 0) morphTextureStride = 1;
    if (geometry.morphAttributes.normal !== void 0) morphTextureStride = 2;
    if (geometry.morphAttributes.color !== void 0) morphTextureStride = 3;
    let vertexShader, fragmentShader;
    let customVertexShaderID, customFragmentShaderID;
    if (shaderID) {
      const shader = ShaderLib[shaderID];
      vertexShader = shader.vertexShader;
      fragmentShader = shader.fragmentShader;
    } else {
      vertexShader = material.vertexShader;
      fragmentShader = material.fragmentShader;
      _customShaders.update(material);
      customVertexShaderID = _customShaders.getVertexShaderID(material);
      customFragmentShaderID = _customShaders.getFragmentShaderID(material);
    }
    const currentRenderTarget = renderer.getRenderTarget();
    const reverseDepthBuffer = renderer.state.buffers.depth.getReversed();
    const IS_INSTANCEDMESH = object.isInstancedMesh === true;
    const IS_BATCHEDMESH = object.isBatchedMesh === true;
    const HAS_MAP = !!material.map;
    const HAS_MATCAP = !!material.matcap;
    const HAS_ENVMAP = !!envMap;
    const HAS_AOMAP = !!material.aoMap;
    const HAS_LIGHTMAP = !!material.lightMap;
    const HAS_BUMPMAP = !!material.bumpMap;
    const HAS_NORMALMAP = !!material.normalMap;
    const HAS_DISPLACEMENTMAP = !!material.displacementMap;
    const HAS_EMISSIVEMAP = !!material.emissiveMap;
    const HAS_METALNESSMAP = !!material.metalnessMap;
    const HAS_ROUGHNESSMAP = !!material.roughnessMap;
    const HAS_ANISOTROPY = material.anisotropy > 0;
    const HAS_CLEARCOAT = material.clearcoat > 0;
    const HAS_DISPERSION = material.dispersion > 0;
    const HAS_IRIDESCENCE = material.iridescence > 0;
    const HAS_SHEEN = material.sheen > 0;
    const HAS_TRANSMISSION = material.transmission > 0;
    const HAS_ANISOTROPYMAP = HAS_ANISOTROPY && !!material.anisotropyMap;
    const HAS_CLEARCOATMAP = HAS_CLEARCOAT && !!material.clearcoatMap;
    const HAS_CLEARCOAT_NORMALMAP = HAS_CLEARCOAT && !!material.clearcoatNormalMap;
    const HAS_CLEARCOAT_ROUGHNESSMAP = HAS_CLEARCOAT && !!material.clearcoatRoughnessMap;
    const HAS_IRIDESCENCEMAP = HAS_IRIDESCENCE && !!material.iridescenceMap;
    const HAS_IRIDESCENCE_THICKNESSMAP = HAS_IRIDESCENCE && !!material.iridescenceThicknessMap;
    const HAS_SHEEN_COLORMAP = HAS_SHEEN && !!material.sheenColorMap;
    const HAS_SHEEN_ROUGHNESSMAP = HAS_SHEEN && !!material.sheenRoughnessMap;
    const HAS_SPECULARMAP = !!material.specularMap;
    const HAS_SPECULAR_COLORMAP = !!material.specularColorMap;
    const HAS_SPECULAR_INTENSITYMAP = !!material.specularIntensityMap;
    const HAS_TRANSMISSIONMAP = HAS_TRANSMISSION && !!material.transmissionMap;
    const HAS_THICKNESSMAP = HAS_TRANSMISSION && !!material.thicknessMap;
    const HAS_GRADIENTMAP = !!material.gradientMap;
    const HAS_ALPHAMAP = !!material.alphaMap;
    const HAS_ALPHATEST = material.alphaTest > 0;
    const HAS_ALPHAHASH = !!material.alphaHash;
    const HAS_EXTENSIONS = !!material.extensions;
    let toneMapping = NoToneMapping;
    if (material.toneMapped) {
      if (currentRenderTarget === null || currentRenderTarget.isXRRenderTarget === true) {
        toneMapping = renderer.toneMapping;
      }
    }
    const parameters = {
      shaderID,
      shaderType: material.type,
      shaderName: material.name,
      vertexShader,
      fragmentShader,
      defines: material.defines,
      customVertexShaderID,
      customFragmentShaderID,
      isRawShaderMaterial: material.isRawShaderMaterial === true,
      glslVersion: material.glslVersion,
      precision,
      batching: IS_BATCHEDMESH,
      batchingColor: IS_BATCHEDMESH && object._colorsTexture !== null,
      instancing: IS_INSTANCEDMESH,
      instancingColor: IS_INSTANCEDMESH && object.instanceColor !== null,
      instancingMorph: IS_INSTANCEDMESH && object.morphTexture !== null,
      supportsVertexTextures: SUPPORTS_VERTEX_TEXTURES,
      outputColorSpace: currentRenderTarget === null ? renderer.outputColorSpace : currentRenderTarget.isXRRenderTarget === true ? currentRenderTarget.texture.colorSpace : LinearSRGBColorSpace,
      alphaToCoverage: !!material.alphaToCoverage,
      map: HAS_MAP,
      matcap: HAS_MATCAP,
      envMap: HAS_ENVMAP,
      envMapMode: HAS_ENVMAP && envMap.mapping,
      envMapCubeUVHeight,
      aoMap: HAS_AOMAP,
      lightMap: HAS_LIGHTMAP,
      bumpMap: HAS_BUMPMAP,
      normalMap: HAS_NORMALMAP,
      displacementMap: SUPPORTS_VERTEX_TEXTURES && HAS_DISPLACEMENTMAP,
      emissiveMap: HAS_EMISSIVEMAP,
      normalMapObjectSpace: HAS_NORMALMAP && material.normalMapType === ObjectSpaceNormalMap,
      normalMapTangentSpace: HAS_NORMALMAP && material.normalMapType === TangentSpaceNormalMap,
      metalnessMap: HAS_METALNESSMAP,
      roughnessMap: HAS_ROUGHNESSMAP,
      anisotropy: HAS_ANISOTROPY,
      anisotropyMap: HAS_ANISOTROPYMAP,
      clearcoat: HAS_CLEARCOAT,
      clearcoatMap: HAS_CLEARCOATMAP,
      clearcoatNormalMap: HAS_CLEARCOAT_NORMALMAP,
      clearcoatRoughnessMap: HAS_CLEARCOAT_ROUGHNESSMAP,
      dispersion: HAS_DISPERSION,
      iridescence: HAS_IRIDESCENCE,
      iridescenceMap: HAS_IRIDESCENCEMAP,
      iridescenceThicknessMap: HAS_IRIDESCENCE_THICKNESSMAP,
      sheen: HAS_SHEEN,
      sheenColorMap: HAS_SHEEN_COLORMAP,
      sheenRoughnessMap: HAS_SHEEN_ROUGHNESSMAP,
      specularMap: HAS_SPECULARMAP,
      specularColorMap: HAS_SPECULAR_COLORMAP,
      specularIntensityMap: HAS_SPECULAR_INTENSITYMAP,
      transmission: HAS_TRANSMISSION,
      transmissionMap: HAS_TRANSMISSIONMAP,
      thicknessMap: HAS_THICKNESSMAP,
      gradientMap: HAS_GRADIENTMAP,
      opaque: material.transparent === false && material.blending === NormalBlending && material.alphaToCoverage === false,
      alphaMap: HAS_ALPHAMAP,
      alphaTest: HAS_ALPHATEST,
      alphaHash: HAS_ALPHAHASH,
      combine: material.combine,
      //
      mapUv: HAS_MAP && getChannel(material.map.channel),
      aoMapUv: HAS_AOMAP && getChannel(material.aoMap.channel),
      lightMapUv: HAS_LIGHTMAP && getChannel(material.lightMap.channel),
      bumpMapUv: HAS_BUMPMAP && getChannel(material.bumpMap.channel),
      normalMapUv: HAS_NORMALMAP && getChannel(material.normalMap.channel),
      displacementMapUv: HAS_DISPLACEMENTMAP && getChannel(material.displacementMap.channel),
      emissiveMapUv: HAS_EMISSIVEMAP && getChannel(material.emissiveMap.channel),
      metalnessMapUv: HAS_METALNESSMAP && getChannel(material.metalnessMap.channel),
      roughnessMapUv: HAS_ROUGHNESSMAP && getChannel(material.roughnessMap.channel),
      anisotropyMapUv: HAS_ANISOTROPYMAP && getChannel(material.anisotropyMap.channel),
      clearcoatMapUv: HAS_CLEARCOATMAP && getChannel(material.clearcoatMap.channel),
      clearcoatNormalMapUv: HAS_CLEARCOAT_NORMALMAP && getChannel(material.clearcoatNormalMap.channel),
      clearcoatRoughnessMapUv: HAS_CLEARCOAT_ROUGHNESSMAP && getChannel(material.clearcoatRoughnessMap.channel),
      iridescenceMapUv: HAS_IRIDESCENCEMAP && getChannel(material.iridescenceMap.channel),
      iridescenceThicknessMapUv: HAS_IRIDESCENCE_THICKNESSMAP && getChannel(material.iridescenceThicknessMap.channel),
      sheenColorMapUv: HAS_SHEEN_COLORMAP && getChannel(material.sheenColorMap.channel),
      sheenRoughnessMapUv: HAS_SHEEN_ROUGHNESSMAP && getChannel(material.sheenRoughnessMap.channel),
      specularMapUv: HAS_SPECULARMAP && getChannel(material.specularMap.channel),
      specularColorMapUv: HAS_SPECULAR_COLORMAP && getChannel(material.specularColorMap.channel),
      specularIntensityMapUv: HAS_SPECULAR_INTENSITYMAP && getChannel(material.specularIntensityMap.channel),
      transmissionMapUv: HAS_TRANSMISSIONMAP && getChannel(material.transmissionMap.channel),
      thicknessMapUv: HAS_THICKNESSMAP && getChannel(material.thicknessMap.channel),
      alphaMapUv: HAS_ALPHAMAP && getChannel(material.alphaMap.channel),
      //
      vertexTangents: !!geometry.attributes.tangent && (HAS_NORMALMAP || HAS_ANISOTROPY),
      vertexColors: material.vertexColors,
      vertexAlphas: material.vertexColors === true && !!geometry.attributes.color && geometry.attributes.color.itemSize === 4,
      pointsUvs: object.isPoints === true && !!geometry.attributes.uv && (HAS_MAP || HAS_ALPHAMAP),
      fog: !!fog,
      useFog: material.fog === true,
      fogExp2: !!fog && fog.isFogExp2,
      flatShading: material.flatShading === true,
      sizeAttenuation: material.sizeAttenuation === true,
      logarithmicDepthBuffer,
      reverseDepthBuffer,
      skinning: object.isSkinnedMesh === true,
      morphTargets: geometry.morphAttributes.position !== void 0,
      morphNormals: geometry.morphAttributes.normal !== void 0,
      morphColors: geometry.morphAttributes.color !== void 0,
      morphTargetsCount,
      morphTextureStride,
      numDirLights: lights.directional.length,
      numPointLights: lights.point.length,
      numSpotLights: lights.spot.length,
      numSpotLightMaps: lights.spotLightMap.length,
      numRectAreaLights: lights.rectArea.length,
      numHemiLights: lights.hemi.length,
      numDirLightShadows: lights.directionalShadowMap.length,
      numPointLightShadows: lights.pointShadowMap.length,
      numSpotLightShadows: lights.spotShadowMap.length,
      numSpotLightShadowsWithMaps: lights.numSpotLightShadowsWithMaps,
      numLightProbes: lights.numLightProbes,
      numClippingPlanes: clipping.numPlanes,
      numClipIntersection: clipping.numIntersection,
      dithering: material.dithering,
      shadowMapEnabled: renderer.shadowMap.enabled && shadows.length > 0,
      shadowMapType: renderer.shadowMap.type,
      toneMapping,
      decodeVideoTexture: HAS_MAP && material.map.isVideoTexture === true && ColorManagement.getTransfer(material.map.colorSpace) === SRGBTransfer,
      decodeVideoTextureEmissive: HAS_EMISSIVEMAP && material.emissiveMap.isVideoTexture === true && ColorManagement.getTransfer(material.emissiveMap.colorSpace) === SRGBTransfer,
      premultipliedAlpha: material.premultipliedAlpha,
      doubleSided: material.side === DoubleSide,
      flipSided: material.side === BackSide,
      useDepthPacking: material.depthPacking >= 0,
      depthPacking: material.depthPacking || 0,
      index0AttributeName: material.index0AttributeName,
      extensionClipCullDistance: HAS_EXTENSIONS && material.extensions.clipCullDistance === true && extensions.has("WEBGL_clip_cull_distance"),
      extensionMultiDraw: (HAS_EXTENSIONS && material.extensions.multiDraw === true || IS_BATCHEDMESH) && extensions.has("WEBGL_multi_draw"),
      rendererExtensionParallelShaderCompile: extensions.has("KHR_parallel_shader_compile"),
      customProgramCacheKey: material.customProgramCacheKey()
    };
    parameters.vertexUv1s = _activeChannels.has(1);
    parameters.vertexUv2s = _activeChannels.has(2);
    parameters.vertexUv3s = _activeChannels.has(3);
    _activeChannels.clear();
    return parameters;
  }
  function getProgramCacheKey(parameters) {
    const array = [];
    if (parameters.shaderID) {
      array.push(parameters.shaderID);
    } else {
      array.push(parameters.customVertexShaderID);
      array.push(parameters.customFragmentShaderID);
    }
    if (parameters.defines !== void 0) {
      for (const name in parameters.defines) {
        array.push(name);
        array.push(parameters.defines[name]);
      }
    }
    if (parameters.isRawShaderMaterial === false) {
      getProgramCacheKeyParameters(array, parameters);
      getProgramCacheKeyBooleans(array, parameters);
      array.push(renderer.outputColorSpace);
    }
    array.push(parameters.customProgramCacheKey);
    return array.join();
  }
  function getProgramCacheKeyParameters(array, parameters) {
    array.push(parameters.precision);
    array.push(parameters.outputColorSpace);
    array.push(parameters.envMapMode);
    array.push(parameters.envMapCubeUVHeight);
    array.push(parameters.mapUv);
    array.push(parameters.alphaMapUv);
    array.push(parameters.lightMapUv);
    array.push(parameters.aoMapUv);
    array.push(parameters.bumpMapUv);
    array.push(parameters.normalMapUv);
    array.push(parameters.displacementMapUv);
    array.push(parameters.emissiveMapUv);
    array.push(parameters.metalnessMapUv);
    array.push(parameters.roughnessMapUv);
    array.push(parameters.anisotropyMapUv);
    array.push(parameters.clearcoatMapUv);
    array.push(parameters.clearcoatNormalMapUv);
    array.push(parameters.clearcoatRoughnessMapUv);
    array.push(parameters.iridescenceMapUv);
    array.push(parameters.iridescenceThicknessMapUv);
    array.push(parameters.sheenColorMapUv);
    array.push(parameters.sheenRoughnessMapUv);
    array.push(parameters.specularMapUv);
    array.push(parameters.specularColorMapUv);
    array.push(parameters.specularIntensityMapUv);
    array.push(parameters.transmissionMapUv);
    array.push(parameters.thicknessMapUv);
    array.push(parameters.combine);
    array.push(parameters.fogExp2);
    array.push(parameters.sizeAttenuation);
    array.push(parameters.morphTargetsCount);
    array.push(parameters.morphAttributeCount);
    array.push(parameters.numDirLights);
    array.push(parameters.numPointLights);
    array.push(parameters.numSpotLights);
    array.push(parameters.numSpotLightMaps);
    array.push(parameters.numHemiLights);
    array.push(parameters.numRectAreaLights);
    array.push(parameters.numDirLightShadows);
    array.push(parameters.numPointLightShadows);
    array.push(parameters.numSpotLightShadows);
    array.push(parameters.numSpotLightShadowsWithMaps);
    array.push(parameters.numLightProbes);
    array.push(parameters.shadowMapType);
    array.push(parameters.toneMapping);
    array.push(parameters.numClippingPlanes);
    array.push(parameters.numClipIntersection);
    array.push(parameters.depthPacking);
  }
  function getProgramCacheKeyBooleans(array, parameters) {
    _programLayers.disableAll();
    if (parameters.supportsVertexTextures)
      _programLayers.enable(0);
    if (parameters.instancing)
      _programLayers.enable(1);
    if (parameters.instancingColor)
      _programLayers.enable(2);
    if (parameters.instancingMorph)
      _programLayers.enable(3);
    if (parameters.matcap)
      _programLayers.enable(4);
    if (parameters.envMap)
      _programLayers.enable(5);
    if (parameters.normalMapObjectSpace)
      _programLayers.enable(6);
    if (parameters.normalMapTangentSpace)
      _programLayers.enable(7);
    if (parameters.clearcoat)
      _programLayers.enable(8);
    if (parameters.iridescence)
      _programLayers.enable(9);
    if (parameters.alphaTest)
      _programLayers.enable(10);
    if (parameters.vertexColors)
      _programLayers.enable(11);
    if (parameters.vertexAlphas)
      _programLayers.enable(12);
    if (parameters.vertexUv1s)
      _programLayers.enable(13);
    if (parameters.vertexUv2s)
      _programLayers.enable(14);
    if (parameters.vertexUv3s)
      _programLayers.enable(15);
    if (parameters.vertexTangents)
      _programLayers.enable(16);
    if (parameters.anisotropy)
      _programLayers.enable(17);
    if (parameters.alphaHash)
      _programLayers.enable(18);
    if (parameters.batching)
      _programLayers.enable(19);
    if (parameters.dispersion)
      _programLayers.enable(20);
    if (parameters.batchingColor)
      _programLayers.enable(21);
    array.push(_programLayers.mask);
    _programLayers.disableAll();
    if (parameters.fog)
      _programLayers.enable(0);
    if (parameters.useFog)
      _programLayers.enable(1);
    if (parameters.flatShading)
      _programLayers.enable(2);
    if (parameters.logarithmicDepthBuffer)
      _programLayers.enable(3);
    if (parameters.reverseDepthBuffer)
      _programLayers.enable(4);
    if (parameters.skinning)
      _programLayers.enable(5);
    if (parameters.morphTargets)
      _programLayers.enable(6);
    if (parameters.morphNormals)
      _programLayers.enable(7);
    if (parameters.morphColors)
      _programLayers.enable(8);
    if (parameters.premultipliedAlpha)
      _programLayers.enable(9);
    if (parameters.shadowMapEnabled)
      _programLayers.enable(10);
    if (parameters.doubleSided)
      _programLayers.enable(11);
    if (parameters.flipSided)
      _programLayers.enable(12);
    if (parameters.useDepthPacking)
      _programLayers.enable(13);
    if (parameters.dithering)
      _programLayers.enable(14);
    if (parameters.transmission)
      _programLayers.enable(15);
    if (parameters.sheen)
      _programLayers.enable(16);
    if (parameters.opaque)
      _programLayers.enable(17);
    if (parameters.pointsUvs)
      _programLayers.enable(18);
    if (parameters.decodeVideoTexture)
      _programLayers.enable(19);
    if (parameters.decodeVideoTextureEmissive)
      _programLayers.enable(20);
    if (parameters.alphaToCoverage)
      _programLayers.enable(21);
    array.push(_programLayers.mask);
  }
  function getUniforms(material) {
    const shaderID = shaderIDs[material.type];
    let uniforms;
    if (shaderID) {
      const shader = ShaderLib[shaderID];
      uniforms = UniformsUtils.clone(shader.uniforms);
    } else {
      uniforms = material.uniforms;
    }
    return uniforms;
  }
  function acquireProgram(parameters, cacheKey) {
    let program;
    for (let p = 0, pl = programs.length; p < pl; p++) {
      const preexistingProgram = programs[p];
      if (preexistingProgram.cacheKey === cacheKey) {
        program = preexistingProgram;
        ++program.usedTimes;
        break;
      }
    }
    if (program === void 0) {
      program = new WebGLProgram(renderer, cacheKey, parameters, bindingStates);
      programs.push(program);
    }
    return program;
  }
  function releaseProgram(program) {
    if (--program.usedTimes === 0) {
      const i = programs.indexOf(program);
      programs[i] = programs[programs.length - 1];
      programs.pop();
      program.destroy();
    }
  }
  function releaseShaderCache(material) {
    _customShaders.remove(material);
  }
  function dispose() {
    _customShaders.dispose();
  }
  return {
    getParameters,
    getProgramCacheKey,
    getUniforms,
    acquireProgram,
    releaseProgram,
    releaseShaderCache,
    // Exposed for resource monitoring & error feedback via renderer.info:
    programs,
    dispose
  };
}
function WebGLProperties() {
  let properties = /* @__PURE__ */ new WeakMap();
  function has(object) {
    return properties.has(object);
  }
  function get(object) {
    let map = properties.get(object);
    if (map === void 0) {
      map = {};
      properties.set(object, map);
    }
    return map;
  }
  function remove(object) {
    properties.delete(object);
  }
  function update(object, key, value) {
    properties.get(object)[key] = value;
  }
  function dispose() {
    properties = /* @__PURE__ */ new WeakMap();
  }
  return {
    has,
    get,
    remove,
    update,
    dispose
  };
}
function painterSortStable(a, b) {
  if (a.groupOrder !== b.groupOrder) {
    return a.groupOrder - b.groupOrder;
  } else if (a.renderOrder !== b.renderOrder) {
    return a.renderOrder - b.renderOrder;
  } else if (a.material.id !== b.material.id) {
    return a.material.id - b.material.id;
  } else if (a.z !== b.z) {
    return a.z - b.z;
  } else {
    return a.id - b.id;
  }
}
function reversePainterSortStable(a, b) {
  if (a.groupOrder !== b.groupOrder) {
    return a.groupOrder - b.groupOrder;
  } else if (a.renderOrder !== b.renderOrder) {
    return a.renderOrder - b.renderOrder;
  } else if (a.z !== b.z) {
    return b.z - a.z;
  } else {
    return a.id - b.id;
  }
}
function WebGLRenderList() {
  const renderItems = [];
  let renderItemsIndex = 0;
  const opaque = [];
  const transmissive = [];
  const transparent = [];
  function init4() {
    renderItemsIndex = 0;
    opaque.length = 0;
    transmissive.length = 0;
    transparent.length = 0;
  }
  function getNextRenderItem(object, geometry, material, groupOrder, z, group) {
    let renderItem = renderItems[renderItemsIndex];
    if (renderItem === void 0) {
      renderItem = {
        id: object.id,
        object,
        geometry,
        material,
        groupOrder,
        renderOrder: object.renderOrder,
        z,
        group
      };
      renderItems[renderItemsIndex] = renderItem;
    } else {
      renderItem.id = object.id;
      renderItem.object = object;
      renderItem.geometry = geometry;
      renderItem.material = material;
      renderItem.groupOrder = groupOrder;
      renderItem.renderOrder = object.renderOrder;
      renderItem.z = z;
      renderItem.group = group;
    }
    renderItemsIndex++;
    return renderItem;
  }
  function push(object, geometry, material, groupOrder, z, group) {
    const renderItem = getNextRenderItem(object, geometry, material, groupOrder, z, group);
    if (material.transmission > 0) {
      transmissive.push(renderItem);
    } else if (material.transparent === true) {
      transparent.push(renderItem);
    } else {
      opaque.push(renderItem);
    }
  }
  function unshift(object, geometry, material, groupOrder, z, group) {
    const renderItem = getNextRenderItem(object, geometry, material, groupOrder, z, group);
    if (material.transmission > 0) {
      transmissive.unshift(renderItem);
    } else if (material.transparent === true) {
      transparent.unshift(renderItem);
    } else {
      opaque.unshift(renderItem);
    }
  }
  function sort(customOpaqueSort, customTransparentSort) {
    if (opaque.length > 1) opaque.sort(customOpaqueSort || painterSortStable);
    if (transmissive.length > 1) transmissive.sort(customTransparentSort || reversePainterSortStable);
    if (transparent.length > 1) transparent.sort(customTransparentSort || reversePainterSortStable);
  }
  function finish() {
    for (let i = renderItemsIndex, il = renderItems.length; i < il; i++) {
      const renderItem = renderItems[i];
      if (renderItem.id === null) break;
      renderItem.id = null;
      renderItem.object = null;
      renderItem.geometry = null;
      renderItem.material = null;
      renderItem.group = null;
    }
  }
  return {
    opaque,
    transmissive,
    transparent,
    init: init4,
    push,
    unshift,
    finish,
    sort
  };
}
function WebGLRenderLists() {
  let lists = /* @__PURE__ */ new WeakMap();
  function get(scene, renderCallDepth) {
    const listArray = lists.get(scene);
    let list;
    if (listArray === void 0) {
      list = new WebGLRenderList();
      lists.set(scene, [list]);
    } else {
      if (renderCallDepth >= listArray.length) {
        list = new WebGLRenderList();
        listArray.push(list);
      } else {
        list = listArray[renderCallDepth];
      }
    }
    return list;
  }
  function dispose() {
    lists = /* @__PURE__ */ new WeakMap();
  }
  return {
    get,
    dispose
  };
}
function UniformsCache() {
  const lights = {};
  return {
    get: function(light) {
      if (lights[light.id] !== void 0) {
        return lights[light.id];
      }
      let uniforms;
      switch (light.type) {
        case "DirectionalLight":
          uniforms = {
            direction: new Vector3(),
            color: new Color()
          };
          break;
        case "SpotLight":
          uniforms = {
            position: new Vector3(),
            direction: new Vector3(),
            color: new Color(),
            distance: 0,
            coneCos: 0,
            penumbraCos: 0,
            decay: 0
          };
          break;
        case "PointLight":
          uniforms = {
            position: new Vector3(),
            color: new Color(),
            distance: 0,
            decay: 0
          };
          break;
        case "HemisphereLight":
          uniforms = {
            direction: new Vector3(),
            skyColor: new Color(),
            groundColor: new Color()
          };
          break;
        case "RectAreaLight":
          uniforms = {
            color: new Color(),
            position: new Vector3(),
            halfWidth: new Vector3(),
            halfHeight: new Vector3()
          };
          break;
      }
      lights[light.id] = uniforms;
      return uniforms;
    }
  };
}
function ShadowUniformsCache() {
  const lights = {};
  return {
    get: function(light) {
      if (lights[light.id] !== void 0) {
        return lights[light.id];
      }
      let uniforms;
      switch (light.type) {
        case "DirectionalLight":
          uniforms = {
            shadowIntensity: 1,
            shadowBias: 0,
            shadowNormalBias: 0,
            shadowRadius: 1,
            shadowMapSize: new Vector2()
          };
          break;
        case "SpotLight":
          uniforms = {
            shadowIntensity: 1,
            shadowBias: 0,
            shadowNormalBias: 0,
            shadowRadius: 1,
            shadowMapSize: new Vector2()
          };
          break;
        case "PointLight":
          uniforms = {
            shadowIntensity: 1,
            shadowBias: 0,
            shadowNormalBias: 0,
            shadowRadius: 1,
            shadowMapSize: new Vector2(),
            shadowCameraNear: 1,
            shadowCameraFar: 1e3
          };
          break;
      }
      lights[light.id] = uniforms;
      return uniforms;
    }
  };
}
var nextVersion = 0;
function shadowCastingAndTexturingLightsFirst(lightA, lightB) {
  return (lightB.castShadow ? 2 : 0) - (lightA.castShadow ? 2 : 0) + (lightB.map ? 1 : 0) - (lightA.map ? 1 : 0);
}
function WebGLLights(extensions) {
  const cache = new UniformsCache();
  const shadowCache = ShadowUniformsCache();
  const state = {
    version: 0,
    hash: {
      directionalLength: -1,
      pointLength: -1,
      spotLength: -1,
      rectAreaLength: -1,
      hemiLength: -1,
      numDirectionalShadows: -1,
      numPointShadows: -1,
      numSpotShadows: -1,
      numSpotMaps: -1,
      numLightProbes: -1
    },
    ambient: [0, 0, 0],
    probe: [],
    directional: [],
    directionalShadow: [],
    directionalShadowMap: [],
    directionalShadowMatrix: [],
    spot: [],
    spotLightMap: [],
    spotShadow: [],
    spotShadowMap: [],
    spotLightMatrix: [],
    rectArea: [],
    rectAreaLTC1: null,
    rectAreaLTC2: null,
    point: [],
    pointShadow: [],
    pointShadowMap: [],
    pointShadowMatrix: [],
    hemi: [],
    numSpotLightShadowsWithMaps: 0,
    numLightProbes: 0
  };
  for (let i = 0; i < 9; i++) state.probe.push(new Vector3());
  const vector3 = new Vector3();
  const matrix4 = new Matrix4();
  const matrix42 = new Matrix4();
  function setup(lights) {
    let r = 0, g = 0, b = 0;
    for (let i = 0; i < 9; i++) state.probe[i].set(0, 0, 0);
    let directionalLength = 0;
    let pointLength = 0;
    let spotLength = 0;
    let rectAreaLength = 0;
    let hemiLength = 0;
    let numDirectionalShadows = 0;
    let numPointShadows = 0;
    let numSpotShadows = 0;
    let numSpotMaps = 0;
    let numSpotShadowsWithMaps = 0;
    let numLightProbes = 0;
    lights.sort(shadowCastingAndTexturingLightsFirst);
    for (let i = 0, l = lights.length; i < l; i++) {
      const light = lights[i];
      const color = light.color;
      const intensity = light.intensity;
      const distance = light.distance;
      const shadowMap = light.shadow && light.shadow.map ? light.shadow.map.texture : null;
      if (light.isAmbientLight) {
        r += color.r * intensity;
        g += color.g * intensity;
        b += color.b * intensity;
      } else if (light.isLightProbe) {
        for (let j = 0; j < 9; j++) {
          state.probe[j].addScaledVector(light.sh.coefficients[j], intensity);
        }
        numLightProbes++;
      } else if (light.isDirectionalLight) {
        const uniforms = cache.get(light);
        uniforms.color.copy(light.color).multiplyScalar(light.intensity);
        if (light.castShadow) {
          const shadow = light.shadow;
          const shadowUniforms = shadowCache.get(light);
          shadowUniforms.shadowIntensity = shadow.intensity;
          shadowUniforms.shadowBias = shadow.bias;
          shadowUniforms.shadowNormalBias = shadow.normalBias;
          shadowUniforms.shadowRadius = shadow.radius;
          shadowUniforms.shadowMapSize = shadow.mapSize;
          state.directionalShadow[directionalLength] = shadowUniforms;
          state.directionalShadowMap[directionalLength] = shadowMap;
          state.directionalShadowMatrix[directionalLength] = light.shadow.matrix;
          numDirectionalShadows++;
        }
        state.directional[directionalLength] = uniforms;
        directionalLength++;
      } else if (light.isSpotLight) {
        const uniforms = cache.get(light);
        uniforms.position.setFromMatrixPosition(light.matrixWorld);
        uniforms.color.copy(color).multiplyScalar(intensity);
        uniforms.distance = distance;
        uniforms.coneCos = Math.cos(light.angle);
        uniforms.penumbraCos = Math.cos(light.angle * (1 - light.penumbra));
        uniforms.decay = light.decay;
        state.spot[spotLength] = uniforms;
        const shadow = light.shadow;
        if (light.map) {
          state.spotLightMap[numSpotMaps] = light.map;
          numSpotMaps++;
          shadow.updateMatrices(light);
          if (light.castShadow) numSpotShadowsWithMaps++;
        }
        state.spotLightMatrix[spotLength] = shadow.matrix;
        if (light.castShadow) {
          const shadowUniforms = shadowCache.get(light);
          shadowUniforms.shadowIntensity = shadow.intensity;
          shadowUniforms.shadowBias = shadow.bias;
          shadowUniforms.shadowNormalBias = shadow.normalBias;
          shadowUniforms.shadowRadius = shadow.radius;
          shadowUniforms.shadowMapSize = shadow.mapSize;
          state.spotShadow[spotLength] = shadowUniforms;
          state.spotShadowMap[spotLength] = shadowMap;
          numSpotShadows++;
        }
        spotLength++;
      } else if (light.isRectAreaLight) {
        const uniforms = cache.get(light);
        uniforms.color.copy(color).multiplyScalar(intensity);
        uniforms.halfWidth.set(light.width * 0.5, 0, 0);
        uniforms.halfHeight.set(0, light.height * 0.5, 0);
        state.rectArea[rectAreaLength] = uniforms;
        rectAreaLength++;
      } else if (light.isPointLight) {
        const uniforms = cache.get(light);
        uniforms.color.copy(light.color).multiplyScalar(light.intensity);
        uniforms.distance = light.distance;
        uniforms.decay = light.decay;
        if (light.castShadow) {
          const shadow = light.shadow;
          const shadowUniforms = shadowCache.get(light);
          shadowUniforms.shadowIntensity = shadow.intensity;
          shadowUniforms.shadowBias = shadow.bias;
          shadowUniforms.shadowNormalBias = shadow.normalBias;
          shadowUniforms.shadowRadius = shadow.radius;
          shadowUniforms.shadowMapSize = shadow.mapSize;
          shadowUniforms.shadowCameraNear = shadow.camera.near;
          shadowUniforms.shadowCameraFar = shadow.camera.far;
          state.pointShadow[pointLength] = shadowUniforms;
          state.pointShadowMap[pointLength] = shadowMap;
          state.pointShadowMatrix[pointLength] = light.shadow.matrix;
          numPointShadows++;
        }
        state.point[pointLength] = uniforms;
        pointLength++;
      } else if (light.isHemisphereLight) {
        const uniforms = cache.get(light);
        uniforms.skyColor.copy(light.color).multiplyScalar(intensity);
        uniforms.groundColor.copy(light.groundColor).multiplyScalar(intensity);
        state.hemi[hemiLength] = uniforms;
        hemiLength++;
      }
    }
    if (rectAreaLength > 0) {
      if (extensions.has("OES_texture_float_linear") === true) {
        state.rectAreaLTC1 = UniformsLib.LTC_FLOAT_1;
        state.rectAreaLTC2 = UniformsLib.LTC_FLOAT_2;
      } else {
        state.rectAreaLTC1 = UniformsLib.LTC_HALF_1;
        state.rectAreaLTC2 = UniformsLib.LTC_HALF_2;
      }
    }
    state.ambient[0] = r;
    state.ambient[1] = g;
    state.ambient[2] = b;
    const hash = state.hash;
    if (hash.directionalLength !== directionalLength || hash.pointLength !== pointLength || hash.spotLength !== spotLength || hash.rectAreaLength !== rectAreaLength || hash.hemiLength !== hemiLength || hash.numDirectionalShadows !== numDirectionalShadows || hash.numPointShadows !== numPointShadows || hash.numSpotShadows !== numSpotShadows || hash.numSpotMaps !== numSpotMaps || hash.numLightProbes !== numLightProbes) {
      state.directional.length = directionalLength;
      state.spot.length = spotLength;
      state.rectArea.length = rectAreaLength;
      state.point.length = pointLength;
      state.hemi.length = hemiLength;
      state.directionalShadow.length = numDirectionalShadows;
      state.directionalShadowMap.length = numDirectionalShadows;
      state.pointShadow.length = numPointShadows;
      state.pointShadowMap.length = numPointShadows;
      state.spotShadow.length = numSpotShadows;
      state.spotShadowMap.length = numSpotShadows;
      state.directionalShadowMatrix.length = numDirectionalShadows;
      state.pointShadowMatrix.length = numPointShadows;
      state.spotLightMatrix.length = numSpotShadows + numSpotMaps - numSpotShadowsWithMaps;
      state.spotLightMap.length = numSpotMaps;
      state.numSpotLightShadowsWithMaps = numSpotShadowsWithMaps;
      state.numLightProbes = numLightProbes;
      hash.directionalLength = directionalLength;
      hash.pointLength = pointLength;
      hash.spotLength = spotLength;
      hash.rectAreaLength = rectAreaLength;
      hash.hemiLength = hemiLength;
      hash.numDirectionalShadows = numDirectionalShadows;
      hash.numPointShadows = numPointShadows;
      hash.numSpotShadows = numSpotShadows;
      hash.numSpotMaps = numSpotMaps;
      hash.numLightProbes = numLightProbes;
      state.version = nextVersion++;
    }
  }
  function setupView(lights, camera) {
    let directionalLength = 0;
    let pointLength = 0;
    let spotLength = 0;
    let rectAreaLength = 0;
    let hemiLength = 0;
    const viewMatrix = camera.matrixWorldInverse;
    for (let i = 0, l = lights.length; i < l; i++) {
      const light = lights[i];
      if (light.isDirectionalLight) {
        const uniforms = state.directional[directionalLength];
        uniforms.direction.setFromMatrixPosition(light.matrixWorld);
        vector3.setFromMatrixPosition(light.target.matrixWorld);
        uniforms.direction.sub(vector3);
        uniforms.direction.transformDirection(viewMatrix);
        directionalLength++;
      } else if (light.isSpotLight) {
        const uniforms = state.spot[spotLength];
        uniforms.position.setFromMatrixPosition(light.matrixWorld);
        uniforms.position.applyMatrix4(viewMatrix);
        uniforms.direction.setFromMatrixPosition(light.matrixWorld);
        vector3.setFromMatrixPosition(light.target.matrixWorld);
        uniforms.direction.sub(vector3);
        uniforms.direction.transformDirection(viewMatrix);
        spotLength++;
      } else if (light.isRectAreaLight) {
        const uniforms = state.rectArea[rectAreaLength];
        uniforms.position.setFromMatrixPosition(light.matrixWorld);
        uniforms.position.applyMatrix4(viewMatrix);
        matrix42.identity();
        matrix4.copy(light.matrixWorld);
        matrix4.premultiply(viewMatrix);
        matrix42.extractRotation(matrix4);
        uniforms.halfWidth.set(light.width * 0.5, 0, 0);
        uniforms.halfHeight.set(0, light.height * 0.5, 0);
        uniforms.halfWidth.applyMatrix4(matrix42);
        uniforms.halfHeight.applyMatrix4(matrix42);
        rectAreaLength++;
      } else if (light.isPointLight) {
        const uniforms = state.point[pointLength];
        uniforms.position.setFromMatrixPosition(light.matrixWorld);
        uniforms.position.applyMatrix4(viewMatrix);
        pointLength++;
      } else if (light.isHemisphereLight) {
        const uniforms = state.hemi[hemiLength];
        uniforms.direction.setFromMatrixPosition(light.matrixWorld);
        uniforms.direction.transformDirection(viewMatrix);
        hemiLength++;
      }
    }
  }
  return {
    setup,
    setupView,
    state
  };
}
function WebGLRenderState(extensions) {
  const lights = new WebGLLights(extensions);
  const lightsArray = [];
  const shadowsArray = [];
  function init4(camera) {
    state.camera = camera;
    lightsArray.length = 0;
    shadowsArray.length = 0;
  }
  function pushLight(light) {
    lightsArray.push(light);
  }
  function pushShadow(shadowLight) {
    shadowsArray.push(shadowLight);
  }
  function setupLights() {
    lights.setup(lightsArray);
  }
  function setupLightsView(camera) {
    lights.setupView(lightsArray, camera);
  }
  const state = {
    lightsArray,
    shadowsArray,
    camera: null,
    lights,
    transmissionRenderTarget: {}
  };
  return {
    init: init4,
    state,
    setupLights,
    setupLightsView,
    pushLight,
    pushShadow
  };
}
function WebGLRenderStates(extensions) {
  let renderStates = /* @__PURE__ */ new WeakMap();
  function get(scene, renderCallDepth = 0) {
    const renderStateArray = renderStates.get(scene);
    let renderState;
    if (renderStateArray === void 0) {
      renderState = new WebGLRenderState(extensions);
      renderStates.set(scene, [renderState]);
    } else {
      if (renderCallDepth >= renderStateArray.length) {
        renderState = new WebGLRenderState(extensions);
        renderStateArray.push(renderState);
      } else {
        renderState = renderStateArray[renderCallDepth];
      }
    }
    return renderState;
  }
  function dispose() {
    renderStates = /* @__PURE__ */ new WeakMap();
  }
  return {
    get,
    dispose
  };
}
var vertex = "void main() {\n	gl_Position = vec4( position, 1.0 );\n}";
var fragment = "uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n	const float samples = float( VSM_SAMPLES );\n	float mean = 0.0;\n	float squared_mean = 0.0;\n	float uvStride = samples <= 1.0 ? 0.0 : 2.0 / ( samples - 1.0 );\n	float uvStart = samples <= 1.0 ? 0.0 : - 1.0;\n	for ( float i = 0.0; i < samples; i ++ ) {\n		float uvOffset = uvStart + i * uvStride;\n		#ifdef HORIZONTAL_PASS\n			vec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( uvOffset, 0.0 ) * radius ) / resolution ) );\n			mean += distribution.x;\n			squared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n		#else\n			float depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, uvOffset ) * radius ) / resolution ) );\n			mean += depth;\n			squared_mean += depth * depth;\n		#endif\n	}\n	mean = mean / samples;\n	squared_mean = squared_mean / samples;\n	float std_dev = sqrt( squared_mean - mean * mean );\n	gl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";
function WebGLShadowMap(renderer, objects, capabilities) {
  let _frustum = new Frustum();
  const _shadowMapSize = new Vector2(), _viewportSize = new Vector2(), _viewport = new Vector4(), _depthMaterial = new MeshDepthMaterial({ depthPacking: RGBADepthPacking }), _distanceMaterial = new MeshDistanceMaterial(), _materialCache = {}, _maxTextureSize = capabilities.maxTextureSize;
  const shadowSide = { [FrontSide]: BackSide, [BackSide]: FrontSide, [DoubleSide]: DoubleSide };
  const shadowMaterialVertical = new ShaderMaterial({
    defines: {
      VSM_SAMPLES: 8
    },
    uniforms: {
      shadow_pass: { value: null },
      resolution: { value: new Vector2() },
      radius: { value: 4 }
    },
    vertexShader: vertex,
    fragmentShader: fragment
  });
  const shadowMaterialHorizontal = shadowMaterialVertical.clone();
  shadowMaterialHorizontal.defines.HORIZONTAL_PASS = 1;
  const fullScreenTri = new BufferGeometry();
  fullScreenTri.setAttribute(
    "position",
    new BufferAttribute(
      new Float32Array([-1, -1, 0.5, 3, -1, 0.5, -1, 3, 0.5]),
      3
    )
  );
  const fullScreenMesh = new Mesh(fullScreenTri, shadowMaterialVertical);
  const scope = this;
  this.enabled = false;
  this.autoUpdate = true;
  this.needsUpdate = false;
  this.type = PCFShadowMap;
  let _previousType = this.type;
  this.render = function(lights, scene, camera) {
    if (scope.enabled === false) return;
    if (scope.autoUpdate === false && scope.needsUpdate === false) return;
    if (lights.length === 0) return;
    const currentRenderTarget = renderer.getRenderTarget();
    const activeCubeFace = renderer.getActiveCubeFace();
    const activeMipmapLevel = renderer.getActiveMipmapLevel();
    const _state = renderer.state;
    _state.setBlending(NoBlending);
    _state.buffers.color.setClear(1, 1, 1, 1);
    _state.buffers.depth.setTest(true);
    _state.setScissorTest(false);
    const toVSM = _previousType !== VSMShadowMap && this.type === VSMShadowMap;
    const fromVSM = _previousType === VSMShadowMap && this.type !== VSMShadowMap;
    for (let i = 0, il = lights.length; i < il; i++) {
      const light = lights[i];
      const shadow = light.shadow;
      if (shadow === void 0) {
        console.warn("THREE.WebGLShadowMap:", light, "has no shadow.");
        continue;
      }
      if (shadow.autoUpdate === false && shadow.needsUpdate === false) continue;
      _shadowMapSize.copy(shadow.mapSize);
      const shadowFrameExtents = shadow.getFrameExtents();
      _shadowMapSize.multiply(shadowFrameExtents);
      _viewportSize.copy(shadow.mapSize);
      if (_shadowMapSize.x > _maxTextureSize || _shadowMapSize.y > _maxTextureSize) {
        if (_shadowMapSize.x > _maxTextureSize) {
          _viewportSize.x = Math.floor(_maxTextureSize / shadowFrameExtents.x);
          _shadowMapSize.x = _viewportSize.x * shadowFrameExtents.x;
          shadow.mapSize.x = _viewportSize.x;
        }
        if (_shadowMapSize.y > _maxTextureSize) {
          _viewportSize.y = Math.floor(_maxTextureSize / shadowFrameExtents.y);
          _shadowMapSize.y = _viewportSize.y * shadowFrameExtents.y;
          shadow.mapSize.y = _viewportSize.y;
        }
      }
      if (shadow.map === null || toVSM === true || fromVSM === true) {
        const pars = this.type !== VSMShadowMap ? { minFilter: NearestFilter, magFilter: NearestFilter } : {};
        if (shadow.map !== null) {
          shadow.map.dispose();
        }
        shadow.map = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y, pars);
        shadow.map.texture.name = light.name + ".shadowMap";
        shadow.camera.updateProjectionMatrix();
      }
      renderer.setRenderTarget(shadow.map);
      renderer.clear();
      const viewportCount = shadow.getViewportCount();
      for (let vp = 0; vp < viewportCount; vp++) {
        const viewport = shadow.getViewport(vp);
        _viewport.set(
          _viewportSize.x * viewport.x,
          _viewportSize.y * viewport.y,
          _viewportSize.x * viewport.z,
          _viewportSize.y * viewport.w
        );
        _state.viewport(_viewport);
        shadow.updateMatrices(light, vp);
        _frustum = shadow.getFrustum();
        renderObject(scene, camera, shadow.camera, light, this.type);
      }
      if (shadow.isPointLightShadow !== true && this.type === VSMShadowMap) {
        VSMPass(shadow, camera);
      }
      shadow.needsUpdate = false;
    }
    _previousType = this.type;
    scope.needsUpdate = false;
    renderer.setRenderTarget(currentRenderTarget, activeCubeFace, activeMipmapLevel);
  };
  function VSMPass(shadow, camera) {
    const geometry = objects.update(fullScreenMesh);
    if (shadowMaterialVertical.defines.VSM_SAMPLES !== shadow.blurSamples) {
      shadowMaterialVertical.defines.VSM_SAMPLES = shadow.blurSamples;
      shadowMaterialHorizontal.defines.VSM_SAMPLES = shadow.blurSamples;
      shadowMaterialVertical.needsUpdate = true;
      shadowMaterialHorizontal.needsUpdate = true;
    }
    if (shadow.mapPass === null) {
      shadow.mapPass = new WebGLRenderTarget(_shadowMapSize.x, _shadowMapSize.y);
    }
    shadowMaterialVertical.uniforms.shadow_pass.value = shadow.map.texture;
    shadowMaterialVertical.uniforms.resolution.value = shadow.mapSize;
    shadowMaterialVertical.uniforms.radius.value = shadow.radius;
    renderer.setRenderTarget(shadow.mapPass);
    renderer.clear();
    renderer.renderBufferDirect(camera, null, geometry, shadowMaterialVertical, fullScreenMesh, null);
    shadowMaterialHorizontal.uniforms.shadow_pass.value = shadow.mapPass.texture;
    shadowMaterialHorizontal.uniforms.resolution.value = shadow.mapSize;
    shadowMaterialHorizontal.uniforms.radius.value = shadow.radius;
    renderer.setRenderTarget(shadow.map);
    renderer.clear();
    renderer.renderBufferDirect(camera, null, geometry, shadowMaterialHorizontal, fullScreenMesh, null);
  }
  function getDepthMaterial(object, material, light, type) {
    let result = null;
    const customMaterial = light.isPointLight === true ? object.customDistanceMaterial : object.customDepthMaterial;
    if (customMaterial !== void 0) {
      result = customMaterial;
    } else {
      result = light.isPointLight === true ? _distanceMaterial : _depthMaterial;
      if (renderer.localClippingEnabled && material.clipShadows === true && Array.isArray(material.clippingPlanes) && material.clippingPlanes.length !== 0 || material.displacementMap && material.displacementScale !== 0 || material.alphaMap && material.alphaTest > 0 || material.map && material.alphaTest > 0) {
        const keyA = result.uuid, keyB = material.uuid;
        let materialsForVariant = _materialCache[keyA];
        if (materialsForVariant === void 0) {
          materialsForVariant = {};
          _materialCache[keyA] = materialsForVariant;
        }
        let cachedMaterial = materialsForVariant[keyB];
        if (cachedMaterial === void 0) {
          cachedMaterial = result.clone();
          materialsForVariant[keyB] = cachedMaterial;
          material.addEventListener("dispose", onMaterialDispose);
        }
        result = cachedMaterial;
      }
    }
    result.visible = material.visible;
    result.wireframe = material.wireframe;
    if (type === VSMShadowMap) {
      result.side = material.shadowSide !== null ? material.shadowSide : material.side;
    } else {
      result.side = material.shadowSide !== null ? material.shadowSide : shadowSide[material.side];
    }
    result.alphaMap = material.alphaMap;
    result.alphaTest = material.alphaTest;
    result.map = material.map;
    result.clipShadows = material.clipShadows;
    result.clippingPlanes = material.clippingPlanes;
    result.clipIntersection = material.clipIntersection;
    result.displacementMap = material.displacementMap;
    result.displacementScale = material.displacementScale;
    result.displacementBias = material.displacementBias;
    result.wireframeLinewidth = material.wireframeLinewidth;
    result.linewidth = material.linewidth;
    if (light.isPointLight === true && result.isMeshDistanceMaterial === true) {
      const materialProperties = renderer.properties.get(result);
      materialProperties.light = light;
    }
    return result;
  }
  function renderObject(object, camera, shadowCamera, light, type) {
    if (object.visible === false) return;
    const visible = object.layers.test(camera.layers);
    if (visible && (object.isMesh || object.isLine || object.isPoints)) {
      if ((object.castShadow || object.receiveShadow && type === VSMShadowMap) && (!object.frustumCulled || _frustum.intersectsObject(object))) {
        object.modelViewMatrix.multiplyMatrices(shadowCamera.matrixWorldInverse, object.matrixWorld);
        const geometry = objects.update(object);
        const material = object.material;
        if (Array.isArray(material)) {
          const groups = geometry.groups;
          for (let k = 0, kl = groups.length; k < kl; k++) {
            const group = groups[k];
            const groupMaterial = material[group.materialIndex];
            if (groupMaterial && groupMaterial.visible) {
              const depthMaterial = getDepthMaterial(object, groupMaterial, light, type);
              object.onBeforeShadow(renderer, object, camera, shadowCamera, geometry, depthMaterial, group);
              renderer.renderBufferDirect(shadowCamera, null, geometry, depthMaterial, object, group);
              object.onAfterShadow(renderer, object, camera, shadowCamera, geometry, depthMaterial, group);
            }
          }
        } else if (material.visible) {
          const depthMaterial = getDepthMaterial(object, material, light, type);
          object.onBeforeShadow(renderer, object, camera, shadowCamera, geometry, depthMaterial, null);
          renderer.renderBufferDirect(shadowCamera, null, geometry, depthMaterial, object, null);
          object.onAfterShadow(renderer, object, camera, shadowCamera, geometry, depthMaterial, null);
        }
      }
    }
    const children = object.children;
    for (let i = 0, l = children.length; i < l; i++) {
      renderObject(children[i], camera, shadowCamera, light, type);
    }
  }
  function onMaterialDispose(event) {
    const material = event.target;
    material.removeEventListener("dispose", onMaterialDispose);
    for (const id in _materialCache) {
      const cache = _materialCache[id];
      const uuid = event.target.uuid;
      if (uuid in cache) {
        const shadowMaterial = cache[uuid];
        shadowMaterial.dispose();
        delete cache[uuid];
      }
    }
  }
}
var reversedFuncs = {
  [NeverDepth]: AlwaysDepth,
  [LessDepth]: GreaterDepth,
  [EqualDepth]: NotEqualDepth,
  [LessEqualDepth]: GreaterEqualDepth,
  [AlwaysDepth]: NeverDepth,
  [GreaterDepth]: LessDepth,
  [NotEqualDepth]: EqualDepth,
  [GreaterEqualDepth]: LessEqualDepth
};
function WebGLState(gl, extensions) {
  function ColorBuffer() {
    let locked = false;
    const color = new Vector4();
    let currentColorMask = null;
    const currentColorClear = new Vector4(0, 0, 0, 0);
    return {
      setMask: function(colorMask) {
        if (currentColorMask !== colorMask && !locked) {
          gl.colorMask(colorMask, colorMask, colorMask, colorMask);
          currentColorMask = colorMask;
        }
      },
      setLocked: function(lock) {
        locked = lock;
      },
      setClear: function(r, g, b, a, premultipliedAlpha) {
        if (premultipliedAlpha === true) {
          r *= a;
          g *= a;
          b *= a;
        }
        color.set(r, g, b, a);
        if (currentColorClear.equals(color) === false) {
          gl.clearColor(r, g, b, a);
          currentColorClear.copy(color);
        }
      },
      reset: function() {
        locked = false;
        currentColorMask = null;
        currentColorClear.set(-1, 0, 0, 0);
      }
    };
  }
  function DepthBuffer() {
    let locked = false;
    let reversed = false;
    let currentDepthMask = null;
    let currentDepthFunc = null;
    let currentDepthClear = null;
    return {
      setReversed: function(value) {
        if (reversed !== value) {
          const ext = extensions.get("EXT_clip_control");
          if (reversed) {
            ext.clipControlEXT(ext.LOWER_LEFT_EXT, ext.ZERO_TO_ONE_EXT);
          } else {
            ext.clipControlEXT(ext.LOWER_LEFT_EXT, ext.NEGATIVE_ONE_TO_ONE_EXT);
          }
          const oldDepth = currentDepthClear;
          currentDepthClear = null;
          this.setClear(oldDepth);
        }
        reversed = value;
      },
      getReversed: function() {
        return reversed;
      },
      setTest: function(depthTest) {
        if (depthTest) {
          enable(gl.DEPTH_TEST);
        } else {
          disable(gl.DEPTH_TEST);
        }
      },
      setMask: function(depthMask) {
        if (currentDepthMask !== depthMask && !locked) {
          gl.depthMask(depthMask);
          currentDepthMask = depthMask;
        }
      },
      setFunc: function(depthFunc) {
        if (reversed) depthFunc = reversedFuncs[depthFunc];
        if (currentDepthFunc !== depthFunc) {
          switch (depthFunc) {
            case NeverDepth:
              gl.depthFunc(gl.NEVER);
              break;
            case AlwaysDepth:
              gl.depthFunc(gl.ALWAYS);
              break;
            case LessDepth:
              gl.depthFunc(gl.LESS);
              break;
            case LessEqualDepth:
              gl.depthFunc(gl.LEQUAL);
              break;
            case EqualDepth:
              gl.depthFunc(gl.EQUAL);
              break;
            case GreaterEqualDepth:
              gl.depthFunc(gl.GEQUAL);
              break;
            case GreaterDepth:
              gl.depthFunc(gl.GREATER);
              break;
            case NotEqualDepth:
              gl.depthFunc(gl.NOTEQUAL);
              break;
            default:
              gl.depthFunc(gl.LEQUAL);
          }
          currentDepthFunc = depthFunc;
        }
      },
      setLocked: function(lock) {
        locked = lock;
      },
      setClear: function(depth) {
        if (currentDepthClear !== depth) {
          if (reversed) {
            depth = 1 - depth;
          }
          gl.clearDepth(depth);
          currentDepthClear = depth;
        }
      },
      reset: function() {
        locked = false;
        currentDepthMask = null;
        currentDepthFunc = null;
        currentDepthClear = null;
        reversed = false;
      }
    };
  }
  function StencilBuffer() {
    let locked = false;
    let currentStencilMask = null;
    let currentStencilFunc = null;
    let currentStencilRef = null;
    let currentStencilFuncMask = null;
    let currentStencilFail = null;
    let currentStencilZFail = null;
    let currentStencilZPass = null;
    let currentStencilClear = null;
    return {
      setTest: function(stencilTest) {
        if (!locked) {
          if (stencilTest) {
            enable(gl.STENCIL_TEST);
          } else {
            disable(gl.STENCIL_TEST);
          }
        }
      },
      setMask: function(stencilMask) {
        if (currentStencilMask !== stencilMask && !locked) {
          gl.stencilMask(stencilMask);
          currentStencilMask = stencilMask;
        }
      },
      setFunc: function(stencilFunc, stencilRef, stencilMask) {
        if (currentStencilFunc !== stencilFunc || currentStencilRef !== stencilRef || currentStencilFuncMask !== stencilMask) {
          gl.stencilFunc(stencilFunc, stencilRef, stencilMask);
          currentStencilFunc = stencilFunc;
          currentStencilRef = stencilRef;
          currentStencilFuncMask = stencilMask;
        }
      },
      setOp: function(stencilFail, stencilZFail, stencilZPass) {
        if (currentStencilFail !== stencilFail || currentStencilZFail !== stencilZFail || currentStencilZPass !== stencilZPass) {
          gl.stencilOp(stencilFail, stencilZFail, stencilZPass);
          currentStencilFail = stencilFail;
          currentStencilZFail = stencilZFail;
          currentStencilZPass = stencilZPass;
        }
      },
      setLocked: function(lock) {
        locked = lock;
      },
      setClear: function(stencil) {
        if (currentStencilClear !== stencil) {
          gl.clearStencil(stencil);
          currentStencilClear = stencil;
        }
      },
      reset: function() {
        locked = false;
        currentStencilMask = null;
        currentStencilFunc = null;
        currentStencilRef = null;
        currentStencilFuncMask = null;
        currentStencilFail = null;
        currentStencilZFail = null;
        currentStencilZPass = null;
        currentStencilClear = null;
      }
    };
  }
  const colorBuffer = new ColorBuffer();
  const depthBuffer = new DepthBuffer();
  const stencilBuffer = new StencilBuffer();
  const uboBindings = /* @__PURE__ */ new WeakMap();
  const uboProgramMap = /* @__PURE__ */ new WeakMap();
  let enabledCapabilities = {};
  let currentBoundFramebuffers = {};
  let currentDrawbuffers = /* @__PURE__ */ new WeakMap();
  let defaultDrawbuffers = [];
  let currentProgram = null;
  let currentBlendingEnabled = false;
  let currentBlending = null;
  let currentBlendEquation = null;
  let currentBlendSrc = null;
  let currentBlendDst = null;
  let currentBlendEquationAlpha = null;
  let currentBlendSrcAlpha = null;
  let currentBlendDstAlpha = null;
  let currentBlendColor = new Color(0, 0, 0);
  let currentBlendAlpha = 0;
  let currentPremultipledAlpha = false;
  let currentFlipSided = null;
  let currentCullFace = null;
  let currentLineWidth = null;
  let currentPolygonOffsetFactor = null;
  let currentPolygonOffsetUnits = null;
  const maxTextures = gl.getParameter(gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS);
  let lineWidthAvailable = false;
  let version = 0;
  const glVersion = gl.getParameter(gl.VERSION);
  if (glVersion.indexOf("WebGL") !== -1) {
    version = parseFloat(/^WebGL (\d)/.exec(glVersion)[1]);
    lineWidthAvailable = version >= 1;
  } else if (glVersion.indexOf("OpenGL ES") !== -1) {
    version = parseFloat(/^OpenGL ES (\d)/.exec(glVersion)[1]);
    lineWidthAvailable = version >= 2;
  }
  let currentTextureSlot = null;
  let currentBoundTextures = {};
  const scissorParam = gl.getParameter(gl.SCISSOR_BOX);
  const viewportParam = gl.getParameter(gl.VIEWPORT);
  const currentScissor = new Vector4().fromArray(scissorParam);
  const currentViewport = new Vector4().fromArray(viewportParam);
  function createTexture(type, target, count, dimensions) {
    const data = new Uint8Array(4);
    const texture = gl.createTexture();
    gl.bindTexture(type, texture);
    gl.texParameteri(type, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(type, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    for (let i = 0; i < count; i++) {
      if (type === gl.TEXTURE_3D || type === gl.TEXTURE_2D_ARRAY) {
        gl.texImage3D(target, 0, gl.RGBA, 1, 1, dimensions, 0, gl.RGBA, gl.UNSIGNED_BYTE, data);
      } else {
        gl.texImage2D(target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data);
      }
    }
    return texture;
  }
  const emptyTextures = {};
  emptyTextures[gl.TEXTURE_2D] = createTexture(gl.TEXTURE_2D, gl.TEXTURE_2D, 1);
  emptyTextures[gl.TEXTURE_CUBE_MAP] = createTexture(gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6);
  emptyTextures[gl.TEXTURE_2D_ARRAY] = createTexture(gl.TEXTURE_2D_ARRAY, gl.TEXTURE_2D_ARRAY, 1, 1);
  emptyTextures[gl.TEXTURE_3D] = createTexture(gl.TEXTURE_3D, gl.TEXTURE_3D, 1, 1);
  colorBuffer.setClear(0, 0, 0, 1);
  depthBuffer.setClear(1);
  stencilBuffer.setClear(0);
  enable(gl.DEPTH_TEST);
  depthBuffer.setFunc(LessEqualDepth);
  setFlipSided(false);
  setCullFace(CullFaceBack);
  enable(gl.CULL_FACE);
  setBlending(NoBlending);
  function enable(id) {
    if (enabledCapabilities[id] !== true) {
      gl.enable(id);
      enabledCapabilities[id] = true;
    }
  }
  function disable(id) {
    if (enabledCapabilities[id] !== false) {
      gl.disable(id);
      enabledCapabilities[id] = false;
    }
  }
  function bindFramebuffer(target, framebuffer) {
    if (currentBoundFramebuffers[target] !== framebuffer) {
      gl.bindFramebuffer(target, framebuffer);
      currentBoundFramebuffers[target] = framebuffer;
      if (target === gl.DRAW_FRAMEBUFFER) {
        currentBoundFramebuffers[gl.FRAMEBUFFER] = framebuffer;
      }
      if (target === gl.FRAMEBUFFER) {
        currentBoundFramebuffers[gl.DRAW_FRAMEBUFFER] = framebuffer;
      }
      return true;
    }
    return false;
  }
  function drawBuffers(renderTarget, framebuffer) {
    let drawBuffers2 = defaultDrawbuffers;
    let needsUpdate = false;
    if (renderTarget) {
      drawBuffers2 = currentDrawbuffers.get(framebuffer);
      if (drawBuffers2 === void 0) {
        drawBuffers2 = [];
        currentDrawbuffers.set(framebuffer, drawBuffers2);
      }
      const textures = renderTarget.textures;
      if (drawBuffers2.length !== textures.length || drawBuffers2[0] !== gl.COLOR_ATTACHMENT0) {
        for (let i = 0, il = textures.length; i < il; i++) {
          drawBuffers2[i] = gl.COLOR_ATTACHMENT0 + i;
        }
        drawBuffers2.length = textures.length;
        needsUpdate = true;
      }
    } else {
      if (drawBuffers2[0] !== gl.BACK) {
        drawBuffers2[0] = gl.BACK;
        needsUpdate = true;
      }
    }
    if (needsUpdate) {
      gl.drawBuffers(drawBuffers2);
    }
  }
  function useProgram(program) {
    if (currentProgram !== program) {
      gl.useProgram(program);
      currentProgram = program;
      return true;
    }
    return false;
  }
  const equationToGL = {
    [AddEquation]: gl.FUNC_ADD,
    [SubtractEquation]: gl.FUNC_SUBTRACT,
    [ReverseSubtractEquation]: gl.FUNC_REVERSE_SUBTRACT
  };
  equationToGL[MinEquation] = gl.MIN;
  equationToGL[MaxEquation] = gl.MAX;
  const factorToGL = {
    [ZeroFactor]: gl.ZERO,
    [OneFactor]: gl.ONE,
    [SrcColorFactor]: gl.SRC_COLOR,
    [SrcAlphaFactor]: gl.SRC_ALPHA,
    [SrcAlphaSaturateFactor]: gl.SRC_ALPHA_SATURATE,
    [DstColorFactor]: gl.DST_COLOR,
    [DstAlphaFactor]: gl.DST_ALPHA,
    [OneMinusSrcColorFactor]: gl.ONE_MINUS_SRC_COLOR,
    [OneMinusSrcAlphaFactor]: gl.ONE_MINUS_SRC_ALPHA,
    [OneMinusDstColorFactor]: gl.ONE_MINUS_DST_COLOR,
    [OneMinusDstAlphaFactor]: gl.ONE_MINUS_DST_ALPHA,
    [ConstantColorFactor]: gl.CONSTANT_COLOR,
    [OneMinusConstantColorFactor]: gl.ONE_MINUS_CONSTANT_COLOR,
    [ConstantAlphaFactor]: gl.CONSTANT_ALPHA,
    [OneMinusConstantAlphaFactor]: gl.ONE_MINUS_CONSTANT_ALPHA
  };
  function setBlending(blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, blendColor, blendAlpha, premultipliedAlpha) {
    if (blending === NoBlending) {
      if (currentBlendingEnabled === true) {
        disable(gl.BLEND);
        currentBlendingEnabled = false;
      }
      return;
    }
    if (currentBlendingEnabled === false) {
      enable(gl.BLEND);
      currentBlendingEnabled = true;
    }
    if (blending !== CustomBlending) {
      if (blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha) {
        if (currentBlendEquation !== AddEquation || currentBlendEquationAlpha !== AddEquation) {
          gl.blendEquation(gl.FUNC_ADD);
          currentBlendEquation = AddEquation;
          currentBlendEquationAlpha = AddEquation;
        }
        if (premultipliedAlpha) {
          switch (blending) {
            case NormalBlending:
              gl.blendFuncSeparate(gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
              break;
            case AdditiveBlending:
              gl.blendFunc(gl.ONE, gl.ONE);
              break;
            case SubtractiveBlending:
              gl.blendFuncSeparate(gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ZERO, gl.ONE);
              break;
            case MultiplyBlending:
              gl.blendFuncSeparate(gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA);
              break;
            default:
              console.error("THREE.WebGLState: Invalid blending: ", blending);
              break;
          }
        } else {
          switch (blending) {
            case NormalBlending:
              gl.blendFuncSeparate(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
              break;
            case AdditiveBlending:
              gl.blendFunc(gl.SRC_ALPHA, gl.ONE);
              break;
            case SubtractiveBlending:
              gl.blendFuncSeparate(gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ZERO, gl.ONE);
              break;
            case MultiplyBlending:
              gl.blendFunc(gl.ZERO, gl.SRC_COLOR);
              break;
            default:
              console.error("THREE.WebGLState: Invalid blending: ", blending);
              break;
          }
        }
        currentBlendSrc = null;
        currentBlendDst = null;
        currentBlendSrcAlpha = null;
        currentBlendDstAlpha = null;
        currentBlendColor.set(0, 0, 0);
        currentBlendAlpha = 0;
        currentBlending = blending;
        currentPremultipledAlpha = premultipliedAlpha;
      }
      return;
    }
    blendEquationAlpha = blendEquationAlpha || blendEquation;
    blendSrcAlpha = blendSrcAlpha || blendSrc;
    blendDstAlpha = blendDstAlpha || blendDst;
    if (blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha) {
      gl.blendEquationSeparate(equationToGL[blendEquation], equationToGL[blendEquationAlpha]);
      currentBlendEquation = blendEquation;
      currentBlendEquationAlpha = blendEquationAlpha;
    }
    if (blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha) {
      gl.blendFuncSeparate(factorToGL[blendSrc], factorToGL[blendDst], factorToGL[blendSrcAlpha], factorToGL[blendDstAlpha]);
      currentBlendSrc = blendSrc;
      currentBlendDst = blendDst;
      currentBlendSrcAlpha = blendSrcAlpha;
      currentBlendDstAlpha = blendDstAlpha;
    }
    if (blendColor.equals(currentBlendColor) === false || blendAlpha !== currentBlendAlpha) {
      gl.blendColor(blendColor.r, blendColor.g, blendColor.b, blendAlpha);
      currentBlendColor.copy(blendColor);
      currentBlendAlpha = blendAlpha;
    }
    currentBlending = blending;
    currentPremultipledAlpha = false;
  }
  function setMaterial(material, frontFaceCW) {
    material.side === DoubleSide ? disable(gl.CULL_FACE) : enable(gl.CULL_FACE);
    let flipSided = material.side === BackSide;
    if (frontFaceCW) flipSided = !flipSided;
    setFlipSided(flipSided);
    material.blending === NormalBlending && material.transparent === false ? setBlending(NoBlending) : setBlending(material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.blendColor, material.blendAlpha, material.premultipliedAlpha);
    depthBuffer.setFunc(material.depthFunc);
    depthBuffer.setTest(material.depthTest);
    depthBuffer.setMask(material.depthWrite);
    colorBuffer.setMask(material.colorWrite);
    const stencilWrite = material.stencilWrite;
    stencilBuffer.setTest(stencilWrite);
    if (stencilWrite) {
      stencilBuffer.setMask(material.stencilWriteMask);
      stencilBuffer.setFunc(material.stencilFunc, material.stencilRef, material.stencilFuncMask);
      stencilBuffer.setOp(material.stencilFail, material.stencilZFail, material.stencilZPass);
    }
    setPolygonOffset(material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits);
    material.alphaToCoverage === true ? enable(gl.SAMPLE_ALPHA_TO_COVERAGE) : disable(gl.SAMPLE_ALPHA_TO_COVERAGE);
  }
  function setFlipSided(flipSided) {
    if (currentFlipSided !== flipSided) {
      if (flipSided) {
        gl.frontFace(gl.CW);
      } else {
        gl.frontFace(gl.CCW);
      }
      currentFlipSided = flipSided;
    }
  }
  function setCullFace(cullFace) {
    if (cullFace !== CullFaceNone) {
      enable(gl.CULL_FACE);
      if (cullFace !== currentCullFace) {
        if (cullFace === CullFaceBack) {
          gl.cullFace(gl.BACK);
        } else if (cullFace === CullFaceFront) {
          gl.cullFace(gl.FRONT);
        } else {
          gl.cullFace(gl.FRONT_AND_BACK);
        }
      }
    } else {
      disable(gl.CULL_FACE);
    }
    currentCullFace = cullFace;
  }
  function setLineWidth(width) {
    if (width !== currentLineWidth) {
      if (lineWidthAvailable) gl.lineWidth(width);
      currentLineWidth = width;
    }
  }
  function setPolygonOffset(polygonOffset, factor, units) {
    if (polygonOffset) {
      enable(gl.POLYGON_OFFSET_FILL);
      if (currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units) {
        gl.polygonOffset(factor, units);
        currentPolygonOffsetFactor = factor;
        currentPolygonOffsetUnits = units;
      }
    } else {
      disable(gl.POLYGON_OFFSET_FILL);
    }
  }
  function setScissorTest(scissorTest) {
    if (scissorTest) {
      enable(gl.SCISSOR_TEST);
    } else {
      disable(gl.SCISSOR_TEST);
    }
  }
  function activeTexture(webglSlot) {
    if (webglSlot === void 0) webglSlot = gl.TEXTURE0 + maxTextures - 1;
    if (currentTextureSlot !== webglSlot) {
      gl.activeTexture(webglSlot);
      currentTextureSlot = webglSlot;
    }
  }
  function bindTexture(webglType, webglTexture, webglSlot) {
    if (webglSlot === void 0) {
      if (currentTextureSlot === null) {
        webglSlot = gl.TEXTURE0 + maxTextures - 1;
      } else {
        webglSlot = currentTextureSlot;
      }
    }
    let boundTexture = currentBoundTextures[webglSlot];
    if (boundTexture === void 0) {
      boundTexture = { type: void 0, texture: void 0 };
      currentBoundTextures[webglSlot] = boundTexture;
    }
    if (boundTexture.type !== webglType || boundTexture.texture !== webglTexture) {
      if (currentTextureSlot !== webglSlot) {
        gl.activeTexture(webglSlot);
        currentTextureSlot = webglSlot;
      }
      gl.bindTexture(webglType, webglTexture || emptyTextures[webglType]);
      boundTexture.type = webglType;
      boundTexture.texture = webglTexture;
    }
  }
  function unbindTexture() {
    const boundTexture = currentBoundTextures[currentTextureSlot];
    if (boundTexture !== void 0 && boundTexture.type !== void 0) {
      gl.bindTexture(boundTexture.type, null);
      boundTexture.type = void 0;
      boundTexture.texture = void 0;
    }
  }
  function compressedTexImage2D() {
    try {
      gl.compressedTexImage2D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function compressedTexImage3D() {
    try {
      gl.compressedTexImage3D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function texSubImage2D() {
    try {
      gl.texSubImage2D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function texSubImage3D() {
    try {
      gl.texSubImage3D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function compressedTexSubImage2D() {
    try {
      gl.compressedTexSubImage2D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function compressedTexSubImage3D() {
    try {
      gl.compressedTexSubImage3D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function texStorage2D() {
    try {
      gl.texStorage2D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function texStorage3D() {
    try {
      gl.texStorage3D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function texImage2D() {
    try {
      gl.texImage2D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function texImage3D() {
    try {
      gl.texImage3D.apply(gl, arguments);
    } catch (error) {
      console.error("THREE.WebGLState:", error);
    }
  }
  function scissor(scissor2) {
    if (currentScissor.equals(scissor2) === false) {
      gl.scissor(scissor2.x, scissor2.y, scissor2.z, scissor2.w);
      currentScissor.copy(scissor2);
    }
  }
  function viewport(viewport2) {
    if (currentViewport.equals(viewport2) === false) {
      gl.viewport(viewport2.x, viewport2.y, viewport2.z, viewport2.w);
      currentViewport.copy(viewport2);
    }
  }
  function updateUBOMapping(uniformsGroup, program) {
    let mapping = uboProgramMap.get(program);
    if (mapping === void 0) {
      mapping = /* @__PURE__ */ new WeakMap();
      uboProgramMap.set(program, mapping);
    }
    let blockIndex = mapping.get(uniformsGroup);
    if (blockIndex === void 0) {
      blockIndex = gl.getUniformBlockIndex(program, uniformsGroup.name);
      mapping.set(uniformsGroup, blockIndex);
    }
  }
  function uniformBlockBinding(uniformsGroup, program) {
    const mapping = uboProgramMap.get(program);
    const blockIndex = mapping.get(uniformsGroup);
    if (uboBindings.get(program) !== blockIndex) {
      gl.uniformBlockBinding(program, blockIndex, uniformsGroup.__bindingPointIndex);
      uboBindings.set(program, blockIndex);
    }
  }
  function reset() {
    gl.disable(gl.BLEND);
    gl.disable(gl.CULL_FACE);
    gl.disable(gl.DEPTH_TEST);
    gl.disable(gl.POLYGON_OFFSET_FILL);
    gl.disable(gl.SCISSOR_TEST);
    gl.disable(gl.STENCIL_TEST);
    gl.disable(gl.SAMPLE_ALPHA_TO_COVERAGE);
    gl.blendEquation(gl.FUNC_ADD);
    gl.blendFunc(gl.ONE, gl.ZERO);
    gl.blendFuncSeparate(gl.ONE, gl.ZERO, gl.ONE, gl.ZERO);
    gl.blendColor(0, 0, 0, 0);
    gl.colorMask(true, true, true, true);
    gl.clearColor(0, 0, 0, 0);
    gl.depthMask(true);
    gl.depthFunc(gl.LESS);
    depthBuffer.setReversed(false);
    gl.clearDepth(1);
    gl.stencilMask(4294967295);
    gl.stencilFunc(gl.ALWAYS, 0, 4294967295);
    gl.stencilOp(gl.KEEP, gl.KEEP, gl.KEEP);
    gl.clearStencil(0);
    gl.cullFace(gl.BACK);
    gl.frontFace(gl.CCW);
    gl.polygonOffset(0, 0);
    gl.activeTexture(gl.TEXTURE0);
    gl.bindFramebuffer(gl.FRAMEBUFFER, null);
    gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, null);
    gl.bindFramebuffer(gl.READ_FRAMEBUFFER, null);
    gl.useProgram(null);
    gl.lineWidth(1);
    gl.scissor(0, 0, gl.canvas.width, gl.canvas.height);
    gl.viewport(0, 0, gl.canvas.width, gl.canvas.height);
    enabledCapabilities = {};
    currentTextureSlot = null;
    currentBoundTextures = {};
    currentBoundFramebuffers = {};
    currentDrawbuffers = /* @__PURE__ */ new WeakMap();
    defaultDrawbuffers = [];
    currentProgram = null;
    currentBlendingEnabled = false;
    currentBlending = null;
    currentBlendEquation = null;
    currentBlendSrc = null;
    currentBlendDst = null;
    currentBlendEquationAlpha = null;
    currentBlendSrcAlpha = null;
    currentBlendDstAlpha = null;
    currentBlendColor = new Color(0, 0, 0);
    currentBlendAlpha = 0;
    currentPremultipledAlpha = false;
    currentFlipSided = null;
    currentCullFace = null;
    currentLineWidth = null;
    currentPolygonOffsetFactor = null;
    currentPolygonOffsetUnits = null;
    currentScissor.set(0, 0, gl.canvas.width, gl.canvas.height);
    currentViewport.set(0, 0, gl.canvas.width, gl.canvas.height);
    colorBuffer.reset();
    depthBuffer.reset();
    stencilBuffer.reset();
  }
  return {
    buffers: {
      color: colorBuffer,
      depth: depthBuffer,
      stencil: stencilBuffer
    },
    enable,
    disable,
    bindFramebuffer,
    drawBuffers,
    useProgram,
    setBlending,
    setMaterial,
    setFlipSided,
    setCullFace,
    setLineWidth,
    setPolygonOffset,
    setScissorTest,
    activeTexture,
    bindTexture,
    unbindTexture,
    compressedTexImage2D,
    compressedTexImage3D,
    texImage2D,
    texImage3D,
    updateUBOMapping,
    uniformBlockBinding,
    texStorage2D,
    texStorage3D,
    texSubImage2D,
    texSubImage3D,
    compressedTexSubImage2D,
    compressedTexSubImage3D,
    scissor,
    viewport,
    reset
  };
}
function WebGLTextures(_gl, extensions, state, properties, capabilities, utils, info) {
  const multisampledRTTExt = extensions.has("WEBGL_multisampled_render_to_texture") ? extensions.get("WEBGL_multisampled_render_to_texture") : null;
  const supportsInvalidateFramebuffer = typeof navigator === "undefined" ? false : /OculusBrowser/g.test(navigator.userAgent);
  const _imageDimensions = new Vector2();
  const _videoTextures = /* @__PURE__ */ new WeakMap();
  let _canvas2;
  const _sources = /* @__PURE__ */ new WeakMap();
  let useOffscreenCanvas = false;
  try {
    useOffscreenCanvas = typeof OffscreenCanvas !== "undefined" && new OffscreenCanvas(1, 1).getContext("2d") !== null;
  } catch (err) {
  }
  function createCanvas(width, height) {
    return useOffscreenCanvas ? (
      // eslint-disable-next-line compat/compat
      new OffscreenCanvas(width, height)
    ) : createElementNS("canvas");
  }
  function resizeImage(image, needsNewCanvas, maxSize) {
    let scale = 1;
    const dimensions = getDimensions(image);
    if (dimensions.width > maxSize || dimensions.height > maxSize) {
      scale = maxSize / Math.max(dimensions.width, dimensions.height);
    }
    if (scale < 1) {
      if (typeof HTMLImageElement !== "undefined" && image instanceof HTMLImageElement || typeof HTMLCanvasElement !== "undefined" && image instanceof HTMLCanvasElement || typeof ImageBitmap !== "undefined" && image instanceof ImageBitmap || typeof VideoFrame !== "undefined" && image instanceof VideoFrame) {
        const width = Math.floor(scale * dimensions.width);
        const height = Math.floor(scale * dimensions.height);
        if (_canvas2 === void 0) _canvas2 = createCanvas(width, height);
        const canvas = needsNewCanvas ? createCanvas(width, height) : _canvas2;
        canvas.width = width;
        canvas.height = height;
        const context3 = canvas.getContext("2d");
        context3.drawImage(image, 0, 0, width, height);
        console.warn("THREE.WebGLRenderer: Texture has been resized from (" + dimensions.width + "x" + dimensions.height + ") to (" + width + "x" + height + ").");
        return canvas;
      } else {
        if ("data" in image) {
          console.warn("THREE.WebGLRenderer: Image in DataTexture is too big (" + dimensions.width + "x" + dimensions.height + ").");
        }
        return image;
      }
    }
    return image;
  }
  function textureNeedsGenerateMipmaps(texture) {
    return texture.generateMipmaps;
  }
  function generateMipmap(target) {
    _gl.generateMipmap(target);
  }
  function getTargetType(texture) {
    if (texture.isWebGLCubeRenderTarget) return _gl.TEXTURE_CUBE_MAP;
    if (texture.isWebGL3DRenderTarget) return _gl.TEXTURE_3D;
    if (texture.isWebGLArrayRenderTarget || texture.isCompressedArrayTexture) return _gl.TEXTURE_2D_ARRAY;
    return _gl.TEXTURE_2D;
  }
  function getInternalFormat(internalFormatName, glFormat, glType, colorSpace, forceLinearTransfer = false) {
    if (internalFormatName !== null) {
      if (_gl[internalFormatName] !== void 0) return _gl[internalFormatName];
      console.warn("THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format '" + internalFormatName + "'");
    }
    let internalFormat = glFormat;
    if (glFormat === _gl.RED) {
      if (glType === _gl.FLOAT) internalFormat = _gl.R32F;
      if (glType === _gl.HALF_FLOAT) internalFormat = _gl.R16F;
      if (glType === _gl.UNSIGNED_BYTE) internalFormat = _gl.R8;
    }
    if (glFormat === _gl.RED_INTEGER) {
      if (glType === _gl.UNSIGNED_BYTE) internalFormat = _gl.R8UI;
      if (glType === _gl.UNSIGNED_SHORT) internalFormat = _gl.R16UI;
      if (glType === _gl.UNSIGNED_INT) internalFormat = _gl.R32UI;
      if (glType === _gl.BYTE) internalFormat = _gl.R8I;
      if (glType === _gl.SHORT) internalFormat = _gl.R16I;
      if (glType === _gl.INT) internalFormat = _gl.R32I;
    }
    if (glFormat === _gl.RG) {
      if (glType === _gl.FLOAT) internalFormat = _gl.RG32F;
      if (glType === _gl.HALF_FLOAT) internalFormat = _gl.RG16F;
      if (glType === _gl.UNSIGNED_BYTE) internalFormat = _gl.RG8;
    }
    if (glFormat === _gl.RG_INTEGER) {
      if (glType === _gl.UNSIGNED_BYTE) internalFormat = _gl.RG8UI;
      if (glType === _gl.UNSIGNED_SHORT) internalFormat = _gl.RG16UI;
      if (glType === _gl.UNSIGNED_INT) internalFormat = _gl.RG32UI;
      if (glType === _gl.BYTE) internalFormat = _gl.RG8I;
      if (glType === _gl.SHORT) internalFormat = _gl.RG16I;
      if (glType === _gl.INT) internalFormat = _gl.RG32I;
    }
    if (glFormat === _gl.RGB_INTEGER) {
      if (glType === _gl.UNSIGNED_BYTE) internalFormat = _gl.RGB8UI;
      if (glType === _gl.UNSIGNED_SHORT) internalFormat = _gl.RGB16UI;
      if (glType === _gl.UNSIGNED_INT) internalFormat = _gl.RGB32UI;
      if (glType === _gl.BYTE) internalFormat = _gl.RGB8I;
      if (glType === _gl.SHORT) internalFormat = _gl.RGB16I;
      if (glType === _gl.INT) internalFormat = _gl.RGB32I;
    }
    if (glFormat === _gl.RGBA_INTEGER) {
      if (glType === _gl.UNSIGNED_BYTE) internalFormat = _gl.RGBA8UI;
      if (glType === _gl.UNSIGNED_SHORT) internalFormat = _gl.RGBA16UI;
      if (glType === _gl.UNSIGNED_INT) internalFormat = _gl.RGBA32UI;
      if (glType === _gl.BYTE) internalFormat = _gl.RGBA8I;
      if (glType === _gl.SHORT) internalFormat = _gl.RGBA16I;
      if (glType === _gl.INT) internalFormat = _gl.RGBA32I;
    }
    if (glFormat === _gl.RGB) {
      if (glType === _gl.UNSIGNED_INT_5_9_9_9_REV) internalFormat = _gl.RGB9_E5;
    }
    if (glFormat === _gl.RGBA) {
      const transfer = forceLinearTransfer ? LinearTransfer : ColorManagement.getTransfer(colorSpace);
      if (glType === _gl.FLOAT) internalFormat = _gl.RGBA32F;
      if (glType === _gl.HALF_FLOAT) internalFormat = _gl.RGBA16F;
      if (glType === _gl.UNSIGNED_BYTE) internalFormat = transfer === SRGBTransfer ? _gl.SRGB8_ALPHA8 : _gl.RGBA8;
      if (glType === _gl.UNSIGNED_SHORT_4_4_4_4) internalFormat = _gl.RGBA4;
      if (glType === _gl.UNSIGNED_SHORT_5_5_5_1) internalFormat = _gl.RGB5_A1;
    }
    if (internalFormat === _gl.R16F || internalFormat === _gl.R32F || internalFormat === _gl.RG16F || internalFormat === _gl.RG32F || internalFormat === _gl.RGBA16F || internalFormat === _gl.RGBA32F) {
      extensions.get("EXT_color_buffer_float");
    }
    return internalFormat;
  }
  function getInternalDepthFormat(useStencil, depthType) {
    let glInternalFormat;
    if (useStencil) {
      if (depthType === null || depthType === UnsignedIntType || depthType === UnsignedInt248Type) {
        glInternalFormat = _gl.DEPTH24_STENCIL8;
      } else if (depthType === FloatType) {
        glInternalFormat = _gl.DEPTH32F_STENCIL8;
      } else if (depthType === UnsignedShortType) {
        glInternalFormat = _gl.DEPTH24_STENCIL8;
        console.warn("DepthTexture: 16 bit depth attachment is not supported with stencil. Using 24-bit attachment.");
      }
    } else {
      if (depthType === null || depthType === UnsignedIntType || depthType === UnsignedInt248Type) {
        glInternalFormat = _gl.DEPTH_COMPONENT24;
      } else if (depthType === FloatType) {
        glInternalFormat = _gl.DEPTH_COMPONENT32F;
      } else if (depthType === UnsignedShortType) {
        glInternalFormat = _gl.DEPTH_COMPONENT16;
      }
    }
    return glInternalFormat;
  }
  function getMipLevels(texture, image) {
    if (textureNeedsGenerateMipmaps(texture) === true || texture.isFramebufferTexture && texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter) {
      return Math.log2(Math.max(image.width, image.height)) + 1;
    } else if (texture.mipmaps !== void 0 && texture.mipmaps.length > 0) {
      return texture.mipmaps.length;
    } else if (texture.isCompressedTexture && Array.isArray(texture.image)) {
      return image.mipmaps.length;
    } else {
      return 1;
    }
  }
  function onTextureDispose(event) {
    const texture = event.target;
    texture.removeEventListener("dispose", onTextureDispose);
    deallocateTexture(texture);
    if (texture.isVideoTexture) {
      _videoTextures.delete(texture);
    }
  }
  function onRenderTargetDispose(event) {
    const renderTarget = event.target;
    renderTarget.removeEventListener("dispose", onRenderTargetDispose);
    deallocateRenderTarget(renderTarget);
  }
  function deallocateTexture(texture) {
    const textureProperties = properties.get(texture);
    if (textureProperties.__webglInit === void 0) return;
    const source = texture.source;
    const webglTextures = _sources.get(source);
    if (webglTextures) {
      const webglTexture = webglTextures[textureProperties.__cacheKey];
      webglTexture.usedTimes--;
      if (webglTexture.usedTimes === 0) {
        deleteTexture(texture);
      }
      if (Object.keys(webglTextures).length === 0) {
        _sources.delete(source);
      }
    }
    properties.remove(texture);
  }
  function deleteTexture(texture) {
    const textureProperties = properties.get(texture);
    _gl.deleteTexture(textureProperties.__webglTexture);
    const source = texture.source;
    const webglTextures = _sources.get(source);
    delete webglTextures[textureProperties.__cacheKey];
    info.memory.textures--;
  }
  function deallocateRenderTarget(renderTarget) {
    const renderTargetProperties = properties.get(renderTarget);
    if (renderTarget.depthTexture) {
      renderTarget.depthTexture.dispose();
      properties.remove(renderTarget.depthTexture);
    }
    if (renderTarget.isWebGLCubeRenderTarget) {
      for (let i = 0; i < 6; i++) {
        if (Array.isArray(renderTargetProperties.__webglFramebuffer[i])) {
          for (let level = 0; level < renderTargetProperties.__webglFramebuffer[i].length; level++) _gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer[i][level]);
        } else {
          _gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer[i]);
        }
        if (renderTargetProperties.__webglDepthbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer[i]);
      }
    } else {
      if (Array.isArray(renderTargetProperties.__webglFramebuffer)) {
        for (let level = 0; level < renderTargetProperties.__webglFramebuffer.length; level++) _gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer[level]);
      } else {
        _gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer);
      }
      if (renderTargetProperties.__webglDepthbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer);
      if (renderTargetProperties.__webglMultisampledFramebuffer) _gl.deleteFramebuffer(renderTargetProperties.__webglMultisampledFramebuffer);
      if (renderTargetProperties.__webglColorRenderbuffer) {
        for (let i = 0; i < renderTargetProperties.__webglColorRenderbuffer.length; i++) {
          if (renderTargetProperties.__webglColorRenderbuffer[i]) _gl.deleteRenderbuffer(renderTargetProperties.__webglColorRenderbuffer[i]);
        }
      }
      if (renderTargetProperties.__webglDepthRenderbuffer) _gl.deleteRenderbuffer(renderTargetProperties.__webglDepthRenderbuffer);
    }
    const textures = renderTarget.textures;
    for (let i = 0, il = textures.length; i < il; i++) {
      const attachmentProperties = properties.get(textures[i]);
      if (attachmentProperties.__webglTexture) {
        _gl.deleteTexture(attachmentProperties.__webglTexture);
        info.memory.textures--;
      }
      properties.remove(textures[i]);
    }
    properties.remove(renderTarget);
  }
  let textureUnits = 0;
  function resetTextureUnits() {
    textureUnits = 0;
  }
  function allocateTextureUnit() {
    const textureUnit = textureUnits;
    if (textureUnit >= capabilities.maxTextures) {
      console.warn("THREE.WebGLTextures: Trying to use " + textureUnit + " texture units while this GPU supports only " + capabilities.maxTextures);
    }
    textureUnits += 1;
    return textureUnit;
  }
  function getTextureCacheKey(texture) {
    const array = [];
    array.push(texture.wrapS);
    array.push(texture.wrapT);
    array.push(texture.wrapR || 0);
    array.push(texture.magFilter);
    array.push(texture.minFilter);
    array.push(texture.anisotropy);
    array.push(texture.internalFormat);
    array.push(texture.format);
    array.push(texture.type);
    array.push(texture.generateMipmaps);
    array.push(texture.premultiplyAlpha);
    array.push(texture.flipY);
    array.push(texture.unpackAlignment);
    array.push(texture.colorSpace);
    return array.join();
  }
  function setTexture2D(texture, slot) {
    const textureProperties = properties.get(texture);
    if (texture.isVideoTexture) updateVideoTexture(texture);
    if (texture.isRenderTargetTexture === false && texture.version > 0 && textureProperties.__version !== texture.version) {
      const image = texture.image;
      if (image === null) {
        console.warn("THREE.WebGLRenderer: Texture marked for update but no image data found.");
      } else if (image.complete === false) {
        console.warn("THREE.WebGLRenderer: Texture marked for update but image is incomplete");
      } else {
        uploadTexture(textureProperties, texture, slot);
        return;
      }
    }
    state.bindTexture(_gl.TEXTURE_2D, textureProperties.__webglTexture, _gl.TEXTURE0 + slot);
  }
  function setTexture2DArray(texture, slot) {
    const textureProperties = properties.get(texture);
    if (texture.version > 0 && textureProperties.__version !== texture.version) {
      uploadTexture(textureProperties, texture, slot);
      return;
    }
    state.bindTexture(_gl.TEXTURE_2D_ARRAY, textureProperties.__webglTexture, _gl.TEXTURE0 + slot);
  }
  function setTexture3D(texture, slot) {
    const textureProperties = properties.get(texture);
    if (texture.version > 0 && textureProperties.__version !== texture.version) {
      uploadTexture(textureProperties, texture, slot);
      return;
    }
    state.bindTexture(_gl.TEXTURE_3D, textureProperties.__webglTexture, _gl.TEXTURE0 + slot);
  }
  function setTextureCube(texture, slot) {
    const textureProperties = properties.get(texture);
    if (texture.version > 0 && textureProperties.__version !== texture.version) {
      uploadCubeTexture(textureProperties, texture, slot);
      return;
    }
    state.bindTexture(_gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture, _gl.TEXTURE0 + slot);
  }
  const wrappingToGL = {
    [RepeatWrapping]: _gl.REPEAT,
    [ClampToEdgeWrapping]: _gl.CLAMP_TO_EDGE,
    [MirroredRepeatWrapping]: _gl.MIRRORED_REPEAT
  };
  const filterToGL = {
    [NearestFilter]: _gl.NEAREST,
    [NearestMipmapNearestFilter]: _gl.NEAREST_MIPMAP_NEAREST,
    [NearestMipmapLinearFilter]: _gl.NEAREST_MIPMAP_LINEAR,
    [LinearFilter]: _gl.LINEAR,
    [LinearMipmapNearestFilter]: _gl.LINEAR_MIPMAP_NEAREST,
    [LinearMipmapLinearFilter]: _gl.LINEAR_MIPMAP_LINEAR
  };
  const compareToGL = {
    [NeverCompare]: _gl.NEVER,
    [AlwaysCompare]: _gl.ALWAYS,
    [LessCompare]: _gl.LESS,
    [LessEqualCompare]: _gl.LEQUAL,
    [EqualCompare]: _gl.EQUAL,
    [GreaterEqualCompare]: _gl.GEQUAL,
    [GreaterCompare]: _gl.GREATER,
    [NotEqualCompare]: _gl.NOTEQUAL
  };
  function setTextureParameters(textureType, texture) {
    if (texture.type === FloatType && extensions.has("OES_texture_float_linear") === false && (texture.magFilter === LinearFilter || texture.magFilter === LinearMipmapNearestFilter || texture.magFilter === NearestMipmapLinearFilter || texture.magFilter === LinearMipmapLinearFilter || texture.minFilter === LinearFilter || texture.minFilter === LinearMipmapNearestFilter || texture.minFilter === NearestMipmapLinearFilter || texture.minFilter === LinearMipmapLinearFilter)) {
      console.warn("THREE.WebGLRenderer: Unable to use linear filtering with floating point textures. OES_texture_float_linear not supported on this device.");
    }
    _gl.texParameteri(textureType, _gl.TEXTURE_WRAP_S, wrappingToGL[texture.wrapS]);
    _gl.texParameteri(textureType, _gl.TEXTURE_WRAP_T, wrappingToGL[texture.wrapT]);
    if (textureType === _gl.TEXTURE_3D || textureType === _gl.TEXTURE_2D_ARRAY) {
      _gl.texParameteri(textureType, _gl.TEXTURE_WRAP_R, wrappingToGL[texture.wrapR]);
    }
    _gl.texParameteri(textureType, _gl.TEXTURE_MAG_FILTER, filterToGL[texture.magFilter]);
    _gl.texParameteri(textureType, _gl.TEXTURE_MIN_FILTER, filterToGL[texture.minFilter]);
    if (texture.compareFunction) {
      _gl.texParameteri(textureType, _gl.TEXTURE_COMPARE_MODE, _gl.COMPARE_REF_TO_TEXTURE);
      _gl.texParameteri(textureType, _gl.TEXTURE_COMPARE_FUNC, compareToGL[texture.compareFunction]);
    }
    if (extensions.has("EXT_texture_filter_anisotropic") === true) {
      if (texture.magFilter === NearestFilter) return;
      if (texture.minFilter !== NearestMipmapLinearFilter && texture.minFilter !== LinearMipmapLinearFilter) return;
      if (texture.type === FloatType && extensions.has("OES_texture_float_linear") === false) return;
      if (texture.anisotropy > 1 || properties.get(texture).__currentAnisotropy) {
        const extension = extensions.get("EXT_texture_filter_anisotropic");
        _gl.texParameterf(textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min(texture.anisotropy, capabilities.getMaxAnisotropy()));
        properties.get(texture).__currentAnisotropy = texture.anisotropy;
      }
    }
  }
  function initTexture(textureProperties, texture) {
    let forceUpload = false;
    if (textureProperties.__webglInit === void 0) {
      textureProperties.__webglInit = true;
      texture.addEventListener("dispose", onTextureDispose);
    }
    const source = texture.source;
    let webglTextures = _sources.get(source);
    if (webglTextures === void 0) {
      webglTextures = {};
      _sources.set(source, webglTextures);
    }
    const textureCacheKey = getTextureCacheKey(texture);
    if (textureCacheKey !== textureProperties.__cacheKey) {
      if (webglTextures[textureCacheKey] === void 0) {
        webglTextures[textureCacheKey] = {
          texture: _gl.createTexture(),
          usedTimes: 0
        };
        info.memory.textures++;
        forceUpload = true;
      }
      webglTextures[textureCacheKey].usedTimes++;
      const webglTexture = webglTextures[textureProperties.__cacheKey];
      if (webglTexture !== void 0) {
        webglTextures[textureProperties.__cacheKey].usedTimes--;
        if (webglTexture.usedTimes === 0) {
          deleteTexture(texture);
        }
      }
      textureProperties.__cacheKey = textureCacheKey;
      textureProperties.__webglTexture = webglTextures[textureCacheKey].texture;
    }
    return forceUpload;
  }
  function uploadTexture(textureProperties, texture, slot) {
    let textureType = _gl.TEXTURE_2D;
    if (texture.isDataArrayTexture || texture.isCompressedArrayTexture) textureType = _gl.TEXTURE_2D_ARRAY;
    if (texture.isData3DTexture) textureType = _gl.TEXTURE_3D;
    const forceUpload = initTexture(textureProperties, texture);
    const source = texture.source;
    state.bindTexture(textureType, textureProperties.__webglTexture, _gl.TEXTURE0 + slot);
    const sourceProperties = properties.get(source);
    if (source.version !== sourceProperties.__version || forceUpload === true) {
      state.activeTexture(_gl.TEXTURE0 + slot);
      const workingPrimaries = ColorManagement.getPrimaries(ColorManagement.workingColorSpace);
      const texturePrimaries = texture.colorSpace === NoColorSpace ? null : ColorManagement.getPrimaries(texture.colorSpace);
      const unpackConversion = texture.colorSpace === NoColorSpace || workingPrimaries === texturePrimaries ? _gl.NONE : _gl.BROWSER_DEFAULT_WEBGL;
      _gl.pixelStorei(_gl.UNPACK_FLIP_Y_WEBGL, texture.flipY);
      _gl.pixelStorei(_gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha);
      _gl.pixelStorei(_gl.UNPACK_ALIGNMENT, texture.unpackAlignment);
      _gl.pixelStorei(_gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, unpackConversion);
      let image = resizeImage(texture.image, false, capabilities.maxTextureSize);
      image = verifyColorSpace(texture, image);
      const glFormat = utils.convert(texture.format, texture.colorSpace);
      const glType = utils.convert(texture.type);
      let glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType, texture.colorSpace, texture.isVideoTexture);
      setTextureParameters(textureType, texture);
      let mipmap;
      const mipmaps = texture.mipmaps;
      const useTexStorage = texture.isVideoTexture !== true;
      const allocateMemory = sourceProperties.__version === void 0 || forceUpload === true;
      const dataReady = source.dataReady;
      const levels = getMipLevels(texture, image);
      if (texture.isDepthTexture) {
        glInternalFormat = getInternalDepthFormat(texture.format === DepthStencilFormat, texture.type);
        if (allocateMemory) {
          if (useTexStorage) {
            state.texStorage2D(_gl.TEXTURE_2D, 1, glInternalFormat, image.width, image.height);
          } else {
            state.texImage2D(_gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, null);
          }
        }
      } else if (texture.isDataTexture) {
        if (mipmaps.length > 0) {
          if (useTexStorage && allocateMemory) {
            state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, mipmaps[0].width, mipmaps[0].height);
          }
          for (let i = 0, il = mipmaps.length; i < il; i++) {
            mipmap = mipmaps[i];
            if (useTexStorage) {
              if (dataReady) {
                state.texSubImage2D(_gl.TEXTURE_2D, i, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data);
              }
            } else {
              state.texImage2D(_gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
            }
          }
          texture.generateMipmaps = false;
        } else {
          if (useTexStorage) {
            if (allocateMemory) {
              state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, image.width, image.height);
            }
            if (dataReady) {
              state.texSubImage2D(_gl.TEXTURE_2D, 0, 0, 0, image.width, image.height, glFormat, glType, image.data);
            }
          } else {
            state.texImage2D(_gl.TEXTURE_2D, 0, glInternalFormat, image.width, image.height, 0, glFormat, glType, image.data);
          }
        }
      } else if (texture.isCompressedTexture) {
        if (texture.isCompressedArrayTexture) {
          if (useTexStorage && allocateMemory) {
            state.texStorage3D(_gl.TEXTURE_2D_ARRAY, levels, glInternalFormat, mipmaps[0].width, mipmaps[0].height, image.depth);
          }
          for (let i = 0, il = mipmaps.length; i < il; i++) {
            mipmap = mipmaps[i];
            if (texture.format !== RGBAFormat) {
              if (glFormat !== null) {
                if (useTexStorage) {
                  if (dataReady) {
                    if (texture.layerUpdates.size > 0) {
                      const layerByteLength = getByteLength(mipmap.width, mipmap.height, texture.format, texture.type);
                      for (const layerIndex of texture.layerUpdates) {
                        const layerData = mipmap.data.subarray(
                          layerIndex * layerByteLength / mipmap.data.BYTES_PER_ELEMENT,
                          (layerIndex + 1) * layerByteLength / mipmap.data.BYTES_PER_ELEMENT
                        );
                        state.compressedTexSubImage3D(_gl.TEXTURE_2D_ARRAY, i, 0, 0, layerIndex, mipmap.width, mipmap.height, 1, glFormat, layerData);
                      }
                      texture.clearLayerUpdates();
                    } else {
                      state.compressedTexSubImage3D(_gl.TEXTURE_2D_ARRAY, i, 0, 0, 0, mipmap.width, mipmap.height, image.depth, glFormat, mipmap.data);
                    }
                  }
                } else {
                  state.compressedTexImage3D(_gl.TEXTURE_2D_ARRAY, i, glInternalFormat, mipmap.width, mipmap.height, image.depth, 0, mipmap.data, 0, 0);
                }
              } else {
                console.warn("THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()");
              }
            } else {
              if (useTexStorage) {
                if (dataReady) {
                  state.texSubImage3D(_gl.TEXTURE_2D_ARRAY, i, 0, 0, 0, mipmap.width, mipmap.height, image.depth, glFormat, glType, mipmap.data);
                }
              } else {
                state.texImage3D(_gl.TEXTURE_2D_ARRAY, i, glInternalFormat, mipmap.width, mipmap.height, image.depth, 0, glFormat, glType, mipmap.data);
              }
            }
          }
        } else {
          if (useTexStorage && allocateMemory) {
            state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, mipmaps[0].width, mipmaps[0].height);
          }
          for (let i = 0, il = mipmaps.length; i < il; i++) {
            mipmap = mipmaps[i];
            if (texture.format !== RGBAFormat) {
              if (glFormat !== null) {
                if (useTexStorage) {
                  if (dataReady) {
                    state.compressedTexSubImage2D(_gl.TEXTURE_2D, i, 0, 0, mipmap.width, mipmap.height, glFormat, mipmap.data);
                  }
                } else {
                  state.compressedTexImage2D(_gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data);
                }
              } else {
                console.warn("THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()");
              }
            } else {
              if (useTexStorage) {
                if (dataReady) {
                  state.texSubImage2D(_gl.TEXTURE_2D, i, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data);
                }
              } else {
                state.texImage2D(_gl.TEXTURE_2D, i, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
              }
            }
          }
        }
      } else if (texture.isDataArrayTexture) {
        if (useTexStorage) {
          if (allocateMemory) {
            state.texStorage3D(_gl.TEXTURE_2D_ARRAY, levels, glInternalFormat, image.width, image.height, image.depth);
          }
          if (dataReady) {
            if (texture.layerUpdates.size > 0) {
              const layerByteLength = getByteLength(image.width, image.height, texture.format, texture.type);
              for (const layerIndex of texture.layerUpdates) {
                const layerData = image.data.subarray(
                  layerIndex * layerByteLength / image.data.BYTES_PER_ELEMENT,
                  (layerIndex + 1) * layerByteLength / image.data.BYTES_PER_ELEMENT
                );
                state.texSubImage3D(_gl.TEXTURE_2D_ARRAY, 0, 0, 0, layerIndex, image.width, image.height, 1, glFormat, glType, layerData);
              }
              texture.clearLayerUpdates();
            } else {
              state.texSubImage3D(_gl.TEXTURE_2D_ARRAY, 0, 0, 0, 0, image.width, image.height, image.depth, glFormat, glType, image.data);
            }
          }
        } else {
          state.texImage3D(_gl.TEXTURE_2D_ARRAY, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data);
        }
      } else if (texture.isData3DTexture) {
        if (useTexStorage) {
          if (allocateMemory) {
            state.texStorage3D(_gl.TEXTURE_3D, levels, glInternalFormat, image.width, image.height, image.depth);
          }
          if (dataReady) {
            state.texSubImage3D(_gl.TEXTURE_3D, 0, 0, 0, 0, image.width, image.height, image.depth, glFormat, glType, image.data);
          }
        } else {
          state.texImage3D(_gl.TEXTURE_3D, 0, glInternalFormat, image.width, image.height, image.depth, 0, glFormat, glType, image.data);
        }
      } else if (texture.isFramebufferTexture) {
        if (allocateMemory) {
          if (useTexStorage) {
            state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, image.width, image.height);
          } else {
            let width = image.width, height = image.height;
            for (let i = 0; i < levels; i++) {
              state.texImage2D(_gl.TEXTURE_2D, i, glInternalFormat, width, height, 0, glFormat, glType, null);
              width >>= 1;
              height >>= 1;
            }
          }
        }
      } else {
        if (mipmaps.length > 0) {
          if (useTexStorage && allocateMemory) {
            const dimensions = getDimensions(mipmaps[0]);
            state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, dimensions.width, dimensions.height);
          }
          for (let i = 0, il = mipmaps.length; i < il; i++) {
            mipmap = mipmaps[i];
            if (useTexStorage) {
              if (dataReady) {
                state.texSubImage2D(_gl.TEXTURE_2D, i, 0, 0, glFormat, glType, mipmap);
              }
            } else {
              state.texImage2D(_gl.TEXTURE_2D, i, glInternalFormat, glFormat, glType, mipmap);
            }
          }
          texture.generateMipmaps = false;
        } else {
          if (useTexStorage) {
            if (allocateMemory) {
              const dimensions = getDimensions(image);
              state.texStorage2D(_gl.TEXTURE_2D, levels, glInternalFormat, dimensions.width, dimensions.height);
            }
            if (dataReady) {
              state.texSubImage2D(_gl.TEXTURE_2D, 0, 0, 0, glFormat, glType, image);
            }
          } else {
            state.texImage2D(_gl.TEXTURE_2D, 0, glInternalFormat, glFormat, glType, image);
          }
        }
      }
      if (textureNeedsGenerateMipmaps(texture)) {
        generateMipmap(textureType);
      }
      sourceProperties.__version = source.version;
      if (texture.onUpdate) texture.onUpdate(texture);
    }
    textureProperties.__version = texture.version;
  }
  function uploadCubeTexture(textureProperties, texture, slot) {
    if (texture.image.length !== 6) return;
    const forceUpload = initTexture(textureProperties, texture);
    const source = texture.source;
    state.bindTexture(_gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture, _gl.TEXTURE0 + slot);
    const sourceProperties = properties.get(source);
    if (source.version !== sourceProperties.__version || forceUpload === true) {
      state.activeTexture(_gl.TEXTURE0 + slot);
      const workingPrimaries = ColorManagement.getPrimaries(ColorManagement.workingColorSpace);
      const texturePrimaries = texture.colorSpace === NoColorSpace ? null : ColorManagement.getPrimaries(texture.colorSpace);
      const unpackConversion = texture.colorSpace === NoColorSpace || workingPrimaries === texturePrimaries ? _gl.NONE : _gl.BROWSER_DEFAULT_WEBGL;
      _gl.pixelStorei(_gl.UNPACK_FLIP_Y_WEBGL, texture.flipY);
      _gl.pixelStorei(_gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha);
      _gl.pixelStorei(_gl.UNPACK_ALIGNMENT, texture.unpackAlignment);
      _gl.pixelStorei(_gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, unpackConversion);
      const isCompressed = texture.isCompressedTexture || texture.image[0].isCompressedTexture;
      const isDataTexture = texture.image[0] && texture.image[0].isDataTexture;
      const cubeImage = [];
      for (let i = 0; i < 6; i++) {
        if (!isCompressed && !isDataTexture) {
          cubeImage[i] = resizeImage(texture.image[i], true, capabilities.maxCubemapSize);
        } else {
          cubeImage[i] = isDataTexture ? texture.image[i].image : texture.image[i];
        }
        cubeImage[i] = verifyColorSpace(texture, cubeImage[i]);
      }
      const image = cubeImage[0], glFormat = utils.convert(texture.format, texture.colorSpace), glType = utils.convert(texture.type), glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType, texture.colorSpace);
      const useTexStorage = texture.isVideoTexture !== true;
      const allocateMemory = sourceProperties.__version === void 0 || forceUpload === true;
      const dataReady = source.dataReady;
      let levels = getMipLevels(texture, image);
      setTextureParameters(_gl.TEXTURE_CUBE_MAP, texture);
      let mipmaps;
      if (isCompressed) {
        if (useTexStorage && allocateMemory) {
          state.texStorage2D(_gl.TEXTURE_CUBE_MAP, levels, glInternalFormat, image.width, image.height);
        }
        for (let i = 0; i < 6; i++) {
          mipmaps = cubeImage[i].mipmaps;
          for (let j = 0; j < mipmaps.length; j++) {
            const mipmap = mipmaps[j];
            if (texture.format !== RGBAFormat) {
              if (glFormat !== null) {
                if (useTexStorage) {
                  if (dataReady) {
                    state.compressedTexSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, 0, 0, mipmap.width, mipmap.height, glFormat, mipmap.data);
                  }
                } else {
                  state.compressedTexImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, mipmap.data);
                }
              } else {
                console.warn("THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()");
              }
            } else {
              if (useTexStorage) {
                if (dataReady) {
                  state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, 0, 0, mipmap.width, mipmap.height, glFormat, glType, mipmap.data);
                }
              } else {
                state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glInternalFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data);
              }
            }
          }
        }
      } else {
        mipmaps = texture.mipmaps;
        if (useTexStorage && allocateMemory) {
          if (mipmaps.length > 0) levels++;
          const dimensions = getDimensions(cubeImage[0]);
          state.texStorage2D(_gl.TEXTURE_CUBE_MAP, levels, glInternalFormat, dimensions.width, dimensions.height);
        }
        for (let i = 0; i < 6; i++) {
          if (isDataTexture) {
            if (useTexStorage) {
              if (dataReady) {
                state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, 0, 0, cubeImage[i].width, cubeImage[i].height, glFormat, glType, cubeImage[i].data);
              }
            } else {
              state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, cubeImage[i].width, cubeImage[i].height, 0, glFormat, glType, cubeImage[i].data);
            }
            for (let j = 0; j < mipmaps.length; j++) {
              const mipmap = mipmaps[j];
              const mipmapImage = mipmap.image[i].image;
              if (useTexStorage) {
                if (dataReady) {
                  state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j + 1, 0, 0, mipmapImage.width, mipmapImage.height, glFormat, glType, mipmapImage.data);
                }
              } else {
                state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j + 1, glInternalFormat, mipmapImage.width, mipmapImage.height, 0, glFormat, glType, mipmapImage.data);
              }
            }
          } else {
            if (useTexStorage) {
              if (dataReady) {
                state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, 0, 0, glFormat, glType, cubeImage[i]);
              }
            } else {
              state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, glFormat, glType, cubeImage[i]);
            }
            for (let j = 0; j < mipmaps.length; j++) {
              const mipmap = mipmaps[j];
              if (useTexStorage) {
                if (dataReady) {
                  state.texSubImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j + 1, 0, 0, glFormat, glType, mipmap.image[i]);
                }
              } else {
                state.texImage2D(_gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j + 1, glInternalFormat, glFormat, glType, mipmap.image[i]);
              }
            }
          }
        }
      }
      if (textureNeedsGenerateMipmaps(texture)) {
        generateMipmap(_gl.TEXTURE_CUBE_MAP);
      }
      sourceProperties.__version = source.version;
      if (texture.onUpdate) texture.onUpdate(texture);
    }
    textureProperties.__version = texture.version;
  }
  function setupFrameBufferTexture(framebuffer, renderTarget, texture, attachment, textureTarget, level) {
    const glFormat = utils.convert(texture.format, texture.colorSpace);
    const glType = utils.convert(texture.type);
    const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType, texture.colorSpace);
    const renderTargetProperties = properties.get(renderTarget);
    const textureProperties = properties.get(texture);
    textureProperties.__renderTarget = renderTarget;
    if (!renderTargetProperties.__hasExternalTextures) {
      const width = Math.max(1, renderTarget.width >> level);
      const height = Math.max(1, renderTarget.height >> level);
      if (textureTarget === _gl.TEXTURE_3D || textureTarget === _gl.TEXTURE_2D_ARRAY) {
        state.texImage3D(textureTarget, level, glInternalFormat, width, height, renderTarget.depth, 0, glFormat, glType, null);
      } else {
        state.texImage2D(textureTarget, level, glInternalFormat, width, height, 0, glFormat, glType, null);
      }
    }
    state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);
    if (useMultisampledRTT(renderTarget)) {
      multisampledRTTExt.framebufferTexture2DMultisampleEXT(_gl.FRAMEBUFFER, attachment, textureTarget, textureProperties.__webglTexture, 0, getRenderTargetSamples(renderTarget));
    } else if (textureTarget === _gl.TEXTURE_2D || textureTarget >= _gl.TEXTURE_CUBE_MAP_POSITIVE_X && textureTarget <= _gl.TEXTURE_CUBE_MAP_NEGATIVE_Z) {
      _gl.framebufferTexture2D(_gl.FRAMEBUFFER, attachment, textureTarget, textureProperties.__webglTexture, level);
    }
    state.bindFramebuffer(_gl.FRAMEBUFFER, null);
  }
  function setupRenderBufferStorage(renderbuffer, renderTarget, isMultisample) {
    _gl.bindRenderbuffer(_gl.RENDERBUFFER, renderbuffer);
    if (renderTarget.depthBuffer) {
      const depthTexture = renderTarget.depthTexture;
      const depthType = depthTexture && depthTexture.isDepthTexture ? depthTexture.type : null;
      const glInternalFormat = getInternalDepthFormat(renderTarget.stencilBuffer, depthType);
      const glAttachmentType = renderTarget.stencilBuffer ? _gl.DEPTH_STENCIL_ATTACHMENT : _gl.DEPTH_ATTACHMENT;
      const samples = getRenderTargetSamples(renderTarget);
      const isUseMultisampledRTT = useMultisampledRTT(renderTarget);
      if (isUseMultisampledRTT) {
        multisampledRTTExt.renderbufferStorageMultisampleEXT(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);
      } else if (isMultisample) {
        _gl.renderbufferStorageMultisample(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);
      } else {
        _gl.renderbufferStorage(_gl.RENDERBUFFER, glInternalFormat, renderTarget.width, renderTarget.height);
      }
      _gl.framebufferRenderbuffer(_gl.FRAMEBUFFER, glAttachmentType, _gl.RENDERBUFFER, renderbuffer);
    } else {
      const textures = renderTarget.textures;
      for (let i = 0; i < textures.length; i++) {
        const texture = textures[i];
        const glFormat = utils.convert(texture.format, texture.colorSpace);
        const glType = utils.convert(texture.type);
        const glInternalFormat = getInternalFormat(texture.internalFormat, glFormat, glType, texture.colorSpace);
        const samples = getRenderTargetSamples(renderTarget);
        if (isMultisample && useMultisampledRTT(renderTarget) === false) {
          _gl.renderbufferStorageMultisample(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);
        } else if (useMultisampledRTT(renderTarget)) {
          multisampledRTTExt.renderbufferStorageMultisampleEXT(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);
        } else {
          _gl.renderbufferStorage(_gl.RENDERBUFFER, glInternalFormat, renderTarget.width, renderTarget.height);
        }
      }
    }
    _gl.bindRenderbuffer(_gl.RENDERBUFFER, null);
  }
  function setupDepthTexture(framebuffer, renderTarget) {
    const isCube = renderTarget && renderTarget.isWebGLCubeRenderTarget;
    if (isCube) throw new Error("Depth Texture with cube render targets is not supported");
    state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);
    if (!(renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture)) {
      throw new Error("renderTarget.depthTexture must be an instance of THREE.DepthTexture");
    }
    const textureProperties = properties.get(renderTarget.depthTexture);
    textureProperties.__renderTarget = renderTarget;
    if (!textureProperties.__webglTexture || renderTarget.depthTexture.image.width !== renderTarget.width || renderTarget.depthTexture.image.height !== renderTarget.height) {
      renderTarget.depthTexture.image.width = renderTarget.width;
      renderTarget.depthTexture.image.height = renderTarget.height;
      renderTarget.depthTexture.needsUpdate = true;
    }
    setTexture2D(renderTarget.depthTexture, 0);
    const webglDepthTexture = textureProperties.__webglTexture;
    const samples = getRenderTargetSamples(renderTarget);
    if (renderTarget.depthTexture.format === DepthFormat) {
      if (useMultisampledRTT(renderTarget)) {
        multisampledRTTExt.framebufferTexture2DMultisampleEXT(_gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0, samples);
      } else {
        _gl.framebufferTexture2D(_gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0);
      }
    } else if (renderTarget.depthTexture.format === DepthStencilFormat) {
      if (useMultisampledRTT(renderTarget)) {
        multisampledRTTExt.framebufferTexture2DMultisampleEXT(_gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0, samples);
      } else {
        _gl.framebufferTexture2D(_gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0);
      }
    } else {
      throw new Error("Unknown depthTexture format");
    }
  }
  function setupDepthRenderbuffer(renderTarget) {
    const renderTargetProperties = properties.get(renderTarget);
    const isCube = renderTarget.isWebGLCubeRenderTarget === true;
    if (renderTargetProperties.__boundDepthTexture !== renderTarget.depthTexture) {
      const depthTexture = renderTarget.depthTexture;
      if (renderTargetProperties.__depthDisposeCallback) {
        renderTargetProperties.__depthDisposeCallback();
      }
      if (depthTexture) {
        const disposeEvent = () => {
          delete renderTargetProperties.__boundDepthTexture;
          delete renderTargetProperties.__depthDisposeCallback;
          depthTexture.removeEventListener("dispose", disposeEvent);
        };
        depthTexture.addEventListener("dispose", disposeEvent);
        renderTargetProperties.__depthDisposeCallback = disposeEvent;
      }
      renderTargetProperties.__boundDepthTexture = depthTexture;
    }
    if (renderTarget.depthTexture && !renderTargetProperties.__autoAllocateDepthBuffer) {
      if (isCube) throw new Error("target.depthTexture not supported in Cube render targets");
      setupDepthTexture(renderTargetProperties.__webglFramebuffer, renderTarget);
    } else {
      if (isCube) {
        renderTargetProperties.__webglDepthbuffer = [];
        for (let i = 0; i < 6; i++) {
          state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[i]);
          if (renderTargetProperties.__webglDepthbuffer[i] === void 0) {
            renderTargetProperties.__webglDepthbuffer[i] = _gl.createRenderbuffer();
            setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer[i], renderTarget, false);
          } else {
            const glAttachmentType = renderTarget.stencilBuffer ? _gl.DEPTH_STENCIL_ATTACHMENT : _gl.DEPTH_ATTACHMENT;
            const renderbuffer = renderTargetProperties.__webglDepthbuffer[i];
            _gl.bindRenderbuffer(_gl.RENDERBUFFER, renderbuffer);
            _gl.framebufferRenderbuffer(_gl.FRAMEBUFFER, glAttachmentType, _gl.RENDERBUFFER, renderbuffer);
          }
        }
      } else {
        state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer);
        if (renderTargetProperties.__webglDepthbuffer === void 0) {
          renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
          setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer, renderTarget, false);
        } else {
          const glAttachmentType = renderTarget.stencilBuffer ? _gl.DEPTH_STENCIL_ATTACHMENT : _gl.DEPTH_ATTACHMENT;
          const renderbuffer = renderTargetProperties.__webglDepthbuffer;
          _gl.bindRenderbuffer(_gl.RENDERBUFFER, renderbuffer);
          _gl.framebufferRenderbuffer(_gl.FRAMEBUFFER, glAttachmentType, _gl.RENDERBUFFER, renderbuffer);
        }
      }
    }
    state.bindFramebuffer(_gl.FRAMEBUFFER, null);
  }
  function rebindTextures(renderTarget, colorTexture, depthTexture) {
    const renderTargetProperties = properties.get(renderTarget);
    if (colorTexture !== void 0) {
      setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer, renderTarget, renderTarget.texture, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D, 0);
    }
    if (depthTexture !== void 0) {
      setupDepthRenderbuffer(renderTarget);
    }
  }
  function setupRenderTarget(renderTarget) {
    const texture = renderTarget.texture;
    const renderTargetProperties = properties.get(renderTarget);
    const textureProperties = properties.get(texture);
    renderTarget.addEventListener("dispose", onRenderTargetDispose);
    const textures = renderTarget.textures;
    const isCube = renderTarget.isWebGLCubeRenderTarget === true;
    const isMultipleRenderTargets = textures.length > 1;
    if (!isMultipleRenderTargets) {
      if (textureProperties.__webglTexture === void 0) {
        textureProperties.__webglTexture = _gl.createTexture();
      }
      textureProperties.__version = texture.version;
      info.memory.textures++;
    }
    if (isCube) {
      renderTargetProperties.__webglFramebuffer = [];
      for (let i = 0; i < 6; i++) {
        if (texture.mipmaps && texture.mipmaps.length > 0) {
          renderTargetProperties.__webglFramebuffer[i] = [];
          for (let level = 0; level < texture.mipmaps.length; level++) {
            renderTargetProperties.__webglFramebuffer[i][level] = _gl.createFramebuffer();
          }
        } else {
          renderTargetProperties.__webglFramebuffer[i] = _gl.createFramebuffer();
        }
      }
    } else {
      if (texture.mipmaps && texture.mipmaps.length > 0) {
        renderTargetProperties.__webglFramebuffer = [];
        for (let level = 0; level < texture.mipmaps.length; level++) {
          renderTargetProperties.__webglFramebuffer[level] = _gl.createFramebuffer();
        }
      } else {
        renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();
      }
      if (isMultipleRenderTargets) {
        for (let i = 0, il = textures.length; i < il; i++) {
          const attachmentProperties = properties.get(textures[i]);
          if (attachmentProperties.__webglTexture === void 0) {
            attachmentProperties.__webglTexture = _gl.createTexture();
            info.memory.textures++;
          }
        }
      }
      if (renderTarget.samples > 0 && useMultisampledRTT(renderTarget) === false) {
        renderTargetProperties.__webglMultisampledFramebuffer = _gl.createFramebuffer();
        renderTargetProperties.__webglColorRenderbuffer = [];
        state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer);
        for (let i = 0; i < textures.length; i++) {
          const texture2 = textures[i];
          renderTargetProperties.__webglColorRenderbuffer[i] = _gl.createRenderbuffer();
          _gl.bindRenderbuffer(_gl.RENDERBUFFER, renderTargetProperties.__webglColorRenderbuffer[i]);
          const glFormat = utils.convert(texture2.format, texture2.colorSpace);
          const glType = utils.convert(texture2.type);
          const glInternalFormat = getInternalFormat(texture2.internalFormat, glFormat, glType, texture2.colorSpace, renderTarget.isXRRenderTarget === true);
          const samples = getRenderTargetSamples(renderTarget);
          _gl.renderbufferStorageMultisample(_gl.RENDERBUFFER, samples, glInternalFormat, renderTarget.width, renderTarget.height);
          _gl.framebufferRenderbuffer(_gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0 + i, _gl.RENDERBUFFER, renderTargetProperties.__webglColorRenderbuffer[i]);
        }
        _gl.bindRenderbuffer(_gl.RENDERBUFFER, null);
        if (renderTarget.depthBuffer) {
          renderTargetProperties.__webglDepthRenderbuffer = _gl.createRenderbuffer();
          setupRenderBufferStorage(renderTargetProperties.__webglDepthRenderbuffer, renderTarget, true);
        }
        state.bindFramebuffer(_gl.FRAMEBUFFER, null);
      }
    }
    if (isCube) {
      state.bindTexture(_gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture);
      setTextureParameters(_gl.TEXTURE_CUBE_MAP, texture);
      for (let i = 0; i < 6; i++) {
        if (texture.mipmaps && texture.mipmaps.length > 0) {
          for (let level = 0; level < texture.mipmaps.length; level++) {
            setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer[i][level], renderTarget, texture, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, level);
          }
        } else {
          setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer[i], renderTarget, texture, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0);
        }
      }
      if (textureNeedsGenerateMipmaps(texture)) {
        generateMipmap(_gl.TEXTURE_CUBE_MAP);
      }
      state.unbindTexture();
    } else if (isMultipleRenderTargets) {
      for (let i = 0, il = textures.length; i < il; i++) {
        const attachment = textures[i];
        const attachmentProperties = properties.get(attachment);
        state.bindTexture(_gl.TEXTURE_2D, attachmentProperties.__webglTexture);
        setTextureParameters(_gl.TEXTURE_2D, attachment);
        setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer, renderTarget, attachment, _gl.COLOR_ATTACHMENT0 + i, _gl.TEXTURE_2D, 0);
        if (textureNeedsGenerateMipmaps(attachment)) {
          generateMipmap(_gl.TEXTURE_2D);
        }
      }
      state.unbindTexture();
    } else {
      let glTextureType = _gl.TEXTURE_2D;
      if (renderTarget.isWebGL3DRenderTarget || renderTarget.isWebGLArrayRenderTarget) {
        glTextureType = renderTarget.isWebGL3DRenderTarget ? _gl.TEXTURE_3D : _gl.TEXTURE_2D_ARRAY;
      }
      state.bindTexture(glTextureType, textureProperties.__webglTexture);
      setTextureParameters(glTextureType, texture);
      if (texture.mipmaps && texture.mipmaps.length > 0) {
        for (let level = 0; level < texture.mipmaps.length; level++) {
          setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer[level], renderTarget, texture, _gl.COLOR_ATTACHMENT0, glTextureType, level);
        }
      } else {
        setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer, renderTarget, texture, _gl.COLOR_ATTACHMENT0, glTextureType, 0);
      }
      if (textureNeedsGenerateMipmaps(texture)) {
        generateMipmap(glTextureType);
      }
      state.unbindTexture();
    }
    if (renderTarget.depthBuffer) {
      setupDepthRenderbuffer(renderTarget);
    }
  }
  function updateRenderTargetMipmap(renderTarget) {
    const textures = renderTarget.textures;
    for (let i = 0, il = textures.length; i < il; i++) {
      const texture = textures[i];
      if (textureNeedsGenerateMipmaps(texture)) {
        const targetType = getTargetType(renderTarget);
        const webglTexture = properties.get(texture).__webglTexture;
        state.bindTexture(targetType, webglTexture);
        generateMipmap(targetType);
        state.unbindTexture();
      }
    }
  }
  const invalidationArrayRead = [];
  const invalidationArrayDraw = [];
  function updateMultisampleRenderTarget(renderTarget) {
    if (renderTarget.samples > 0) {
      if (useMultisampledRTT(renderTarget) === false) {
        const textures = renderTarget.textures;
        const width = renderTarget.width;
        const height = renderTarget.height;
        let mask = _gl.COLOR_BUFFER_BIT;
        const depthStyle = renderTarget.stencilBuffer ? _gl.DEPTH_STENCIL_ATTACHMENT : _gl.DEPTH_ATTACHMENT;
        const renderTargetProperties = properties.get(renderTarget);
        const isMultipleRenderTargets = textures.length > 1;
        if (isMultipleRenderTargets) {
          for (let i = 0; i < textures.length; i++) {
            state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer);
            _gl.framebufferRenderbuffer(_gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0 + i, _gl.RENDERBUFFER, null);
            state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer);
            _gl.framebufferTexture2D(_gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0 + i, _gl.TEXTURE_2D, null, 0);
          }
        }
        state.bindFramebuffer(_gl.READ_FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer);
        state.bindFramebuffer(_gl.DRAW_FRAMEBUFFER, renderTargetProperties.__webglFramebuffer);
        for (let i = 0; i < textures.length; i++) {
          if (renderTarget.resolveDepthBuffer) {
            if (renderTarget.depthBuffer) mask |= _gl.DEPTH_BUFFER_BIT;
            if (renderTarget.stencilBuffer && renderTarget.resolveStencilBuffer) mask |= _gl.STENCIL_BUFFER_BIT;
          }
          if (isMultipleRenderTargets) {
            _gl.framebufferRenderbuffer(_gl.READ_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.RENDERBUFFER, renderTargetProperties.__webglColorRenderbuffer[i]);
            const webglTexture = properties.get(textures[i]).__webglTexture;
            _gl.framebufferTexture2D(_gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D, webglTexture, 0);
          }
          _gl.blitFramebuffer(0, 0, width, height, 0, 0, width, height, mask, _gl.NEAREST);
          if (supportsInvalidateFramebuffer === true) {
            invalidationArrayRead.length = 0;
            invalidationArrayDraw.length = 0;
            invalidationArrayRead.push(_gl.COLOR_ATTACHMENT0 + i);
            if (renderTarget.depthBuffer && renderTarget.resolveDepthBuffer === false) {
              invalidationArrayRead.push(depthStyle);
              invalidationArrayDraw.push(depthStyle);
              _gl.invalidateFramebuffer(_gl.DRAW_FRAMEBUFFER, invalidationArrayDraw);
            }
            _gl.invalidateFramebuffer(_gl.READ_FRAMEBUFFER, invalidationArrayRead);
          }
        }
        state.bindFramebuffer(_gl.READ_FRAMEBUFFER, null);
        state.bindFramebuffer(_gl.DRAW_FRAMEBUFFER, null);
        if (isMultipleRenderTargets) {
          for (let i = 0; i < textures.length; i++) {
            state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer);
            _gl.framebufferRenderbuffer(_gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0 + i, _gl.RENDERBUFFER, renderTargetProperties.__webglColorRenderbuffer[i]);
            const webglTexture = properties.get(textures[i]).__webglTexture;
            state.bindFramebuffer(_gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer);
            _gl.framebufferTexture2D(_gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0 + i, _gl.TEXTURE_2D, webglTexture, 0);
          }
        }
        state.bindFramebuffer(_gl.DRAW_FRAMEBUFFER, renderTargetProperties.__webglMultisampledFramebuffer);
      } else {
        if (renderTarget.depthBuffer && renderTarget.resolveDepthBuffer === false && supportsInvalidateFramebuffer) {
          const depthStyle = renderTarget.stencilBuffer ? _gl.DEPTH_STENCIL_ATTACHMENT : _gl.DEPTH_ATTACHMENT;
          _gl.invalidateFramebuffer(_gl.DRAW_FRAMEBUFFER, [depthStyle]);
        }
      }
    }
  }
  function getRenderTargetSamples(renderTarget) {
    return Math.min(capabilities.maxSamples, renderTarget.samples);
  }
  function useMultisampledRTT(renderTarget) {
    const renderTargetProperties = properties.get(renderTarget);
    return renderTarget.samples > 0 && extensions.has("WEBGL_multisampled_render_to_texture") === true && renderTargetProperties.__useRenderToTexture !== false;
  }
  function updateVideoTexture(texture) {
    const frame = info.render.frame;
    if (_videoTextures.get(texture) !== frame) {
      _videoTextures.set(texture, frame);
      texture.update();
    }
  }
  function verifyColorSpace(texture, image) {
    const colorSpace = texture.colorSpace;
    const format = texture.format;
    const type = texture.type;
    if (texture.isCompressedTexture === true || texture.isVideoTexture === true) return image;
    if (colorSpace !== LinearSRGBColorSpace && colorSpace !== NoColorSpace) {
      if (ColorManagement.getTransfer(colorSpace) === SRGBTransfer) {
        if (format !== RGBAFormat || type !== UnsignedByteType) {
          console.warn("THREE.WebGLTextures: sRGB encoded textures have to use RGBAFormat and UnsignedByteType.");
        }
      } else {
        console.error("THREE.WebGLTextures: Unsupported texture color space:", colorSpace);
      }
    }
    return image;
  }
  function getDimensions(image) {
    if (typeof HTMLImageElement !== "undefined" && image instanceof HTMLImageElement) {
      _imageDimensions.width = image.naturalWidth || image.width;
      _imageDimensions.height = image.naturalHeight || image.height;
    } else if (typeof VideoFrame !== "undefined" && image instanceof VideoFrame) {
      _imageDimensions.width = image.displayWidth;
      _imageDimensions.height = image.displayHeight;
    } else {
      _imageDimensions.width = image.width;
      _imageDimensions.height = image.height;
    }
    return _imageDimensions;
  }
  this.allocateTextureUnit = allocateTextureUnit;
  this.resetTextureUnits = resetTextureUnits;
  this.setTexture2D = setTexture2D;
  this.setTexture2DArray = setTexture2DArray;
  this.setTexture3D = setTexture3D;
  this.setTextureCube = setTextureCube;
  this.rebindTextures = rebindTextures;
  this.setupRenderTarget = setupRenderTarget;
  this.updateRenderTargetMipmap = updateRenderTargetMipmap;
  this.updateMultisampleRenderTarget = updateMultisampleRenderTarget;
  this.setupDepthRenderbuffer = setupDepthRenderbuffer;
  this.setupFrameBufferTexture = setupFrameBufferTexture;
  this.useMultisampledRTT = useMultisampledRTT;
}
function WebGLUtils(gl, extensions) {
  function convert(p, colorSpace = NoColorSpace) {
    let extension;
    const transfer = ColorManagement.getTransfer(colorSpace);
    if (p === UnsignedByteType) return gl.UNSIGNED_BYTE;
    if (p === UnsignedShort4444Type) return gl.UNSIGNED_SHORT_4_4_4_4;
    if (p === UnsignedShort5551Type) return gl.UNSIGNED_SHORT_5_5_5_1;
    if (p === UnsignedInt5999Type) return gl.UNSIGNED_INT_5_9_9_9_REV;
    if (p === ByteType) return gl.BYTE;
    if (p === ShortType) return gl.SHORT;
    if (p === UnsignedShortType) return gl.UNSIGNED_SHORT;
    if (p === IntType) return gl.INT;
    if (p === UnsignedIntType) return gl.UNSIGNED_INT;
    if (p === FloatType) return gl.FLOAT;
    if (p === HalfFloatType) return gl.HALF_FLOAT;
    if (p === AlphaFormat) return gl.ALPHA;
    if (p === RGBFormat) return gl.RGB;
    if (p === RGBAFormat) return gl.RGBA;
    if (p === LuminanceFormat) return gl.LUMINANCE;
    if (p === LuminanceAlphaFormat) return gl.LUMINANCE_ALPHA;
    if (p === DepthFormat) return gl.DEPTH_COMPONENT;
    if (p === DepthStencilFormat) return gl.DEPTH_STENCIL;
    if (p === RedFormat) return gl.RED;
    if (p === RedIntegerFormat) return gl.RED_INTEGER;
    if (p === RGFormat) return gl.RG;
    if (p === RGIntegerFormat) return gl.RG_INTEGER;
    if (p === RGBAIntegerFormat) return gl.RGBA_INTEGER;
    if (p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format) {
      if (transfer === SRGBTransfer) {
        extension = extensions.get("WEBGL_compressed_texture_s3tc_srgb");
        if (extension !== null) {
          if (p === RGB_S3TC_DXT1_Format) return extension.COMPRESSED_SRGB_S3TC_DXT1_EXT;
          if (p === RGBA_S3TC_DXT1_Format) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT;
          if (p === RGBA_S3TC_DXT3_Format) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
          if (p === RGBA_S3TC_DXT5_Format) return extension.COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
        } else {
          return null;
        }
      } else {
        extension = extensions.get("WEBGL_compressed_texture_s3tc");
        if (extension !== null) {
          if (p === RGB_S3TC_DXT1_Format) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
          if (p === RGBA_S3TC_DXT1_Format) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
          if (p === RGBA_S3TC_DXT3_Format) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
          if (p === RGBA_S3TC_DXT5_Format) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;
        } else {
          return null;
        }
      }
    }
    if (p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format) {
      extension = extensions.get("WEBGL_compressed_texture_pvrtc");
      if (extension !== null) {
        if (p === RGB_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
        if (p === RGB_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
        if (p === RGBA_PVRTC_4BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
        if (p === RGBA_PVRTC_2BPPV1_Format) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
      } else {
        return null;
      }
    }
    if (p === RGB_ETC1_Format || p === RGB_ETC2_Format || p === RGBA_ETC2_EAC_Format) {
      extension = extensions.get("WEBGL_compressed_texture_etc");
      if (extension !== null) {
        if (p === RGB_ETC1_Format || p === RGB_ETC2_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ETC2 : extension.COMPRESSED_RGB8_ETC2;
        if (p === RGBA_ETC2_EAC_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ETC2_EAC : extension.COMPRESSED_RGBA8_ETC2_EAC;
      } else {
        return null;
      }
    }
    if (p === RGBA_ASTC_4x4_Format || p === RGBA_ASTC_5x4_Format || p === RGBA_ASTC_5x5_Format || p === RGBA_ASTC_6x5_Format || p === RGBA_ASTC_6x6_Format || p === RGBA_ASTC_8x5_Format || p === RGBA_ASTC_8x6_Format || p === RGBA_ASTC_8x8_Format || p === RGBA_ASTC_10x5_Format || p === RGBA_ASTC_10x6_Format || p === RGBA_ASTC_10x8_Format || p === RGBA_ASTC_10x10_Format || p === RGBA_ASTC_12x10_Format || p === RGBA_ASTC_12x12_Format) {
      extension = extensions.get("WEBGL_compressed_texture_astc");
      if (extension !== null) {
        if (p === RGBA_ASTC_4x4_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR : extension.COMPRESSED_RGBA_ASTC_4x4_KHR;
        if (p === RGBA_ASTC_5x4_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR : extension.COMPRESSED_RGBA_ASTC_5x4_KHR;
        if (p === RGBA_ASTC_5x5_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR : extension.COMPRESSED_RGBA_ASTC_5x5_KHR;
        if (p === RGBA_ASTC_6x5_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR : extension.COMPRESSED_RGBA_ASTC_6x5_KHR;
        if (p === RGBA_ASTC_6x6_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR : extension.COMPRESSED_RGBA_ASTC_6x6_KHR;
        if (p === RGBA_ASTC_8x5_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR : extension.COMPRESSED_RGBA_ASTC_8x5_KHR;
        if (p === RGBA_ASTC_8x6_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR : extension.COMPRESSED_RGBA_ASTC_8x6_KHR;
        if (p === RGBA_ASTC_8x8_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR : extension.COMPRESSED_RGBA_ASTC_8x8_KHR;
        if (p === RGBA_ASTC_10x5_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR : extension.COMPRESSED_RGBA_ASTC_10x5_KHR;
        if (p === RGBA_ASTC_10x6_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR : extension.COMPRESSED_RGBA_ASTC_10x6_KHR;
        if (p === RGBA_ASTC_10x8_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR : extension.COMPRESSED_RGBA_ASTC_10x8_KHR;
        if (p === RGBA_ASTC_10x10_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR : extension.COMPRESSED_RGBA_ASTC_10x10_KHR;
        if (p === RGBA_ASTC_12x10_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR : extension.COMPRESSED_RGBA_ASTC_12x10_KHR;
        if (p === RGBA_ASTC_12x12_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR : extension.COMPRESSED_RGBA_ASTC_12x12_KHR;
      } else {
        return null;
      }
    }
    if (p === RGBA_BPTC_Format || p === RGB_BPTC_SIGNED_Format || p === RGB_BPTC_UNSIGNED_Format) {
      extension = extensions.get("EXT_texture_compression_bptc");
      if (extension !== null) {
        if (p === RGBA_BPTC_Format) return transfer === SRGBTransfer ? extension.COMPRESSED_SRGB_ALPHA_BPTC_UNORM_EXT : extension.COMPRESSED_RGBA_BPTC_UNORM_EXT;
        if (p === RGB_BPTC_SIGNED_Format) return extension.COMPRESSED_RGB_BPTC_SIGNED_FLOAT_EXT;
        if (p === RGB_BPTC_UNSIGNED_Format) return extension.COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT;
      } else {
        return null;
      }
    }
    if (p === RED_RGTC1_Format || p === SIGNED_RED_RGTC1_Format || p === RED_GREEN_RGTC2_Format || p === SIGNED_RED_GREEN_RGTC2_Format) {
      extension = extensions.get("EXT_texture_compression_rgtc");
      if (extension !== null) {
        if (p === RGBA_BPTC_Format) return extension.COMPRESSED_RED_RGTC1_EXT;
        if (p === SIGNED_RED_RGTC1_Format) return extension.COMPRESSED_SIGNED_RED_RGTC1_EXT;
        if (p === RED_GREEN_RGTC2_Format) return extension.COMPRESSED_RED_GREEN_RGTC2_EXT;
        if (p === SIGNED_RED_GREEN_RGTC2_Format) return extension.COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT;
      } else {
        return null;
      }
    }
    if (p === UnsignedInt248Type) return gl.UNSIGNED_INT_24_8;
    return gl[p] !== void 0 ? gl[p] : null;
  }
  return { convert };
}
var _moveEvent = { type: "move" };
var WebXRController = class {
  constructor() {
    this._targetRay = null;
    this._grip = null;
    this._hand = null;
  }
  getHandSpace() {
    if (this._hand === null) {
      this._hand = new Group();
      this._hand.matrixAutoUpdate = false;
      this._hand.visible = false;
      this._hand.joints = {};
      this._hand.inputState = { pinching: false };
    }
    return this._hand;
  }
  getTargetRaySpace() {
    if (this._targetRay === null) {
      this._targetRay = new Group();
      this._targetRay.matrixAutoUpdate = false;
      this._targetRay.visible = false;
      this._targetRay.hasLinearVelocity = false;
      this._targetRay.linearVelocity = new Vector3();
      this._targetRay.hasAngularVelocity = false;
      this._targetRay.angularVelocity = new Vector3();
    }
    return this._targetRay;
  }
  getGripSpace() {
    if (this._grip === null) {
      this._grip = new Group();
      this._grip.matrixAutoUpdate = false;
      this._grip.visible = false;
      this._grip.hasLinearVelocity = false;
      this._grip.linearVelocity = new Vector3();
      this._grip.hasAngularVelocity = false;
      this._grip.angularVelocity = new Vector3();
    }
    return this._grip;
  }
  dispatchEvent(event) {
    if (this._targetRay !== null) {
      this._targetRay.dispatchEvent(event);
    }
    if (this._grip !== null) {
      this._grip.dispatchEvent(event);
    }
    if (this._hand !== null) {
      this._hand.dispatchEvent(event);
    }
    return this;
  }
  connect(inputSource) {
    if (inputSource && inputSource.hand) {
      const hand = this._hand;
      if (hand) {
        for (const inputjoint of inputSource.hand.values()) {
          this._getHandJoint(hand, inputjoint);
        }
      }
    }
    this.dispatchEvent({ type: "connected", data: inputSource });
    return this;
  }
  disconnect(inputSource) {
    this.dispatchEvent({ type: "disconnected", data: inputSource });
    if (this._targetRay !== null) {
      this._targetRay.visible = false;
    }
    if (this._grip !== null) {
      this._grip.visible = false;
    }
    if (this._hand !== null) {
      this._hand.visible = false;
    }
    return this;
  }
  update(inputSource, frame, referenceSpace) {
    let inputPose = null;
    let gripPose = null;
    let handPose = null;
    const targetRay = this._targetRay;
    const grip = this._grip;
    const hand = this._hand;
    if (inputSource && frame.session.visibilityState !== "visible-blurred") {
      if (hand && inputSource.hand) {
        handPose = true;
        for (const inputjoint of inputSource.hand.values()) {
          const jointPose = frame.getJointPose(inputjoint, referenceSpace);
          const joint = this._getHandJoint(hand, inputjoint);
          if (jointPose !== null) {
            joint.matrix.fromArray(jointPose.transform.matrix);
            joint.matrix.decompose(joint.position, joint.rotation, joint.scale);
            joint.matrixWorldNeedsUpdate = true;
            joint.jointRadius = jointPose.radius;
          }
          joint.visible = jointPose !== null;
        }
        const indexTip = hand.joints["index-finger-tip"];
        const thumbTip = hand.joints["thumb-tip"];
        const distance = indexTip.position.distanceTo(thumbTip.position);
        const distanceToPinch = 0.02;
        const threshold = 5e-3;
        if (hand.inputState.pinching && distance > distanceToPinch + threshold) {
          hand.inputState.pinching = false;
          this.dispatchEvent({
            type: "pinchend",
            handedness: inputSource.handedness,
            target: this
          });
        } else if (!hand.inputState.pinching && distance <= distanceToPinch - threshold) {
          hand.inputState.pinching = true;
          this.dispatchEvent({
            type: "pinchstart",
            handedness: inputSource.handedness,
            target: this
          });
        }
      } else {
        if (grip !== null && inputSource.gripSpace) {
          gripPose = frame.getPose(inputSource.gripSpace, referenceSpace);
          if (gripPose !== null) {
            grip.matrix.fromArray(gripPose.transform.matrix);
            grip.matrix.decompose(grip.position, grip.rotation, grip.scale);
            grip.matrixWorldNeedsUpdate = true;
            if (gripPose.linearVelocity) {
              grip.hasLinearVelocity = true;
              grip.linearVelocity.copy(gripPose.linearVelocity);
            } else {
              grip.hasLinearVelocity = false;
            }
            if (gripPose.angularVelocity) {
              grip.hasAngularVelocity = true;
              grip.angularVelocity.copy(gripPose.angularVelocity);
            } else {
              grip.hasAngularVelocity = false;
            }
          }
        }
      }
      if (targetRay !== null) {
        inputPose = frame.getPose(inputSource.targetRaySpace, referenceSpace);
        if (inputPose === null && gripPose !== null) {
          inputPose = gripPose;
        }
        if (inputPose !== null) {
          targetRay.matrix.fromArray(inputPose.transform.matrix);
          targetRay.matrix.decompose(targetRay.position, targetRay.rotation, targetRay.scale);
          targetRay.matrixWorldNeedsUpdate = true;
          if (inputPose.linearVelocity) {
            targetRay.hasLinearVelocity = true;
            targetRay.linearVelocity.copy(inputPose.linearVelocity);
          } else {
            targetRay.hasLinearVelocity = false;
          }
          if (inputPose.angularVelocity) {
            targetRay.hasAngularVelocity = true;
            targetRay.angularVelocity.copy(inputPose.angularVelocity);
          } else {
            targetRay.hasAngularVelocity = false;
          }
          this.dispatchEvent(_moveEvent);
        }
      }
    }
    if (targetRay !== null) {
      targetRay.visible = inputPose !== null;
    }
    if (grip !== null) {
      grip.visible = gripPose !== null;
    }
    if (hand !== null) {
      hand.visible = handPose !== null;
    }
    return this;
  }
  // private method
  _getHandJoint(hand, inputjoint) {
    if (hand.joints[inputjoint.jointName] === void 0) {
      const joint = new Group();
      joint.matrixAutoUpdate = false;
      joint.visible = false;
      hand.joints[inputjoint.jointName] = joint;
      hand.add(joint);
    }
    return hand.joints[inputjoint.jointName];
  }
};
var _occlusion_vertex = `
void main() {

	gl_Position = vec4( position, 1.0 );

}`;
var _occlusion_fragment = `
uniform sampler2DArray depthColor;
uniform float depthWidth;
uniform float depthHeight;

void main() {

	vec2 coord = vec2( gl_FragCoord.x / depthWidth, gl_FragCoord.y / depthHeight );

	if ( coord.x >= 1.0 ) {

		gl_FragDepth = texture( depthColor, vec3( coord.x - 1.0, coord.y, 1 ) ).r;

	} else {

		gl_FragDepth = texture( depthColor, vec3( coord.x, coord.y, 0 ) ).r;

	}

}`;
var WebXRDepthSensing = class {
  constructor() {
    this.texture = null;
    this.mesh = null;
    this.depthNear = 0;
    this.depthFar = 0;
  }
  init(renderer, depthData, renderState) {
    if (this.texture === null) {
      const texture = new Texture();
      const texProps = renderer.properties.get(texture);
      texProps.__webglTexture = depthData.texture;
      if (depthData.depthNear != renderState.depthNear || depthData.depthFar != renderState.depthFar) {
        this.depthNear = depthData.depthNear;
        this.depthFar = depthData.depthFar;
      }
      this.texture = texture;
    }
  }
  getMesh(cameraXR) {
    if (this.texture !== null) {
      if (this.mesh === null) {
        const viewport = cameraXR.cameras[0].viewport;
        const material = new ShaderMaterial({
          vertexShader: _occlusion_vertex,
          fragmentShader: _occlusion_fragment,
          uniforms: {
            depthColor: { value: this.texture },
            depthWidth: { value: viewport.z },
            depthHeight: { value: viewport.w }
          }
        });
        this.mesh = new Mesh(new PlaneGeometry(20, 20), material);
      }
    }
    return this.mesh;
  }
  reset() {
    this.texture = null;
    this.mesh = null;
  }
  getDepthTexture() {
    return this.texture;
  }
};
var WebXRManager = class extends EventDispatcher {
  constructor(renderer, gl) {
    super();
    const scope = this;
    let session = null;
    let framebufferScaleFactor = 1;
    let referenceSpace = null;
    let referenceSpaceType = "local-floor";
    let foveation = 1;
    let customReferenceSpace = null;
    let pose = null;
    let glBinding = null;
    let glProjLayer = null;
    let glBaseLayer = null;
    let xrFrame = null;
    const depthSensing = new WebXRDepthSensing();
    const attributes = gl.getContextAttributes();
    let initialRenderTarget = null;
    let newRenderTarget = null;
    const controllers = [];
    const controllerInputSources = [];
    const currentSize = new Vector2();
    let currentPixelRatio = null;
    const cameraL = new PerspectiveCamera();
    cameraL.viewport = new Vector4();
    const cameraR = new PerspectiveCamera();
    cameraR.viewport = new Vector4();
    const cameras = [cameraL, cameraR];
    const cameraXR = new ArrayCamera();
    let _currentDepthNear = null;
    let _currentDepthFar = null;
    this.cameraAutoUpdate = true;
    this.enabled = false;
    this.isPresenting = false;
    this.getController = function(index) {
      let controller = controllers[index];
      if (controller === void 0) {
        controller = new WebXRController();
        controllers[index] = controller;
      }
      return controller.getTargetRaySpace();
    };
    this.getControllerGrip = function(index) {
      let controller = controllers[index];
      if (controller === void 0) {
        controller = new WebXRController();
        controllers[index] = controller;
      }
      return controller.getGripSpace();
    };
    this.getHand = function(index) {
      let controller = controllers[index];
      if (controller === void 0) {
        controller = new WebXRController();
        controllers[index] = controller;
      }
      return controller.getHandSpace();
    };
    function onSessionEvent(event) {
      const controllerIndex = controllerInputSources.indexOf(event.inputSource);
      if (controllerIndex === -1) {
        return;
      }
      const controller = controllers[controllerIndex];
      if (controller !== void 0) {
        controller.update(event.inputSource, event.frame, customReferenceSpace || referenceSpace);
        controller.dispatchEvent({ type: event.type, data: event.inputSource });
      }
    }
    function onSessionEnd() {
      session.removeEventListener("select", onSessionEvent);
      session.removeEventListener("selectstart", onSessionEvent);
      session.removeEventListener("selectend", onSessionEvent);
      session.removeEventListener("squeeze", onSessionEvent);
      session.removeEventListener("squeezestart", onSessionEvent);
      session.removeEventListener("squeezeend", onSessionEvent);
      session.removeEventListener("end", onSessionEnd);
      session.removeEventListener("inputsourceschange", onInputSourcesChange);
      for (let i = 0; i < controllers.length; i++) {
        const inputSource = controllerInputSources[i];
        if (inputSource === null) continue;
        controllerInputSources[i] = null;
        controllers[i].disconnect(inputSource);
      }
      _currentDepthNear = null;
      _currentDepthFar = null;
      depthSensing.reset();
      renderer.setRenderTarget(initialRenderTarget);
      glBaseLayer = null;
      glProjLayer = null;
      glBinding = null;
      session = null;
      newRenderTarget = null;
      animation.stop();
      scope.isPresenting = false;
      renderer.setPixelRatio(currentPixelRatio);
      renderer.setSize(currentSize.width, currentSize.height, false);
      scope.dispatchEvent({ type: "sessionend" });
    }
    this.setFramebufferScaleFactor = function(value) {
      framebufferScaleFactor = value;
      if (scope.isPresenting === true) {
        console.warn("THREE.WebXRManager: Cannot change framebuffer scale while presenting.");
      }
    };
    this.setReferenceSpaceType = function(value) {
      referenceSpaceType = value;
      if (scope.isPresenting === true) {
        console.warn("THREE.WebXRManager: Cannot change reference space type while presenting.");
      }
    };
    this.getReferenceSpace = function() {
      return customReferenceSpace || referenceSpace;
    };
    this.setReferenceSpace = function(space) {
      customReferenceSpace = space;
    };
    this.getBaseLayer = function() {
      return glProjLayer !== null ? glProjLayer : glBaseLayer;
    };
    this.getBinding = function() {
      return glBinding;
    };
    this.getFrame = function() {
      return xrFrame;
    };
    this.getSession = function() {
      return session;
    };
    this.setSession = async function(value) {
      session = value;
      if (session !== null) {
        initialRenderTarget = renderer.getRenderTarget();
        session.addEventListener("select", onSessionEvent);
        session.addEventListener("selectstart", onSessionEvent);
        session.addEventListener("selectend", onSessionEvent);
        session.addEventListener("squeeze", onSessionEvent);
        session.addEventListener("squeezestart", onSessionEvent);
        session.addEventListener("squeezeend", onSessionEvent);
        session.addEventListener("end", onSessionEnd);
        session.addEventListener("inputsourceschange", onInputSourcesChange);
        if (attributes.xrCompatible !== true) {
          await gl.makeXRCompatible();
        }
        currentPixelRatio = renderer.getPixelRatio();
        renderer.getSize(currentSize);
        if (session.renderState.layers === void 0) {
          const layerInit = {
            antialias: attributes.antialias,
            alpha: true,
            depth: attributes.depth,
            stencil: attributes.stencil,
            framebufferScaleFactor
          };
          glBaseLayer = new XRWebGLLayer(session, gl, layerInit);
          session.updateRenderState({ baseLayer: glBaseLayer });
          renderer.setPixelRatio(1);
          renderer.setSize(glBaseLayer.framebufferWidth, glBaseLayer.framebufferHeight, false);
          newRenderTarget = new WebGLRenderTarget(
            glBaseLayer.framebufferWidth,
            glBaseLayer.framebufferHeight,
            {
              format: RGBAFormat,
              type: UnsignedByteType,
              colorSpace: renderer.outputColorSpace,
              stencilBuffer: attributes.stencil
            }
          );
        } else {
          let depthFormat = null;
          let depthType = null;
          let glDepthFormat = null;
          if (attributes.depth) {
            glDepthFormat = attributes.stencil ? gl.DEPTH24_STENCIL8 : gl.DEPTH_COMPONENT24;
            depthFormat = attributes.stencil ? DepthStencilFormat : DepthFormat;
            depthType = attributes.stencil ? UnsignedInt248Type : UnsignedIntType;
          }
          const projectionlayerInit = {
            colorFormat: gl.RGBA8,
            depthFormat: glDepthFormat,
            scaleFactor: framebufferScaleFactor
          };
          glBinding = new XRWebGLBinding(session, gl);
          glProjLayer = glBinding.createProjectionLayer(projectionlayerInit);
          session.updateRenderState({ layers: [glProjLayer] });
          renderer.setPixelRatio(1);
          renderer.setSize(glProjLayer.textureWidth, glProjLayer.textureHeight, false);
          newRenderTarget = new WebGLRenderTarget(
            glProjLayer.textureWidth,
            glProjLayer.textureHeight,
            {
              format: RGBAFormat,
              type: UnsignedByteType,
              depthTexture: new DepthTexture(glProjLayer.textureWidth, glProjLayer.textureHeight, depthType, void 0, void 0, void 0, void 0, void 0, void 0, depthFormat),
              stencilBuffer: attributes.stencil,
              colorSpace: renderer.outputColorSpace,
              samples: attributes.antialias ? 4 : 0,
              resolveDepthBuffer: glProjLayer.ignoreDepthValues === false
            }
          );
        }
        newRenderTarget.isXRRenderTarget = true;
        this.setFoveation(foveation);
        customReferenceSpace = null;
        referenceSpace = await session.requestReferenceSpace(referenceSpaceType);
        animation.setContext(session);
        animation.start();
        scope.isPresenting = true;
        scope.dispatchEvent({ type: "sessionstart" });
      }
    };
    this.getEnvironmentBlendMode = function() {
      if (session !== null) {
        return session.environmentBlendMode;
      }
    };
    this.getDepthTexture = function() {
      return depthSensing.getDepthTexture();
    };
    function onInputSourcesChange(event) {
      for (let i = 0; i < event.removed.length; i++) {
        const inputSource = event.removed[i];
        const index = controllerInputSources.indexOf(inputSource);
        if (index >= 0) {
          controllerInputSources[index] = null;
          controllers[index].disconnect(inputSource);
        }
      }
      for (let i = 0; i < event.added.length; i++) {
        const inputSource = event.added[i];
        let controllerIndex = controllerInputSources.indexOf(inputSource);
        if (controllerIndex === -1) {
          for (let i2 = 0; i2 < controllers.length; i2++) {
            if (i2 >= controllerInputSources.length) {
              controllerInputSources.push(inputSource);
              controllerIndex = i2;
              break;
            } else if (controllerInputSources[i2] === null) {
              controllerInputSources[i2] = inputSource;
              controllerIndex = i2;
              break;
            }
          }
          if (controllerIndex === -1) break;
        }
        const controller = controllers[controllerIndex];
        if (controller) {
          controller.connect(inputSource);
        }
      }
    }
    const cameraLPos = new Vector3();
    const cameraRPos = new Vector3();
    function setProjectionFromUnion(camera, cameraL2, cameraR2) {
      cameraLPos.setFromMatrixPosition(cameraL2.matrixWorld);
      cameraRPos.setFromMatrixPosition(cameraR2.matrixWorld);
      const ipd = cameraLPos.distanceTo(cameraRPos);
      const projL = cameraL2.projectionMatrix.elements;
      const projR = cameraR2.projectionMatrix.elements;
      const near = projL[14] / (projL[10] - 1);
      const far = projL[14] / (projL[10] + 1);
      const topFov = (projL[9] + 1) / projL[5];
      const bottomFov = (projL[9] - 1) / projL[5];
      const leftFov = (projL[8] - 1) / projL[0];
      const rightFov = (projR[8] + 1) / projR[0];
      const left = near * leftFov;
      const right = near * rightFov;
      const zOffset = ipd / (-leftFov + rightFov);
      const xOffset = zOffset * -leftFov;
      cameraL2.matrixWorld.decompose(camera.position, camera.quaternion, camera.scale);
      camera.translateX(xOffset);
      camera.translateZ(zOffset);
      camera.matrixWorld.compose(camera.position, camera.quaternion, camera.scale);
      camera.matrixWorldInverse.copy(camera.matrixWorld).invert();
      if (projL[10] === -1) {
        camera.projectionMatrix.copy(cameraL2.projectionMatrix);
        camera.projectionMatrixInverse.copy(cameraL2.projectionMatrixInverse);
      } else {
        const near2 = near + zOffset;
        const far2 = far + zOffset;
        const left2 = left - xOffset;
        const right2 = right + (ipd - xOffset);
        const top2 = topFov * far / far2 * near2;
        const bottom2 = bottomFov * far / far2 * near2;
        camera.projectionMatrix.makePerspective(left2, right2, top2, bottom2, near2, far2);
        camera.projectionMatrixInverse.copy(camera.projectionMatrix).invert();
      }
    }
    function updateCamera(camera, parent) {
      if (parent === null) {
        camera.matrixWorld.copy(camera.matrix);
      } else {
        camera.matrixWorld.multiplyMatrices(parent.matrixWorld, camera.matrix);
      }
      camera.matrixWorldInverse.copy(camera.matrixWorld).invert();
    }
    this.updateCamera = function(camera) {
      if (session === null) return;
      let depthNear = camera.near;
      let depthFar = camera.far;
      if (depthSensing.texture !== null) {
        if (depthSensing.depthNear > 0) depthNear = depthSensing.depthNear;
        if (depthSensing.depthFar > 0) depthFar = depthSensing.depthFar;
      }
      cameraXR.near = cameraR.near = cameraL.near = depthNear;
      cameraXR.far = cameraR.far = cameraL.far = depthFar;
      if (_currentDepthNear !== cameraXR.near || _currentDepthFar !== cameraXR.far) {
        session.updateRenderState({
          depthNear: cameraXR.near,
          depthFar: cameraXR.far
        });
        _currentDepthNear = cameraXR.near;
        _currentDepthFar = cameraXR.far;
      }
      cameraL.layers.mask = camera.layers.mask | 2;
      cameraR.layers.mask = camera.layers.mask | 4;
      cameraXR.layers.mask = cameraL.layers.mask | cameraR.layers.mask;
      const parent = camera.parent;
      const cameras2 = cameraXR.cameras;
      updateCamera(cameraXR, parent);
      for (let i = 0; i < cameras2.length; i++) {
        updateCamera(cameras2[i], parent);
      }
      if (cameras2.length === 2) {
        setProjectionFromUnion(cameraXR, cameraL, cameraR);
      } else {
        cameraXR.projectionMatrix.copy(cameraL.projectionMatrix);
      }
      updateUserCamera(camera, cameraXR, parent);
    };
    function updateUserCamera(camera, cameraXR2, parent) {
      if (parent === null) {
        camera.matrix.copy(cameraXR2.matrixWorld);
      } else {
        camera.matrix.copy(parent.matrixWorld);
        camera.matrix.invert();
        camera.matrix.multiply(cameraXR2.matrixWorld);
      }
      camera.matrix.decompose(camera.position, camera.quaternion, camera.scale);
      camera.updateMatrixWorld(true);
      camera.projectionMatrix.copy(cameraXR2.projectionMatrix);
      camera.projectionMatrixInverse.copy(cameraXR2.projectionMatrixInverse);
      if (camera.isPerspectiveCamera) {
        camera.fov = RAD2DEG * 2 * Math.atan(1 / camera.projectionMatrix.elements[5]);
        camera.zoom = 1;
      }
    }
    this.getCamera = function() {
      return cameraXR;
    };
    this.getFoveation = function() {
      if (glProjLayer === null && glBaseLayer === null) {
        return void 0;
      }
      return foveation;
    };
    this.setFoveation = function(value) {
      foveation = value;
      if (glProjLayer !== null) {
        glProjLayer.fixedFoveation = value;
      }
      if (glBaseLayer !== null && glBaseLayer.fixedFoveation !== void 0) {
        glBaseLayer.fixedFoveation = value;
      }
    };
    this.hasDepthSensing = function() {
      return depthSensing.texture !== null;
    };
    this.getDepthSensingMesh = function() {
      return depthSensing.getMesh(cameraXR);
    };
    let onAnimationFrameCallback = null;
    function onAnimationFrame(time, frame) {
      pose = frame.getViewerPose(customReferenceSpace || referenceSpace);
      xrFrame = frame;
      if (pose !== null) {
        const views = pose.views;
        if (glBaseLayer !== null) {
          renderer.setRenderTargetFramebuffer(newRenderTarget, glBaseLayer.framebuffer);
          renderer.setRenderTarget(newRenderTarget);
        }
        let cameraXRNeedsUpdate = false;
        if (views.length !== cameraXR.cameras.length) {
          cameraXR.cameras.length = 0;
          cameraXRNeedsUpdate = true;
        }
        for (let i = 0; i < views.length; i++) {
          const view = views[i];
          let viewport = null;
          if (glBaseLayer !== null) {
            viewport = glBaseLayer.getViewport(view);
          } else {
            const glSubImage = glBinding.getViewSubImage(glProjLayer, view);
            viewport = glSubImage.viewport;
            if (i === 0) {
              renderer.setRenderTargetTextures(
                newRenderTarget,
                glSubImage.colorTexture,
                glProjLayer.ignoreDepthValues ? void 0 : glSubImage.depthStencilTexture
              );
              renderer.setRenderTarget(newRenderTarget);
            }
          }
          let camera = cameras[i];
          if (camera === void 0) {
            camera = new PerspectiveCamera();
            camera.layers.enable(i);
            camera.viewport = new Vector4();
            cameras[i] = camera;
          }
          camera.matrix.fromArray(view.transform.matrix);
          camera.matrix.decompose(camera.position, camera.quaternion, camera.scale);
          camera.projectionMatrix.fromArray(view.projectionMatrix);
          camera.projectionMatrixInverse.copy(camera.projectionMatrix).invert();
          camera.viewport.set(viewport.x, viewport.y, viewport.width, viewport.height);
          if (i === 0) {
            cameraXR.matrix.copy(camera.matrix);
            cameraXR.matrix.decompose(cameraXR.position, cameraXR.quaternion, cameraXR.scale);
          }
          if (cameraXRNeedsUpdate === true) {
            cameraXR.cameras.push(camera);
          }
        }
        const enabledFeatures = session.enabledFeatures;
        if (enabledFeatures && enabledFeatures.includes("depth-sensing")) {
          const depthData = glBinding.getDepthInformation(views[0]);
          if (depthData && depthData.isValid && depthData.texture) {
            depthSensing.init(renderer, depthData, session.renderState);
          }
        }
      }
      for (let i = 0; i < controllers.length; i++) {
        const inputSource = controllerInputSources[i];
        const controller = controllers[i];
        if (inputSource !== null && controller !== void 0) {
          controller.update(inputSource, frame, customReferenceSpace || referenceSpace);
        }
      }
      if (onAnimationFrameCallback) onAnimationFrameCallback(time, frame);
      if (frame.detectedPlanes) {
        scope.dispatchEvent({ type: "planesdetected", data: frame });
      }
      xrFrame = null;
    }
    const animation = new WebGLAnimation();
    animation.setAnimationLoop(onAnimationFrame);
    this.setAnimationLoop = function(callback) {
      onAnimationFrameCallback = callback;
    };
    this.dispose = function() {
    };
  }
};
var _e1 = /* @__PURE__ */ new Euler();
var _m12 = /* @__PURE__ */ new Matrix4();
function WebGLMaterials(renderer, properties) {
  function refreshTransformUniform(map, uniform) {
    if (map.matrixAutoUpdate === true) {
      map.updateMatrix();
    }
    uniform.value.copy(map.matrix);
  }
  function refreshFogUniforms(uniforms, fog) {
    fog.color.getRGB(uniforms.fogColor.value, getUnlitUniformColorSpace(renderer));
    if (fog.isFog) {
      uniforms.fogNear.value = fog.near;
      uniforms.fogFar.value = fog.far;
    } else if (fog.isFogExp2) {
      uniforms.fogDensity.value = fog.density;
    }
  }
  function refreshMaterialUniforms(uniforms, material, pixelRatio, height, transmissionRenderTarget) {
    if (material.isMeshBasicMaterial) {
      refreshUniformsCommon(uniforms, material);
    } else if (material.isMeshLambertMaterial) {
      refreshUniformsCommon(uniforms, material);
    } else if (material.isMeshToonMaterial) {
      refreshUniformsCommon(uniforms, material);
      refreshUniformsToon(uniforms, material);
    } else if (material.isMeshPhongMaterial) {
      refreshUniformsCommon(uniforms, material);
      refreshUniformsPhong(uniforms, material);
    } else if (material.isMeshStandardMaterial) {
      refreshUniformsCommon(uniforms, material);
      refreshUniformsStandard(uniforms, material);
      if (material.isMeshPhysicalMaterial) {
        refreshUniformsPhysical(uniforms, material, transmissionRenderTarget);
      }
    } else if (material.isMeshMatcapMaterial) {
      refreshUniformsCommon(uniforms, material);
      refreshUniformsMatcap(uniforms, material);
    } else if (material.isMeshDepthMaterial) {
      refreshUniformsCommon(uniforms, material);
    } else if (material.isMeshDistanceMaterial) {
      refreshUniformsCommon(uniforms, material);
      refreshUniformsDistance(uniforms, material);
    } else if (material.isMeshNormalMaterial) {
      refreshUniformsCommon(uniforms, material);
    } else if (material.isLineBasicMaterial) {
      refreshUniformsLine(uniforms, material);
      if (material.isLineDashedMaterial) {
        refreshUniformsDash(uniforms, material);
      }
    } else if (material.isPointsMaterial) {
      refreshUniformsPoints(uniforms, material, pixelRatio, height);
    } else if (material.isSpriteMaterial) {
      refreshUniformsSprites(uniforms, material);
    } else if (material.isShadowMaterial) {
      uniforms.color.value.copy(material.color);
      uniforms.opacity.value = material.opacity;
    } else if (material.isShaderMaterial) {
      material.uniformsNeedUpdate = false;
    }
  }
  function refreshUniformsCommon(uniforms, material) {
    uniforms.opacity.value = material.opacity;
    if (material.color) {
      uniforms.diffuse.value.copy(material.color);
    }
    if (material.emissive) {
      uniforms.emissive.value.copy(material.emissive).multiplyScalar(material.emissiveIntensity);
    }
    if (material.map) {
      uniforms.map.value = material.map;
      refreshTransformUniform(material.map, uniforms.mapTransform);
    }
    if (material.alphaMap) {
      uniforms.alphaMap.value = material.alphaMap;
      refreshTransformUniform(material.alphaMap, uniforms.alphaMapTransform);
    }
    if (material.bumpMap) {
      uniforms.bumpMap.value = material.bumpMap;
      refreshTransformUniform(material.bumpMap, uniforms.bumpMapTransform);
      uniforms.bumpScale.value = material.bumpScale;
      if (material.side === BackSide) {
        uniforms.bumpScale.value *= -1;
      }
    }
    if (material.normalMap) {
      uniforms.normalMap.value = material.normalMap;
      refreshTransformUniform(material.normalMap, uniforms.normalMapTransform);
      uniforms.normalScale.value.copy(material.normalScale);
      if (material.side === BackSide) {
        uniforms.normalScale.value.negate();
      }
    }
    if (material.displacementMap) {
      uniforms.displacementMap.value = material.displacementMap;
      refreshTransformUniform(material.displacementMap, uniforms.displacementMapTransform);
      uniforms.displacementScale.value = material.displacementScale;
      uniforms.displacementBias.value = material.displacementBias;
    }
    if (material.emissiveMap) {
      uniforms.emissiveMap.value = material.emissiveMap;
      refreshTransformUniform(material.emissiveMap, uniforms.emissiveMapTransform);
    }
    if (material.specularMap) {
      uniforms.specularMap.value = material.specularMap;
      refreshTransformUniform(material.specularMap, uniforms.specularMapTransform);
    }
    if (material.alphaTest > 0) {
      uniforms.alphaTest.value = material.alphaTest;
    }
    const materialProperties = properties.get(material);
    const envMap = materialProperties.envMap;
    const envMapRotation = materialProperties.envMapRotation;
    if (envMap) {
      uniforms.envMap.value = envMap;
      _e1.copy(envMapRotation);
      _e1.x *= -1;
      _e1.y *= -1;
      _e1.z *= -1;
      if (envMap.isCubeTexture && envMap.isRenderTargetTexture === false) {
        _e1.y *= -1;
        _e1.z *= -1;
      }
      uniforms.envMapRotation.value.setFromMatrix4(_m12.makeRotationFromEuler(_e1));
      uniforms.flipEnvMap.value = envMap.isCubeTexture && envMap.isRenderTargetTexture === false ? -1 : 1;
      uniforms.reflectivity.value = material.reflectivity;
      uniforms.ior.value = material.ior;
      uniforms.refractionRatio.value = material.refractionRatio;
    }
    if (material.lightMap) {
      uniforms.lightMap.value = material.lightMap;
      uniforms.lightMapIntensity.value = material.lightMapIntensity;
      refreshTransformUniform(material.lightMap, uniforms.lightMapTransform);
    }
    if (material.aoMap) {
      uniforms.aoMap.value = material.aoMap;
      uniforms.aoMapIntensity.value = material.aoMapIntensity;
      refreshTransformUniform(material.aoMap, uniforms.aoMapTransform);
    }
  }
  function refreshUniformsLine(uniforms, material) {
    uniforms.diffuse.value.copy(material.color);
    uniforms.opacity.value = material.opacity;
    if (material.map) {
      uniforms.map.value = material.map;
      refreshTransformUniform(material.map, uniforms.mapTransform);
    }
  }
  function refreshUniformsDash(uniforms, material) {
    uniforms.dashSize.value = material.dashSize;
    uniforms.totalSize.value = material.dashSize + material.gapSize;
    uniforms.scale.value = material.scale;
  }
  function refreshUniformsPoints(uniforms, material, pixelRatio, height) {
    uniforms.diffuse.value.copy(material.color);
    uniforms.opacity.value = material.opacity;
    uniforms.size.value = material.size * pixelRatio;
    uniforms.scale.value = height * 0.5;
    if (material.map) {
      uniforms.map.value = material.map;
      refreshTransformUniform(material.map, uniforms.uvTransform);
    }
    if (material.alphaMap) {
      uniforms.alphaMap.value = material.alphaMap;
      refreshTransformUniform(material.alphaMap, uniforms.alphaMapTransform);
    }
    if (material.alphaTest > 0) {
      uniforms.alphaTest.value = material.alphaTest;
    }
  }
  function refreshUniformsSprites(uniforms, material) {
    uniforms.diffuse.value.copy(material.color);
    uniforms.opacity.value = material.opacity;
    uniforms.rotation.value = material.rotation;
    if (material.map) {
      uniforms.map.value = material.map;
      refreshTransformUniform(material.map, uniforms.mapTransform);
    }
    if (material.alphaMap) {
      uniforms.alphaMap.value = material.alphaMap;
      refreshTransformUniform(material.alphaMap, uniforms.alphaMapTransform);
    }
    if (material.alphaTest > 0) {
      uniforms.alphaTest.value = material.alphaTest;
    }
  }
  function refreshUniformsPhong(uniforms, material) {
    uniforms.specular.value.copy(material.specular);
    uniforms.shininess.value = Math.max(material.shininess, 1e-4);
  }
  function refreshUniformsToon(uniforms, material) {
    if (material.gradientMap) {
      uniforms.gradientMap.value = material.gradientMap;
    }
  }
  function refreshUniformsStandard(uniforms, material) {
    uniforms.metalness.value = material.metalness;
    if (material.metalnessMap) {
      uniforms.metalnessMap.value = material.metalnessMap;
      refreshTransformUniform(material.metalnessMap, uniforms.metalnessMapTransform);
    }
    uniforms.roughness.value = material.roughness;
    if (material.roughnessMap) {
      uniforms.roughnessMap.value = material.roughnessMap;
      refreshTransformUniform(material.roughnessMap, uniforms.roughnessMapTransform);
    }
    if (material.envMap) {
      uniforms.envMapIntensity.value = material.envMapIntensity;
    }
  }
  function refreshUniformsPhysical(uniforms, material, transmissionRenderTarget) {
    uniforms.ior.value = material.ior;
    if (material.sheen > 0) {
      uniforms.sheenColor.value.copy(material.sheenColor).multiplyScalar(material.sheen);
      uniforms.sheenRoughness.value = material.sheenRoughness;
      if (material.sheenColorMap) {
        uniforms.sheenColorMap.value = material.sheenColorMap;
        refreshTransformUniform(material.sheenColorMap, uniforms.sheenColorMapTransform);
      }
      if (material.sheenRoughnessMap) {
        uniforms.sheenRoughnessMap.value = material.sheenRoughnessMap;
        refreshTransformUniform(material.sheenRoughnessMap, uniforms.sheenRoughnessMapTransform);
      }
    }
    if (material.clearcoat > 0) {
      uniforms.clearcoat.value = material.clearcoat;
      uniforms.clearcoatRoughness.value = material.clearcoatRoughness;
      if (material.clearcoatMap) {
        uniforms.clearcoatMap.value = material.clearcoatMap;
        refreshTransformUniform(material.clearcoatMap, uniforms.clearcoatMapTransform);
      }
      if (material.clearcoatRoughnessMap) {
        uniforms.clearcoatRoughnessMap.value = material.clearcoatRoughnessMap;
        refreshTransformUniform(material.clearcoatRoughnessMap, uniforms.clearcoatRoughnessMapTransform);
      }
      if (material.clearcoatNormalMap) {
        uniforms.clearcoatNormalMap.value = material.clearcoatNormalMap;
        refreshTransformUniform(material.clearcoatNormalMap, uniforms.clearcoatNormalMapTransform);
        uniforms.clearcoatNormalScale.value.copy(material.clearcoatNormalScale);
        if (material.side === BackSide) {
          uniforms.clearcoatNormalScale.value.negate();
        }
      }
    }
    if (material.dispersion > 0) {
      uniforms.dispersion.value = material.dispersion;
    }
    if (material.iridescence > 0) {
      uniforms.iridescence.value = material.iridescence;
      uniforms.iridescenceIOR.value = material.iridescenceIOR;
      uniforms.iridescenceThicknessMinimum.value = material.iridescenceThicknessRange[0];
      uniforms.iridescenceThicknessMaximum.value = material.iridescenceThicknessRange[1];
      if (material.iridescenceMap) {
        uniforms.iridescenceMap.value = material.iridescenceMap;
        refreshTransformUniform(material.iridescenceMap, uniforms.iridescenceMapTransform);
      }
      if (material.iridescenceThicknessMap) {
        uniforms.iridescenceThicknessMap.value = material.iridescenceThicknessMap;
        refreshTransformUniform(material.iridescenceThicknessMap, uniforms.iridescenceThicknessMapTransform);
      }
    }
    if (material.transmission > 0) {
      uniforms.transmission.value = material.transmission;
      uniforms.transmissionSamplerMap.value = transmissionRenderTarget.texture;
      uniforms.transmissionSamplerSize.value.set(transmissionRenderTarget.width, transmissionRenderTarget.height);
      if (material.transmissionMap) {
        uniforms.transmissionMap.value = material.transmissionMap;
        refreshTransformUniform(material.transmissionMap, uniforms.transmissionMapTransform);
      }
      uniforms.thickness.value = material.thickness;
      if (material.thicknessMap) {
        uniforms.thicknessMap.value = material.thicknessMap;
        refreshTransformUniform(material.thicknessMap, uniforms.thicknessMapTransform);
      }
      uniforms.attenuationDistance.value = material.attenuationDistance;
      uniforms.attenuationColor.value.copy(material.attenuationColor);
    }
    if (material.anisotropy > 0) {
      uniforms.anisotropyVector.value.set(material.anisotropy * Math.cos(material.anisotropyRotation), material.anisotropy * Math.sin(material.anisotropyRotation));
      if (material.anisotropyMap) {
        uniforms.anisotropyMap.value = material.anisotropyMap;
        refreshTransformUniform(material.anisotropyMap, uniforms.anisotropyMapTransform);
      }
    }
    uniforms.specularIntensity.value = material.specularIntensity;
    uniforms.specularColor.value.copy(material.specularColor);
    if (material.specularColorMap) {
      uniforms.specularColorMap.value = material.specularColorMap;
      refreshTransformUniform(material.specularColorMap, uniforms.specularColorMapTransform);
    }
    if (material.specularIntensityMap) {
      uniforms.specularIntensityMap.value = material.specularIntensityMap;
      refreshTransformUniform(material.specularIntensityMap, uniforms.specularIntensityMapTransform);
    }
  }
  function refreshUniformsMatcap(uniforms, material) {
    if (material.matcap) {
      uniforms.matcap.value = material.matcap;
    }
  }
  function refreshUniformsDistance(uniforms, material) {
    const light = properties.get(material).light;
    uniforms.referencePosition.value.setFromMatrixPosition(light.matrixWorld);
    uniforms.nearDistance.value = light.shadow.camera.near;
    uniforms.farDistance.value = light.shadow.camera.far;
  }
  return {
    refreshFogUniforms,
    refreshMaterialUniforms
  };
}
function WebGLUniformsGroups(gl, info, capabilities, state) {
  let buffers = {};
  let updateList = {};
  let allocatedBindingPoints = [];
  const maxBindingPoints = gl.getParameter(gl.MAX_UNIFORM_BUFFER_BINDINGS);
  function bind(uniformsGroup, program) {
    const webglProgram = program.program;
    state.uniformBlockBinding(uniformsGroup, webglProgram);
  }
  function update(uniformsGroup, program) {
    let buffer = buffers[uniformsGroup.id];
    if (buffer === void 0) {
      prepareUniformsGroup(uniformsGroup);
      buffer = createBuffer(uniformsGroup);
      buffers[uniformsGroup.id] = buffer;
      uniformsGroup.addEventListener("dispose", onUniformsGroupsDispose);
    }
    const webglProgram = program.program;
    state.updateUBOMapping(uniformsGroup, webglProgram);
    const frame = info.render.frame;
    if (updateList[uniformsGroup.id] !== frame) {
      updateBufferData(uniformsGroup);
      updateList[uniformsGroup.id] = frame;
    }
  }
  function createBuffer(uniformsGroup) {
    const bindingPointIndex = allocateBindingPointIndex();
    uniformsGroup.__bindingPointIndex = bindingPointIndex;
    const buffer = gl.createBuffer();
    const size = uniformsGroup.__size;
    const usage = uniformsGroup.usage;
    gl.bindBuffer(gl.UNIFORM_BUFFER, buffer);
    gl.bufferData(gl.UNIFORM_BUFFER, size, usage);
    gl.bindBuffer(gl.UNIFORM_BUFFER, null);
    gl.bindBufferBase(gl.UNIFORM_BUFFER, bindingPointIndex, buffer);
    return buffer;
  }
  function allocateBindingPointIndex() {
    for (let i = 0; i < maxBindingPoints; i++) {
      if (allocatedBindingPoints.indexOf(i) === -1) {
        allocatedBindingPoints.push(i);
        return i;
      }
    }
    console.error("THREE.WebGLRenderer: Maximum number of simultaneously usable uniforms groups reached.");
    return 0;
  }
  function updateBufferData(uniformsGroup) {
    const buffer = buffers[uniformsGroup.id];
    const uniforms = uniformsGroup.uniforms;
    const cache = uniformsGroup.__cache;
    gl.bindBuffer(gl.UNIFORM_BUFFER, buffer);
    for (let i = 0, il = uniforms.length; i < il; i++) {
      const uniformArray = Array.isArray(uniforms[i]) ? uniforms[i] : [uniforms[i]];
      for (let j = 0, jl = uniformArray.length; j < jl; j++) {
        const uniform = uniformArray[j];
        if (hasUniformChanged(uniform, i, j, cache) === true) {
          const offset = uniform.__offset;
          const values = Array.isArray(uniform.value) ? uniform.value : [uniform.value];
          let arrayOffset = 0;
          for (let k = 0; k < values.length; k++) {
            const value = values[k];
            const info2 = getUniformSize(value);
            if (typeof value === "number" || typeof value === "boolean") {
              uniform.__data[0] = value;
              gl.bufferSubData(gl.UNIFORM_BUFFER, offset + arrayOffset, uniform.__data);
            } else if (value.isMatrix3) {
              uniform.__data[0] = value.elements[0];
              uniform.__data[1] = value.elements[1];
              uniform.__data[2] = value.elements[2];
              uniform.__data[3] = 0;
              uniform.__data[4] = value.elements[3];
              uniform.__data[5] = value.elements[4];
              uniform.__data[6] = value.elements[5];
              uniform.__data[7] = 0;
              uniform.__data[8] = value.elements[6];
              uniform.__data[9] = value.elements[7];
              uniform.__data[10] = value.elements[8];
              uniform.__data[11] = 0;
            } else {
              value.toArray(uniform.__data, arrayOffset);
              arrayOffset += info2.storage / Float32Array.BYTES_PER_ELEMENT;
            }
          }
          gl.bufferSubData(gl.UNIFORM_BUFFER, offset, uniform.__data);
        }
      }
    }
    gl.bindBuffer(gl.UNIFORM_BUFFER, null);
  }
  function hasUniformChanged(uniform, index, indexArray, cache) {
    const value = uniform.value;
    const indexString = index + "_" + indexArray;
    if (cache[indexString] === void 0) {
      if (typeof value === "number" || typeof value === "boolean") {
        cache[indexString] = value;
      } else {
        cache[indexString] = value.clone();
      }
      return true;
    } else {
      const cachedObject = cache[indexString];
      if (typeof value === "number" || typeof value === "boolean") {
        if (cachedObject !== value) {
          cache[indexString] = value;
          return true;
        }
      } else {
        if (cachedObject.equals(value) === false) {
          cachedObject.copy(value);
          return true;
        }
      }
    }
    return false;
  }
  function prepareUniformsGroup(uniformsGroup) {
    const uniforms = uniformsGroup.uniforms;
    let offset = 0;
    const chunkSize = 16;
    for (let i = 0, l = uniforms.length; i < l; i++) {
      const uniformArray = Array.isArray(uniforms[i]) ? uniforms[i] : [uniforms[i]];
      for (let j = 0, jl = uniformArray.length; j < jl; j++) {
        const uniform = uniformArray[j];
        const values = Array.isArray(uniform.value) ? uniform.value : [uniform.value];
        for (let k = 0, kl = values.length; k < kl; k++) {
          const value = values[k];
          const info2 = getUniformSize(value);
          const chunkOffset2 = offset % chunkSize;
          const chunkPadding = chunkOffset2 % info2.boundary;
          const chunkStart = chunkOffset2 + chunkPadding;
          offset += chunkPadding;
          if (chunkStart !== 0 && chunkSize - chunkStart < info2.storage) {
            offset += chunkSize - chunkStart;
          }
          uniform.__data = new Float32Array(info2.storage / Float32Array.BYTES_PER_ELEMENT);
          uniform.__offset = offset;
          offset += info2.storage;
        }
      }
    }
    const chunkOffset = offset % chunkSize;
    if (chunkOffset > 0) offset += chunkSize - chunkOffset;
    uniformsGroup.__size = offset;
    uniformsGroup.__cache = {};
    return this;
  }
  function getUniformSize(value) {
    const info2 = {
      boundary: 0,
      // bytes
      storage: 0
      // bytes
    };
    if (typeof value === "number" || typeof value === "boolean") {
      info2.boundary = 4;
      info2.storage = 4;
    } else if (value.isVector2) {
      info2.boundary = 8;
      info2.storage = 8;
    } else if (value.isVector3 || value.isColor) {
      info2.boundary = 16;
      info2.storage = 12;
    } else if (value.isVector4) {
      info2.boundary = 16;
      info2.storage = 16;
    } else if (value.isMatrix3) {
      info2.boundary = 48;
      info2.storage = 48;
    } else if (value.isMatrix4) {
      info2.boundary = 64;
      info2.storage = 64;
    } else if (value.isTexture) {
      console.warn("THREE.WebGLRenderer: Texture samplers can not be part of an uniforms group.");
    } else {
      console.warn("THREE.WebGLRenderer: Unsupported uniform value type.", value);
    }
    return info2;
  }
  function onUniformsGroupsDispose(event) {
    const uniformsGroup = event.target;
    uniformsGroup.removeEventListener("dispose", onUniformsGroupsDispose);
    const index = allocatedBindingPoints.indexOf(uniformsGroup.__bindingPointIndex);
    allocatedBindingPoints.splice(index, 1);
    gl.deleteBuffer(buffers[uniformsGroup.id]);
    delete buffers[uniformsGroup.id];
    delete updateList[uniformsGroup.id];
  }
  function dispose() {
    for (const id in buffers) {
      gl.deleteBuffer(buffers[id]);
    }
    allocatedBindingPoints = [];
    buffers = {};
    updateList = {};
  }
  return {
    bind,
    update,
    dispose
  };
}
var WebGLRenderer = class {
  constructor(parameters = {}) {
    const {
      canvas = createCanvasElement(),
      context: context3 = null,
      depth = true,
      stencil = false,
      alpha = false,
      antialias = false,
      premultipliedAlpha = true,
      preserveDrawingBuffer = false,
      powerPreference = "default",
      failIfMajorPerformanceCaveat = false,
      reverseDepthBuffer = false
    } = parameters;
    this.isWebGLRenderer = true;
    let _alpha;
    if (context3 !== null) {
      if (typeof WebGLRenderingContext !== "undefined" && context3 instanceof WebGLRenderingContext) {
        throw new Error("THREE.WebGLRenderer: WebGL 1 is not supported since r163.");
      }
      _alpha = context3.getContextAttributes().alpha;
    } else {
      _alpha = alpha;
    }
    const uintClearColor = new Uint32Array(4);
    const intClearColor = new Int32Array(4);
    let currentRenderList = null;
    let currentRenderState = null;
    const renderListStack = [];
    const renderStateStack = [];
    this.domElement = canvas;
    this.debug = {
      /**
       * Enables error checking and reporting when shader programs are being compiled
       * @type {boolean}
       */
      checkShaderErrors: true,
      /**
       * Callback for custom error reporting.
       * @type {?Function}
       */
      onShaderError: null
    };
    this.autoClear = true;
    this.autoClearColor = true;
    this.autoClearDepth = true;
    this.autoClearStencil = true;
    this.sortObjects = true;
    this.clippingPlanes = [];
    this.localClippingEnabled = false;
    this._outputColorSpace = SRGBColorSpace;
    this.toneMapping = NoToneMapping;
    this.toneMappingExposure = 1;
    const _this = this;
    let _isContextLost = false;
    let _currentActiveCubeFace = 0;
    let _currentActiveMipmapLevel = 0;
    let _currentRenderTarget = null;
    let _currentMaterialId = -1;
    let _currentCamera = null;
    const _currentViewport = new Vector4();
    const _currentScissor = new Vector4();
    let _currentScissorTest = null;
    const _currentClearColor = new Color(0);
    let _currentClearAlpha = 0;
    let _width = canvas.width;
    let _height = canvas.height;
    let _pixelRatio = 1;
    let _opaqueSort = null;
    let _transparentSort = null;
    const _viewport = new Vector4(0, 0, _width, _height);
    const _scissor = new Vector4(0, 0, _width, _height);
    let _scissorTest = false;
    const _frustum = new Frustum();
    let _clippingEnabled = false;
    let _localClippingEnabled = false;
    const _currentProjectionMatrix = new Matrix4();
    const _projScreenMatrix2 = new Matrix4();
    const _vector32 = new Vector3();
    const _vector4 = new Vector4();
    const _emptyScene = { background: null, fog: null, environment: null, overrideMaterial: null, isScene: true };
    let _renderBackground = false;
    function getTargetPixelRatio() {
      return _currentRenderTarget === null ? _pixelRatio : 1;
    }
    let _gl = context3;
    function getContext(contextName, contextAttributes) {
      return canvas.getContext(contextName, contextAttributes);
    }
    try {
      const contextAttributes = {
        alpha: true,
        depth,
        stencil,
        antialias,
        premultipliedAlpha,
        preserveDrawingBuffer,
        powerPreference,
        failIfMajorPerformanceCaveat
      };
      if ("setAttribute" in canvas) canvas.setAttribute("data-engine", `three.js r${REVISION}`);
      canvas.addEventListener("webglcontextlost", onContextLost, false);
      canvas.addEventListener("webglcontextrestored", onContextRestore, false);
      canvas.addEventListener("webglcontextcreationerror", onContextCreationError, false);
      if (_gl === null) {
        const contextName = "webgl2";
        _gl = getContext(contextName, contextAttributes);
        if (_gl === null) {
          if (getContext(contextName)) {
            throw new Error("Error creating WebGL context with your selected attributes.");
          } else {
            throw new Error("Error creating WebGL context.");
          }
        }
      }
    } catch (error) {
      console.error("THREE.WebGLRenderer: " + error.message);
      throw error;
    }
    let extensions, capabilities, state, info;
    let properties, textures, cubemaps, cubeuvmaps, attributes, geometries, objects;
    let programCache, materials, renderLists, renderStates, clipping, shadowMap;
    let background, morphtargets, bufferRenderer, indexedBufferRenderer;
    let utils, bindingStates, uniformsGroups;
    function initGLContext() {
      extensions = new WebGLExtensions(_gl);
      extensions.init();
      utils = new WebGLUtils(_gl, extensions);
      capabilities = new WebGLCapabilities(_gl, extensions, parameters, utils);
      state = new WebGLState(_gl, extensions);
      if (capabilities.reverseDepthBuffer && reverseDepthBuffer) {
        state.buffers.depth.setReversed(true);
      }
      info = new WebGLInfo(_gl);
      properties = new WebGLProperties();
      textures = new WebGLTextures(_gl, extensions, state, properties, capabilities, utils, info);
      cubemaps = new WebGLCubeMaps(_this);
      cubeuvmaps = new WebGLCubeUVMaps(_this);
      attributes = new WebGLAttributes(_gl);
      bindingStates = new WebGLBindingStates(_gl, attributes);
      geometries = new WebGLGeometries(_gl, attributes, info, bindingStates);
      objects = new WebGLObjects(_gl, geometries, attributes, info);
      morphtargets = new WebGLMorphtargets(_gl, capabilities, textures);
      clipping = new WebGLClipping(properties);
      programCache = new WebGLPrograms(_this, cubemaps, cubeuvmaps, extensions, capabilities, bindingStates, clipping);
      materials = new WebGLMaterials(_this, properties);
      renderLists = new WebGLRenderLists();
      renderStates = new WebGLRenderStates(extensions);
      background = new WebGLBackground(_this, cubemaps, cubeuvmaps, state, objects, _alpha, premultipliedAlpha);
      shadowMap = new WebGLShadowMap(_this, objects, capabilities);
      uniformsGroups = new WebGLUniformsGroups(_gl, info, capabilities, state);
      bufferRenderer = new WebGLBufferRenderer(_gl, extensions, info);
      indexedBufferRenderer = new WebGLIndexedBufferRenderer(_gl, extensions, info);
      info.programs = programCache.programs;
      _this.capabilities = capabilities;
      _this.extensions = extensions;
      _this.properties = properties;
      _this.renderLists = renderLists;
      _this.shadowMap = shadowMap;
      _this.state = state;
      _this.info = info;
    }
    initGLContext();
    const xr = new WebXRManager(_this, _gl);
    this.xr = xr;
    this.getContext = function() {
      return _gl;
    };
    this.getContextAttributes = function() {
      return _gl.getContextAttributes();
    };
    this.forceContextLoss = function() {
      const extension = extensions.get("WEBGL_lose_context");
      if (extension) extension.loseContext();
    };
    this.forceContextRestore = function() {
      const extension = extensions.get("WEBGL_lose_context");
      if (extension) extension.restoreContext();
    };
    this.getPixelRatio = function() {
      return _pixelRatio;
    };
    this.setPixelRatio = function(value) {
      if (value === void 0) return;
      _pixelRatio = value;
      this.setSize(_width, _height, false);
    };
    this.getSize = function(target) {
      return target.set(_width, _height);
    };
    this.setSize = function(width, height, updateStyle = true) {
      if (xr.isPresenting) {
        console.warn("THREE.WebGLRenderer: Can't change size while VR device is presenting.");
        return;
      }
      _width = width;
      _height = height;
      canvas.width = Math.floor(width * _pixelRatio);
      canvas.height = Math.floor(height * _pixelRatio);
      if (updateStyle === true) {
        canvas.style.width = width + "px";
        canvas.style.height = height + "px";
      }
      this.setViewport(0, 0, width, height);
    };
    this.getDrawingBufferSize = function(target) {
      return target.set(_width * _pixelRatio, _height * _pixelRatio).floor();
    };
    this.setDrawingBufferSize = function(width, height, pixelRatio) {
      _width = width;
      _height = height;
      _pixelRatio = pixelRatio;
      canvas.width = Math.floor(width * pixelRatio);
      canvas.height = Math.floor(height * pixelRatio);
      this.setViewport(0, 0, width, height);
    };
    this.getCurrentViewport = function(target) {
      return target.copy(_currentViewport);
    };
    this.getViewport = function(target) {
      return target.copy(_viewport);
    };
    this.setViewport = function(x, y, width, height) {
      if (x.isVector4) {
        _viewport.set(x.x, x.y, x.z, x.w);
      } else {
        _viewport.set(x, y, width, height);
      }
      state.viewport(_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).round());
    };
    this.getScissor = function(target) {
      return target.copy(_scissor);
    };
    this.setScissor = function(x, y, width, height) {
      if (x.isVector4) {
        _scissor.set(x.x, x.y, x.z, x.w);
      } else {
        _scissor.set(x, y, width, height);
      }
      state.scissor(_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).round());
    };
    this.getScissorTest = function() {
      return _scissorTest;
    };
    this.setScissorTest = function(boolean) {
      state.setScissorTest(_scissorTest = boolean);
    };
    this.setOpaqueSort = function(method) {
      _opaqueSort = method;
    };
    this.setTransparentSort = function(method) {
      _transparentSort = method;
    };
    this.getClearColor = function(target) {
      return target.copy(background.getClearColor());
    };
    this.setClearColor = function() {
      background.setClearColor.apply(background, arguments);
    };
    this.getClearAlpha = function() {
      return background.getClearAlpha();
    };
    this.setClearAlpha = function() {
      background.setClearAlpha.apply(background, arguments);
    };
    this.clear = function(color = true, depth2 = true, stencil2 = true) {
      let bits = 0;
      if (color) {
        let isIntegerFormat = false;
        if (_currentRenderTarget !== null) {
          const targetFormat = _currentRenderTarget.texture.format;
          isIntegerFormat = targetFormat === RGBAIntegerFormat || targetFormat === RGIntegerFormat || targetFormat === RedIntegerFormat;
        }
        if (isIntegerFormat) {
          const targetType = _currentRenderTarget.texture.type;
          const isUnsignedType = targetType === UnsignedByteType || targetType === UnsignedIntType || targetType === UnsignedShortType || targetType === UnsignedInt248Type || targetType === UnsignedShort4444Type || targetType === UnsignedShort5551Type;
          const clearColor = background.getClearColor();
          const a = background.getClearAlpha();
          const r = clearColor.r;
          const g = clearColor.g;
          const b = clearColor.b;
          if (isUnsignedType) {
            uintClearColor[0] = r;
            uintClearColor[1] = g;
            uintClearColor[2] = b;
            uintClearColor[3] = a;
            _gl.clearBufferuiv(_gl.COLOR, 0, uintClearColor);
          } else {
            intClearColor[0] = r;
            intClearColor[1] = g;
            intClearColor[2] = b;
            intClearColor[3] = a;
            _gl.clearBufferiv(_gl.COLOR, 0, intClearColor);
          }
        } else {
          bits |= _gl.COLOR_BUFFER_BIT;
        }
      }
      if (depth2) {
        bits |= _gl.DEPTH_BUFFER_BIT;
      }
      if (stencil2) {
        bits |= _gl.STENCIL_BUFFER_BIT;
        this.state.buffers.stencil.setMask(4294967295);
      }
      _gl.clear(bits);
    };
    this.clearColor = function() {
      this.clear(true, false, false);
    };
    this.clearDepth = function() {
      this.clear(false, true, false);
    };
    this.clearStencil = function() {
      this.clear(false, false, true);
    };
    this.dispose = function() {
      canvas.removeEventListener("webglcontextlost", onContextLost, false);
      canvas.removeEventListener("webglcontextrestored", onContextRestore, false);
      canvas.removeEventListener("webglcontextcreationerror", onContextCreationError, false);
      background.dispose();
      renderLists.dispose();
      renderStates.dispose();
      properties.dispose();
      cubemaps.dispose();
      cubeuvmaps.dispose();
      objects.dispose();
      bindingStates.dispose();
      uniformsGroups.dispose();
      programCache.dispose();
      xr.dispose();
      xr.removeEventListener("sessionstart", onXRSessionStart);
      xr.removeEventListener("sessionend", onXRSessionEnd);
      animation.stop();
    };
    function onContextLost(event) {
      event.preventDefault();
      console.log("THREE.WebGLRenderer: Context Lost.");
      _isContextLost = true;
    }
    function onContextRestore() {
      console.log("THREE.WebGLRenderer: Context Restored.");
      _isContextLost = false;
      const infoAutoReset = info.autoReset;
      const shadowMapEnabled = shadowMap.enabled;
      const shadowMapAutoUpdate = shadowMap.autoUpdate;
      const shadowMapNeedsUpdate = shadowMap.needsUpdate;
      const shadowMapType = shadowMap.type;
      initGLContext();
      info.autoReset = infoAutoReset;
      shadowMap.enabled = shadowMapEnabled;
      shadowMap.autoUpdate = shadowMapAutoUpdate;
      shadowMap.needsUpdate = shadowMapNeedsUpdate;
      shadowMap.type = shadowMapType;
    }
    function onContextCreationError(event) {
      console.error("THREE.WebGLRenderer: A WebGL context could not be created. Reason: ", event.statusMessage);
    }
    function onMaterialDispose(event) {
      const material = event.target;
      material.removeEventListener("dispose", onMaterialDispose);
      deallocateMaterial(material);
    }
    function deallocateMaterial(material) {
      releaseMaterialProgramReferences(material);
      properties.remove(material);
    }
    function releaseMaterialProgramReferences(material) {
      const programs = properties.get(material).programs;
      if (programs !== void 0) {
        programs.forEach(function(program) {
          programCache.releaseProgram(program);
        });
        if (material.isShaderMaterial) {
          programCache.releaseShaderCache(material);
        }
      }
    }
    this.renderBufferDirect = function(camera, scene, geometry, material, object, group) {
      if (scene === null) scene = _emptyScene;
      const frontFaceCW = object.isMesh && object.matrixWorld.determinant() < 0;
      const program = setProgram(camera, scene, geometry, material, object);
      state.setMaterial(material, frontFaceCW);
      let index = geometry.index;
      let rangeFactor = 1;
      if (material.wireframe === true) {
        index = geometries.getWireframeAttribute(geometry);
        if (index === void 0) return;
        rangeFactor = 2;
      }
      const drawRange = geometry.drawRange;
      const position = geometry.attributes.position;
      let drawStart = drawRange.start * rangeFactor;
      let drawEnd = (drawRange.start + drawRange.count) * rangeFactor;
      if (group !== null) {
        drawStart = Math.max(drawStart, group.start * rangeFactor);
        drawEnd = Math.min(drawEnd, (group.start + group.count) * rangeFactor);
      }
      if (index !== null) {
        drawStart = Math.max(drawStart, 0);
        drawEnd = Math.min(drawEnd, index.count);
      } else if (position !== void 0 && position !== null) {
        drawStart = Math.max(drawStart, 0);
        drawEnd = Math.min(drawEnd, position.count);
      }
      const drawCount = drawEnd - drawStart;
      if (drawCount < 0 || drawCount === Infinity) return;
      bindingStates.setup(object, material, program, geometry, index);
      let attribute;
      let renderer = bufferRenderer;
      if (index !== null) {
        attribute = attributes.get(index);
        renderer = indexedBufferRenderer;
        renderer.setIndex(attribute);
      }
      if (object.isMesh) {
        if (material.wireframe === true) {
          state.setLineWidth(material.wireframeLinewidth * getTargetPixelRatio());
          renderer.setMode(_gl.LINES);
        } else {
          renderer.setMode(_gl.TRIANGLES);
        }
      } else if (object.isLine) {
        let lineWidth = material.linewidth;
        if (lineWidth === void 0) lineWidth = 1;
        state.setLineWidth(lineWidth * getTargetPixelRatio());
        if (object.isLineSegments) {
          renderer.setMode(_gl.LINES);
        } else if (object.isLineLoop) {
          renderer.setMode(_gl.LINE_LOOP);
        } else {
          renderer.setMode(_gl.LINE_STRIP);
        }
      } else if (object.isPoints) {
        renderer.setMode(_gl.POINTS);
      } else if (object.isSprite) {
        renderer.setMode(_gl.TRIANGLES);
      }
      if (object.isBatchedMesh) {
        if (object._multiDrawInstances !== null) {
          renderer.renderMultiDrawInstances(object._multiDrawStarts, object._multiDrawCounts, object._multiDrawCount, object._multiDrawInstances);
        } else {
          if (!extensions.get("WEBGL_multi_draw")) {
            const starts = object._multiDrawStarts;
            const counts = object._multiDrawCounts;
            const drawCount2 = object._multiDrawCount;
            const bytesPerElement = index ? attributes.get(index).bytesPerElement : 1;
            const uniforms = properties.get(material).currentProgram.getUniforms();
            for (let i = 0; i < drawCount2; i++) {
              uniforms.setValue(_gl, "_gl_DrawID", i);
              renderer.render(starts[i] / bytesPerElement, counts[i]);
            }
          } else {
            renderer.renderMultiDraw(object._multiDrawStarts, object._multiDrawCounts, object._multiDrawCount);
          }
        }
      } else if (object.isInstancedMesh) {
        renderer.renderInstances(drawStart, drawCount, object.count);
      } else if (geometry.isInstancedBufferGeometry) {
        const maxInstanceCount = geometry._maxInstanceCount !== void 0 ? geometry._maxInstanceCount : Infinity;
        const instanceCount = Math.min(geometry.instanceCount, maxInstanceCount);
        renderer.renderInstances(drawStart, drawCount, instanceCount);
      } else {
        renderer.render(drawStart, drawCount);
      }
    };
    function prepareMaterial(material, scene, object) {
      if (material.transparent === true && material.side === DoubleSide && material.forceSinglePass === false) {
        material.side = BackSide;
        material.needsUpdate = true;
        getProgram(material, scene, object);
        material.side = FrontSide;
        material.needsUpdate = true;
        getProgram(material, scene, object);
        material.side = DoubleSide;
      } else {
        getProgram(material, scene, object);
      }
    }
    this.compile = function(scene, camera, targetScene = null) {
      if (targetScene === null) targetScene = scene;
      currentRenderState = renderStates.get(targetScene);
      currentRenderState.init(camera);
      renderStateStack.push(currentRenderState);
      targetScene.traverseVisible(function(object) {
        if (object.isLight && object.layers.test(camera.layers)) {
          currentRenderState.pushLight(object);
          if (object.castShadow) {
            currentRenderState.pushShadow(object);
          }
        }
      });
      if (scene !== targetScene) {
        scene.traverseVisible(function(object) {
          if (object.isLight && object.layers.test(camera.layers)) {
            currentRenderState.pushLight(object);
            if (object.castShadow) {
              currentRenderState.pushShadow(object);
            }
          }
        });
      }
      currentRenderState.setupLights();
      const materials2 = /* @__PURE__ */ new Set();
      scene.traverse(function(object) {
        if (!(object.isMesh || object.isPoints || object.isLine || object.isSprite)) {
          return;
        }
        const material = object.material;
        if (material) {
          if (Array.isArray(material)) {
            for (let i = 0; i < material.length; i++) {
              const material2 = material[i];
              prepareMaterial(material2, targetScene, object);
              materials2.add(material2);
            }
          } else {
            prepareMaterial(material, targetScene, object);
            materials2.add(material);
          }
        }
      });
      renderStateStack.pop();
      currentRenderState = null;
      return materials2;
    };
    this.compileAsync = function(scene, camera, targetScene = null) {
      const materials2 = this.compile(scene, camera, targetScene);
      return new Promise((resolve) => {
        function checkMaterialsReady() {
          materials2.forEach(function(material) {
            const materialProperties = properties.get(material);
            const program = materialProperties.currentProgram;
            if (program.isReady()) {
              materials2.delete(material);
            }
          });
          if (materials2.size === 0) {
            resolve(scene);
            return;
          }
          setTimeout(checkMaterialsReady, 10);
        }
        if (extensions.get("KHR_parallel_shader_compile") !== null) {
          checkMaterialsReady();
        } else {
          setTimeout(checkMaterialsReady, 10);
        }
      });
    };
    let onAnimationFrameCallback = null;
    function onAnimationFrame(time) {
      if (onAnimationFrameCallback) onAnimationFrameCallback(time);
    }
    function onXRSessionStart() {
      animation.stop();
    }
    function onXRSessionEnd() {
      animation.start();
    }
    const animation = new WebGLAnimation();
    animation.setAnimationLoop(onAnimationFrame);
    if (typeof self !== "undefined") animation.setContext(self);
    this.setAnimationLoop = function(callback) {
      onAnimationFrameCallback = callback;
      xr.setAnimationLoop(callback);
      callback === null ? animation.stop() : animation.start();
    };
    xr.addEventListener("sessionstart", onXRSessionStart);
    xr.addEventListener("sessionend", onXRSessionEnd);
    this.render = function(scene, camera) {
      if (camera !== void 0 && camera.isCamera !== true) {
        console.error("THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.");
        return;
      }
      if (_isContextLost === true) return;
      if (scene.matrixWorldAutoUpdate === true) scene.updateMatrixWorld();
      if (camera.parent === null && camera.matrixWorldAutoUpdate === true) camera.updateMatrixWorld();
      if (xr.enabled === true && xr.isPresenting === true) {
        if (xr.cameraAutoUpdate === true) xr.updateCamera(camera);
        camera = xr.getCamera();
      }
      if (scene.isScene === true) scene.onBeforeRender(_this, scene, camera, _currentRenderTarget);
      currentRenderState = renderStates.get(scene, renderStateStack.length);
      currentRenderState.init(camera);
      renderStateStack.push(currentRenderState);
      _projScreenMatrix2.multiplyMatrices(camera.projectionMatrix, camera.matrixWorldInverse);
      _frustum.setFromProjectionMatrix(_projScreenMatrix2);
      _localClippingEnabled = this.localClippingEnabled;
      _clippingEnabled = clipping.init(this.clippingPlanes, _localClippingEnabled);
      currentRenderList = renderLists.get(scene, renderListStack.length);
      currentRenderList.init();
      renderListStack.push(currentRenderList);
      if (xr.enabled === true && xr.isPresenting === true) {
        const depthSensingMesh = _this.xr.getDepthSensingMesh();
        if (depthSensingMesh !== null) {
          projectObject(depthSensingMesh, camera, -Infinity, _this.sortObjects);
        }
      }
      projectObject(scene, camera, 0, _this.sortObjects);
      currentRenderList.finish();
      if (_this.sortObjects === true) {
        currentRenderList.sort(_opaqueSort, _transparentSort);
      }
      _renderBackground = xr.enabled === false || xr.isPresenting === false || xr.hasDepthSensing() === false;
      if (_renderBackground) {
        background.addToRenderList(currentRenderList, scene);
      }
      this.info.render.frame++;
      if (_clippingEnabled === true) clipping.beginShadows();
      const shadowsArray = currentRenderState.state.shadowsArray;
      shadowMap.render(shadowsArray, scene, camera);
      if (_clippingEnabled === true) clipping.endShadows();
      if (this.info.autoReset === true) this.info.reset();
      const opaqueObjects = currentRenderList.opaque;
      const transmissiveObjects = currentRenderList.transmissive;
      currentRenderState.setupLights();
      if (camera.isArrayCamera) {
        const cameras = camera.cameras;
        if (transmissiveObjects.length > 0) {
          for (let i = 0, l = cameras.length; i < l; i++) {
            const camera2 = cameras[i];
            renderTransmissionPass(opaqueObjects, transmissiveObjects, scene, camera2);
          }
        }
        if (_renderBackground) background.render(scene);
        for (let i = 0, l = cameras.length; i < l; i++) {
          const camera2 = cameras[i];
          renderScene(currentRenderList, scene, camera2, camera2.viewport);
        }
      } else {
        if (transmissiveObjects.length > 0) renderTransmissionPass(opaqueObjects, transmissiveObjects, scene, camera);
        if (_renderBackground) background.render(scene);
        renderScene(currentRenderList, scene, camera);
      }
      if (_currentRenderTarget !== null) {
        textures.updateMultisampleRenderTarget(_currentRenderTarget);
        textures.updateRenderTargetMipmap(_currentRenderTarget);
      }
      if (scene.isScene === true) scene.onAfterRender(_this, scene, camera);
      bindingStates.resetDefaultState();
      _currentMaterialId = -1;
      _currentCamera = null;
      renderStateStack.pop();
      if (renderStateStack.length > 0) {
        currentRenderState = renderStateStack[renderStateStack.length - 1];
        if (_clippingEnabled === true) clipping.setGlobalState(_this.clippingPlanes, currentRenderState.state.camera);
      } else {
        currentRenderState = null;
      }
      renderListStack.pop();
      if (renderListStack.length > 0) {
        currentRenderList = renderListStack[renderListStack.length - 1];
      } else {
        currentRenderList = null;
      }
    };
    function projectObject(object, camera, groupOrder, sortObjects) {
      if (object.visible === false) return;
      const visible = object.layers.test(camera.layers);
      if (visible) {
        if (object.isGroup) {
          groupOrder = object.renderOrder;
        } else if (object.isLOD) {
          if (object.autoUpdate === true) object.update(camera);
        } else if (object.isLight) {
          currentRenderState.pushLight(object);
          if (object.castShadow) {
            currentRenderState.pushShadow(object);
          }
        } else if (object.isSprite) {
          if (!object.frustumCulled || _frustum.intersectsSprite(object)) {
            if (sortObjects) {
              _vector4.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix2);
            }
            const geometry = objects.update(object);
            const material = object.material;
            if (material.visible) {
              currentRenderList.push(object, geometry, material, groupOrder, _vector4.z, null);
            }
          }
        } else if (object.isMesh || object.isLine || object.isPoints) {
          if (!object.frustumCulled || _frustum.intersectsObject(object)) {
            const geometry = objects.update(object);
            const material = object.material;
            if (sortObjects) {
              if (object.boundingSphere !== void 0) {
                if (object.boundingSphere === null) object.computeBoundingSphere();
                _vector4.copy(object.boundingSphere.center);
              } else {
                if (geometry.boundingSphere === null) geometry.computeBoundingSphere();
                _vector4.copy(geometry.boundingSphere.center);
              }
              _vector4.applyMatrix4(object.matrixWorld).applyMatrix4(_projScreenMatrix2);
            }
            if (Array.isArray(material)) {
              const groups = geometry.groups;
              for (let i = 0, l = groups.length; i < l; i++) {
                const group = groups[i];
                const groupMaterial = material[group.materialIndex];
                if (groupMaterial && groupMaterial.visible) {
                  currentRenderList.push(object, geometry, groupMaterial, groupOrder, _vector4.z, group);
                }
              }
            } else if (material.visible) {
              currentRenderList.push(object, geometry, material, groupOrder, _vector4.z, null);
            }
          }
        }
      }
      const children = object.children;
      for (let i = 0, l = children.length; i < l; i++) {
        projectObject(children[i], camera, groupOrder, sortObjects);
      }
    }
    function renderScene(currentRenderList2, scene, camera, viewport) {
      const opaqueObjects = currentRenderList2.opaque;
      const transmissiveObjects = currentRenderList2.transmissive;
      const transparentObjects = currentRenderList2.transparent;
      currentRenderState.setupLightsView(camera);
      if (_clippingEnabled === true) clipping.setGlobalState(_this.clippingPlanes, camera);
      if (viewport) state.viewport(_currentViewport.copy(viewport));
      if (opaqueObjects.length > 0) renderObjects(opaqueObjects, scene, camera);
      if (transmissiveObjects.length > 0) renderObjects(transmissiveObjects, scene, camera);
      if (transparentObjects.length > 0) renderObjects(transparentObjects, scene, camera);
      state.buffers.depth.setTest(true);
      state.buffers.depth.setMask(true);
      state.buffers.color.setMask(true);
      state.setPolygonOffset(false);
    }
    function renderTransmissionPass(opaqueObjects, transmissiveObjects, scene, camera) {
      const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null;
      if (overrideMaterial !== null) {
        return;
      }
      if (currentRenderState.state.transmissionRenderTarget[camera.id] === void 0) {
        currentRenderState.state.transmissionRenderTarget[camera.id] = new WebGLRenderTarget(1, 1, {
          generateMipmaps: true,
          type: extensions.has("EXT_color_buffer_half_float") || extensions.has("EXT_color_buffer_float") ? HalfFloatType : UnsignedByteType,
          minFilter: LinearMipmapLinearFilter,
          samples: 4,
          stencilBuffer: stencil,
          resolveDepthBuffer: false,
          resolveStencilBuffer: false,
          colorSpace: ColorManagement.workingColorSpace
        });
      }
      const transmissionRenderTarget = currentRenderState.state.transmissionRenderTarget[camera.id];
      const activeViewport = camera.viewport || _currentViewport;
      transmissionRenderTarget.setSize(activeViewport.z, activeViewport.w);
      const currentRenderTarget = _this.getRenderTarget();
      _this.setRenderTarget(transmissionRenderTarget);
      _this.getClearColor(_currentClearColor);
      _currentClearAlpha = _this.getClearAlpha();
      if (_currentClearAlpha < 1) _this.setClearColor(16777215, 0.5);
      _this.clear();
      if (_renderBackground) background.render(scene);
      const currentToneMapping = _this.toneMapping;
      _this.toneMapping = NoToneMapping;
      const currentCameraViewport = camera.viewport;
      if (camera.viewport !== void 0) camera.viewport = void 0;
      currentRenderState.setupLightsView(camera);
      if (_clippingEnabled === true) clipping.setGlobalState(_this.clippingPlanes, camera);
      renderObjects(opaqueObjects, scene, camera);
      textures.updateMultisampleRenderTarget(transmissionRenderTarget);
      textures.updateRenderTargetMipmap(transmissionRenderTarget);
      if (extensions.has("WEBGL_multisampled_render_to_texture") === false) {
        let renderTargetNeedsUpdate = false;
        for (let i = 0, l = transmissiveObjects.length; i < l; i++) {
          const renderItem = transmissiveObjects[i];
          const object = renderItem.object;
          const geometry = renderItem.geometry;
          const material = renderItem.material;
          const group = renderItem.group;
          if (material.side === DoubleSide && object.layers.test(camera.layers)) {
            const currentSide = material.side;
            material.side = BackSide;
            material.needsUpdate = true;
            renderObject(object, scene, camera, geometry, material, group);
            material.side = currentSide;
            material.needsUpdate = true;
            renderTargetNeedsUpdate = true;
          }
        }
        if (renderTargetNeedsUpdate === true) {
          textures.updateMultisampleRenderTarget(transmissionRenderTarget);
          textures.updateRenderTargetMipmap(transmissionRenderTarget);
        }
      }
      _this.setRenderTarget(currentRenderTarget);
      _this.setClearColor(_currentClearColor, _currentClearAlpha);
      if (currentCameraViewport !== void 0) camera.viewport = currentCameraViewport;
      _this.toneMapping = currentToneMapping;
    }
    function renderObjects(renderList, scene, camera) {
      const overrideMaterial = scene.isScene === true ? scene.overrideMaterial : null;
      for (let i = 0, l = renderList.length; i < l; i++) {
        const renderItem = renderList[i];
        const object = renderItem.object;
        const geometry = renderItem.geometry;
        const material = overrideMaterial === null ? renderItem.material : overrideMaterial;
        const group = renderItem.group;
        if (object.layers.test(camera.layers)) {
          renderObject(object, scene, camera, geometry, material, group);
        }
      }
    }
    function renderObject(object, scene, camera, geometry, material, group) {
      object.onBeforeRender(_this, scene, camera, geometry, material, group);
      object.modelViewMatrix.multiplyMatrices(camera.matrixWorldInverse, object.matrixWorld);
      object.normalMatrix.getNormalMatrix(object.modelViewMatrix);
      material.onBeforeRender(_this, scene, camera, geometry, object, group);
      if (material.transparent === true && material.side === DoubleSide && material.forceSinglePass === false) {
        material.side = BackSide;
        material.needsUpdate = true;
        _this.renderBufferDirect(camera, scene, geometry, material, object, group);
        material.side = FrontSide;
        material.needsUpdate = true;
        _this.renderBufferDirect(camera, scene, geometry, material, object, group);
        material.side = DoubleSide;
      } else {
        _this.renderBufferDirect(camera, scene, geometry, material, object, group);
      }
      object.onAfterRender(_this, scene, camera, geometry, material, group);
    }
    function getProgram(material, scene, object) {
      if (scene.isScene !== true) scene = _emptyScene;
      const materialProperties = properties.get(material);
      const lights = currentRenderState.state.lights;
      const shadowsArray = currentRenderState.state.shadowsArray;
      const lightsStateVersion = lights.state.version;
      const parameters2 = programCache.getParameters(material, lights.state, shadowsArray, scene, object);
      const programCacheKey = programCache.getProgramCacheKey(parameters2);
      let programs = materialProperties.programs;
      materialProperties.environment = material.isMeshStandardMaterial ? scene.environment : null;
      materialProperties.fog = scene.fog;
      materialProperties.envMap = (material.isMeshStandardMaterial ? cubeuvmaps : cubemaps).get(material.envMap || materialProperties.environment);
      materialProperties.envMapRotation = materialProperties.environment !== null && material.envMap === null ? scene.environmentRotation : material.envMapRotation;
      if (programs === void 0) {
        material.addEventListener("dispose", onMaterialDispose);
        programs = /* @__PURE__ */ new Map();
        materialProperties.programs = programs;
      }
      let program = programs.get(programCacheKey);
      if (program !== void 0) {
        if (materialProperties.currentProgram === program && materialProperties.lightsStateVersion === lightsStateVersion) {
          updateCommonMaterialProperties(material, parameters2);
          return program;
        }
      } else {
        parameters2.uniforms = programCache.getUniforms(material);
        material.onBeforeCompile(parameters2, _this);
        program = programCache.acquireProgram(parameters2, programCacheKey);
        programs.set(programCacheKey, program);
        materialProperties.uniforms = parameters2.uniforms;
      }
      const uniforms = materialProperties.uniforms;
      if (!material.isShaderMaterial && !material.isRawShaderMaterial || material.clipping === true) {
        uniforms.clippingPlanes = clipping.uniform;
      }
      updateCommonMaterialProperties(material, parameters2);
      materialProperties.needsLights = materialNeedsLights(material);
      materialProperties.lightsStateVersion = lightsStateVersion;
      if (materialProperties.needsLights) {
        uniforms.ambientLightColor.value = lights.state.ambient;
        uniforms.lightProbe.value = lights.state.probe;
        uniforms.directionalLights.value = lights.state.directional;
        uniforms.directionalLightShadows.value = lights.state.directionalShadow;
        uniforms.spotLights.value = lights.state.spot;
        uniforms.spotLightShadows.value = lights.state.spotShadow;
        uniforms.rectAreaLights.value = lights.state.rectArea;
        uniforms.ltc_1.value = lights.state.rectAreaLTC1;
        uniforms.ltc_2.value = lights.state.rectAreaLTC2;
        uniforms.pointLights.value = lights.state.point;
        uniforms.pointLightShadows.value = lights.state.pointShadow;
        uniforms.hemisphereLights.value = lights.state.hemi;
        uniforms.directionalShadowMap.value = lights.state.directionalShadowMap;
        uniforms.directionalShadowMatrix.value = lights.state.directionalShadowMatrix;
        uniforms.spotShadowMap.value = lights.state.spotShadowMap;
        uniforms.spotLightMatrix.value = lights.state.spotLightMatrix;
        uniforms.spotLightMap.value = lights.state.spotLightMap;
        uniforms.pointShadowMap.value = lights.state.pointShadowMap;
        uniforms.pointShadowMatrix.value = lights.state.pointShadowMatrix;
      }
      materialProperties.currentProgram = program;
      materialProperties.uniformsList = null;
      return program;
    }
    function getUniformList(materialProperties) {
      if (materialProperties.uniformsList === null) {
        const progUniforms = materialProperties.currentProgram.getUniforms();
        materialProperties.uniformsList = WebGLUniforms.seqWithValue(progUniforms.seq, materialProperties.uniforms);
      }
      return materialProperties.uniformsList;
    }
    function updateCommonMaterialProperties(material, parameters2) {
      const materialProperties = properties.get(material);
      materialProperties.outputColorSpace = parameters2.outputColorSpace;
      materialProperties.batching = parameters2.batching;
      materialProperties.batchingColor = parameters2.batchingColor;
      materialProperties.instancing = parameters2.instancing;
      materialProperties.instancingColor = parameters2.instancingColor;
      materialProperties.instancingMorph = parameters2.instancingMorph;
      materialProperties.skinning = parameters2.skinning;
      materialProperties.morphTargets = parameters2.morphTargets;
      materialProperties.morphNormals = parameters2.morphNormals;
      materialProperties.morphColors = parameters2.morphColors;
      materialProperties.morphTargetsCount = parameters2.morphTargetsCount;
      materialProperties.numClippingPlanes = parameters2.numClippingPlanes;
      materialProperties.numIntersection = parameters2.numClipIntersection;
      materialProperties.vertexAlphas = parameters2.vertexAlphas;
      materialProperties.vertexTangents = parameters2.vertexTangents;
      materialProperties.toneMapping = parameters2.toneMapping;
    }
    function setProgram(camera, scene, geometry, material, object) {
      if (scene.isScene !== true) scene = _emptyScene;
      textures.resetTextureUnits();
      const fog = scene.fog;
      const environment = material.isMeshStandardMaterial ? scene.environment : null;
      const colorSpace = _currentRenderTarget === null ? _this.outputColorSpace : _currentRenderTarget.isXRRenderTarget === true ? _currentRenderTarget.texture.colorSpace : LinearSRGBColorSpace;
      const envMap = (material.isMeshStandardMaterial ? cubeuvmaps : cubemaps).get(material.envMap || environment);
      const vertexAlphas = material.vertexColors === true && !!geometry.attributes.color && geometry.attributes.color.itemSize === 4;
      const vertexTangents = !!geometry.attributes.tangent && (!!material.normalMap || material.anisotropy > 0);
      const morphTargets = !!geometry.morphAttributes.position;
      const morphNormals = !!geometry.morphAttributes.normal;
      const morphColors = !!geometry.morphAttributes.color;
      let toneMapping = NoToneMapping;
      if (material.toneMapped) {
        if (_currentRenderTarget === null || _currentRenderTarget.isXRRenderTarget === true) {
          toneMapping = _this.toneMapping;
        }
      }
      const morphAttribute = geometry.morphAttributes.position || geometry.morphAttributes.normal || geometry.morphAttributes.color;
      const morphTargetsCount = morphAttribute !== void 0 ? morphAttribute.length : 0;
      const materialProperties = properties.get(material);
      const lights = currentRenderState.state.lights;
      if (_clippingEnabled === true) {
        if (_localClippingEnabled === true || camera !== _currentCamera) {
          const useCache = camera === _currentCamera && material.id === _currentMaterialId;
          clipping.setState(material, camera, useCache);
        }
      }
      let needsProgramChange = false;
      if (material.version === materialProperties.__version) {
        if (materialProperties.needsLights && materialProperties.lightsStateVersion !== lights.state.version) {
          needsProgramChange = true;
        } else if (materialProperties.outputColorSpace !== colorSpace) {
          needsProgramChange = true;
        } else if (object.isBatchedMesh && materialProperties.batching === false) {
          needsProgramChange = true;
        } else if (!object.isBatchedMesh && materialProperties.batching === true) {
          needsProgramChange = true;
        } else if (object.isBatchedMesh && materialProperties.batchingColor === true && object.colorTexture === null) {
          needsProgramChange = true;
        } else if (object.isBatchedMesh && materialProperties.batchingColor === false && object.colorTexture !== null) {
          needsProgramChange = true;
        } else if (object.isInstancedMesh && materialProperties.instancing === false) {
          needsProgramChange = true;
        } else if (!object.isInstancedMesh && materialProperties.instancing === true) {
          needsProgramChange = true;
        } else if (object.isSkinnedMesh && materialProperties.skinning === false) {
          needsProgramChange = true;
        } else if (!object.isSkinnedMesh && materialProperties.skinning === true) {
          needsProgramChange = true;
        } else if (object.isInstancedMesh && materialProperties.instancingColor === true && object.instanceColor === null) {
          needsProgramChange = true;
        } else if (object.isInstancedMesh && materialProperties.instancingColor === false && object.instanceColor !== null) {
          needsProgramChange = true;
        } else if (object.isInstancedMesh && materialProperties.instancingMorph === true && object.morphTexture === null) {
          needsProgramChange = true;
        } else if (object.isInstancedMesh && materialProperties.instancingMorph === false && object.morphTexture !== null) {
          needsProgramChange = true;
        } else if (materialProperties.envMap !== envMap) {
          needsProgramChange = true;
        } else if (material.fog === true && materialProperties.fog !== fog) {
          needsProgramChange = true;
        } else if (materialProperties.numClippingPlanes !== void 0 && (materialProperties.numClippingPlanes !== clipping.numPlanes || materialProperties.numIntersection !== clipping.numIntersection)) {
          needsProgramChange = true;
        } else if (materialProperties.vertexAlphas !== vertexAlphas) {
          needsProgramChange = true;
        } else if (materialProperties.vertexTangents !== vertexTangents) {
          needsProgramChange = true;
        } else if (materialProperties.morphTargets !== morphTargets) {
          needsProgramChange = true;
        } else if (materialProperties.morphNormals !== morphNormals) {
          needsProgramChange = true;
        } else if (materialProperties.morphColors !== morphColors) {
          needsProgramChange = true;
        } else if (materialProperties.toneMapping !== toneMapping) {
          needsProgramChange = true;
        } else if (materialProperties.morphTargetsCount !== morphTargetsCount) {
          needsProgramChange = true;
        }
      } else {
        needsProgramChange = true;
        materialProperties.__version = material.version;
      }
      let program = materialProperties.currentProgram;
      if (needsProgramChange === true) {
        program = getProgram(material, scene, object);
      }
      let refreshProgram = false;
      let refreshMaterial = false;
      let refreshLights = false;
      const p_uniforms = program.getUniforms(), m_uniforms = materialProperties.uniforms;
      if (state.useProgram(program.program)) {
        refreshProgram = true;
        refreshMaterial = true;
        refreshLights = true;
      }
      if (material.id !== _currentMaterialId) {
        _currentMaterialId = material.id;
        refreshMaterial = true;
      }
      if (refreshProgram || _currentCamera !== camera) {
        const reverseDepthBuffer2 = state.buffers.depth.getReversed();
        if (reverseDepthBuffer2) {
          _currentProjectionMatrix.copy(camera.projectionMatrix);
          toNormalizedProjectionMatrix(_currentProjectionMatrix);
          toReversedProjectionMatrix(_currentProjectionMatrix);
          p_uniforms.setValue(_gl, "projectionMatrix", _currentProjectionMatrix);
        } else {
          p_uniforms.setValue(_gl, "projectionMatrix", camera.projectionMatrix);
        }
        p_uniforms.setValue(_gl, "viewMatrix", camera.matrixWorldInverse);
        const uCamPos = p_uniforms.map.cameraPosition;
        if (uCamPos !== void 0) {
          uCamPos.setValue(_gl, _vector32.setFromMatrixPosition(camera.matrixWorld));
        }
        if (capabilities.logarithmicDepthBuffer) {
          p_uniforms.setValue(
            _gl,
            "logDepthBufFC",
            2 / (Math.log(camera.far + 1) / Math.LN2)
          );
        }
        if (material.isMeshPhongMaterial || material.isMeshToonMaterial || material.isMeshLambertMaterial || material.isMeshBasicMaterial || material.isMeshStandardMaterial || material.isShaderMaterial) {
          p_uniforms.setValue(_gl, "isOrthographic", camera.isOrthographicCamera === true);
        }
        if (_currentCamera !== camera) {
          _currentCamera = camera;
          refreshMaterial = true;
          refreshLights = true;
        }
      }
      if (object.isSkinnedMesh) {
        p_uniforms.setOptional(_gl, object, "bindMatrix");
        p_uniforms.setOptional(_gl, object, "bindMatrixInverse");
        const skeleton = object.skeleton;
        if (skeleton) {
          if (skeleton.boneTexture === null) skeleton.computeBoneTexture();
          p_uniforms.setValue(_gl, "boneTexture", skeleton.boneTexture, textures);
        }
      }
      if (object.isBatchedMesh) {
        p_uniforms.setOptional(_gl, object, "batchingTexture");
        p_uniforms.setValue(_gl, "batchingTexture", object._matricesTexture, textures);
        p_uniforms.setOptional(_gl, object, "batchingIdTexture");
        p_uniforms.setValue(_gl, "batchingIdTexture", object._indirectTexture, textures);
        p_uniforms.setOptional(_gl, object, "batchingColorTexture");
        if (object._colorsTexture !== null) {
          p_uniforms.setValue(_gl, "batchingColorTexture", object._colorsTexture, textures);
        }
      }
      const morphAttributes = geometry.morphAttributes;
      if (morphAttributes.position !== void 0 || morphAttributes.normal !== void 0 || morphAttributes.color !== void 0) {
        morphtargets.update(object, geometry, program);
      }
      if (refreshMaterial || materialProperties.receiveShadow !== object.receiveShadow) {
        materialProperties.receiveShadow = object.receiveShadow;
        p_uniforms.setValue(_gl, "receiveShadow", object.receiveShadow);
      }
      if (material.isMeshGouraudMaterial && material.envMap !== null) {
        m_uniforms.envMap.value = envMap;
        m_uniforms.flipEnvMap.value = envMap.isCubeTexture && envMap.isRenderTargetTexture === false ? -1 : 1;
      }
      if (material.isMeshStandardMaterial && material.envMap === null && scene.environment !== null) {
        m_uniforms.envMapIntensity.value = scene.environmentIntensity;
      }
      if (refreshMaterial) {
        p_uniforms.setValue(_gl, "toneMappingExposure", _this.toneMappingExposure);
        if (materialProperties.needsLights) {
          markUniformsLightsNeedsUpdate(m_uniforms, refreshLights);
        }
        if (fog && material.fog === true) {
          materials.refreshFogUniforms(m_uniforms, fog);
        }
        materials.refreshMaterialUniforms(m_uniforms, material, _pixelRatio, _height, currentRenderState.state.transmissionRenderTarget[camera.id]);
        WebGLUniforms.upload(_gl, getUniformList(materialProperties), m_uniforms, textures);
      }
      if (material.isShaderMaterial && material.uniformsNeedUpdate === true) {
        WebGLUniforms.upload(_gl, getUniformList(materialProperties), m_uniforms, textures);
        material.uniformsNeedUpdate = false;
      }
      if (material.isSpriteMaterial) {
        p_uniforms.setValue(_gl, "center", object.center);
      }
      p_uniforms.setValue(_gl, "modelViewMatrix", object.modelViewMatrix);
      p_uniforms.setValue(_gl, "normalMatrix", object.normalMatrix);
      p_uniforms.setValue(_gl, "modelMatrix", object.matrixWorld);
      if (material.isShaderMaterial || material.isRawShaderMaterial) {
        const groups = material.uniformsGroups;
        for (let i = 0, l = groups.length; i < l; i++) {
          const group = groups[i];
          uniformsGroups.update(group, program);
          uniformsGroups.bind(group, program);
        }
      }
      return program;
    }
    function markUniformsLightsNeedsUpdate(uniforms, value) {
      uniforms.ambientLightColor.needsUpdate = value;
      uniforms.lightProbe.needsUpdate = value;
      uniforms.directionalLights.needsUpdate = value;
      uniforms.directionalLightShadows.needsUpdate = value;
      uniforms.pointLights.needsUpdate = value;
      uniforms.pointLightShadows.needsUpdate = value;
      uniforms.spotLights.needsUpdate = value;
      uniforms.spotLightShadows.needsUpdate = value;
      uniforms.rectAreaLights.needsUpdate = value;
      uniforms.hemisphereLights.needsUpdate = value;
    }
    function materialNeedsLights(material) {
      return material.isMeshLambertMaterial || material.isMeshToonMaterial || material.isMeshPhongMaterial || material.isMeshStandardMaterial || material.isShadowMaterial || material.isShaderMaterial && material.lights === true;
    }
    this.getActiveCubeFace = function() {
      return _currentActiveCubeFace;
    };
    this.getActiveMipmapLevel = function() {
      return _currentActiveMipmapLevel;
    };
    this.getRenderTarget = function() {
      return _currentRenderTarget;
    };
    this.setRenderTargetTextures = function(renderTarget, colorTexture, depthTexture) {
      properties.get(renderTarget.texture).__webglTexture = colorTexture;
      properties.get(renderTarget.depthTexture).__webglTexture = depthTexture;
      const renderTargetProperties = properties.get(renderTarget);
      renderTargetProperties.__hasExternalTextures = true;
      renderTargetProperties.__autoAllocateDepthBuffer = depthTexture === void 0;
      if (!renderTargetProperties.__autoAllocateDepthBuffer) {
        if (extensions.has("WEBGL_multisampled_render_to_texture") === true) {
          console.warn("THREE.WebGLRenderer: Render-to-texture extension was disabled because an external texture was provided");
          renderTargetProperties.__useRenderToTexture = false;
        }
      }
    };
    this.setRenderTargetFramebuffer = function(renderTarget, defaultFramebuffer) {
      const renderTargetProperties = properties.get(renderTarget);
      renderTargetProperties.__webglFramebuffer = defaultFramebuffer;
      renderTargetProperties.__useDefaultFramebuffer = defaultFramebuffer === void 0;
    };
    this.setRenderTarget = function(renderTarget, activeCubeFace = 0, activeMipmapLevel = 0) {
      _currentRenderTarget = renderTarget;
      _currentActiveCubeFace = activeCubeFace;
      _currentActiveMipmapLevel = activeMipmapLevel;
      let useDefaultFramebuffer = true;
      let framebuffer = null;
      let isCube = false;
      let isRenderTarget3D = false;
      if (renderTarget) {
        const renderTargetProperties = properties.get(renderTarget);
        if (renderTargetProperties.__useDefaultFramebuffer !== void 0) {
          state.bindFramebuffer(_gl.FRAMEBUFFER, null);
          useDefaultFramebuffer = false;
        } else if (renderTargetProperties.__webglFramebuffer === void 0) {
          textures.setupRenderTarget(renderTarget);
        } else if (renderTargetProperties.__hasExternalTextures) {
          textures.rebindTextures(renderTarget, properties.get(renderTarget.texture).__webglTexture, properties.get(renderTarget.depthTexture).__webglTexture);
        } else if (renderTarget.depthBuffer) {
          const depthTexture = renderTarget.depthTexture;
          if (renderTargetProperties.__boundDepthTexture !== depthTexture) {
            if (depthTexture !== null && properties.has(depthTexture) && (renderTarget.width !== depthTexture.image.width || renderTarget.height !== depthTexture.image.height)) {
              throw new Error("WebGLRenderTarget: Attached DepthTexture is initialized to the incorrect size.");
            }
            textures.setupDepthRenderbuffer(renderTarget);
          }
        }
        const texture = renderTarget.texture;
        if (texture.isData3DTexture || texture.isDataArrayTexture || texture.isCompressedArrayTexture) {
          isRenderTarget3D = true;
        }
        const __webglFramebuffer = properties.get(renderTarget).__webglFramebuffer;
        if (renderTarget.isWebGLCubeRenderTarget) {
          if (Array.isArray(__webglFramebuffer[activeCubeFace])) {
            framebuffer = __webglFramebuffer[activeCubeFace][activeMipmapLevel];
          } else {
            framebuffer = __webglFramebuffer[activeCubeFace];
          }
          isCube = true;
        } else if (renderTarget.samples > 0 && textures.useMultisampledRTT(renderTarget) === false) {
          framebuffer = properties.get(renderTarget).__webglMultisampledFramebuffer;
        } else {
          if (Array.isArray(__webglFramebuffer)) {
            framebuffer = __webglFramebuffer[activeMipmapLevel];
          } else {
            framebuffer = __webglFramebuffer;
          }
        }
        _currentViewport.copy(renderTarget.viewport);
        _currentScissor.copy(renderTarget.scissor);
        _currentScissorTest = renderTarget.scissorTest;
      } else {
        _currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor();
        _currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor();
        _currentScissorTest = _scissorTest;
      }
      const framebufferBound = state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);
      if (framebufferBound && useDefaultFramebuffer) {
        state.drawBuffers(renderTarget, framebuffer);
      }
      state.viewport(_currentViewport);
      state.scissor(_currentScissor);
      state.setScissorTest(_currentScissorTest);
      if (isCube) {
        const textureProperties = properties.get(renderTarget.texture);
        _gl.framebufferTexture2D(_gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + activeCubeFace, textureProperties.__webglTexture, activeMipmapLevel);
      } else if (isRenderTarget3D) {
        const textureProperties = properties.get(renderTarget.texture);
        const layer = activeCubeFace || 0;
        _gl.framebufferTextureLayer(_gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, textureProperties.__webglTexture, activeMipmapLevel || 0, layer);
      }
      _currentMaterialId = -1;
    };
    this.readRenderTargetPixels = function(renderTarget, x, y, width, height, buffer, activeCubeFaceIndex) {
      if (!(renderTarget && renderTarget.isWebGLRenderTarget)) {
        console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");
        return;
      }
      let framebuffer = properties.get(renderTarget).__webglFramebuffer;
      if (renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== void 0) {
        framebuffer = framebuffer[activeCubeFaceIndex];
      }
      if (framebuffer) {
        state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);
        try {
          const texture = renderTarget.texture;
          const textureFormat = texture.format;
          const textureType = texture.type;
          if (!capabilities.textureFormatReadable(textureFormat)) {
            console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.");
            return;
          }
          if (!capabilities.textureTypeReadable(textureType)) {
            console.error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.");
            return;
          }
          if (x >= 0 && x <= renderTarget.width - width && (y >= 0 && y <= renderTarget.height - height)) {
            _gl.readPixels(x, y, width, height, utils.convert(textureFormat), utils.convert(textureType), buffer);
          }
        } finally {
          const framebuffer2 = _currentRenderTarget !== null ? properties.get(_currentRenderTarget).__webglFramebuffer : null;
          state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer2);
        }
      }
    };
    this.readRenderTargetPixelsAsync = async function(renderTarget, x, y, width, height, buffer, activeCubeFaceIndex) {
      if (!(renderTarget && renderTarget.isWebGLRenderTarget)) {
        throw new Error("THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.");
      }
      let framebuffer = properties.get(renderTarget).__webglFramebuffer;
      if (renderTarget.isWebGLCubeRenderTarget && activeCubeFaceIndex !== void 0) {
        framebuffer = framebuffer[activeCubeFaceIndex];
      }
      if (framebuffer) {
        const texture = renderTarget.texture;
        const textureFormat = texture.format;
        const textureType = texture.type;
        if (!capabilities.textureFormatReadable(textureFormat)) {
          throw new Error("THREE.WebGLRenderer.readRenderTargetPixelsAsync: renderTarget is not in RGBA or implementation defined format.");
        }
        if (!capabilities.textureTypeReadable(textureType)) {
          throw new Error("THREE.WebGLRenderer.readRenderTargetPixelsAsync: renderTarget is not in UnsignedByteType or implementation defined type.");
        }
        if (x >= 0 && x <= renderTarget.width - width && (y >= 0 && y <= renderTarget.height - height)) {
          state.bindFramebuffer(_gl.FRAMEBUFFER, framebuffer);
          const glBuffer = _gl.createBuffer();
          _gl.bindBuffer(_gl.PIXEL_PACK_BUFFER, glBuffer);
          _gl.bufferData(_gl.PIXEL_PACK_BUFFER, buffer.byteLength, _gl.STREAM_READ);
          _gl.readPixels(x, y, width, height, utils.convert(textureFormat), utils.convert(textureType), 0);
          const currFramebuffer = _currentRenderTarget !== null ? properties.get(_currentRenderTarget).__webglFramebuffer : null;
          state.bindFramebuffer(_gl.FRAMEBUFFER, currFramebuffer);
          const sync = _gl.fenceSync(_gl.SYNC_GPU_COMMANDS_COMPLETE, 0);
          _gl.flush();
          await probeAsync(_gl, sync, 4);
          _gl.bindBuffer(_gl.PIXEL_PACK_BUFFER, glBuffer);
          _gl.getBufferSubData(_gl.PIXEL_PACK_BUFFER, 0, buffer);
          _gl.deleteBuffer(glBuffer);
          _gl.deleteSync(sync);
          return buffer;
        } else {
          throw new Error("THREE.WebGLRenderer.readRenderTargetPixelsAsync: requested read bounds are out of range.");
        }
      }
    };
    this.copyFramebufferToTexture = function(texture, position = null, level = 0) {
      if (texture.isTexture !== true) {
        warnOnce("WebGLRenderer: copyFramebufferToTexture function signature has changed.");
        position = arguments[0] || null;
        texture = arguments[1];
      }
      const levelScale = Math.pow(2, -level);
      const width = Math.floor(texture.image.width * levelScale);
      const height = Math.floor(texture.image.height * levelScale);
      const x = position !== null ? position.x : 0;
      const y = position !== null ? position.y : 0;
      textures.setTexture2D(texture, 0);
      _gl.copyTexSubImage2D(_gl.TEXTURE_2D, level, 0, 0, x, y, width, height);
      state.unbindTexture();
    };
    const _srcFramebuffer = _gl.createFramebuffer();
    const _dstFramebuffer = _gl.createFramebuffer();
    this.copyTextureToTexture = function(srcTexture, dstTexture, srcRegion = null, dstPosition = null, srcLevel = 0, dstLevel = null) {
      if (srcTexture.isTexture !== true) {
        warnOnce("WebGLRenderer: copyTextureToTexture function signature has changed.");
        dstPosition = arguments[0] || null;
        srcTexture = arguments[1];
        dstTexture = arguments[2];
        dstLevel = arguments[3] || 0;
        srcRegion = null;
      }
      if (dstLevel === null) {
        if (srcLevel !== 0) {
          warnOnce("WebGLRenderer: copyTextureToTexture function signature has changed to support src and dst mipmap levels.");
          dstLevel = srcLevel;
          srcLevel = 0;
        } else {
          dstLevel = 0;
        }
      }
      let width, height, depth2, minX, minY, minZ;
      let dstX, dstY, dstZ;
      const image = srcTexture.isCompressedTexture ? srcTexture.mipmaps[dstLevel] : srcTexture.image;
      if (srcRegion !== null) {
        width = srcRegion.max.x - srcRegion.min.x;
        height = srcRegion.max.y - srcRegion.min.y;
        depth2 = srcRegion.isBox3 ? srcRegion.max.z - srcRegion.min.z : 1;
        minX = srcRegion.min.x;
        minY = srcRegion.min.y;
        minZ = srcRegion.isBox3 ? srcRegion.min.z : 0;
      } else {
        const levelScale = Math.pow(2, -srcLevel);
        width = Math.floor(image.width * levelScale);
        height = Math.floor(image.height * levelScale);
        if (srcTexture.isDataArrayTexture) {
          depth2 = image.depth;
        } else if (srcTexture.isData3DTexture) {
          depth2 = Math.floor(image.depth * levelScale);
        } else {
          depth2 = 1;
        }
        minX = 0;
        minY = 0;
        minZ = 0;
      }
      if (dstPosition !== null) {
        dstX = dstPosition.x;
        dstY = dstPosition.y;
        dstZ = dstPosition.z;
      } else {
        dstX = 0;
        dstY = 0;
        dstZ = 0;
      }
      const glFormat = utils.convert(dstTexture.format);
      const glType = utils.convert(dstTexture.type);
      let glTarget;
      if (dstTexture.isData3DTexture) {
        textures.setTexture3D(dstTexture, 0);
        glTarget = _gl.TEXTURE_3D;
      } else if (dstTexture.isDataArrayTexture || dstTexture.isCompressedArrayTexture) {
        textures.setTexture2DArray(dstTexture, 0);
        glTarget = _gl.TEXTURE_2D_ARRAY;
      } else {
        textures.setTexture2D(dstTexture, 0);
        glTarget = _gl.TEXTURE_2D;
      }
      _gl.pixelStorei(_gl.UNPACK_FLIP_Y_WEBGL, dstTexture.flipY);
      _gl.pixelStorei(_gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, dstTexture.premultiplyAlpha);
      _gl.pixelStorei(_gl.UNPACK_ALIGNMENT, dstTexture.unpackAlignment);
      const currentUnpackRowLen = _gl.getParameter(_gl.UNPACK_ROW_LENGTH);
      const currentUnpackImageHeight = _gl.getParameter(_gl.UNPACK_IMAGE_HEIGHT);
      const currentUnpackSkipPixels = _gl.getParameter(_gl.UNPACK_SKIP_PIXELS);
      const currentUnpackSkipRows = _gl.getParameter(_gl.UNPACK_SKIP_ROWS);
      const currentUnpackSkipImages = _gl.getParameter(_gl.UNPACK_SKIP_IMAGES);
      _gl.pixelStorei(_gl.UNPACK_ROW_LENGTH, image.width);
      _gl.pixelStorei(_gl.UNPACK_IMAGE_HEIGHT, image.height);
      _gl.pixelStorei(_gl.UNPACK_SKIP_PIXELS, minX);
      _gl.pixelStorei(_gl.UNPACK_SKIP_ROWS, minY);
      _gl.pixelStorei(_gl.UNPACK_SKIP_IMAGES, minZ);
      const isSrc3D = srcTexture.isDataArrayTexture || srcTexture.isData3DTexture;
      const isDst3D = dstTexture.isDataArrayTexture || dstTexture.isData3DTexture;
      if (srcTexture.isDepthTexture) {
        const srcTextureProperties = properties.get(srcTexture);
        const dstTextureProperties = properties.get(dstTexture);
        const srcRenderTargetProperties = properties.get(srcTextureProperties.__renderTarget);
        const dstRenderTargetProperties = properties.get(dstTextureProperties.__renderTarget);
        state.bindFramebuffer(_gl.READ_FRAMEBUFFER, srcRenderTargetProperties.__webglFramebuffer);
        state.bindFramebuffer(_gl.DRAW_FRAMEBUFFER, dstRenderTargetProperties.__webglFramebuffer);
        for (let i = 0; i < depth2; i++) {
          if (isSrc3D) {
            _gl.framebufferTextureLayer(_gl.READ_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, properties.get(srcTexture).__webglTexture, srcLevel, minZ + i);
            _gl.framebufferTextureLayer(_gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, properties.get(dstTexture).__webglTexture, dstLevel, dstZ + i);
          }
          _gl.blitFramebuffer(minX, minY, width, height, dstX, dstY, width, height, _gl.DEPTH_BUFFER_BIT, _gl.NEAREST);
        }
        state.bindFramebuffer(_gl.READ_FRAMEBUFFER, null);
        state.bindFramebuffer(_gl.DRAW_FRAMEBUFFER, null);
      } else if (srcLevel !== 0 || srcTexture.isRenderTargetTexture || properties.has(srcTexture)) {
        const srcTextureProperties = properties.get(srcTexture);
        const dstTextureProperties = properties.get(dstTexture);
        state.bindFramebuffer(_gl.READ_FRAMEBUFFER, _srcFramebuffer);
        state.bindFramebuffer(_gl.DRAW_FRAMEBUFFER, _dstFramebuffer);
        for (let i = 0; i < depth2; i++) {
          if (isSrc3D) {
            _gl.framebufferTextureLayer(_gl.READ_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, srcTextureProperties.__webglTexture, srcLevel, minZ + i);
          } else {
            _gl.framebufferTexture2D(_gl.READ_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D, srcTextureProperties.__webglTexture, srcLevel);
          }
          if (isDst3D) {
            _gl.framebufferTextureLayer(_gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, dstTextureProperties.__webglTexture, dstLevel, dstZ + i);
          } else {
            _gl.framebufferTexture2D(_gl.DRAW_FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D, dstTextureProperties.__webglTexture, dstLevel);
          }
          if (srcLevel !== 0) {
            _gl.blitFramebuffer(minX, minY, width, height, dstX, dstY, width, height, _gl.COLOR_BUFFER_BIT, _gl.NEAREST);
          } else if (isDst3D) {
            _gl.copyTexSubImage3D(glTarget, dstLevel, dstX, dstY, dstZ + i, minX, minY, width, height);
          } else {
            _gl.copyTexSubImage2D(glTarget, dstLevel, dstX, dstY, minX, minY, width, height);
          }
        }
        state.bindFramebuffer(_gl.READ_FRAMEBUFFER, null);
        state.bindFramebuffer(_gl.DRAW_FRAMEBUFFER, null);
      } else {
        if (isDst3D) {
          if (srcTexture.isDataTexture || srcTexture.isData3DTexture) {
            _gl.texSubImage3D(glTarget, dstLevel, dstX, dstY, dstZ, width, height, depth2, glFormat, glType, image.data);
          } else if (dstTexture.isCompressedArrayTexture) {
            _gl.compressedTexSubImage3D(glTarget, dstLevel, dstX, dstY, dstZ, width, height, depth2, glFormat, image.data);
          } else {
            _gl.texSubImage3D(glTarget, dstLevel, dstX, dstY, dstZ, width, height, depth2, glFormat, glType, image);
          }
        } else {
          if (srcTexture.isDataTexture) {
            _gl.texSubImage2D(_gl.TEXTURE_2D, dstLevel, dstX, dstY, width, height, glFormat, glType, image.data);
          } else if (srcTexture.isCompressedTexture) {
            _gl.compressedTexSubImage2D(_gl.TEXTURE_2D, dstLevel, dstX, dstY, image.width, image.height, glFormat, image.data);
          } else {
            _gl.texSubImage2D(_gl.TEXTURE_2D, dstLevel, dstX, dstY, width, height, glFormat, glType, image);
          }
        }
      }
      _gl.pixelStorei(_gl.UNPACK_ROW_LENGTH, currentUnpackRowLen);
      _gl.pixelStorei(_gl.UNPACK_IMAGE_HEIGHT, currentUnpackImageHeight);
      _gl.pixelStorei(_gl.UNPACK_SKIP_PIXELS, currentUnpackSkipPixels);
      _gl.pixelStorei(_gl.UNPACK_SKIP_ROWS, currentUnpackSkipRows);
      _gl.pixelStorei(_gl.UNPACK_SKIP_IMAGES, currentUnpackSkipImages);
      if (dstLevel === 0 && dstTexture.generateMipmaps) {
        _gl.generateMipmap(glTarget);
      }
      state.unbindTexture();
    };
    this.copyTextureToTexture3D = function(srcTexture, dstTexture, srcRegion = null, dstPosition = null, level = 0) {
      if (srcTexture.isTexture !== true) {
        warnOnce("WebGLRenderer: copyTextureToTexture3D function signature has changed.");
        srcRegion = arguments[0] || null;
        dstPosition = arguments[1] || null;
        srcTexture = arguments[2];
        dstTexture = arguments[3];
        level = arguments[4] || 0;
      }
      warnOnce('WebGLRenderer: copyTextureToTexture3D function has been deprecated. Use "copyTextureToTexture" instead.');
      return this.copyTextureToTexture(srcTexture, dstTexture, srcRegion, dstPosition, level);
    };
    this.initRenderTarget = function(target) {
      if (properties.get(target).__webglFramebuffer === void 0) {
        textures.setupRenderTarget(target);
      }
    };
    this.initTexture = function(texture) {
      if (texture.isCubeTexture) {
        textures.setTextureCube(texture, 0);
      } else if (texture.isData3DTexture) {
        textures.setTexture3D(texture, 0);
      } else if (texture.isDataArrayTexture || texture.isCompressedArrayTexture) {
        textures.setTexture2DArray(texture, 0);
      } else {
        textures.setTexture2D(texture, 0);
      }
      state.unbindTexture();
    };
    this.resetState = function() {
      _currentActiveCubeFace = 0;
      _currentActiveMipmapLevel = 0;
      _currentRenderTarget = null;
      state.reset();
      bindingStates.reset();
    };
    if (typeof __THREE_DEVTOOLS__ !== "undefined") {
      __THREE_DEVTOOLS__.dispatchEvent(new CustomEvent("observe", { detail: this }));
    }
  }
  get coordinateSystem() {
    return WebGLCoordinateSystem;
  }
  get outputColorSpace() {
    return this._outputColorSpace;
  }
  set outputColorSpace(colorSpace) {
    this._outputColorSpace = colorSpace;
    const gl = this.getContext();
    gl.drawingBufferColorspace = ColorManagement._getDrawingBufferColorSpace(colorSpace);
    gl.unpackColorSpace = ColorManagement._getUnpackColorSpace();
  }
};

// node_modules/three/examples/jsm/controls/OrbitControls.js
var _changeEvent = { type: "change" };
var _startEvent = { type: "start" };
var _endEvent = { type: "end" };
var _ray2 = new Ray();
var _plane = new Plane();
var _TILT_LIMIT = Math.cos(70 * MathUtils.DEG2RAD);
var _v = new Vector3();
var _twoPI = 2 * Math.PI;
var _STATE = {
  NONE: -1,
  ROTATE: 0,
  DOLLY: 1,
  PAN: 2,
  TOUCH_ROTATE: 3,
  TOUCH_PAN: 4,
  TOUCH_DOLLY_PAN: 5,
  TOUCH_DOLLY_ROTATE: 6
};
var _EPS = 1e-6;
var OrbitControls = class extends Controls {
  constructor(object, domElement = null) {
    super(object, domElement);
    this.state = _STATE.NONE;
    this.enabled = true;
    this.target = new Vector3();
    this.cursor = new Vector3();
    this.minDistance = 0;
    this.maxDistance = Infinity;
    this.minZoom = 0;
    this.maxZoom = Infinity;
    this.minTargetRadius = 0;
    this.maxTargetRadius = Infinity;
    this.minPolarAngle = 0;
    this.maxPolarAngle = Math.PI;
    this.minAzimuthAngle = -Infinity;
    this.maxAzimuthAngle = Infinity;
    this.enableDamping = false;
    this.dampingFactor = 0.05;
    this.enableZoom = true;
    this.zoomSpeed = 1;
    this.enableRotate = true;
    this.rotateSpeed = 1;
    this.enablePan = true;
    this.panSpeed = 1;
    this.screenSpacePanning = true;
    this.keyPanSpeed = 7;
    this.zoomToCursor = false;
    this.autoRotate = false;
    this.autoRotateSpeed = 2;
    this.keys = { LEFT: "ArrowLeft", UP: "ArrowUp", RIGHT: "ArrowRight", BOTTOM: "ArrowDown" };
    this.mouseButtons = { LEFT: MOUSE.ROTATE, MIDDLE: MOUSE.DOLLY, RIGHT: MOUSE.PAN };
    this.touches = { ONE: TOUCH.ROTATE, TWO: TOUCH.DOLLY_PAN };
    this.target0 = this.target.clone();
    this.position0 = this.object.position.clone();
    this.zoom0 = this.object.zoom;
    this._domElementKeyEvents = null;
    this._lastPosition = new Vector3();
    this._lastQuaternion = new Quaternion();
    this._lastTargetPosition = new Vector3();
    this._quat = new Quaternion().setFromUnitVectors(object.up, new Vector3(0, 1, 0));
    this._quatInverse = this._quat.clone().invert();
    this._spherical = new Spherical();
    this._sphericalDelta = new Spherical();
    this._scale = 1;
    this._panOffset = new Vector3();
    this._rotateStart = new Vector2();
    this._rotateEnd = new Vector2();
    this._rotateDelta = new Vector2();
    this._panStart = new Vector2();
    this._panEnd = new Vector2();
    this._panDelta = new Vector2();
    this._dollyStart = new Vector2();
    this._dollyEnd = new Vector2();
    this._dollyDelta = new Vector2();
    this._dollyDirection = new Vector3();
    this._mouse = new Vector2();
    this._performCursorZoom = false;
    this._pointers = [];
    this._pointerPositions = {};
    this._controlActive = false;
    this._onPointerMove = onPointerMove.bind(this);
    this._onPointerDown = onPointerDown.bind(this);
    this._onPointerUp = onPointerUp.bind(this);
    this._onContextMenu = onContextMenu.bind(this);
    this._onMouseWheel = onMouseWheel.bind(this);
    this._onKeyDown = onKeyDown.bind(this);
    this._onTouchStart = onTouchStart.bind(this);
    this._onTouchMove = onTouchMove.bind(this);
    this._onMouseDown = onMouseDown.bind(this);
    this._onMouseMove = onMouseMove.bind(this);
    this._interceptControlDown = interceptControlDown.bind(this);
    this._interceptControlUp = interceptControlUp.bind(this);
    if (this.domElement !== null) {
      this.connect();
    }
    this.update();
  }
  connect() {
    this.domElement.addEventListener("pointerdown", this._onPointerDown);
    this.domElement.addEventListener("pointercancel", this._onPointerUp);
    this.domElement.addEventListener("contextmenu", this._onContextMenu);
    this.domElement.addEventListener("wheel", this._onMouseWheel, { passive: false });
    const document2 = this.domElement.getRootNode();
    document2.addEventListener("keydown", this._interceptControlDown, { passive: true, capture: true });
    this.domElement.style.touchAction = "none";
  }
  disconnect() {
    this.domElement.removeEventListener("pointerdown", this._onPointerDown);
    this.domElement.removeEventListener("pointermove", this._onPointerMove);
    this.domElement.removeEventListener("pointerup", this._onPointerUp);
    this.domElement.removeEventListener("pointercancel", this._onPointerUp);
    this.domElement.removeEventListener("wheel", this._onMouseWheel);
    this.domElement.removeEventListener("contextmenu", this._onContextMenu);
    this.stopListenToKeyEvents();
    const document2 = this.domElement.getRootNode();
    document2.removeEventListener("keydown", this._interceptControlDown, { capture: true });
    this.domElement.style.touchAction = "auto";
  }
  dispose() {
    this.disconnect();
  }
  getPolarAngle() {
    return this._spherical.phi;
  }
  getAzimuthalAngle() {
    return this._spherical.theta;
  }
  getDistance() {
    return this.object.position.distanceTo(this.target);
  }
  listenToKeyEvents(domElement) {
    domElement.addEventListener("keydown", this._onKeyDown);
    this._domElementKeyEvents = domElement;
  }
  stopListenToKeyEvents() {
    if (this._domElementKeyEvents !== null) {
      this._domElementKeyEvents.removeEventListener("keydown", this._onKeyDown);
      this._domElementKeyEvents = null;
    }
  }
  saveState() {
    this.target0.copy(this.target);
    this.position0.copy(this.object.position);
    this.zoom0 = this.object.zoom;
  }
  reset() {
    this.target.copy(this.target0);
    this.object.position.copy(this.position0);
    this.object.zoom = this.zoom0;
    this.object.updateProjectionMatrix();
    this.dispatchEvent(_changeEvent);
    this.update();
    this.state = _STATE.NONE;
  }
  update(deltaTime = null) {
    const position = this.object.position;
    _v.copy(position).sub(this.target);
    _v.applyQuaternion(this._quat);
    this._spherical.setFromVector3(_v);
    if (this.autoRotate && this.state === _STATE.NONE) {
      this._rotateLeft(this._getAutoRotationAngle(deltaTime));
    }
    if (this.enableDamping) {
      this._spherical.theta += this._sphericalDelta.theta * this.dampingFactor;
      this._spherical.phi += this._sphericalDelta.phi * this.dampingFactor;
    } else {
      this._spherical.theta += this._sphericalDelta.theta;
      this._spherical.phi += this._sphericalDelta.phi;
    }
    let min = this.minAzimuthAngle;
    let max = this.maxAzimuthAngle;
    if (isFinite(min) && isFinite(max)) {
      if (min < -Math.PI) min += _twoPI;
      else if (min > Math.PI) min -= _twoPI;
      if (max < -Math.PI) max += _twoPI;
      else if (max > Math.PI) max -= _twoPI;
      if (min <= max) {
        this._spherical.theta = Math.max(min, Math.min(max, this._spherical.theta));
      } else {
        this._spherical.theta = this._spherical.theta > (min + max) / 2 ? Math.max(min, this._spherical.theta) : Math.min(max, this._spherical.theta);
      }
    }
    this._spherical.phi = Math.max(this.minPolarAngle, Math.min(this.maxPolarAngle, this._spherical.phi));
    this._spherical.makeSafe();
    if (this.enableDamping === true) {
      this.target.addScaledVector(this._panOffset, this.dampingFactor);
    } else {
      this.target.add(this._panOffset);
    }
    this.target.sub(this.cursor);
    this.target.clampLength(this.minTargetRadius, this.maxTargetRadius);
    this.target.add(this.cursor);
    let zoomChanged = false;
    if (this.zoomToCursor && this._performCursorZoom || this.object.isOrthographicCamera) {
      this._spherical.radius = this._clampDistance(this._spherical.radius);
    } else {
      const prevRadius = this._spherical.radius;
      this._spherical.radius = this._clampDistance(this._spherical.radius * this._scale);
      zoomChanged = prevRadius != this._spherical.radius;
    }
    _v.setFromSpherical(this._spherical);
    _v.applyQuaternion(this._quatInverse);
    position.copy(this.target).add(_v);
    this.object.lookAt(this.target);
    if (this.enableDamping === true) {
      this._sphericalDelta.theta *= 1 - this.dampingFactor;
      this._sphericalDelta.phi *= 1 - this.dampingFactor;
      this._panOffset.multiplyScalar(1 - this.dampingFactor);
    } else {
      this._sphericalDelta.set(0, 0, 0);
      this._panOffset.set(0, 0, 0);
    }
    if (this.zoomToCursor && this._performCursorZoom) {
      let newRadius = null;
      if (this.object.isPerspectiveCamera) {
        const prevRadius = _v.length();
        newRadius = this._clampDistance(prevRadius * this._scale);
        const radiusDelta = prevRadius - newRadius;
        this.object.position.addScaledVector(this._dollyDirection, radiusDelta);
        this.object.updateMatrixWorld();
        zoomChanged = !!radiusDelta;
      } else if (this.object.isOrthographicCamera) {
        const mouseBefore = new Vector3(this._mouse.x, this._mouse.y, 0);
        mouseBefore.unproject(this.object);
        const prevZoom = this.object.zoom;
        this.object.zoom = Math.max(this.minZoom, Math.min(this.maxZoom, this.object.zoom / this._scale));
        this.object.updateProjectionMatrix();
        zoomChanged = prevZoom !== this.object.zoom;
        const mouseAfter = new Vector3(this._mouse.x, this._mouse.y, 0);
        mouseAfter.unproject(this.object);
        this.object.position.sub(mouseAfter).add(mouseBefore);
        this.object.updateMatrixWorld();
        newRadius = _v.length();
      } else {
        console.warn("WARNING: OrbitControls.js encountered an unknown camera type - zoom to cursor disabled.");
        this.zoomToCursor = false;
      }
      if (newRadius !== null) {
        if (this.screenSpacePanning) {
          this.target.set(0, 0, -1).transformDirection(this.object.matrix).multiplyScalar(newRadius).add(this.object.position);
        } else {
          _ray2.origin.copy(this.object.position);
          _ray2.direction.set(0, 0, -1).transformDirection(this.object.matrix);
          if (Math.abs(this.object.up.dot(_ray2.direction)) < _TILT_LIMIT) {
            this.object.lookAt(this.target);
          } else {
            _plane.setFromNormalAndCoplanarPoint(this.object.up, this.target);
            _ray2.intersectPlane(_plane, this.target);
          }
        }
      }
    } else if (this.object.isOrthographicCamera) {
      const prevZoom = this.object.zoom;
      this.object.zoom = Math.max(this.minZoom, Math.min(this.maxZoom, this.object.zoom / this._scale));
      if (prevZoom !== this.object.zoom) {
        this.object.updateProjectionMatrix();
        zoomChanged = true;
      }
    }
    this._scale = 1;
    this._performCursorZoom = false;
    if (zoomChanged || this._lastPosition.distanceToSquared(this.object.position) > _EPS || 8 * (1 - this._lastQuaternion.dot(this.object.quaternion)) > _EPS || this._lastTargetPosition.distanceToSquared(this.target) > _EPS) {
      this.dispatchEvent(_changeEvent);
      this._lastPosition.copy(this.object.position);
      this._lastQuaternion.copy(this.object.quaternion);
      this._lastTargetPosition.copy(this.target);
      return true;
    }
    return false;
  }
  _getAutoRotationAngle(deltaTime) {
    if (deltaTime !== null) {
      return _twoPI / 60 * this.autoRotateSpeed * deltaTime;
    } else {
      return _twoPI / 60 / 60 * this.autoRotateSpeed;
    }
  }
  _getZoomScale(delta) {
    const normalizedDelta = Math.abs(delta * 0.01);
    return Math.pow(0.95, this.zoomSpeed * normalizedDelta);
  }
  _rotateLeft(angle) {
    this._sphericalDelta.theta -= angle;
  }
  _rotateUp(angle) {
    this._sphericalDelta.phi -= angle;
  }
  _panLeft(distance, objectMatrix) {
    _v.setFromMatrixColumn(objectMatrix, 0);
    _v.multiplyScalar(-distance);
    this._panOffset.add(_v);
  }
  _panUp(distance, objectMatrix) {
    if (this.screenSpacePanning === true) {
      _v.setFromMatrixColumn(objectMatrix, 1);
    } else {
      _v.setFromMatrixColumn(objectMatrix, 0);
      _v.crossVectors(this.object.up, _v);
    }
    _v.multiplyScalar(distance);
    this._panOffset.add(_v);
  }
  // deltaX and deltaY are in pixels; right and down are positive
  _pan(deltaX, deltaY) {
    const element = this.domElement;
    if (this.object.isPerspectiveCamera) {
      const position = this.object.position;
      _v.copy(position).sub(this.target);
      let targetDistance = _v.length();
      targetDistance *= Math.tan(this.object.fov / 2 * Math.PI / 180);
      this._panLeft(2 * deltaX * targetDistance / element.clientHeight, this.object.matrix);
      this._panUp(2 * deltaY * targetDistance / element.clientHeight, this.object.matrix);
    } else if (this.object.isOrthographicCamera) {
      this._panLeft(deltaX * (this.object.right - this.object.left) / this.object.zoom / element.clientWidth, this.object.matrix);
      this._panUp(deltaY * (this.object.top - this.object.bottom) / this.object.zoom / element.clientHeight, this.object.matrix);
    } else {
      console.warn("WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.");
      this.enablePan = false;
    }
  }
  _dollyOut(dollyScale) {
    if (this.object.isPerspectiveCamera || this.object.isOrthographicCamera) {
      this._scale /= dollyScale;
    } else {
      console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.");
      this.enableZoom = false;
    }
  }
  _dollyIn(dollyScale) {
    if (this.object.isPerspectiveCamera || this.object.isOrthographicCamera) {
      this._scale *= dollyScale;
    } else {
      console.warn("WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.");
      this.enableZoom = false;
    }
  }
  _updateZoomParameters(x, y) {
    if (!this.zoomToCursor) {
      return;
    }
    this._performCursorZoom = true;
    const rect = this.domElement.getBoundingClientRect();
    const dx = x - rect.left;
    const dy = y - rect.top;
    const w = rect.width;
    const h = rect.height;
    this._mouse.x = dx / w * 2 - 1;
    this._mouse.y = -(dy / h) * 2 + 1;
    this._dollyDirection.set(this._mouse.x, this._mouse.y, 1).unproject(this.object).sub(this.object.position).normalize();
  }
  _clampDistance(dist) {
    return Math.max(this.minDistance, Math.min(this.maxDistance, dist));
  }
  //
  // event callbacks - update the object state
  //
  _handleMouseDownRotate(event) {
    this._rotateStart.set(event.clientX, event.clientY);
  }
  _handleMouseDownDolly(event) {
    this._updateZoomParameters(event.clientX, event.clientX);
    this._dollyStart.set(event.clientX, event.clientY);
  }
  _handleMouseDownPan(event) {
    this._panStart.set(event.clientX, event.clientY);
  }
  _handleMouseMoveRotate(event) {
    this._rotateEnd.set(event.clientX, event.clientY);
    this._rotateDelta.subVectors(this._rotateEnd, this._rotateStart).multiplyScalar(this.rotateSpeed);
    const element = this.domElement;
    this._rotateLeft(_twoPI * this._rotateDelta.x / element.clientHeight);
    this._rotateUp(_twoPI * this._rotateDelta.y / element.clientHeight);
    this._rotateStart.copy(this._rotateEnd);
    this.update();
  }
  _handleMouseMoveDolly(event) {
    this._dollyEnd.set(event.clientX, event.clientY);
    this._dollyDelta.subVectors(this._dollyEnd, this._dollyStart);
    if (this._dollyDelta.y > 0) {
      this._dollyOut(this._getZoomScale(this._dollyDelta.y));
    } else if (this._dollyDelta.y < 0) {
      this._dollyIn(this._getZoomScale(this._dollyDelta.y));
    }
    this._dollyStart.copy(this._dollyEnd);
    this.update();
  }
  _handleMouseMovePan(event) {
    this._panEnd.set(event.clientX, event.clientY);
    this._panDelta.subVectors(this._panEnd, this._panStart).multiplyScalar(this.panSpeed);
    this._pan(this._panDelta.x, this._panDelta.y);
    this._panStart.copy(this._panEnd);
    this.update();
  }
  _handleMouseWheel(event) {
    this._updateZoomParameters(event.clientX, event.clientY);
    if (event.deltaY < 0) {
      this._dollyIn(this._getZoomScale(event.deltaY));
    } else if (event.deltaY > 0) {
      this._dollyOut(this._getZoomScale(event.deltaY));
    }
    this.update();
  }
  _handleKeyDown(event) {
    let needsUpdate = false;
    switch (event.code) {
      case this.keys.UP:
        if (event.ctrlKey || event.metaKey || event.shiftKey) {
          if (this.enableRotate) {
            this._rotateUp(_twoPI * this.rotateSpeed / this.domElement.clientHeight);
          }
        } else {
          if (this.enablePan) {
            this._pan(0, this.keyPanSpeed);
          }
        }
        needsUpdate = true;
        break;
      case this.keys.BOTTOM:
        if (event.ctrlKey || event.metaKey || event.shiftKey) {
          if (this.enableRotate) {
            this._rotateUp(-_twoPI * this.rotateSpeed / this.domElement.clientHeight);
          }
        } else {
          if (this.enablePan) {
            this._pan(0, -this.keyPanSpeed);
          }
        }
        needsUpdate = true;
        break;
      case this.keys.LEFT:
        if (event.ctrlKey || event.metaKey || event.shiftKey) {
          if (this.enableRotate) {
            this._rotateLeft(_twoPI * this.rotateSpeed / this.domElement.clientHeight);
          }
        } else {
          if (this.enablePan) {
            this._pan(this.keyPanSpeed, 0);
          }
        }
        needsUpdate = true;
        break;
      case this.keys.RIGHT:
        if (event.ctrlKey || event.metaKey || event.shiftKey) {
          if (this.enableRotate) {
            this._rotateLeft(-_twoPI * this.rotateSpeed / this.domElement.clientHeight);
          }
        } else {
          if (this.enablePan) {
            this._pan(-this.keyPanSpeed, 0);
          }
        }
        needsUpdate = true;
        break;
    }
    if (needsUpdate) {
      event.preventDefault();
      this.update();
    }
  }
  _handleTouchStartRotate(event) {
    if (this._pointers.length === 1) {
      this._rotateStart.set(event.pageX, event.pageY);
    } else {
      const position = this._getSecondPointerPosition(event);
      const x = 0.5 * (event.pageX + position.x);
      const y = 0.5 * (event.pageY + position.y);
      this._rotateStart.set(x, y);
    }
  }
  _handleTouchStartPan(event) {
    if (this._pointers.length === 1) {
      this._panStart.set(event.pageX, event.pageY);
    } else {
      const position = this._getSecondPointerPosition(event);
      const x = 0.5 * (event.pageX + position.x);
      const y = 0.5 * (event.pageY + position.y);
      this._panStart.set(x, y);
    }
  }
  _handleTouchStartDolly(event) {
    const position = this._getSecondPointerPosition(event);
    const dx = event.pageX - position.x;
    const dy = event.pageY - position.y;
    const distance = Math.sqrt(dx * dx + dy * dy);
    this._dollyStart.set(0, distance);
  }
  _handleTouchStartDollyPan(event) {
    if (this.enableZoom) this._handleTouchStartDolly(event);
    if (this.enablePan) this._handleTouchStartPan(event);
  }
  _handleTouchStartDollyRotate(event) {
    if (this.enableZoom) this._handleTouchStartDolly(event);
    if (this.enableRotate) this._handleTouchStartRotate(event);
  }
  _handleTouchMoveRotate(event) {
    if (this._pointers.length == 1) {
      this._rotateEnd.set(event.pageX, event.pageY);
    } else {
      const position = this._getSecondPointerPosition(event);
      const x = 0.5 * (event.pageX + position.x);
      const y = 0.5 * (event.pageY + position.y);
      this._rotateEnd.set(x, y);
    }
    this._rotateDelta.subVectors(this._rotateEnd, this._rotateStart).multiplyScalar(this.rotateSpeed);
    const element = this.domElement;
    this._rotateLeft(_twoPI * this._rotateDelta.x / element.clientHeight);
    this._rotateUp(_twoPI * this._rotateDelta.y / element.clientHeight);
    this._rotateStart.copy(this._rotateEnd);
  }
  _handleTouchMovePan(event) {
    if (this._pointers.length === 1) {
      this._panEnd.set(event.pageX, event.pageY);
    } else {
      const position = this._getSecondPointerPosition(event);
      const x = 0.5 * (event.pageX + position.x);
      const y = 0.5 * (event.pageY + position.y);
      this._panEnd.set(x, y);
    }
    this._panDelta.subVectors(this._panEnd, this._panStart).multiplyScalar(this.panSpeed);
    this._pan(this._panDelta.x, this._panDelta.y);
    this._panStart.copy(this._panEnd);
  }
  _handleTouchMoveDolly(event) {
    const position = this._getSecondPointerPosition(event);
    const dx = event.pageX - position.x;
    const dy = event.pageY - position.y;
    const distance = Math.sqrt(dx * dx + dy * dy);
    this._dollyEnd.set(0, distance);
    this._dollyDelta.set(0, Math.pow(this._dollyEnd.y / this._dollyStart.y, this.zoomSpeed));
    this._dollyOut(this._dollyDelta.y);
    this._dollyStart.copy(this._dollyEnd);
    const centerX = (event.pageX + position.x) * 0.5;
    const centerY = (event.pageY + position.y) * 0.5;
    this._updateZoomParameters(centerX, centerY);
  }
  _handleTouchMoveDollyPan(event) {
    if (this.enableZoom) this._handleTouchMoveDolly(event);
    if (this.enablePan) this._handleTouchMovePan(event);
  }
  _handleTouchMoveDollyRotate(event) {
    if (this.enableZoom) this._handleTouchMoveDolly(event);
    if (this.enableRotate) this._handleTouchMoveRotate(event);
  }
  // pointers
  _addPointer(event) {
    this._pointers.push(event.pointerId);
  }
  _removePointer(event) {
    delete this._pointerPositions[event.pointerId];
    for (let i = 0; i < this._pointers.length; i++) {
      if (this._pointers[i] == event.pointerId) {
        this._pointers.splice(i, 1);
        return;
      }
    }
  }
  _isTrackingPointer(event) {
    for (let i = 0; i < this._pointers.length; i++) {
      if (this._pointers[i] == event.pointerId) return true;
    }
    return false;
  }
  _trackPointer(event) {
    let position = this._pointerPositions[event.pointerId];
    if (position === void 0) {
      position = new Vector2();
      this._pointerPositions[event.pointerId] = position;
    }
    position.set(event.pageX, event.pageY);
  }
  _getSecondPointerPosition(event) {
    const pointerId = event.pointerId === this._pointers[0] ? this._pointers[1] : this._pointers[0];
    return this._pointerPositions[pointerId];
  }
  //
  _customWheelEvent(event) {
    const mode = event.deltaMode;
    const newEvent = {
      clientX: event.clientX,
      clientY: event.clientY,
      deltaY: event.deltaY
    };
    switch (mode) {
      case 1:
        newEvent.deltaY *= 16;
        break;
      case 2:
        newEvent.deltaY *= 100;
        break;
    }
    if (event.ctrlKey && !this._controlActive) {
      newEvent.deltaY *= 10;
    }
    return newEvent;
  }
};
function onPointerDown(event) {
  if (this.enabled === false) return;
  if (this._pointers.length === 0) {
    this.domElement.setPointerCapture(event.pointerId);
    this.domElement.addEventListener("pointermove", this._onPointerMove);
    this.domElement.addEventListener("pointerup", this._onPointerUp);
  }
  if (this._isTrackingPointer(event)) return;
  this._addPointer(event);
  if (event.pointerType === "touch") {
    this._onTouchStart(event);
  } else {
    this._onMouseDown(event);
  }
}
function onPointerMove(event) {
  if (this.enabled === false) return;
  if (event.pointerType === "touch") {
    this._onTouchMove(event);
  } else {
    this._onMouseMove(event);
  }
}
function onPointerUp(event) {
  this._removePointer(event);
  switch (this._pointers.length) {
    case 0:
      this.domElement.releasePointerCapture(event.pointerId);
      this.domElement.removeEventListener("pointermove", this._onPointerMove);
      this.domElement.removeEventListener("pointerup", this._onPointerUp);
      this.dispatchEvent(_endEvent);
      this.state = _STATE.NONE;
      break;
    case 1:
      const pointerId = this._pointers[0];
      const position = this._pointerPositions[pointerId];
      this._onTouchStart({ pointerId, pageX: position.x, pageY: position.y });
      break;
  }
}
function onMouseDown(event) {
  let mouseAction;
  switch (event.button) {
    case 0:
      mouseAction = this.mouseButtons.LEFT;
      break;
    case 1:
      mouseAction = this.mouseButtons.MIDDLE;
      break;
    case 2:
      mouseAction = this.mouseButtons.RIGHT;
      break;
    default:
      mouseAction = -1;
  }
  switch (mouseAction) {
    case MOUSE.DOLLY:
      if (this.enableZoom === false) return;
      this._handleMouseDownDolly(event);
      this.state = _STATE.DOLLY;
      break;
    case MOUSE.ROTATE:
      if (event.ctrlKey || event.metaKey || event.shiftKey) {
        if (this.enablePan === false) return;
        this._handleMouseDownPan(event);
        this.state = _STATE.PAN;
      } else {
        if (this.enableRotate === false) return;
        this._handleMouseDownRotate(event);
        this.state = _STATE.ROTATE;
      }
      break;
    case MOUSE.PAN:
      if (event.ctrlKey || event.metaKey || event.shiftKey) {
        if (this.enableRotate === false) return;
        this._handleMouseDownRotate(event);
        this.state = _STATE.ROTATE;
      } else {
        if (this.enablePan === false) return;
        this._handleMouseDownPan(event);
        this.state = _STATE.PAN;
      }
      break;
    default:
      this.state = _STATE.NONE;
  }
  if (this.state !== _STATE.NONE) {
    this.dispatchEvent(_startEvent);
  }
}
function onMouseMove(event) {
  switch (this.state) {
    case _STATE.ROTATE:
      if (this.enableRotate === false) return;
      this._handleMouseMoveRotate(event);
      break;
    case _STATE.DOLLY:
      if (this.enableZoom === false) return;
      this._handleMouseMoveDolly(event);
      break;
    case _STATE.PAN:
      if (this.enablePan === false) return;
      this._handleMouseMovePan(event);
      break;
  }
}
function onMouseWheel(event) {
  if (this.enabled === false || this.enableZoom === false || this.state !== _STATE.NONE) return;
  event.preventDefault();
  this.dispatchEvent(_startEvent);
  this._handleMouseWheel(this._customWheelEvent(event));
  this.dispatchEvent(_endEvent);
}
function onKeyDown(event) {
  if (this.enabled === false) return;
  this._handleKeyDown(event);
}
function onTouchStart(event) {
  this._trackPointer(event);
  switch (this._pointers.length) {
    case 1:
      switch (this.touches.ONE) {
        case TOUCH.ROTATE:
          if (this.enableRotate === false) return;
          this._handleTouchStartRotate(event);
          this.state = _STATE.TOUCH_ROTATE;
          break;
        case TOUCH.PAN:
          if (this.enablePan === false) return;
          this._handleTouchStartPan(event);
          this.state = _STATE.TOUCH_PAN;
          break;
        default:
          this.state = _STATE.NONE;
      }
      break;
    case 2:
      switch (this.touches.TWO) {
        case TOUCH.DOLLY_PAN:
          if (this.enableZoom === false && this.enablePan === false) return;
          this._handleTouchStartDollyPan(event);
          this.state = _STATE.TOUCH_DOLLY_PAN;
          break;
        case TOUCH.DOLLY_ROTATE:
          if (this.enableZoom === false && this.enableRotate === false) return;
          this._handleTouchStartDollyRotate(event);
          this.state = _STATE.TOUCH_DOLLY_ROTATE;
          break;
        default:
          this.state = _STATE.NONE;
      }
      break;
    default:
      this.state = _STATE.NONE;
  }
  if (this.state !== _STATE.NONE) {
    this.dispatchEvent(_startEvent);
  }
}
function onTouchMove(event) {
  this._trackPointer(event);
  switch (this.state) {
    case _STATE.TOUCH_ROTATE:
      if (this.enableRotate === false) return;
      this._handleTouchMoveRotate(event);
      this.update();
      break;
    case _STATE.TOUCH_PAN:
      if (this.enablePan === false) return;
      this._handleTouchMovePan(event);
      this.update();
      break;
    case _STATE.TOUCH_DOLLY_PAN:
      if (this.enableZoom === false && this.enablePan === false) return;
      this._handleTouchMoveDollyPan(event);
      this.update();
      break;
    case _STATE.TOUCH_DOLLY_ROTATE:
      if (this.enableZoom === false && this.enableRotate === false) return;
      this._handleTouchMoveDollyRotate(event);
      this.update();
      break;
    default:
      this.state = _STATE.NONE;
  }
}
function onContextMenu(event) {
  if (this.enabled === false) return;
  event.preventDefault();
}
function interceptControlDown(event) {
  if (event.key === "Control") {
    this._controlActive = true;
    const document2 = this.domElement.getRootNode();
    document2.addEventListener("keyup", this._interceptControlUp, { passive: true, capture: true });
  }
}
function interceptControlUp(event) {
  if (event.key === "Control") {
    this._controlActive = false;
    const document2 = this.domElement.getRootNode();
    document2.removeEventListener("keyup", this._interceptControlUp, { passive: true, capture: true });
  }
}

// node_modules/three/examples/jsm/utils/BufferGeometryUtils.js
function toTrianglesDrawMode(geometry, drawMode) {
  if (drawMode === TrianglesDrawMode) {
    console.warn("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Geometry already defined as triangles.");
    return geometry;
  }
  if (drawMode === TriangleFanDrawMode || drawMode === TriangleStripDrawMode) {
    let index = geometry.getIndex();
    if (index === null) {
      const indices = [];
      const position = geometry.getAttribute("position");
      if (position !== void 0) {
        for (let i = 0; i < position.count; i++) {
          indices.push(i);
        }
        geometry.setIndex(indices);
        index = geometry.getIndex();
      } else {
        console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Undefined position attribute. Processing not possible.");
        return geometry;
      }
    }
    const numberOfTriangles = index.count - 2;
    const newIndices = [];
    if (drawMode === TriangleFanDrawMode) {
      for (let i = 1; i <= numberOfTriangles; i++) {
        newIndices.push(index.getX(0));
        newIndices.push(index.getX(i));
        newIndices.push(index.getX(i + 1));
      }
    } else {
      for (let i = 0; i < numberOfTriangles; i++) {
        if (i % 2 === 0) {
          newIndices.push(index.getX(i));
          newIndices.push(index.getX(i + 1));
          newIndices.push(index.getX(i + 2));
        } else {
          newIndices.push(index.getX(i + 2));
          newIndices.push(index.getX(i + 1));
          newIndices.push(index.getX(i));
        }
      }
    }
    if (newIndices.length / 3 !== numberOfTriangles) {
      console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unable to generate correct amount of triangles.");
    }
    const newGeometry = geometry.clone();
    newGeometry.setIndex(newIndices);
    newGeometry.clearGroups();
    return newGeometry;
  } else {
    console.error("THREE.BufferGeometryUtils.toTrianglesDrawMode(): Unknown draw mode:", drawMode);
    return geometry;
  }
}

// node_modules/three/examples/jsm/loaders/GLTFLoader.js
var GLTFLoader = class extends Loader {
  constructor(manager) {
    super(manager);
    this.dracoLoader = null;
    this.ktx2Loader = null;
    this.meshoptDecoder = null;
    this.pluginCallbacks = [];
    this.register(function(parser) {
      return new GLTFMaterialsClearcoatExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsDispersionExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFTextureBasisUExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFTextureWebPExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFTextureAVIFExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsSheenExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsTransmissionExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsVolumeExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsIorExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsEmissiveStrengthExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsSpecularExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsIridescenceExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsAnisotropyExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMaterialsBumpExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFLightsExtension(parser);
    });
    this.register(function(parser) {
      return new GLTFMeshoptCompression(parser);
    });
    this.register(function(parser) {
      return new GLTFMeshGpuInstancing(parser);
    });
  }
  load(url, onLoad, onProgress, onError) {
    const scope = this;
    let resourcePath;
    if (this.resourcePath !== "") {
      resourcePath = this.resourcePath;
    } else if (this.path !== "") {
      const relativeUrl = LoaderUtils.extractUrlBase(url);
      resourcePath = LoaderUtils.resolveURL(relativeUrl, this.path);
    } else {
      resourcePath = LoaderUtils.extractUrlBase(url);
    }
    this.manager.itemStart(url);
    const _onError = function(e) {
      if (onError) {
        onError(e);
      } else {
        console.error(e);
      }
      scope.manager.itemError(url);
      scope.manager.itemEnd(url);
    };
    const loader2 = new FileLoader(this.manager);
    loader2.setPath(this.path);
    loader2.setResponseType("arraybuffer");
    loader2.setRequestHeader(this.requestHeader);
    loader2.setWithCredentials(this.withCredentials);
    loader2.load(url, function(data) {
      try {
        scope.parse(data, resourcePath, function(gltf) {
          onLoad(gltf);
          scope.manager.itemEnd(url);
        }, _onError);
      } catch (e) {
        _onError(e);
      }
    }, onProgress, _onError);
  }
  setDRACOLoader(dracoLoader2) {
    this.dracoLoader = dracoLoader2;
    return this;
  }
  setKTX2Loader(ktx2Loader) {
    this.ktx2Loader = ktx2Loader;
    return this;
  }
  setMeshoptDecoder(meshoptDecoder) {
    this.meshoptDecoder = meshoptDecoder;
    return this;
  }
  register(callback) {
    if (this.pluginCallbacks.indexOf(callback) === -1) {
      this.pluginCallbacks.push(callback);
    }
    return this;
  }
  unregister(callback) {
    if (this.pluginCallbacks.indexOf(callback) !== -1) {
      this.pluginCallbacks.splice(this.pluginCallbacks.indexOf(callback), 1);
    }
    return this;
  }
  parse(data, path, onLoad, onError) {
    let json;
    const extensions = {};
    const plugins = {};
    const textDecoder = new TextDecoder();
    if (typeof data === "string") {
      json = JSON.parse(data);
    } else if (data instanceof ArrayBuffer) {
      const magic = textDecoder.decode(new Uint8Array(data, 0, 4));
      if (magic === BINARY_EXTENSION_HEADER_MAGIC) {
        try {
          extensions[EXTENSIONS.KHR_BINARY_GLTF] = new GLTFBinaryExtension(data);
        } catch (error) {
          if (onError) onError(error);
          return;
        }
        json = JSON.parse(extensions[EXTENSIONS.KHR_BINARY_GLTF].content);
      } else {
        json = JSON.parse(textDecoder.decode(data));
      }
    } else {
      json = data;
    }
    if (json.asset === void 0 || json.asset.version[0] < 2) {
      if (onError) onError(new Error("THREE.GLTFLoader: Unsupported asset. glTF versions >=2.0 are supported."));
      return;
    }
    const parser = new GLTFParser(json, {
      path: path || this.resourcePath || "",
      crossOrigin: this.crossOrigin,
      requestHeader: this.requestHeader,
      manager: this.manager,
      ktx2Loader: this.ktx2Loader,
      meshoptDecoder: this.meshoptDecoder
    });
    parser.fileLoader.setRequestHeader(this.requestHeader);
    for (let i = 0; i < this.pluginCallbacks.length; i++) {
      const plugin = this.pluginCallbacks[i](parser);
      if (!plugin.name) console.error("THREE.GLTFLoader: Invalid plugin found: missing name");
      plugins[plugin.name] = plugin;
      extensions[plugin.name] = true;
    }
    if (json.extensionsUsed) {
      for (let i = 0; i < json.extensionsUsed.length; ++i) {
        const extensionName = json.extensionsUsed[i];
        const extensionsRequired = json.extensionsRequired || [];
        switch (extensionName) {
          case EXTENSIONS.KHR_MATERIALS_UNLIT:
            extensions[extensionName] = new GLTFMaterialsUnlitExtension();
            break;
          case EXTENSIONS.KHR_DRACO_MESH_COMPRESSION:
            extensions[extensionName] = new GLTFDracoMeshCompressionExtension(json, this.dracoLoader);
            break;
          case EXTENSIONS.KHR_TEXTURE_TRANSFORM:
            extensions[extensionName] = new GLTFTextureTransformExtension();
            break;
          case EXTENSIONS.KHR_MESH_QUANTIZATION:
            extensions[extensionName] = new GLTFMeshQuantizationExtension();
            break;
          default:
            if (extensionsRequired.indexOf(extensionName) >= 0 && plugins[extensionName] === void 0) {
              console.warn('THREE.GLTFLoader: Unknown extension "' + extensionName + '".');
            }
        }
      }
    }
    parser.setExtensions(extensions);
    parser.setPlugins(plugins);
    parser.parse(onLoad, onError);
  }
  parseAsync(data, path) {
    const scope = this;
    return new Promise(function(resolve, reject) {
      scope.parse(data, path, resolve, reject);
    });
  }
};
function GLTFRegistry() {
  let objects = {};
  return {
    get: function(key) {
      return objects[key];
    },
    add: function(key, object) {
      objects[key] = object;
    },
    remove: function(key) {
      delete objects[key];
    },
    removeAll: function() {
      objects = {};
    }
  };
}
var EXTENSIONS = {
  KHR_BINARY_GLTF: "KHR_binary_glTF",
  KHR_DRACO_MESH_COMPRESSION: "KHR_draco_mesh_compression",
  KHR_LIGHTS_PUNCTUAL: "KHR_lights_punctual",
  KHR_MATERIALS_CLEARCOAT: "KHR_materials_clearcoat",
  KHR_MATERIALS_DISPERSION: "KHR_materials_dispersion",
  KHR_MATERIALS_IOR: "KHR_materials_ior",
  KHR_MATERIALS_SHEEN: "KHR_materials_sheen",
  KHR_MATERIALS_SPECULAR: "KHR_materials_specular",
  KHR_MATERIALS_TRANSMISSION: "KHR_materials_transmission",
  KHR_MATERIALS_IRIDESCENCE: "KHR_materials_iridescence",
  KHR_MATERIALS_ANISOTROPY: "KHR_materials_anisotropy",
  KHR_MATERIALS_UNLIT: "KHR_materials_unlit",
  KHR_MATERIALS_VOLUME: "KHR_materials_volume",
  KHR_TEXTURE_BASISU: "KHR_texture_basisu",
  KHR_TEXTURE_TRANSFORM: "KHR_texture_transform",
  KHR_MESH_QUANTIZATION: "KHR_mesh_quantization",
  KHR_MATERIALS_EMISSIVE_STRENGTH: "KHR_materials_emissive_strength",
  EXT_MATERIALS_BUMP: "EXT_materials_bump",
  EXT_TEXTURE_WEBP: "EXT_texture_webp",
  EXT_TEXTURE_AVIF: "EXT_texture_avif",
  EXT_MESHOPT_COMPRESSION: "EXT_meshopt_compression",
  EXT_MESH_GPU_INSTANCING: "EXT_mesh_gpu_instancing"
};
var GLTFLightsExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_LIGHTS_PUNCTUAL;
    this.cache = { refs: {}, uses: {} };
  }
  _markDefs() {
    const parser = this.parser;
    const nodeDefs = this.parser.json.nodes || [];
    for (let nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex++) {
      const nodeDef = nodeDefs[nodeIndex];
      if (nodeDef.extensions && nodeDef.extensions[this.name] && nodeDef.extensions[this.name].light !== void 0) {
        parser._addNodeRef(this.cache, nodeDef.extensions[this.name].light);
      }
    }
  }
  _loadLight(lightIndex) {
    const parser = this.parser;
    const cacheKey = "light:" + lightIndex;
    let dependency = parser.cache.get(cacheKey);
    if (dependency) return dependency;
    const json = parser.json;
    const extensions = json.extensions && json.extensions[this.name] || {};
    const lightDefs = extensions.lights || [];
    const lightDef = lightDefs[lightIndex];
    let lightNode;
    const color = new Color(16777215);
    if (lightDef.color !== void 0) color.setRGB(lightDef.color[0], lightDef.color[1], lightDef.color[2], LinearSRGBColorSpace);
    const range = lightDef.range !== void 0 ? lightDef.range : 0;
    switch (lightDef.type) {
      case "directional":
        lightNode = new DirectionalLight(color);
        lightNode.target.position.set(0, 0, -1);
        lightNode.add(lightNode.target);
        break;
      case "point":
        lightNode = new PointLight(color);
        lightNode.distance = range;
        break;
      case "spot":
        lightNode = new SpotLight(color);
        lightNode.distance = range;
        lightDef.spot = lightDef.spot || {};
        lightDef.spot.innerConeAngle = lightDef.spot.innerConeAngle !== void 0 ? lightDef.spot.innerConeAngle : 0;
        lightDef.spot.outerConeAngle = lightDef.spot.outerConeAngle !== void 0 ? lightDef.spot.outerConeAngle : Math.PI / 4;
        lightNode.angle = lightDef.spot.outerConeAngle;
        lightNode.penumbra = 1 - lightDef.spot.innerConeAngle / lightDef.spot.outerConeAngle;
        lightNode.target.position.set(0, 0, -1);
        lightNode.add(lightNode.target);
        break;
      default:
        throw new Error("THREE.GLTFLoader: Unexpected light type: " + lightDef.type);
    }
    lightNode.position.set(0, 0, 0);
    lightNode.decay = 2;
    assignExtrasToUserData(lightNode, lightDef);
    if (lightDef.intensity !== void 0) lightNode.intensity = lightDef.intensity;
    lightNode.name = parser.createUniqueName(lightDef.name || "light_" + lightIndex);
    dependency = Promise.resolve(lightNode);
    parser.cache.add(cacheKey, dependency);
    return dependency;
  }
  getDependency(type, index) {
    if (type !== "light") return;
    return this._loadLight(index);
  }
  createNodeAttachment(nodeIndex) {
    const self2 = this;
    const parser = this.parser;
    const json = parser.json;
    const nodeDef = json.nodes[nodeIndex];
    const lightDef = nodeDef.extensions && nodeDef.extensions[this.name] || {};
    const lightIndex = lightDef.light;
    if (lightIndex === void 0) return null;
    return this._loadLight(lightIndex).then(function(light) {
      return parser._getNodeRef(self2.cache, lightIndex, light);
    });
  }
};
var GLTFMaterialsUnlitExtension = class {
  constructor() {
    this.name = EXTENSIONS.KHR_MATERIALS_UNLIT;
  }
  getMaterialType() {
    return MeshBasicMaterial;
  }
  extendParams(materialParams, materialDef, parser) {
    const pending = [];
    materialParams.color = new Color(1, 1, 1);
    materialParams.opacity = 1;
    const metallicRoughness = materialDef.pbrMetallicRoughness;
    if (metallicRoughness) {
      if (Array.isArray(metallicRoughness.baseColorFactor)) {
        const array = metallicRoughness.baseColorFactor;
        materialParams.color.setRGB(array[0], array[1], array[2], LinearSRGBColorSpace);
        materialParams.opacity = array[3];
      }
      if (metallicRoughness.baseColorTexture !== void 0) {
        pending.push(parser.assignTexture(materialParams, "map", metallicRoughness.baseColorTexture, SRGBColorSpace));
      }
    }
    return Promise.all(pending);
  }
};
var GLTFMaterialsEmissiveStrengthExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_EMISSIVE_STRENGTH;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const emissiveStrength = materialDef.extensions[this.name].emissiveStrength;
    if (emissiveStrength !== void 0) {
      materialParams.emissiveIntensity = emissiveStrength;
    }
    return Promise.resolve();
  }
};
var GLTFMaterialsClearcoatExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_CLEARCOAT;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const pending = [];
    const extension = materialDef.extensions[this.name];
    if (extension.clearcoatFactor !== void 0) {
      materialParams.clearcoat = extension.clearcoatFactor;
    }
    if (extension.clearcoatTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "clearcoatMap", extension.clearcoatTexture));
    }
    if (extension.clearcoatRoughnessFactor !== void 0) {
      materialParams.clearcoatRoughness = extension.clearcoatRoughnessFactor;
    }
    if (extension.clearcoatRoughnessTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "clearcoatRoughnessMap", extension.clearcoatRoughnessTexture));
    }
    if (extension.clearcoatNormalTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "clearcoatNormalMap", extension.clearcoatNormalTexture));
      if (extension.clearcoatNormalTexture.scale !== void 0) {
        const scale = extension.clearcoatNormalTexture.scale;
        materialParams.clearcoatNormalScale = new Vector2(scale, scale);
      }
    }
    return Promise.all(pending);
  }
};
var GLTFMaterialsDispersionExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_DISPERSION;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const extension = materialDef.extensions[this.name];
    materialParams.dispersion = extension.dispersion !== void 0 ? extension.dispersion : 0;
    return Promise.resolve();
  }
};
var GLTFMaterialsIridescenceExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_IRIDESCENCE;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const pending = [];
    const extension = materialDef.extensions[this.name];
    if (extension.iridescenceFactor !== void 0) {
      materialParams.iridescence = extension.iridescenceFactor;
    }
    if (extension.iridescenceTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "iridescenceMap", extension.iridescenceTexture));
    }
    if (extension.iridescenceIor !== void 0) {
      materialParams.iridescenceIOR = extension.iridescenceIor;
    }
    if (materialParams.iridescenceThicknessRange === void 0) {
      materialParams.iridescenceThicknessRange = [100, 400];
    }
    if (extension.iridescenceThicknessMinimum !== void 0) {
      materialParams.iridescenceThicknessRange[0] = extension.iridescenceThicknessMinimum;
    }
    if (extension.iridescenceThicknessMaximum !== void 0) {
      materialParams.iridescenceThicknessRange[1] = extension.iridescenceThicknessMaximum;
    }
    if (extension.iridescenceThicknessTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "iridescenceThicknessMap", extension.iridescenceThicknessTexture));
    }
    return Promise.all(pending);
  }
};
var GLTFMaterialsSheenExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_SHEEN;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const pending = [];
    materialParams.sheenColor = new Color(0, 0, 0);
    materialParams.sheenRoughness = 0;
    materialParams.sheen = 1;
    const extension = materialDef.extensions[this.name];
    if (extension.sheenColorFactor !== void 0) {
      const colorFactor = extension.sheenColorFactor;
      materialParams.sheenColor.setRGB(colorFactor[0], colorFactor[1], colorFactor[2], LinearSRGBColorSpace);
    }
    if (extension.sheenRoughnessFactor !== void 0) {
      materialParams.sheenRoughness = extension.sheenRoughnessFactor;
    }
    if (extension.sheenColorTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "sheenColorMap", extension.sheenColorTexture, SRGBColorSpace));
    }
    if (extension.sheenRoughnessTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "sheenRoughnessMap", extension.sheenRoughnessTexture));
    }
    return Promise.all(pending);
  }
};
var GLTFMaterialsTransmissionExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_TRANSMISSION;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const pending = [];
    const extension = materialDef.extensions[this.name];
    if (extension.transmissionFactor !== void 0) {
      materialParams.transmission = extension.transmissionFactor;
    }
    if (extension.transmissionTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "transmissionMap", extension.transmissionTexture));
    }
    return Promise.all(pending);
  }
};
var GLTFMaterialsVolumeExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_VOLUME;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const pending = [];
    const extension = materialDef.extensions[this.name];
    materialParams.thickness = extension.thicknessFactor !== void 0 ? extension.thicknessFactor : 0;
    if (extension.thicknessTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "thicknessMap", extension.thicknessTexture));
    }
    materialParams.attenuationDistance = extension.attenuationDistance || Infinity;
    const colorArray = extension.attenuationColor || [1, 1, 1];
    materialParams.attenuationColor = new Color().setRGB(colorArray[0], colorArray[1], colorArray[2], LinearSRGBColorSpace);
    return Promise.all(pending);
  }
};
var GLTFMaterialsIorExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_IOR;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const extension = materialDef.extensions[this.name];
    materialParams.ior = extension.ior !== void 0 ? extension.ior : 1.5;
    return Promise.resolve();
  }
};
var GLTFMaterialsSpecularExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_SPECULAR;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const pending = [];
    const extension = materialDef.extensions[this.name];
    materialParams.specularIntensity = extension.specularFactor !== void 0 ? extension.specularFactor : 1;
    if (extension.specularTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "specularIntensityMap", extension.specularTexture));
    }
    const colorArray = extension.specularColorFactor || [1, 1, 1];
    materialParams.specularColor = new Color().setRGB(colorArray[0], colorArray[1], colorArray[2], LinearSRGBColorSpace);
    if (extension.specularColorTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "specularColorMap", extension.specularColorTexture, SRGBColorSpace));
    }
    return Promise.all(pending);
  }
};
var GLTFMaterialsBumpExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.EXT_MATERIALS_BUMP;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const pending = [];
    const extension = materialDef.extensions[this.name];
    materialParams.bumpScale = extension.bumpFactor !== void 0 ? extension.bumpFactor : 1;
    if (extension.bumpTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "bumpMap", extension.bumpTexture));
    }
    return Promise.all(pending);
  }
};
var GLTFMaterialsAnisotropyExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_MATERIALS_ANISOTROPY;
  }
  getMaterialType(materialIndex) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) return null;
    return MeshPhysicalMaterial;
  }
  extendMaterialParams(materialIndex, materialParams) {
    const parser = this.parser;
    const materialDef = parser.json.materials[materialIndex];
    if (!materialDef.extensions || !materialDef.extensions[this.name]) {
      return Promise.resolve();
    }
    const pending = [];
    const extension = materialDef.extensions[this.name];
    if (extension.anisotropyStrength !== void 0) {
      materialParams.anisotropy = extension.anisotropyStrength;
    }
    if (extension.anisotropyRotation !== void 0) {
      materialParams.anisotropyRotation = extension.anisotropyRotation;
    }
    if (extension.anisotropyTexture !== void 0) {
      pending.push(parser.assignTexture(materialParams, "anisotropyMap", extension.anisotropyTexture));
    }
    return Promise.all(pending);
  }
};
var GLTFTextureBasisUExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.KHR_TEXTURE_BASISU;
  }
  loadTexture(textureIndex) {
    const parser = this.parser;
    const json = parser.json;
    const textureDef = json.textures[textureIndex];
    if (!textureDef.extensions || !textureDef.extensions[this.name]) {
      return null;
    }
    const extension = textureDef.extensions[this.name];
    const loader2 = parser.options.ktx2Loader;
    if (!loader2) {
      if (json.extensionsRequired && json.extensionsRequired.indexOf(this.name) >= 0) {
        throw new Error("THREE.GLTFLoader: setKTX2Loader must be called before loading KTX2 textures");
      } else {
        return null;
      }
    }
    return parser.loadTextureImage(textureIndex, extension.source, loader2);
  }
};
var GLTFTextureWebPExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.EXT_TEXTURE_WEBP;
    this.isSupported = null;
  }
  loadTexture(textureIndex) {
    const name = this.name;
    const parser = this.parser;
    const json = parser.json;
    const textureDef = json.textures[textureIndex];
    if (!textureDef.extensions || !textureDef.extensions[name]) {
      return null;
    }
    const extension = textureDef.extensions[name];
    const source = json.images[extension.source];
    let loader2 = parser.textureLoader;
    if (source.uri) {
      const handler = parser.options.manager.getHandler(source.uri);
      if (handler !== null) loader2 = handler;
    }
    return this.detectSupport().then(function(isSupported) {
      if (isSupported) return parser.loadTextureImage(textureIndex, extension.source, loader2);
      if (json.extensionsRequired && json.extensionsRequired.indexOf(name) >= 0) {
        throw new Error("THREE.GLTFLoader: WebP required by asset but unsupported.");
      }
      return parser.loadTexture(textureIndex);
    });
  }
  detectSupport() {
    if (!this.isSupported) {
      this.isSupported = new Promise(function(resolve) {
        const image = new Image();
        image.src = "data:image/webp;base64,UklGRiIAAABXRUJQVlA4IBYAAAAwAQCdASoBAAEADsD+JaQAA3AAAAAA";
        image.onload = image.onerror = function() {
          resolve(image.height === 1);
        };
      });
    }
    return this.isSupported;
  }
};
var GLTFTextureAVIFExtension = class {
  constructor(parser) {
    this.parser = parser;
    this.name = EXTENSIONS.EXT_TEXTURE_AVIF;
    this.isSupported = null;
  }
  loadTexture(textureIndex) {
    const name = this.name;
    const parser = this.parser;
    const json = parser.json;
    const textureDef = json.textures[textureIndex];
    if (!textureDef.extensions || !textureDef.extensions[name]) {
      return null;
    }
    const extension = textureDef.extensions[name];
    const source = json.images[extension.source];
    let loader2 = parser.textureLoader;
    if (source.uri) {
      const handler = parser.options.manager.getHandler(source.uri);
      if (handler !== null) loader2 = handler;
    }
    return this.detectSupport().then(function(isSupported) {
      if (isSupported) return parser.loadTextureImage(textureIndex, extension.source, loader2);
      if (json.extensionsRequired && json.extensionsRequired.indexOf(name) >= 0) {
        throw new Error("THREE.GLTFLoader: AVIF required by asset but unsupported.");
      }
      return parser.loadTexture(textureIndex);
    });
  }
  detectSupport() {
    if (!this.isSupported) {
      this.isSupported = new Promise(function(resolve) {
        const image = new Image();
        image.src = "data:image/avif;base64,AAAAIGZ0eXBhdmlmAAAAAGF2aWZtaWYxbWlhZk1BMUIAAADybWV0YQAAAAAAAAAoaGRscgAAAAAAAAAAcGljdAAAAAAAAAAAAAAAAGxpYmF2aWYAAAAADnBpdG0AAAAAAAEAAAAeaWxvYwAAAABEAAABAAEAAAABAAABGgAAABcAAAAoaWluZgAAAAAAAQAAABppbmZlAgAAAAABAABhdjAxQ29sb3IAAAAAamlwcnAAAABLaXBjbwAAABRpc3BlAAAAAAAAAAEAAAABAAAAEHBpeGkAAAAAAwgICAAAAAxhdjFDgQAMAAAAABNjb2xybmNseAACAAIABoAAAAAXaXBtYQAAAAAAAAABAAEEAQKDBAAAAB9tZGF0EgAKCBgABogQEDQgMgkQAAAAB8dSLfI=";
        image.onload = image.onerror = function() {
          resolve(image.height === 1);
        };
      });
    }
    return this.isSupported;
  }
};
var GLTFMeshoptCompression = class {
  constructor(parser) {
    this.name = EXTENSIONS.EXT_MESHOPT_COMPRESSION;
    this.parser = parser;
  }
  loadBufferView(index) {
    const json = this.parser.json;
    const bufferView = json.bufferViews[index];
    if (bufferView.extensions && bufferView.extensions[this.name]) {
      const extensionDef = bufferView.extensions[this.name];
      const buffer = this.parser.getDependency("buffer", extensionDef.buffer);
      const decoder = this.parser.options.meshoptDecoder;
      if (!decoder || !decoder.supported) {
        if (json.extensionsRequired && json.extensionsRequired.indexOf(this.name) >= 0) {
          throw new Error("THREE.GLTFLoader: setMeshoptDecoder must be called before loading compressed files");
        } else {
          return null;
        }
      }
      return buffer.then(function(res) {
        const byteOffset = extensionDef.byteOffset || 0;
        const byteLength = extensionDef.byteLength || 0;
        const count = extensionDef.count;
        const stride = extensionDef.byteStride;
        const source = new Uint8Array(res, byteOffset, byteLength);
        if (decoder.decodeGltfBufferAsync) {
          return decoder.decodeGltfBufferAsync(count, stride, source, extensionDef.mode, extensionDef.filter).then(function(res2) {
            return res2.buffer;
          });
        } else {
          return decoder.ready.then(function() {
            const result = new ArrayBuffer(count * stride);
            decoder.decodeGltfBuffer(new Uint8Array(result), count, stride, source, extensionDef.mode, extensionDef.filter);
            return result;
          });
        }
      });
    } else {
      return null;
    }
  }
};
var GLTFMeshGpuInstancing = class {
  constructor(parser) {
    this.name = EXTENSIONS.EXT_MESH_GPU_INSTANCING;
    this.parser = parser;
  }
  createNodeMesh(nodeIndex) {
    const json = this.parser.json;
    const nodeDef = json.nodes[nodeIndex];
    if (!nodeDef.extensions || !nodeDef.extensions[this.name] || nodeDef.mesh === void 0) {
      return null;
    }
    const meshDef = json.meshes[nodeDef.mesh];
    for (const primitive of meshDef.primitives) {
      if (primitive.mode !== WEBGL_CONSTANTS.TRIANGLES && primitive.mode !== WEBGL_CONSTANTS.TRIANGLE_STRIP && primitive.mode !== WEBGL_CONSTANTS.TRIANGLE_FAN && primitive.mode !== void 0) {
        return null;
      }
    }
    const extensionDef = nodeDef.extensions[this.name];
    const attributesDef = extensionDef.attributes;
    const pending = [];
    const attributes = {};
    for (const key in attributesDef) {
      pending.push(this.parser.getDependency("accessor", attributesDef[key]).then((accessor) => {
        attributes[key] = accessor;
        return attributes[key];
      }));
    }
    if (pending.length < 1) {
      return null;
    }
    pending.push(this.parser.createNodeMesh(nodeIndex));
    return Promise.all(pending).then((results) => {
      const nodeObject = results.pop();
      const meshes = nodeObject.isGroup ? nodeObject.children : [nodeObject];
      const count = results[0].count;
      const instancedMeshes = [];
      for (const mesh of meshes) {
        const m = new Matrix4();
        const p = new Vector3();
        const q = new Quaternion();
        const s = new Vector3(1, 1, 1);
        const instancedMesh = new InstancedMesh(mesh.geometry, mesh.material, count);
        for (let i = 0; i < count; i++) {
          if (attributes.TRANSLATION) {
            p.fromBufferAttribute(attributes.TRANSLATION, i);
          }
          if (attributes.ROTATION) {
            q.fromBufferAttribute(attributes.ROTATION, i);
          }
          if (attributes.SCALE) {
            s.fromBufferAttribute(attributes.SCALE, i);
          }
          instancedMesh.setMatrixAt(i, m.compose(p, q, s));
        }
        for (const attributeName in attributes) {
          if (attributeName === "_COLOR_0") {
            const attr = attributes[attributeName];
            instancedMesh.instanceColor = new InstancedBufferAttribute(attr.array, attr.itemSize, attr.normalized);
          } else if (attributeName !== "TRANSLATION" && attributeName !== "ROTATION" && attributeName !== "SCALE") {
            mesh.geometry.setAttribute(attributeName, attributes[attributeName]);
          }
        }
        Object3D.prototype.copy.call(instancedMesh, mesh);
        this.parser.assignFinalMaterial(instancedMesh);
        instancedMeshes.push(instancedMesh);
      }
      if (nodeObject.isGroup) {
        nodeObject.clear();
        nodeObject.add(...instancedMeshes);
        return nodeObject;
      }
      return instancedMeshes[0];
    });
  }
};
var BINARY_EXTENSION_HEADER_MAGIC = "glTF";
var BINARY_EXTENSION_HEADER_LENGTH = 12;
var BINARY_EXTENSION_CHUNK_TYPES = { JSON: 1313821514, BIN: 5130562 };
var GLTFBinaryExtension = class {
  constructor(data) {
    this.name = EXTENSIONS.KHR_BINARY_GLTF;
    this.content = null;
    this.body = null;
    const headerView = new DataView(data, 0, BINARY_EXTENSION_HEADER_LENGTH);
    const textDecoder = new TextDecoder();
    this.header = {
      magic: textDecoder.decode(new Uint8Array(data.slice(0, 4))),
      version: headerView.getUint32(4, true),
      length: headerView.getUint32(8, true)
    };
    if (this.header.magic !== BINARY_EXTENSION_HEADER_MAGIC) {
      throw new Error("THREE.GLTFLoader: Unsupported glTF-Binary header.");
    } else if (this.header.version < 2) {
      throw new Error("THREE.GLTFLoader: Legacy binary file detected.");
    }
    const chunkContentsLength = this.header.length - BINARY_EXTENSION_HEADER_LENGTH;
    const chunkView = new DataView(data, BINARY_EXTENSION_HEADER_LENGTH);
    let chunkIndex = 0;
    while (chunkIndex < chunkContentsLength) {
      const chunkLength = chunkView.getUint32(chunkIndex, true);
      chunkIndex += 4;
      const chunkType = chunkView.getUint32(chunkIndex, true);
      chunkIndex += 4;
      if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.JSON) {
        const contentArray = new Uint8Array(data, BINARY_EXTENSION_HEADER_LENGTH + chunkIndex, chunkLength);
        this.content = textDecoder.decode(contentArray);
      } else if (chunkType === BINARY_EXTENSION_CHUNK_TYPES.BIN) {
        const byteOffset = BINARY_EXTENSION_HEADER_LENGTH + chunkIndex;
        this.body = data.slice(byteOffset, byteOffset + chunkLength);
      }
      chunkIndex += chunkLength;
    }
    if (this.content === null) {
      throw new Error("THREE.GLTFLoader: JSON content not found.");
    }
  }
};
var GLTFDracoMeshCompressionExtension = class {
  constructor(json, dracoLoader2) {
    if (!dracoLoader2) {
      throw new Error("THREE.GLTFLoader: No DRACOLoader instance provided.");
    }
    this.name = EXTENSIONS.KHR_DRACO_MESH_COMPRESSION;
    this.json = json;
    this.dracoLoader = dracoLoader2;
    this.dracoLoader.preload();
  }
  decodePrimitive(primitive, parser) {
    const json = this.json;
    const dracoLoader2 = this.dracoLoader;
    const bufferViewIndex = primitive.extensions[this.name].bufferView;
    const gltfAttributeMap = primitive.extensions[this.name].attributes;
    const threeAttributeMap = {};
    const attributeNormalizedMap = {};
    const attributeTypeMap = {};
    for (const attributeName in gltfAttributeMap) {
      const threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
      threeAttributeMap[threeAttributeName] = gltfAttributeMap[attributeName];
    }
    for (const attributeName in primitive.attributes) {
      const threeAttributeName = ATTRIBUTES[attributeName] || attributeName.toLowerCase();
      if (gltfAttributeMap[attributeName] !== void 0) {
        const accessorDef = json.accessors[primitive.attributes[attributeName]];
        const componentType = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
        attributeTypeMap[threeAttributeName] = componentType.name;
        attributeNormalizedMap[threeAttributeName] = accessorDef.normalized === true;
      }
    }
    return parser.getDependency("bufferView", bufferViewIndex).then(function(bufferView) {
      return new Promise(function(resolve, reject) {
        dracoLoader2.decodeDracoFile(bufferView, function(geometry) {
          for (const attributeName in geometry.attributes) {
            const attribute = geometry.attributes[attributeName];
            const normalized = attributeNormalizedMap[attributeName];
            if (normalized !== void 0) attribute.normalized = normalized;
          }
          resolve(geometry);
        }, threeAttributeMap, attributeTypeMap, LinearSRGBColorSpace, reject);
      });
    });
  }
};
var GLTFTextureTransformExtension = class {
  constructor() {
    this.name = EXTENSIONS.KHR_TEXTURE_TRANSFORM;
  }
  extendTexture(texture, transform) {
    if ((transform.texCoord === void 0 || transform.texCoord === texture.channel) && transform.offset === void 0 && transform.rotation === void 0 && transform.scale === void 0) {
      return texture;
    }
    texture = texture.clone();
    if (transform.texCoord !== void 0) {
      texture.channel = transform.texCoord;
    }
    if (transform.offset !== void 0) {
      texture.offset.fromArray(transform.offset);
    }
    if (transform.rotation !== void 0) {
      texture.rotation = transform.rotation;
    }
    if (transform.scale !== void 0) {
      texture.repeat.fromArray(transform.scale);
    }
    texture.needsUpdate = true;
    return texture;
  }
};
var GLTFMeshQuantizationExtension = class {
  constructor() {
    this.name = EXTENSIONS.KHR_MESH_QUANTIZATION;
  }
};
var GLTFCubicSplineInterpolant = class extends Interpolant {
  constructor(parameterPositions, sampleValues, sampleSize, resultBuffer) {
    super(parameterPositions, sampleValues, sampleSize, resultBuffer);
  }
  copySampleValue_(index) {
    const result = this.resultBuffer, values = this.sampleValues, valueSize = this.valueSize, offset = index * valueSize * 3 + valueSize;
    for (let i = 0; i !== valueSize; i++) {
      result[i] = values[offset + i];
    }
    return result;
  }
  interpolate_(i1, t0, t, t1) {
    const result = this.resultBuffer;
    const values = this.sampleValues;
    const stride = this.valueSize;
    const stride2 = stride * 2;
    const stride3 = stride * 3;
    const td = t1 - t0;
    const p = (t - t0) / td;
    const pp = p * p;
    const ppp = pp * p;
    const offset1 = i1 * stride3;
    const offset0 = offset1 - stride3;
    const s2 = -2 * ppp + 3 * pp;
    const s3 = ppp - pp;
    const s0 = 1 - s2;
    const s1 = s3 - pp + p;
    for (let i = 0; i !== stride; i++) {
      const p0 = values[offset0 + i + stride];
      const m0 = values[offset0 + i + stride2] * td;
      const p1 = values[offset1 + i + stride];
      const m1 = values[offset1 + i] * td;
      result[i] = s0 * p0 + s1 * m0 + s2 * p1 + s3 * m1;
    }
    return result;
  }
};
var _q = new Quaternion();
var GLTFCubicSplineQuaternionInterpolant = class extends GLTFCubicSplineInterpolant {
  interpolate_(i1, t0, t, t1) {
    const result = super.interpolate_(i1, t0, t, t1);
    _q.fromArray(result).normalize().toArray(result);
    return result;
  }
};
var WEBGL_CONSTANTS = {
  FLOAT: 5126,
  //FLOAT_MAT2: 35674,
  FLOAT_MAT3: 35675,
  FLOAT_MAT4: 35676,
  FLOAT_VEC2: 35664,
  FLOAT_VEC3: 35665,
  FLOAT_VEC4: 35666,
  LINEAR: 9729,
  REPEAT: 10497,
  SAMPLER_2D: 35678,
  POINTS: 0,
  LINES: 1,
  LINE_LOOP: 2,
  LINE_STRIP: 3,
  TRIANGLES: 4,
  TRIANGLE_STRIP: 5,
  TRIANGLE_FAN: 6,
  UNSIGNED_BYTE: 5121,
  UNSIGNED_SHORT: 5123
};
var WEBGL_COMPONENT_TYPES = {
  5120: Int8Array,
  5121: Uint8Array,
  5122: Int16Array,
  5123: Uint16Array,
  5125: Uint32Array,
  5126: Float32Array
};
var WEBGL_FILTERS = {
  9728: NearestFilter,
  9729: LinearFilter,
  9984: NearestMipmapNearestFilter,
  9985: LinearMipmapNearestFilter,
  9986: NearestMipmapLinearFilter,
  9987: LinearMipmapLinearFilter
};
var WEBGL_WRAPPINGS = {
  33071: ClampToEdgeWrapping,
  33648: MirroredRepeatWrapping,
  10497: RepeatWrapping
};
var WEBGL_TYPE_SIZES = {
  "SCALAR": 1,
  "VEC2": 2,
  "VEC3": 3,
  "VEC4": 4,
  "MAT2": 4,
  "MAT3": 9,
  "MAT4": 16
};
var ATTRIBUTES = {
  POSITION: "position",
  NORMAL: "normal",
  TANGENT: "tangent",
  TEXCOORD_0: "uv",
  TEXCOORD_1: "uv1",
  TEXCOORD_2: "uv2",
  TEXCOORD_3: "uv3",
  COLOR_0: "color",
  WEIGHTS_0: "skinWeight",
  JOINTS_0: "skinIndex"
};
var PATH_PROPERTIES = {
  scale: "scale",
  translation: "position",
  rotation: "quaternion",
  weights: "morphTargetInfluences"
};
var INTERPOLATION = {
  CUBICSPLINE: void 0,
  // We use a custom interpolant (GLTFCubicSplineInterpolation) for CUBICSPLINE tracks. Each
  // keyframe track will be initialized with a default interpolation type, then modified.
  LINEAR: InterpolateLinear,
  STEP: InterpolateDiscrete
};
var ALPHA_MODES = {
  OPAQUE: "OPAQUE",
  MASK: "MASK",
  BLEND: "BLEND"
};
function createDefaultMaterial(cache) {
  if (cache["DefaultMaterial"] === void 0) {
    cache["DefaultMaterial"] = new MeshStandardMaterial({
      color: 16777215,
      emissive: 0,
      metalness: 1,
      roughness: 1,
      transparent: false,
      depthTest: true,
      side: FrontSide
    });
  }
  return cache["DefaultMaterial"];
}
function addUnknownExtensionsToUserData(knownExtensions, object, objectDef) {
  for (const name in objectDef.extensions) {
    if (knownExtensions[name] === void 0) {
      object.userData.gltfExtensions = object.userData.gltfExtensions || {};
      object.userData.gltfExtensions[name] = objectDef.extensions[name];
    }
  }
}
function assignExtrasToUserData(object, gltfDef) {
  if (gltfDef.extras !== void 0) {
    if (typeof gltfDef.extras === "object") {
      Object.assign(object.userData, gltfDef.extras);
    } else {
      console.warn("THREE.GLTFLoader: Ignoring primitive type .extras, " + gltfDef.extras);
    }
  }
}
function addMorphTargets(geometry, targets, parser) {
  let hasMorphPosition = false;
  let hasMorphNormal = false;
  let hasMorphColor = false;
  for (let i = 0, il = targets.length; i < il; i++) {
    const target = targets[i];
    if (target.POSITION !== void 0) hasMorphPosition = true;
    if (target.NORMAL !== void 0) hasMorphNormal = true;
    if (target.COLOR_0 !== void 0) hasMorphColor = true;
    if (hasMorphPosition && hasMorphNormal && hasMorphColor) break;
  }
  if (!hasMorphPosition && !hasMorphNormal && !hasMorphColor) return Promise.resolve(geometry);
  const pendingPositionAccessors = [];
  const pendingNormalAccessors = [];
  const pendingColorAccessors = [];
  for (let i = 0, il = targets.length; i < il; i++) {
    const target = targets[i];
    if (hasMorphPosition) {
      const pendingAccessor = target.POSITION !== void 0 ? parser.getDependency("accessor", target.POSITION) : geometry.attributes.position;
      pendingPositionAccessors.push(pendingAccessor);
    }
    if (hasMorphNormal) {
      const pendingAccessor = target.NORMAL !== void 0 ? parser.getDependency("accessor", target.NORMAL) : geometry.attributes.normal;
      pendingNormalAccessors.push(pendingAccessor);
    }
    if (hasMorphColor) {
      const pendingAccessor = target.COLOR_0 !== void 0 ? parser.getDependency("accessor", target.COLOR_0) : geometry.attributes.color;
      pendingColorAccessors.push(pendingAccessor);
    }
  }
  return Promise.all([
    Promise.all(pendingPositionAccessors),
    Promise.all(pendingNormalAccessors),
    Promise.all(pendingColorAccessors)
  ]).then(function(accessors) {
    const morphPositions = accessors[0];
    const morphNormals = accessors[1];
    const morphColors = accessors[2];
    if (hasMorphPosition) geometry.morphAttributes.position = morphPositions;
    if (hasMorphNormal) geometry.morphAttributes.normal = morphNormals;
    if (hasMorphColor) geometry.morphAttributes.color = morphColors;
    geometry.morphTargetsRelative = true;
    return geometry;
  });
}
function updateMorphTargets(mesh, meshDef) {
  mesh.updateMorphTargets();
  if (meshDef.weights !== void 0) {
    for (let i = 0, il = meshDef.weights.length; i < il; i++) {
      mesh.morphTargetInfluences[i] = meshDef.weights[i];
    }
  }
  if (meshDef.extras && Array.isArray(meshDef.extras.targetNames)) {
    const targetNames = meshDef.extras.targetNames;
    if (mesh.morphTargetInfluences.length === targetNames.length) {
      mesh.morphTargetDictionary = {};
      for (let i = 0, il = targetNames.length; i < il; i++) {
        mesh.morphTargetDictionary[targetNames[i]] = i;
      }
    } else {
      console.warn("THREE.GLTFLoader: Invalid extras.targetNames length. Ignoring names.");
    }
  }
}
function createPrimitiveKey(primitiveDef) {
  let geometryKey;
  const dracoExtension = primitiveDef.extensions && primitiveDef.extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION];
  if (dracoExtension) {
    geometryKey = "draco:" + dracoExtension.bufferView + ":" + dracoExtension.indices + ":" + createAttributesKey(dracoExtension.attributes);
  } else {
    geometryKey = primitiveDef.indices + ":" + createAttributesKey(primitiveDef.attributes) + ":" + primitiveDef.mode;
  }
  if (primitiveDef.targets !== void 0) {
    for (let i = 0, il = primitiveDef.targets.length; i < il; i++) {
      geometryKey += ":" + createAttributesKey(primitiveDef.targets[i]);
    }
  }
  return geometryKey;
}
function createAttributesKey(attributes) {
  let attributesKey = "";
  const keys = Object.keys(attributes).sort();
  for (let i = 0, il = keys.length; i < il; i++) {
    attributesKey += keys[i] + ":" + attributes[keys[i]] + ";";
  }
  return attributesKey;
}
function getNormalizedComponentScale(constructor) {
  switch (constructor) {
    case Int8Array:
      return 1 / 127;
    case Uint8Array:
      return 1 / 255;
    case Int16Array:
      return 1 / 32767;
    case Uint16Array:
      return 1 / 65535;
    default:
      throw new Error("THREE.GLTFLoader: Unsupported normalized accessor component type.");
  }
}
function getImageURIMimeType(uri) {
  if (uri.search(/\.jpe?g($|\?)/i) > 0 || uri.search(/^data\:image\/jpeg/) === 0) return "image/jpeg";
  if (uri.search(/\.webp($|\?)/i) > 0 || uri.search(/^data\:image\/webp/) === 0) return "image/webp";
  if (uri.search(/\.ktx2($|\?)/i) > 0 || uri.search(/^data\:image\/ktx2/) === 0) return "image/ktx2";
  return "image/png";
}
var _identityMatrix2 = new Matrix4();
var GLTFParser = class {
  constructor(json = {}, options = {}) {
    this.json = json;
    this.extensions = {};
    this.plugins = {};
    this.options = options;
    this.cache = new GLTFRegistry();
    this.associations = /* @__PURE__ */ new Map();
    this.primitiveCache = {};
    this.nodeCache = {};
    this.meshCache = { refs: {}, uses: {} };
    this.cameraCache = { refs: {}, uses: {} };
    this.lightCache = { refs: {}, uses: {} };
    this.sourceCache = {};
    this.textureCache = {};
    this.nodeNamesUsed = {};
    let isSafari = false;
    let safariVersion = -1;
    let isFirefox = false;
    let firefoxVersion = -1;
    if (typeof navigator !== "undefined") {
      const userAgent = navigator.userAgent;
      isSafari = /^((?!chrome|android).)*safari/i.test(userAgent) === true;
      const safariMatch = userAgent.match(/Version\/(\d+)/);
      safariVersion = isSafari && safariMatch ? parseInt(safariMatch[1], 10) : -1;
      isFirefox = userAgent.indexOf("Firefox") > -1;
      firefoxVersion = isFirefox ? userAgent.match(/Firefox\/([0-9]+)\./)[1] : -1;
    }
    if (typeof createImageBitmap === "undefined" || isSafari && safariVersion < 17 || isFirefox && firefoxVersion < 98) {
      this.textureLoader = new TextureLoader(this.options.manager);
    } else {
      this.textureLoader = new ImageBitmapLoader(this.options.manager);
    }
    this.textureLoader.setCrossOrigin(this.options.crossOrigin);
    this.textureLoader.setRequestHeader(this.options.requestHeader);
    this.fileLoader = new FileLoader(this.options.manager);
    this.fileLoader.setResponseType("arraybuffer");
    if (this.options.crossOrigin === "use-credentials") {
      this.fileLoader.setWithCredentials(true);
    }
  }
  setExtensions(extensions) {
    this.extensions = extensions;
  }
  setPlugins(plugins) {
    this.plugins = plugins;
  }
  parse(onLoad, onError) {
    const parser = this;
    const json = this.json;
    const extensions = this.extensions;
    this.cache.removeAll();
    this.nodeCache = {};
    this._invokeAll(function(ext) {
      return ext._markDefs && ext._markDefs();
    });
    Promise.all(this._invokeAll(function(ext) {
      return ext.beforeRoot && ext.beforeRoot();
    })).then(function() {
      return Promise.all([
        parser.getDependencies("scene"),
        parser.getDependencies("animation"),
        parser.getDependencies("camera")
      ]);
    }).then(function(dependencies) {
      const result = {
        scene: dependencies[0][json.scene || 0],
        scenes: dependencies[0],
        animations: dependencies[1],
        cameras: dependencies[2],
        asset: json.asset,
        parser,
        userData: {}
      };
      addUnknownExtensionsToUserData(extensions, result, json);
      assignExtrasToUserData(result, json);
      return Promise.all(parser._invokeAll(function(ext) {
        return ext.afterRoot && ext.afterRoot(result);
      })).then(function() {
        for (const scene of result.scenes) {
          scene.updateMatrixWorld();
        }
        onLoad(result);
      });
    }).catch(onError);
  }
  /**
   * Marks the special nodes/meshes in json for efficient parse.
   */
  _markDefs() {
    const nodeDefs = this.json.nodes || [];
    const skinDefs = this.json.skins || [];
    const meshDefs = this.json.meshes || [];
    for (let skinIndex = 0, skinLength = skinDefs.length; skinIndex < skinLength; skinIndex++) {
      const joints = skinDefs[skinIndex].joints;
      for (let i = 0, il = joints.length; i < il; i++) {
        nodeDefs[joints[i]].isBone = true;
      }
    }
    for (let nodeIndex = 0, nodeLength = nodeDefs.length; nodeIndex < nodeLength; nodeIndex++) {
      const nodeDef = nodeDefs[nodeIndex];
      if (nodeDef.mesh !== void 0) {
        this._addNodeRef(this.meshCache, nodeDef.mesh);
        if (nodeDef.skin !== void 0) {
          meshDefs[nodeDef.mesh].isSkinnedMesh = true;
        }
      }
      if (nodeDef.camera !== void 0) {
        this._addNodeRef(this.cameraCache, nodeDef.camera);
      }
    }
  }
  /**
   * Counts references to shared node / Object3D resources. These resources
   * can be reused, or "instantiated", at multiple nodes in the scene
   * hierarchy. Mesh, Camera, and Light instances are instantiated and must
   * be marked. Non-scenegraph resources (like Materials, Geometries, and
   * Textures) can be reused directly and are not marked here.
   *
   * Example: CesiumMilkTruck sample model reuses "Wheel" meshes.
   */
  _addNodeRef(cache, index) {
    if (index === void 0) return;
    if (cache.refs[index] === void 0) {
      cache.refs[index] = cache.uses[index] = 0;
    }
    cache.refs[index]++;
  }
  /** Returns a reference to a shared resource, cloning it if necessary. */
  _getNodeRef(cache, index, object) {
    if (cache.refs[index] <= 1) return object;
    const ref = object.clone();
    const updateMappings = (original, clone) => {
      const mappings = this.associations.get(original);
      if (mappings != null) {
        this.associations.set(clone, mappings);
      }
      for (const [i, child] of original.children.entries()) {
        updateMappings(child, clone.children[i]);
      }
    };
    updateMappings(object, ref);
    ref.name += "_instance_" + cache.uses[index]++;
    return ref;
  }
  _invokeOne(func) {
    const extensions = Object.values(this.plugins);
    extensions.push(this);
    for (let i = 0; i < extensions.length; i++) {
      const result = func(extensions[i]);
      if (result) return result;
    }
    return null;
  }
  _invokeAll(func) {
    const extensions = Object.values(this.plugins);
    extensions.unshift(this);
    const pending = [];
    for (let i = 0; i < extensions.length; i++) {
      const result = func(extensions[i]);
      if (result) pending.push(result);
    }
    return pending;
  }
  /**
   * Requests the specified dependency asynchronously, with caching.
   * @param {string} type
   * @param {number} index
   * @return {Promise<Object3D|Material|THREE.Texture|AnimationClip|ArrayBuffer|Object>}
   */
  getDependency(type, index) {
    const cacheKey = type + ":" + index;
    let dependency = this.cache.get(cacheKey);
    if (!dependency) {
      switch (type) {
        case "scene":
          dependency = this.loadScene(index);
          break;
        case "node":
          dependency = this._invokeOne(function(ext) {
            return ext.loadNode && ext.loadNode(index);
          });
          break;
        case "mesh":
          dependency = this._invokeOne(function(ext) {
            return ext.loadMesh && ext.loadMesh(index);
          });
          break;
        case "accessor":
          dependency = this.loadAccessor(index);
          break;
        case "bufferView":
          dependency = this._invokeOne(function(ext) {
            return ext.loadBufferView && ext.loadBufferView(index);
          });
          break;
        case "buffer":
          dependency = this.loadBuffer(index);
          break;
        case "material":
          dependency = this._invokeOne(function(ext) {
            return ext.loadMaterial && ext.loadMaterial(index);
          });
          break;
        case "texture":
          dependency = this._invokeOne(function(ext) {
            return ext.loadTexture && ext.loadTexture(index);
          });
          break;
        case "skin":
          dependency = this.loadSkin(index);
          break;
        case "animation":
          dependency = this._invokeOne(function(ext) {
            return ext.loadAnimation && ext.loadAnimation(index);
          });
          break;
        case "camera":
          dependency = this.loadCamera(index);
          break;
        default:
          dependency = this._invokeOne(function(ext) {
            return ext != this && ext.getDependency && ext.getDependency(type, index);
          });
          if (!dependency) {
            throw new Error("Unknown type: " + type);
          }
          break;
      }
      this.cache.add(cacheKey, dependency);
    }
    return dependency;
  }
  /**
   * Requests all dependencies of the specified type asynchronously, with caching.
   * @param {string} type
   * @return {Promise<Array<Object>>}
   */
  getDependencies(type) {
    let dependencies = this.cache.get(type);
    if (!dependencies) {
      const parser = this;
      const defs = this.json[type + (type === "mesh" ? "es" : "s")] || [];
      dependencies = Promise.all(defs.map(function(def, index) {
        return parser.getDependency(type, index);
      }));
      this.cache.add(type, dependencies);
    }
    return dependencies;
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
   * @param {number} bufferIndex
   * @return {Promise<ArrayBuffer>}
   */
  loadBuffer(bufferIndex) {
    const bufferDef = this.json.buffers[bufferIndex];
    const loader2 = this.fileLoader;
    if (bufferDef.type && bufferDef.type !== "arraybuffer") {
      throw new Error("THREE.GLTFLoader: " + bufferDef.type + " buffer type is not supported.");
    }
    if (bufferDef.uri === void 0 && bufferIndex === 0) {
      return Promise.resolve(this.extensions[EXTENSIONS.KHR_BINARY_GLTF].body);
    }
    const options = this.options;
    return new Promise(function(resolve, reject) {
      loader2.load(LoaderUtils.resolveURL(bufferDef.uri, options.path), resolve, void 0, function() {
        reject(new Error('THREE.GLTFLoader: Failed to load buffer "' + bufferDef.uri + '".'));
      });
    });
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#buffers-and-buffer-views
   * @param {number} bufferViewIndex
   * @return {Promise<ArrayBuffer>}
   */
  loadBufferView(bufferViewIndex) {
    const bufferViewDef = this.json.bufferViews[bufferViewIndex];
    return this.getDependency("buffer", bufferViewDef.buffer).then(function(buffer) {
      const byteLength = bufferViewDef.byteLength || 0;
      const byteOffset = bufferViewDef.byteOffset || 0;
      return buffer.slice(byteOffset, byteOffset + byteLength);
    });
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#accessors
   * @param {number} accessorIndex
   * @return {Promise<BufferAttribute|InterleavedBufferAttribute>}
   */
  loadAccessor(accessorIndex) {
    const parser = this;
    const json = this.json;
    const accessorDef = this.json.accessors[accessorIndex];
    if (accessorDef.bufferView === void 0 && accessorDef.sparse === void 0) {
      const itemSize = WEBGL_TYPE_SIZES[accessorDef.type];
      const TypedArray = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
      const normalized = accessorDef.normalized === true;
      const array = new TypedArray(accessorDef.count * itemSize);
      return Promise.resolve(new BufferAttribute(array, itemSize, normalized));
    }
    const pendingBufferViews = [];
    if (accessorDef.bufferView !== void 0) {
      pendingBufferViews.push(this.getDependency("bufferView", accessorDef.bufferView));
    } else {
      pendingBufferViews.push(null);
    }
    if (accessorDef.sparse !== void 0) {
      pendingBufferViews.push(this.getDependency("bufferView", accessorDef.sparse.indices.bufferView));
      pendingBufferViews.push(this.getDependency("bufferView", accessorDef.sparse.values.bufferView));
    }
    return Promise.all(pendingBufferViews).then(function(bufferViews) {
      const bufferView = bufferViews[0];
      const itemSize = WEBGL_TYPE_SIZES[accessorDef.type];
      const TypedArray = WEBGL_COMPONENT_TYPES[accessorDef.componentType];
      const elementBytes = TypedArray.BYTES_PER_ELEMENT;
      const itemBytes = elementBytes * itemSize;
      const byteOffset = accessorDef.byteOffset || 0;
      const byteStride = accessorDef.bufferView !== void 0 ? json.bufferViews[accessorDef.bufferView].byteStride : void 0;
      const normalized = accessorDef.normalized === true;
      let array, bufferAttribute;
      if (byteStride && byteStride !== itemBytes) {
        const ibSlice = Math.floor(byteOffset / byteStride);
        const ibCacheKey = "InterleavedBuffer:" + accessorDef.bufferView + ":" + accessorDef.componentType + ":" + ibSlice + ":" + accessorDef.count;
        let ib = parser.cache.get(ibCacheKey);
        if (!ib) {
          array = new TypedArray(bufferView, ibSlice * byteStride, accessorDef.count * byteStride / elementBytes);
          ib = new InterleavedBuffer(array, byteStride / elementBytes);
          parser.cache.add(ibCacheKey, ib);
        }
        bufferAttribute = new InterleavedBufferAttribute(ib, itemSize, byteOffset % byteStride / elementBytes, normalized);
      } else {
        if (bufferView === null) {
          array = new TypedArray(accessorDef.count * itemSize);
        } else {
          array = new TypedArray(bufferView, byteOffset, accessorDef.count * itemSize);
        }
        bufferAttribute = new BufferAttribute(array, itemSize, normalized);
      }
      if (accessorDef.sparse !== void 0) {
        const itemSizeIndices = WEBGL_TYPE_SIZES.SCALAR;
        const TypedArrayIndices = WEBGL_COMPONENT_TYPES[accessorDef.sparse.indices.componentType];
        const byteOffsetIndices = accessorDef.sparse.indices.byteOffset || 0;
        const byteOffsetValues = accessorDef.sparse.values.byteOffset || 0;
        const sparseIndices = new TypedArrayIndices(bufferViews[1], byteOffsetIndices, accessorDef.sparse.count * itemSizeIndices);
        const sparseValues = new TypedArray(bufferViews[2], byteOffsetValues, accessorDef.sparse.count * itemSize);
        if (bufferView !== null) {
          bufferAttribute = new BufferAttribute(bufferAttribute.array.slice(), bufferAttribute.itemSize, bufferAttribute.normalized);
        }
        bufferAttribute.normalized = false;
        for (let i = 0, il = sparseIndices.length; i < il; i++) {
          const index = sparseIndices[i];
          bufferAttribute.setX(index, sparseValues[i * itemSize]);
          if (itemSize >= 2) bufferAttribute.setY(index, sparseValues[i * itemSize + 1]);
          if (itemSize >= 3) bufferAttribute.setZ(index, sparseValues[i * itemSize + 2]);
          if (itemSize >= 4) bufferAttribute.setW(index, sparseValues[i * itemSize + 3]);
          if (itemSize >= 5) throw new Error("THREE.GLTFLoader: Unsupported itemSize in sparse BufferAttribute.");
        }
        bufferAttribute.normalized = normalized;
      }
      return bufferAttribute;
    });
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#textures
   * @param {number} textureIndex
   * @return {Promise<THREE.Texture|null>}
   */
  loadTexture(textureIndex) {
    const json = this.json;
    const options = this.options;
    const textureDef = json.textures[textureIndex];
    const sourceIndex = textureDef.source;
    const sourceDef = json.images[sourceIndex];
    let loader2 = this.textureLoader;
    if (sourceDef.uri) {
      const handler = options.manager.getHandler(sourceDef.uri);
      if (handler !== null) loader2 = handler;
    }
    return this.loadTextureImage(textureIndex, sourceIndex, loader2);
  }
  loadTextureImage(textureIndex, sourceIndex, loader2) {
    const parser = this;
    const json = this.json;
    const textureDef = json.textures[textureIndex];
    const sourceDef = json.images[sourceIndex];
    const cacheKey = (sourceDef.uri || sourceDef.bufferView) + ":" + textureDef.sampler;
    if (this.textureCache[cacheKey]) {
      return this.textureCache[cacheKey];
    }
    const promise = this.loadImageSource(sourceIndex, loader2).then(function(texture) {
      texture.flipY = false;
      texture.name = textureDef.name || sourceDef.name || "";
      if (texture.name === "" && typeof sourceDef.uri === "string" && sourceDef.uri.startsWith("data:image/") === false) {
        texture.name = sourceDef.uri;
      }
      const samplers = json.samplers || {};
      const sampler = samplers[textureDef.sampler] || {};
      texture.magFilter = WEBGL_FILTERS[sampler.magFilter] || LinearFilter;
      texture.minFilter = WEBGL_FILTERS[sampler.minFilter] || LinearMipmapLinearFilter;
      texture.wrapS = WEBGL_WRAPPINGS[sampler.wrapS] || RepeatWrapping;
      texture.wrapT = WEBGL_WRAPPINGS[sampler.wrapT] || RepeatWrapping;
      texture.generateMipmaps = !texture.isCompressedTexture && texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;
      parser.associations.set(texture, { textures: textureIndex });
      return texture;
    }).catch(function() {
      return null;
    });
    this.textureCache[cacheKey] = promise;
    return promise;
  }
  loadImageSource(sourceIndex, loader2) {
    const parser = this;
    const json = this.json;
    const options = this.options;
    if (this.sourceCache[sourceIndex] !== void 0) {
      return this.sourceCache[sourceIndex].then((texture) => texture.clone());
    }
    const sourceDef = json.images[sourceIndex];
    const URL2 = self.URL || self.webkitURL;
    let sourceURI = sourceDef.uri || "";
    let isObjectURL = false;
    if (sourceDef.bufferView !== void 0) {
      sourceURI = parser.getDependency("bufferView", sourceDef.bufferView).then(function(bufferView) {
        isObjectURL = true;
        const blob = new Blob([bufferView], { type: sourceDef.mimeType });
        sourceURI = URL2.createObjectURL(blob);
        return sourceURI;
      });
    } else if (sourceDef.uri === void 0) {
      throw new Error("THREE.GLTFLoader: Image " + sourceIndex + " is missing URI and bufferView");
    }
    const promise = Promise.resolve(sourceURI).then(function(sourceURI2) {
      return new Promise(function(resolve, reject) {
        let onLoad = resolve;
        if (loader2.isImageBitmapLoader === true) {
          onLoad = function(imageBitmap) {
            const texture = new Texture(imageBitmap);
            texture.needsUpdate = true;
            resolve(texture);
          };
        }
        loader2.load(LoaderUtils.resolveURL(sourceURI2, options.path), onLoad, void 0, reject);
      });
    }).then(function(texture) {
      if (isObjectURL === true) {
        URL2.revokeObjectURL(sourceURI);
      }
      assignExtrasToUserData(texture, sourceDef);
      texture.userData.mimeType = sourceDef.mimeType || getImageURIMimeType(sourceDef.uri);
      return texture;
    }).catch(function(error) {
      console.error("THREE.GLTFLoader: Couldn't load texture", sourceURI);
      throw error;
    });
    this.sourceCache[sourceIndex] = promise;
    return promise;
  }
  /**
   * Asynchronously assigns a texture to the given material parameters.
   * @param {Object} materialParams
   * @param {string} mapName
   * @param {Object} mapDef
   * @return {Promise<Texture>}
   */
  assignTexture(materialParams, mapName, mapDef, colorSpace) {
    const parser = this;
    return this.getDependency("texture", mapDef.index).then(function(texture) {
      if (!texture) return null;
      if (mapDef.texCoord !== void 0 && mapDef.texCoord > 0) {
        texture = texture.clone();
        texture.channel = mapDef.texCoord;
      }
      if (parser.extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM]) {
        const transform = mapDef.extensions !== void 0 ? mapDef.extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM] : void 0;
        if (transform) {
          const gltfReference = parser.associations.get(texture);
          texture = parser.extensions[EXTENSIONS.KHR_TEXTURE_TRANSFORM].extendTexture(texture, transform);
          parser.associations.set(texture, gltfReference);
        }
      }
      if (colorSpace !== void 0) {
        texture.colorSpace = colorSpace;
      }
      materialParams[mapName] = texture;
      return texture;
    });
  }
  /**
   * Assigns final material to a Mesh, Line, or Points instance. The instance
   * already has a material (generated from the glTF material options alone)
   * but reuse of the same glTF material may require multiple threejs materials
   * to accommodate different primitive types, defines, etc. New materials will
   * be created if necessary, and reused from a cache.
   * @param  {Object3D} mesh Mesh, Line, or Points instance.
   */
  assignFinalMaterial(mesh) {
    const geometry = mesh.geometry;
    let material = mesh.material;
    const useDerivativeTangents = geometry.attributes.tangent === void 0;
    const useVertexColors = geometry.attributes.color !== void 0;
    const useFlatShading = geometry.attributes.normal === void 0;
    if (mesh.isPoints) {
      const cacheKey = "PointsMaterial:" + material.uuid;
      let pointsMaterial = this.cache.get(cacheKey);
      if (!pointsMaterial) {
        pointsMaterial = new PointsMaterial();
        Material.prototype.copy.call(pointsMaterial, material);
        pointsMaterial.color.copy(material.color);
        pointsMaterial.map = material.map;
        pointsMaterial.sizeAttenuation = false;
        this.cache.add(cacheKey, pointsMaterial);
      }
      material = pointsMaterial;
    } else if (mesh.isLine) {
      const cacheKey = "LineBasicMaterial:" + material.uuid;
      let lineMaterial = this.cache.get(cacheKey);
      if (!lineMaterial) {
        lineMaterial = new LineBasicMaterial();
        Material.prototype.copy.call(lineMaterial, material);
        lineMaterial.color.copy(material.color);
        lineMaterial.map = material.map;
        this.cache.add(cacheKey, lineMaterial);
      }
      material = lineMaterial;
    }
    if (useDerivativeTangents || useVertexColors || useFlatShading) {
      let cacheKey = "ClonedMaterial:" + material.uuid + ":";
      if (useDerivativeTangents) cacheKey += "derivative-tangents:";
      if (useVertexColors) cacheKey += "vertex-colors:";
      if (useFlatShading) cacheKey += "flat-shading:";
      let cachedMaterial = this.cache.get(cacheKey);
      if (!cachedMaterial) {
        cachedMaterial = material.clone();
        if (useVertexColors) cachedMaterial.vertexColors = true;
        if (useFlatShading) cachedMaterial.flatShading = true;
        if (useDerivativeTangents) {
          if (cachedMaterial.normalScale) cachedMaterial.normalScale.y *= -1;
          if (cachedMaterial.clearcoatNormalScale) cachedMaterial.clearcoatNormalScale.y *= -1;
        }
        this.cache.add(cacheKey, cachedMaterial);
        this.associations.set(cachedMaterial, this.associations.get(material));
      }
      material = cachedMaterial;
    }
    mesh.material = material;
  }
  getMaterialType() {
    return MeshStandardMaterial;
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#materials
   * @param {number} materialIndex
   * @return {Promise<Material>}
   */
  loadMaterial(materialIndex) {
    const parser = this;
    const json = this.json;
    const extensions = this.extensions;
    const materialDef = json.materials[materialIndex];
    let materialType;
    const materialParams = {};
    const materialExtensions = materialDef.extensions || {};
    const pending = [];
    if (materialExtensions[EXTENSIONS.KHR_MATERIALS_UNLIT]) {
      const kmuExtension = extensions[EXTENSIONS.KHR_MATERIALS_UNLIT];
      materialType = kmuExtension.getMaterialType();
      pending.push(kmuExtension.extendParams(materialParams, materialDef, parser));
    } else {
      const metallicRoughness = materialDef.pbrMetallicRoughness || {};
      materialParams.color = new Color(1, 1, 1);
      materialParams.opacity = 1;
      if (Array.isArray(metallicRoughness.baseColorFactor)) {
        const array = metallicRoughness.baseColorFactor;
        materialParams.color.setRGB(array[0], array[1], array[2], LinearSRGBColorSpace);
        materialParams.opacity = array[3];
      }
      if (metallicRoughness.baseColorTexture !== void 0) {
        pending.push(parser.assignTexture(materialParams, "map", metallicRoughness.baseColorTexture, SRGBColorSpace));
      }
      materialParams.metalness = metallicRoughness.metallicFactor !== void 0 ? metallicRoughness.metallicFactor : 1;
      materialParams.roughness = metallicRoughness.roughnessFactor !== void 0 ? metallicRoughness.roughnessFactor : 1;
      if (metallicRoughness.metallicRoughnessTexture !== void 0) {
        pending.push(parser.assignTexture(materialParams, "metalnessMap", metallicRoughness.metallicRoughnessTexture));
        pending.push(parser.assignTexture(materialParams, "roughnessMap", metallicRoughness.metallicRoughnessTexture));
      }
      materialType = this._invokeOne(function(ext) {
        return ext.getMaterialType && ext.getMaterialType(materialIndex);
      });
      pending.push(Promise.all(this._invokeAll(function(ext) {
        return ext.extendMaterialParams && ext.extendMaterialParams(materialIndex, materialParams);
      })));
    }
    if (materialDef.doubleSided === true) {
      materialParams.side = DoubleSide;
    }
    const alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;
    if (alphaMode === ALPHA_MODES.BLEND) {
      materialParams.transparent = true;
      materialParams.depthWrite = false;
    } else {
      materialParams.transparent = false;
      if (alphaMode === ALPHA_MODES.MASK) {
        materialParams.alphaTest = materialDef.alphaCutoff !== void 0 ? materialDef.alphaCutoff : 0.5;
      }
    }
    if (materialDef.normalTexture !== void 0 && materialType !== MeshBasicMaterial) {
      pending.push(parser.assignTexture(materialParams, "normalMap", materialDef.normalTexture));
      materialParams.normalScale = new Vector2(1, 1);
      if (materialDef.normalTexture.scale !== void 0) {
        const scale = materialDef.normalTexture.scale;
        materialParams.normalScale.set(scale, scale);
      }
    }
    if (materialDef.occlusionTexture !== void 0 && materialType !== MeshBasicMaterial) {
      pending.push(parser.assignTexture(materialParams, "aoMap", materialDef.occlusionTexture));
      if (materialDef.occlusionTexture.strength !== void 0) {
        materialParams.aoMapIntensity = materialDef.occlusionTexture.strength;
      }
    }
    if (materialDef.emissiveFactor !== void 0 && materialType !== MeshBasicMaterial) {
      const emissiveFactor = materialDef.emissiveFactor;
      materialParams.emissive = new Color().setRGB(emissiveFactor[0], emissiveFactor[1], emissiveFactor[2], LinearSRGBColorSpace);
    }
    if (materialDef.emissiveTexture !== void 0 && materialType !== MeshBasicMaterial) {
      pending.push(parser.assignTexture(materialParams, "emissiveMap", materialDef.emissiveTexture, SRGBColorSpace));
    }
    return Promise.all(pending).then(function() {
      const material = new materialType(materialParams);
      if (materialDef.name) material.name = materialDef.name;
      assignExtrasToUserData(material, materialDef);
      parser.associations.set(material, { materials: materialIndex });
      if (materialDef.extensions) addUnknownExtensionsToUserData(extensions, material, materialDef);
      return material;
    });
  }
  /** When Object3D instances are targeted by animation, they need unique names. */
  createUniqueName(originalName) {
    const sanitizedName = PropertyBinding.sanitizeNodeName(originalName || "");
    if (sanitizedName in this.nodeNamesUsed) {
      return sanitizedName + "_" + ++this.nodeNamesUsed[sanitizedName];
    } else {
      this.nodeNamesUsed[sanitizedName] = 0;
      return sanitizedName;
    }
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#geometry
   *
   * Creates BufferGeometries from primitives.
   *
   * @param {Array<GLTF.Primitive>} primitives
   * @return {Promise<Array<BufferGeometry>>}
   */
  loadGeometries(primitives) {
    const parser = this;
    const extensions = this.extensions;
    const cache = this.primitiveCache;
    function createDracoPrimitive(primitive) {
      return extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION].decodePrimitive(primitive, parser).then(function(geometry) {
        return addPrimitiveAttributes(geometry, primitive, parser);
      });
    }
    const pending = [];
    for (let i = 0, il = primitives.length; i < il; i++) {
      const primitive = primitives[i];
      const cacheKey = createPrimitiveKey(primitive);
      const cached = cache[cacheKey];
      if (cached) {
        pending.push(cached.promise);
      } else {
        let geometryPromise;
        if (primitive.extensions && primitive.extensions[EXTENSIONS.KHR_DRACO_MESH_COMPRESSION]) {
          geometryPromise = createDracoPrimitive(primitive);
        } else {
          geometryPromise = addPrimitiveAttributes(new BufferGeometry(), primitive, parser);
        }
        cache[cacheKey] = { primitive, promise: geometryPromise };
        pending.push(geometryPromise);
      }
    }
    return Promise.all(pending);
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#meshes
   * @param {number} meshIndex
   * @return {Promise<Group|Mesh|SkinnedMesh>}
   */
  loadMesh(meshIndex) {
    const parser = this;
    const json = this.json;
    const extensions = this.extensions;
    const meshDef = json.meshes[meshIndex];
    const primitives = meshDef.primitives;
    const pending = [];
    for (let i = 0, il = primitives.length; i < il; i++) {
      const material = primitives[i].material === void 0 ? createDefaultMaterial(this.cache) : this.getDependency("material", primitives[i].material);
      pending.push(material);
    }
    pending.push(parser.loadGeometries(primitives));
    return Promise.all(pending).then(function(results) {
      const materials = results.slice(0, results.length - 1);
      const geometries = results[results.length - 1];
      const meshes = [];
      for (let i = 0, il = geometries.length; i < il; i++) {
        const geometry = geometries[i];
        const primitive = primitives[i];
        let mesh;
        const material = materials[i];
        if (primitive.mode === WEBGL_CONSTANTS.TRIANGLES || primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP || primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN || primitive.mode === void 0) {
          mesh = meshDef.isSkinnedMesh === true ? new SkinnedMesh(geometry, material) : new Mesh(geometry, material);
          if (mesh.isSkinnedMesh === true) {
            mesh.normalizeSkinWeights();
          }
          if (primitive.mode === WEBGL_CONSTANTS.TRIANGLE_STRIP) {
            mesh.geometry = toTrianglesDrawMode(mesh.geometry, TriangleStripDrawMode);
          } else if (primitive.mode === WEBGL_CONSTANTS.TRIANGLE_FAN) {
            mesh.geometry = toTrianglesDrawMode(mesh.geometry, TriangleFanDrawMode);
          }
        } else if (primitive.mode === WEBGL_CONSTANTS.LINES) {
          mesh = new LineSegments(geometry, material);
        } else if (primitive.mode === WEBGL_CONSTANTS.LINE_STRIP) {
          mesh = new Line(geometry, material);
        } else if (primitive.mode === WEBGL_CONSTANTS.LINE_LOOP) {
          mesh = new LineLoop(geometry, material);
        } else if (primitive.mode === WEBGL_CONSTANTS.POINTS) {
          mesh = new Points(geometry, material);
        } else {
          throw new Error("THREE.GLTFLoader: Primitive mode unsupported: " + primitive.mode);
        }
        if (Object.keys(mesh.geometry.morphAttributes).length > 0) {
          updateMorphTargets(mesh, meshDef);
        }
        mesh.name = parser.createUniqueName(meshDef.name || "mesh_" + meshIndex);
        assignExtrasToUserData(mesh, meshDef);
        if (primitive.extensions) addUnknownExtensionsToUserData(extensions, mesh, primitive);
        parser.assignFinalMaterial(mesh);
        meshes.push(mesh);
      }
      for (let i = 0, il = meshes.length; i < il; i++) {
        parser.associations.set(meshes[i], {
          meshes: meshIndex,
          primitives: i
        });
      }
      if (meshes.length === 1) {
        if (meshDef.extensions) addUnknownExtensionsToUserData(extensions, meshes[0], meshDef);
        return meshes[0];
      }
      const group = new Group();
      if (meshDef.extensions) addUnknownExtensionsToUserData(extensions, group, meshDef);
      parser.associations.set(group, { meshes: meshIndex });
      for (let i = 0, il = meshes.length; i < il; i++) {
        group.add(meshes[i]);
      }
      return group;
    });
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#cameras
   * @param {number} cameraIndex
   * @return {Promise<THREE.Camera>}
   */
  loadCamera(cameraIndex) {
    let camera;
    const cameraDef = this.json.cameras[cameraIndex];
    const params = cameraDef[cameraDef.type];
    if (!params) {
      console.warn("THREE.GLTFLoader: Missing camera parameters.");
      return;
    }
    if (cameraDef.type === "perspective") {
      camera = new PerspectiveCamera(MathUtils.radToDeg(params.yfov), params.aspectRatio || 1, params.znear || 1, params.zfar || 2e6);
    } else if (cameraDef.type === "orthographic") {
      camera = new OrthographicCamera(-params.xmag, params.xmag, params.ymag, -params.ymag, params.znear, params.zfar);
    }
    if (cameraDef.name) camera.name = this.createUniqueName(cameraDef.name);
    assignExtrasToUserData(camera, cameraDef);
    return Promise.resolve(camera);
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#skins
   * @param {number} skinIndex
   * @return {Promise<Skeleton>}
   */
  loadSkin(skinIndex) {
    const skinDef = this.json.skins[skinIndex];
    const pending = [];
    for (let i = 0, il = skinDef.joints.length; i < il; i++) {
      pending.push(this._loadNodeShallow(skinDef.joints[i]));
    }
    if (skinDef.inverseBindMatrices !== void 0) {
      pending.push(this.getDependency("accessor", skinDef.inverseBindMatrices));
    } else {
      pending.push(null);
    }
    return Promise.all(pending).then(function(results) {
      const inverseBindMatrices = results.pop();
      const jointNodes = results;
      const bones = [];
      const boneInverses = [];
      for (let i = 0, il = jointNodes.length; i < il; i++) {
        const jointNode = jointNodes[i];
        if (jointNode) {
          bones.push(jointNode);
          const mat = new Matrix4();
          if (inverseBindMatrices !== null) {
            mat.fromArray(inverseBindMatrices.array, i * 16);
          }
          boneInverses.push(mat);
        } else {
          console.warn('THREE.GLTFLoader: Joint "%s" could not be found.', skinDef.joints[i]);
        }
      }
      return new Skeleton(bones, boneInverses);
    });
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#animations
   * @param {number} animationIndex
   * @return {Promise<AnimationClip>}
   */
  loadAnimation(animationIndex) {
    const json = this.json;
    const parser = this;
    const animationDef = json.animations[animationIndex];
    const animationName = animationDef.name ? animationDef.name : "animation_" + animationIndex;
    const pendingNodes = [];
    const pendingInputAccessors = [];
    const pendingOutputAccessors = [];
    const pendingSamplers = [];
    const pendingTargets = [];
    for (let i = 0, il = animationDef.channels.length; i < il; i++) {
      const channel = animationDef.channels[i];
      const sampler = animationDef.samplers[channel.sampler];
      const target = channel.target;
      const name = target.node;
      const input = animationDef.parameters !== void 0 ? animationDef.parameters[sampler.input] : sampler.input;
      const output = animationDef.parameters !== void 0 ? animationDef.parameters[sampler.output] : sampler.output;
      if (target.node === void 0) continue;
      pendingNodes.push(this.getDependency("node", name));
      pendingInputAccessors.push(this.getDependency("accessor", input));
      pendingOutputAccessors.push(this.getDependency("accessor", output));
      pendingSamplers.push(sampler);
      pendingTargets.push(target);
    }
    return Promise.all([
      Promise.all(pendingNodes),
      Promise.all(pendingInputAccessors),
      Promise.all(pendingOutputAccessors),
      Promise.all(pendingSamplers),
      Promise.all(pendingTargets)
    ]).then(function(dependencies) {
      const nodes = dependencies[0];
      const inputAccessors = dependencies[1];
      const outputAccessors = dependencies[2];
      const samplers = dependencies[3];
      const targets = dependencies[4];
      const tracks = [];
      for (let i = 0, il = nodes.length; i < il; i++) {
        const node = nodes[i];
        const inputAccessor = inputAccessors[i];
        const outputAccessor = outputAccessors[i];
        const sampler = samplers[i];
        const target = targets[i];
        if (node === void 0) continue;
        if (node.updateMatrix) {
          node.updateMatrix();
        }
        const createdTracks = parser._createAnimationTracks(node, inputAccessor, outputAccessor, sampler, target);
        if (createdTracks) {
          for (let k = 0; k < createdTracks.length; k++) {
            tracks.push(createdTracks[k]);
          }
        }
      }
      return new AnimationClip(animationName, void 0, tracks);
    });
  }
  createNodeMesh(nodeIndex) {
    const json = this.json;
    const parser = this;
    const nodeDef = json.nodes[nodeIndex];
    if (nodeDef.mesh === void 0) return null;
    return parser.getDependency("mesh", nodeDef.mesh).then(function(mesh) {
      const node = parser._getNodeRef(parser.meshCache, nodeDef.mesh, mesh);
      if (nodeDef.weights !== void 0) {
        node.traverse(function(o) {
          if (!o.isMesh) return;
          for (let i = 0, il = nodeDef.weights.length; i < il; i++) {
            o.morphTargetInfluences[i] = nodeDef.weights[i];
          }
        });
      }
      return node;
    });
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#nodes-and-hierarchy
   * @param {number} nodeIndex
   * @return {Promise<Object3D>}
   */
  loadNode(nodeIndex) {
    const json = this.json;
    const parser = this;
    const nodeDef = json.nodes[nodeIndex];
    const nodePending = parser._loadNodeShallow(nodeIndex);
    const childPending = [];
    const childrenDef = nodeDef.children || [];
    for (let i = 0, il = childrenDef.length; i < il; i++) {
      childPending.push(parser.getDependency("node", childrenDef[i]));
    }
    const skeletonPending = nodeDef.skin === void 0 ? Promise.resolve(null) : parser.getDependency("skin", nodeDef.skin);
    return Promise.all([
      nodePending,
      Promise.all(childPending),
      skeletonPending
    ]).then(function(results) {
      const node = results[0];
      const children = results[1];
      const skeleton = results[2];
      if (skeleton !== null) {
        node.traverse(function(mesh) {
          if (!mesh.isSkinnedMesh) return;
          mesh.bind(skeleton, _identityMatrix2);
        });
      }
      for (let i = 0, il = children.length; i < il; i++) {
        node.add(children[i]);
      }
      return node;
    });
  }
  // ._loadNodeShallow() parses a single node.
  // skin and child nodes are created and added in .loadNode() (no '_' prefix).
  _loadNodeShallow(nodeIndex) {
    const json = this.json;
    const extensions = this.extensions;
    const parser = this;
    if (this.nodeCache[nodeIndex] !== void 0) {
      return this.nodeCache[nodeIndex];
    }
    const nodeDef = json.nodes[nodeIndex];
    const nodeName = nodeDef.name ? parser.createUniqueName(nodeDef.name) : "";
    const pending = [];
    const meshPromise = parser._invokeOne(function(ext) {
      return ext.createNodeMesh && ext.createNodeMesh(nodeIndex);
    });
    if (meshPromise) {
      pending.push(meshPromise);
    }
    if (nodeDef.camera !== void 0) {
      pending.push(parser.getDependency("camera", nodeDef.camera).then(function(camera) {
        return parser._getNodeRef(parser.cameraCache, nodeDef.camera, camera);
      }));
    }
    parser._invokeAll(function(ext) {
      return ext.createNodeAttachment && ext.createNodeAttachment(nodeIndex);
    }).forEach(function(promise) {
      pending.push(promise);
    });
    this.nodeCache[nodeIndex] = Promise.all(pending).then(function(objects) {
      let node;
      if (nodeDef.isBone === true) {
        node = new Bone();
      } else if (objects.length > 1) {
        node = new Group();
      } else if (objects.length === 1) {
        node = objects[0];
      } else {
        node = new Object3D();
      }
      if (node !== objects[0]) {
        for (let i = 0, il = objects.length; i < il; i++) {
          node.add(objects[i]);
        }
      }
      if (nodeDef.name) {
        node.userData.name = nodeDef.name;
        node.name = nodeName;
      }
      assignExtrasToUserData(node, nodeDef);
      if (nodeDef.extensions) addUnknownExtensionsToUserData(extensions, node, nodeDef);
      if (nodeDef.matrix !== void 0) {
        const matrix = new Matrix4();
        matrix.fromArray(nodeDef.matrix);
        node.applyMatrix4(matrix);
      } else {
        if (nodeDef.translation !== void 0) {
          node.position.fromArray(nodeDef.translation);
        }
        if (nodeDef.rotation !== void 0) {
          node.quaternion.fromArray(nodeDef.rotation);
        }
        if (nodeDef.scale !== void 0) {
          node.scale.fromArray(nodeDef.scale);
        }
      }
      if (!parser.associations.has(node)) {
        parser.associations.set(node, {});
      }
      parser.associations.get(node).nodes = nodeIndex;
      return node;
    });
    return this.nodeCache[nodeIndex];
  }
  /**
   * Specification: https://github.com/KhronosGroup/glTF/tree/master/specification/2.0#scenes
   * @param {number} sceneIndex
   * @return {Promise<Group>}
   */
  loadScene(sceneIndex) {
    const extensions = this.extensions;
    const sceneDef = this.json.scenes[sceneIndex];
    const parser = this;
    const scene = new Group();
    if (sceneDef.name) scene.name = parser.createUniqueName(sceneDef.name);
    assignExtrasToUserData(scene, sceneDef);
    if (sceneDef.extensions) addUnknownExtensionsToUserData(extensions, scene, sceneDef);
    const nodeIds = sceneDef.nodes || [];
    const pending = [];
    for (let i = 0, il = nodeIds.length; i < il; i++) {
      pending.push(parser.getDependency("node", nodeIds[i]));
    }
    return Promise.all(pending).then(function(nodes) {
      for (let i = 0, il = nodes.length; i < il; i++) {
        scene.add(nodes[i]);
      }
      const reduceAssociations = (node) => {
        const reducedAssociations = /* @__PURE__ */ new Map();
        for (const [key, value] of parser.associations) {
          if (key instanceof Material || key instanceof Texture) {
            reducedAssociations.set(key, value);
          }
        }
        node.traverse((node2) => {
          const mappings = parser.associations.get(node2);
          if (mappings != null) {
            reducedAssociations.set(node2, mappings);
          }
        });
        return reducedAssociations;
      };
      parser.associations = reduceAssociations(scene);
      return scene;
    });
  }
  _createAnimationTracks(node, inputAccessor, outputAccessor, sampler, target) {
    const tracks = [];
    const targetName = node.name ? node.name : node.uuid;
    const targetNames = [];
    if (PATH_PROPERTIES[target.path] === PATH_PROPERTIES.weights) {
      node.traverse(function(object) {
        if (object.morphTargetInfluences) {
          targetNames.push(object.name ? object.name : object.uuid);
        }
      });
    } else {
      targetNames.push(targetName);
    }
    let TypedKeyframeTrack;
    switch (PATH_PROPERTIES[target.path]) {
      case PATH_PROPERTIES.weights:
        TypedKeyframeTrack = NumberKeyframeTrack;
        break;
      case PATH_PROPERTIES.rotation:
        TypedKeyframeTrack = QuaternionKeyframeTrack;
        break;
      case PATH_PROPERTIES.position:
      case PATH_PROPERTIES.scale:
        TypedKeyframeTrack = VectorKeyframeTrack;
        break;
      default:
        switch (outputAccessor.itemSize) {
          case 1:
            TypedKeyframeTrack = NumberKeyframeTrack;
            break;
          case 2:
          case 3:
          default:
            TypedKeyframeTrack = VectorKeyframeTrack;
            break;
        }
        break;
    }
    const interpolation = sampler.interpolation !== void 0 ? INTERPOLATION[sampler.interpolation] : InterpolateLinear;
    const outputArray = this._getArrayFromAccessor(outputAccessor);
    for (let j = 0, jl = targetNames.length; j < jl; j++) {
      const track = new TypedKeyframeTrack(
        targetNames[j] + "." + PATH_PROPERTIES[target.path],
        inputAccessor.array,
        outputArray,
        interpolation
      );
      if (sampler.interpolation === "CUBICSPLINE") {
        this._createCubicSplineTrackInterpolant(track);
      }
      tracks.push(track);
    }
    return tracks;
  }
  _getArrayFromAccessor(accessor) {
    let outputArray = accessor.array;
    if (accessor.normalized) {
      const scale = getNormalizedComponentScale(outputArray.constructor);
      const scaled = new Float32Array(outputArray.length);
      for (let j = 0, jl = outputArray.length; j < jl; j++) {
        scaled[j] = outputArray[j] * scale;
      }
      outputArray = scaled;
    }
    return outputArray;
  }
  _createCubicSplineTrackInterpolant(track) {
    track.createInterpolant = function InterpolantFactoryMethodGLTFCubicSpline(result) {
      const interpolantType = this instanceof QuaternionKeyframeTrack ? GLTFCubicSplineQuaternionInterpolant : GLTFCubicSplineInterpolant;
      return new interpolantType(this.times, this.values, this.getValueSize() / 3, result);
    };
    track.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline = true;
  }
};
function computeBounds(geometry, primitiveDef, parser) {
  const attributes = primitiveDef.attributes;
  const box = new Box3();
  if (attributes.POSITION !== void 0) {
    const accessor = parser.json.accessors[attributes.POSITION];
    const min = accessor.min;
    const max = accessor.max;
    if (min !== void 0 && max !== void 0) {
      box.set(
        new Vector3(min[0], min[1], min[2]),
        new Vector3(max[0], max[1], max[2])
      );
      if (accessor.normalized) {
        const boxScale = getNormalizedComponentScale(WEBGL_COMPONENT_TYPES[accessor.componentType]);
        box.min.multiplyScalar(boxScale);
        box.max.multiplyScalar(boxScale);
      }
    } else {
      console.warn("THREE.GLTFLoader: Missing min/max properties for accessor POSITION.");
      return;
    }
  } else {
    return;
  }
  const targets = primitiveDef.targets;
  if (targets !== void 0) {
    const maxDisplacement = new Vector3();
    const vector = new Vector3();
    for (let i = 0, il = targets.length; i < il; i++) {
      const target = targets[i];
      if (target.POSITION !== void 0) {
        const accessor = parser.json.accessors[target.POSITION];
        const min = accessor.min;
        const max = accessor.max;
        if (min !== void 0 && max !== void 0) {
          vector.setX(Math.max(Math.abs(min[0]), Math.abs(max[0])));
          vector.setY(Math.max(Math.abs(min[1]), Math.abs(max[1])));
          vector.setZ(Math.max(Math.abs(min[2]), Math.abs(max[2])));
          if (accessor.normalized) {
            const boxScale = getNormalizedComponentScale(WEBGL_COMPONENT_TYPES[accessor.componentType]);
            vector.multiplyScalar(boxScale);
          }
          maxDisplacement.max(vector);
        } else {
          console.warn("THREE.GLTFLoader: Missing min/max properties for accessor POSITION.");
        }
      }
    }
    box.expandByVector(maxDisplacement);
  }
  geometry.boundingBox = box;
  const sphere = new Sphere();
  box.getCenter(sphere.center);
  sphere.radius = box.min.distanceTo(box.max) / 2;
  geometry.boundingSphere = sphere;
}
function addPrimitiveAttributes(geometry, primitiveDef, parser) {
  const attributes = primitiveDef.attributes;
  const pending = [];
  function assignAttributeAccessor(accessorIndex, attributeName) {
    return parser.getDependency("accessor", accessorIndex).then(function(accessor) {
      geometry.setAttribute(attributeName, accessor);
    });
  }
  for (const gltfAttributeName in attributes) {
    const threeAttributeName = ATTRIBUTES[gltfAttributeName] || gltfAttributeName.toLowerCase();
    if (threeAttributeName in geometry.attributes) continue;
    pending.push(assignAttributeAccessor(attributes[gltfAttributeName], threeAttributeName));
  }
  if (primitiveDef.indices !== void 0 && !geometry.index) {
    const accessor = parser.getDependency("accessor", primitiveDef.indices).then(function(accessor2) {
      geometry.setIndex(accessor2);
    });
    pending.push(accessor);
  }
  if (ColorManagement.workingColorSpace !== LinearSRGBColorSpace && "COLOR_0" in attributes) {
    console.warn(`THREE.GLTFLoader: Converting vertex colors from "srgb-linear" to "${ColorManagement.workingColorSpace}" not supported.`);
  }
  assignExtrasToUserData(geometry, primitiveDef);
  computeBounds(geometry, primitiveDef, parser);
  return Promise.all(pending).then(function() {
    return primitiveDef.targets !== void 0 ? addMorphTargets(geometry, primitiveDef.targets, parser) : geometry;
  });
}

// node_modules/three/examples/jsm/loaders/DRACOLoader.js
var _taskCache = /* @__PURE__ */ new WeakMap();
var DRACOLoader = class extends Loader {
  constructor(manager) {
    super(manager);
    this.decoderPath = "";
    this.decoderConfig = {};
    this.decoderBinary = null;
    this.decoderPending = null;
    this.workerLimit = 4;
    this.workerPool = [];
    this.workerNextTaskID = 1;
    this.workerSourceURL = "";
    this.defaultAttributeIDs = {
      position: "POSITION",
      normal: "NORMAL",
      color: "COLOR",
      uv: "TEX_COORD"
    };
    this.defaultAttributeTypes = {
      position: "Float32Array",
      normal: "Float32Array",
      color: "Float32Array",
      uv: "Float32Array"
    };
  }
  setDecoderPath(path) {
    this.decoderPath = path;
    return this;
  }
  setDecoderConfig(config3) {
    this.decoderConfig = config3;
    return this;
  }
  setWorkerLimit(workerLimit) {
    this.workerLimit = workerLimit;
    return this;
  }
  load(url, onLoad, onProgress, onError) {
    const loader2 = new FileLoader(this.manager);
    loader2.setPath(this.path);
    loader2.setResponseType("arraybuffer");
    loader2.setRequestHeader(this.requestHeader);
    loader2.setWithCredentials(this.withCredentials);
    loader2.load(url, (buffer) => {
      this.parse(buffer, onLoad, onError);
    }, onProgress, onError);
  }
  parse(buffer, onLoad, onError = () => {
  }) {
    this.decodeDracoFile(buffer, onLoad, null, null, SRGBColorSpace, onError).catch(onError);
  }
  decodeDracoFile(buffer, callback, attributeIDs, attributeTypes, vertexColorSpace = LinearSRGBColorSpace, onError = () => {
  }) {
    const taskConfig = {
      attributeIDs: attributeIDs || this.defaultAttributeIDs,
      attributeTypes: attributeTypes || this.defaultAttributeTypes,
      useUniqueIDs: !!attributeIDs,
      vertexColorSpace
    };
    return this.decodeGeometry(buffer, taskConfig).then(callback).catch(onError);
  }
  decodeGeometry(buffer, taskConfig) {
    const taskKey = JSON.stringify(taskConfig);
    if (_taskCache.has(buffer)) {
      const cachedTask = _taskCache.get(buffer);
      if (cachedTask.key === taskKey) {
        return cachedTask.promise;
      } else if (buffer.byteLength === 0) {
        throw new Error(
          "THREE.DRACOLoader: Unable to re-decode a buffer with different settings. Buffer has already been transferred."
        );
      }
    }
    let worker;
    const taskID = this.workerNextTaskID++;
    const taskCost = buffer.byteLength;
    const geometryPending = this._getWorker(taskID, taskCost).then((_worker) => {
      worker = _worker;
      return new Promise((resolve, reject) => {
        worker._callbacks[taskID] = { resolve, reject };
        worker.postMessage({ type: "decode", id: taskID, taskConfig, buffer }, [buffer]);
      });
    }).then((message) => this._createGeometry(message.geometry));
    geometryPending.catch(() => true).then(() => {
      if (worker && taskID) {
        this._releaseTask(worker, taskID);
      }
    });
    _taskCache.set(buffer, {
      key: taskKey,
      promise: geometryPending
    });
    return geometryPending;
  }
  _createGeometry(geometryData) {
    const geometry = new BufferGeometry();
    if (geometryData.index) {
      geometry.setIndex(new BufferAttribute(geometryData.index.array, 1));
    }
    for (let i = 0; i < geometryData.attributes.length; i++) {
      const result = geometryData.attributes[i];
      const name = result.name;
      const array = result.array;
      const itemSize = result.itemSize;
      const attribute = new BufferAttribute(array, itemSize);
      if (name === "color") {
        this._assignVertexColorSpace(attribute, result.vertexColorSpace);
        attribute.normalized = array instanceof Float32Array === false;
      }
      geometry.setAttribute(name, attribute);
    }
    return geometry;
  }
  _assignVertexColorSpace(attribute, inputColorSpace) {
    if (inputColorSpace !== SRGBColorSpace) return;
    const _color2 = new Color();
    for (let i = 0, il = attribute.count; i < il; i++) {
      _color2.fromBufferAttribute(attribute, i);
      ColorManagement.toWorkingColorSpace(_color2, SRGBColorSpace);
      attribute.setXYZ(i, _color2.r, _color2.g, _color2.b);
    }
  }
  _loadLibrary(url, responseType) {
    const loader2 = new FileLoader(this.manager);
    loader2.setPath(this.decoderPath);
    loader2.setResponseType(responseType);
    loader2.setWithCredentials(this.withCredentials);
    return new Promise((resolve, reject) => {
      loader2.load(url, resolve, void 0, reject);
    });
  }
  preload() {
    this._initDecoder();
    return this;
  }
  _initDecoder() {
    if (this.decoderPending) return this.decoderPending;
    const useJS = typeof WebAssembly !== "object" || this.decoderConfig.type === "js";
    const librariesPending = [];
    if (useJS) {
      librariesPending.push(this._loadLibrary("draco_decoder.js", "text"));
    } else {
      librariesPending.push(this._loadLibrary("draco_wasm_wrapper.js", "text"));
      librariesPending.push(this._loadLibrary("draco_decoder.wasm", "arraybuffer"));
    }
    this.decoderPending = Promise.all(librariesPending).then((libraries) => {
      const jsContent = libraries[0];
      if (!useJS) {
        this.decoderConfig.wasmBinary = libraries[1];
      }
      const fn = DRACOWorker.toString();
      const body = [
        "/* draco decoder */",
        jsContent,
        "",
        "/* worker */",
        fn.substring(fn.indexOf("{") + 1, fn.lastIndexOf("}"))
      ].join("\n");
      this.workerSourceURL = URL.createObjectURL(new Blob([body]));
    });
    return this.decoderPending;
  }
  _getWorker(taskID, taskCost) {
    return this._initDecoder().then(() => {
      if (this.workerPool.length < this.workerLimit) {
        const worker2 = new Worker(this.workerSourceURL);
        worker2._callbacks = {};
        worker2._taskCosts = {};
        worker2._taskLoad = 0;
        worker2.postMessage({ type: "init", decoderConfig: this.decoderConfig });
        worker2.onmessage = function(e) {
          const message = e.data;
          switch (message.type) {
            case "decode":
              worker2._callbacks[message.id].resolve(message);
              break;
            case "error":
              worker2._callbacks[message.id].reject(message);
              break;
            default:
              console.error('THREE.DRACOLoader: Unexpected message, "' + message.type + '"');
          }
        };
        this.workerPool.push(worker2);
      } else {
        this.workerPool.sort(function(a, b) {
          return a._taskLoad > b._taskLoad ? -1 : 1;
        });
      }
      const worker = this.workerPool[this.workerPool.length - 1];
      worker._taskCosts[taskID] = taskCost;
      worker._taskLoad += taskCost;
      return worker;
    });
  }
  _releaseTask(worker, taskID) {
    worker._taskLoad -= worker._taskCosts[taskID];
    delete worker._callbacks[taskID];
    delete worker._taskCosts[taskID];
  }
  debug() {
    console.log("Task load: ", this.workerPool.map((worker) => worker._taskLoad));
  }
  dispose() {
    for (let i = 0; i < this.workerPool.length; ++i) {
      this.workerPool[i].terminate();
    }
    this.workerPool.length = 0;
    if (this.workerSourceURL !== "") {
      URL.revokeObjectURL(this.workerSourceURL);
    }
    return this;
  }
};
function DRACOWorker() {
  let decoderConfig;
  let decoderPending;
  onmessage = function(e) {
    const message = e.data;
    switch (message.type) {
      case "init":
        decoderConfig = message.decoderConfig;
        decoderPending = new Promise(function(resolve) {
          decoderConfig.onModuleLoaded = function(draco) {
            resolve({ draco });
          };
          DracoDecoderModule(decoderConfig);
        });
        break;
      case "decode":
        const buffer = message.buffer;
        const taskConfig = message.taskConfig;
        decoderPending.then((module) => {
          const draco = module.draco;
          const decoder = new draco.Decoder();
          try {
            const geometry = decodeGeometry(draco, decoder, new Int8Array(buffer), taskConfig);
            const buffers = geometry.attributes.map((attr) => attr.array.buffer);
            if (geometry.index) buffers.push(geometry.index.array.buffer);
            self.postMessage({ type: "decode", id: message.id, geometry }, buffers);
          } catch (error) {
            console.error(error);
            self.postMessage({ type: "error", id: message.id, error: error.message });
          } finally {
            draco.destroy(decoder);
          }
        });
        break;
    }
  };
  function decodeGeometry(draco, decoder, array, taskConfig) {
    const attributeIDs = taskConfig.attributeIDs;
    const attributeTypes = taskConfig.attributeTypes;
    let dracoGeometry;
    let decodingStatus;
    const geometryType = decoder.GetEncodedGeometryType(array);
    if (geometryType === draco.TRIANGULAR_MESH) {
      dracoGeometry = new draco.Mesh();
      decodingStatus = decoder.DecodeArrayToMesh(array, array.byteLength, dracoGeometry);
    } else if (geometryType === draco.POINT_CLOUD) {
      dracoGeometry = new draco.PointCloud();
      decodingStatus = decoder.DecodeArrayToPointCloud(array, array.byteLength, dracoGeometry);
    } else {
      throw new Error("THREE.DRACOLoader: Unexpected geometry type.");
    }
    if (!decodingStatus.ok() || dracoGeometry.ptr === 0) {
      throw new Error("THREE.DRACOLoader: Decoding failed: " + decodingStatus.error_msg());
    }
    const geometry = { index: null, attributes: [] };
    for (const attributeName in attributeIDs) {
      const attributeType = self[attributeTypes[attributeName]];
      let attribute;
      let attributeID;
      if (taskConfig.useUniqueIDs) {
        attributeID = attributeIDs[attributeName];
        attribute = decoder.GetAttributeByUniqueId(dracoGeometry, attributeID);
      } else {
        attributeID = decoder.GetAttributeId(dracoGeometry, draco[attributeIDs[attributeName]]);
        if (attributeID === -1) continue;
        attribute = decoder.GetAttribute(dracoGeometry, attributeID);
      }
      const attributeResult = decodeAttribute(draco, decoder, dracoGeometry, attributeName, attributeType, attribute);
      if (attributeName === "color") {
        attributeResult.vertexColorSpace = taskConfig.vertexColorSpace;
      }
      geometry.attributes.push(attributeResult);
    }
    if (geometryType === draco.TRIANGULAR_MESH) {
      geometry.index = decodeIndex(draco, decoder, dracoGeometry);
    }
    draco.destroy(dracoGeometry);
    return geometry;
  }
  function decodeIndex(draco, decoder, dracoGeometry) {
    const numFaces = dracoGeometry.num_faces();
    const numIndices = numFaces * 3;
    const byteLength = numIndices * 4;
    const ptr = draco._malloc(byteLength);
    decoder.GetTrianglesUInt32Array(dracoGeometry, byteLength, ptr);
    const index = new Uint32Array(draco.HEAPF32.buffer, ptr, numIndices).slice();
    draco._free(ptr);
    return { array: index, itemSize: 1 };
  }
  function decodeAttribute(draco, decoder, dracoGeometry, attributeName, attributeType, attribute) {
    const numComponents = attribute.num_components();
    const numPoints = dracoGeometry.num_points();
    const numValues = numPoints * numComponents;
    const byteLength = numValues * attributeType.BYTES_PER_ELEMENT;
    const dataType = getDracoDataType(draco, attributeType);
    const ptr = draco._malloc(byteLength);
    decoder.GetAttributeDataArrayForAllPoints(dracoGeometry, attribute, dataType, byteLength, ptr);
    const array = new attributeType(draco.HEAPF32.buffer, ptr, numValues).slice();
    draco._free(ptr);
    return {
      name: attributeName,
      array,
      itemSize: numComponents
    };
  }
  function getDracoDataType(draco, attributeType) {
    switch (attributeType) {
      case Float32Array:
        return draco.DT_FLOAT32;
      case Int8Array:
        return draco.DT_INT8;
      case Int16Array:
        return draco.DT_INT16;
      case Int32Array:
        return draco.DT_INT32;
      case Uint8Array:
        return draco.DT_UINT8;
      case Uint16Array:
        return draco.DT_UINT16;
      case Uint32Array:
        return draco.DT_UINT32;
    }
  }
}

// node_modules/gsap/gsap-core.js
function _assertThisInitialized(self2) {
  if (self2 === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }
  return self2;
}
function _inheritsLoose(subClass, superClass) {
  subClass.prototype = Object.create(superClass.prototype);
  subClass.prototype.constructor = subClass;
  subClass.__proto__ = superClass;
}
var _config = {
  autoSleep: 120,
  force3D: "auto",
  nullTargetWarn: 1,
  units: {
    lineHeight: ""
  }
};
var _defaults = {
  duration: 0.5,
  overwrite: false,
  delay: 0
};
var _suppressOverwrites;
var _reverting;
var _context;
var _bigNum = 1e8;
var _tinyNum = 1 / _bigNum;
var _2PI = Math.PI * 2;
var _HALF_PI = _2PI / 4;
var _gsID = 0;
var _sqrt = Math.sqrt;
var _cos = Math.cos;
var _sin = Math.sin;
var _isString = function _isString2(value) {
  return typeof value === "string";
};
var _isFunction = function _isFunction2(value) {
  return typeof value === "function";
};
var _isNumber = function _isNumber2(value) {
  return typeof value === "number";
};
var _isUndefined = function _isUndefined2(value) {
  return typeof value === "undefined";
};
var _isObject = function _isObject2(value) {
  return typeof value === "object";
};
var _isNotFalse = function _isNotFalse2(value) {
  return value !== false;
};
var _windowExists = function _windowExists2() {
  return typeof window !== "undefined";
};
var _isFuncOrString = function _isFuncOrString2(value) {
  return _isFunction(value) || _isString(value);
};
var _isTypedArray = typeof ArrayBuffer === "function" && ArrayBuffer.isView || function() {
};
var _isArray = Array.isArray;
var _strictNumExp = /(?:-?\.?\d|\.)+/gi;
var _numExp = /[-+=.]*\d+[.e\-+]*\d*[e\-+]*\d*/g;
var _numWithUnitExp = /[-+=.]*\d+[.e-]*\d*[a-z%]*/g;
var _complexStringNumExp = /[-+=.]*\d+\.?\d*(?:e-|e\+)?\d*/gi;
var _relExp = /[+-]=-?[.\d]+/;
var _delimitedValueExp = /[^,'"\[\]\s]+/gi;
var _unitExp = /^[+\-=e\s\d]*\d+[.\d]*([a-z]*|%)\s*$/i;
var _globalTimeline;
var _win;
var _coreInitted;
var _doc;
var _globals = {};
var _installScope = {};
var _coreReady;
var _install = function _install2(scope) {
  return (_installScope = _merge(scope, _globals)) && gsap;
};
var _missingPlugin = function _missingPlugin2(property, value) {
  return console.warn("Invalid property", property, "set to", value, "Missing plugin? gsap.registerPlugin()");
};
var _warn = function _warn2(message, suppress) {
  return !suppress && console.warn(message);
};
var _addGlobal = function _addGlobal2(name, obj) {
  return name && (_globals[name] = obj) && _installScope && (_installScope[name] = obj) || _globals;
};
var _emptyFunc = function _emptyFunc2() {
  return 0;
};
var _startAtRevertConfig = {
  suppressEvents: true,
  isStart: true,
  kill: false
};
var _revertConfigNoKill = {
  suppressEvents: true,
  kill: false
};
var _revertConfig = {
  suppressEvents: true
};
var _reservedProps = {};
var _lazyTweens = [];
var _lazyLookup = {};
var _lastRenderedFrame;
var _plugins = {};
var _effects = {};
var _nextGCFrame = 30;
var _harnessPlugins = [];
var _callbackNames = "";
var _harness = function _harness2(targets) {
  var target = targets[0], harnessPlugin, i;
  _isObject(target) || _isFunction(target) || (targets = [targets]);
  if (!(harnessPlugin = (target._gsap || {}).harness)) {
    i = _harnessPlugins.length;
    while (i-- && !_harnessPlugins[i].targetTest(target)) {
    }
    harnessPlugin = _harnessPlugins[i];
  }
  i = targets.length;
  while (i--) {
    targets[i] && (targets[i]._gsap || (targets[i]._gsap = new GSCache(targets[i], harnessPlugin))) || targets.splice(i, 1);
  }
  return targets;
};
var _getCache = function _getCache2(target) {
  return target._gsap || _harness(toArray(target))[0]._gsap;
};
var _getProperty = function _getProperty2(target, property, v) {
  return (v = target[property]) && _isFunction(v) ? target[property]() : _isUndefined(v) && target.getAttribute && target.getAttribute(property) || v;
};
var _forEachName = function _forEachName2(names, func) {
  return (names = names.split(",")).forEach(func) || names;
};
var _round = function _round2(value) {
  return Math.round(value * 1e5) / 1e5 || 0;
};
var _roundPrecise = function _roundPrecise2(value) {
  return Math.round(value * 1e7) / 1e7 || 0;
};
var _parseRelative = function _parseRelative2(start, value) {
  var operator = value.charAt(0), end = parseFloat(value.substr(2));
  start = parseFloat(start);
  return operator === "+" ? start + end : operator === "-" ? start - end : operator === "*" ? start * end : start / end;
};
var _arrayContainsAny = function _arrayContainsAny2(toSearch, toFind) {
  var l = toFind.length, i = 0;
  for (; toSearch.indexOf(toFind[i]) < 0 && ++i < l; ) {
  }
  return i < l;
};
var _lazyRender = function _lazyRender2() {
  var l = _lazyTweens.length, a = _lazyTweens.slice(0), i, tween;
  _lazyLookup = {};
  _lazyTweens.length = 0;
  for (i = 0; i < l; i++) {
    tween = a[i];
    tween && tween._lazy && (tween.render(tween._lazy[0], tween._lazy[1], true)._lazy = 0);
  }
};
var _lazySafeRender = function _lazySafeRender2(animation, time, suppressEvents, force) {
  _lazyTweens.length && !_reverting && _lazyRender();
  animation.render(time, suppressEvents, force || _reverting && time < 0 && (animation._initted || animation._startAt));
  _lazyTweens.length && !_reverting && _lazyRender();
};
var _numericIfPossible = function _numericIfPossible2(value) {
  var n = parseFloat(value);
  return (n || n === 0) && (value + "").match(_delimitedValueExp).length < 2 ? n : _isString(value) ? value.trim() : value;
};
var _passThrough = function _passThrough2(p) {
  return p;
};
var _setDefaults = function _setDefaults2(obj, defaults2) {
  for (var p in defaults2) {
    p in obj || (obj[p] = defaults2[p]);
  }
  return obj;
};
var _setKeyframeDefaults = function _setKeyframeDefaults2(excludeDuration) {
  return function(obj, defaults2) {
    for (var p in defaults2) {
      p in obj || p === "duration" && excludeDuration || p === "ease" || (obj[p] = defaults2[p]);
    }
  };
};
var _merge = function _merge2(base, toMerge) {
  for (var p in toMerge) {
    base[p] = toMerge[p];
  }
  return base;
};
var _mergeDeep = function _mergeDeep2(base, toMerge) {
  for (var p in toMerge) {
    p !== "__proto__" && p !== "constructor" && p !== "prototype" && (base[p] = _isObject(toMerge[p]) ? _mergeDeep2(base[p] || (base[p] = {}), toMerge[p]) : toMerge[p]);
  }
  return base;
};
var _copyExcluding = function _copyExcluding2(obj, excluding) {
  var copy = {}, p;
  for (p in obj) {
    p in excluding || (copy[p] = obj[p]);
  }
  return copy;
};
var _inheritDefaults = function _inheritDefaults2(vars) {
  var parent = vars.parent || _globalTimeline, func = vars.keyframes ? _setKeyframeDefaults(_isArray(vars.keyframes)) : _setDefaults;
  if (_isNotFalse(vars.inherit)) {
    while (parent) {
      func(vars, parent.vars.defaults);
      parent = parent.parent || parent._dp;
    }
  }
  return vars;
};
var _arraysMatch = function _arraysMatch2(a1, a2) {
  var i = a1.length, match = i === a2.length;
  while (match && i-- && a1[i] === a2[i]) {
  }
  return i < 0;
};
var _addLinkedListItem = function _addLinkedListItem2(parent, child, firstProp, lastProp, sortBy) {
  if (firstProp === void 0) {
    firstProp = "_first";
  }
  if (lastProp === void 0) {
    lastProp = "_last";
  }
  var prev = parent[lastProp], t;
  if (sortBy) {
    t = child[sortBy];
    while (prev && prev[sortBy] > t) {
      prev = prev._prev;
    }
  }
  if (prev) {
    child._next = prev._next;
    prev._next = child;
  } else {
    child._next = parent[firstProp];
    parent[firstProp] = child;
  }
  if (child._next) {
    child._next._prev = child;
  } else {
    parent[lastProp] = child;
  }
  child._prev = prev;
  child.parent = child._dp = parent;
  return child;
};
var _removeLinkedListItem = function _removeLinkedListItem2(parent, child, firstProp, lastProp) {
  if (firstProp === void 0) {
    firstProp = "_first";
  }
  if (lastProp === void 0) {
    lastProp = "_last";
  }
  var prev = child._prev, next = child._next;
  if (prev) {
    prev._next = next;
  } else if (parent[firstProp] === child) {
    parent[firstProp] = next;
  }
  if (next) {
    next._prev = prev;
  } else if (parent[lastProp] === child) {
    parent[lastProp] = prev;
  }
  child._next = child._prev = child.parent = null;
};
var _removeFromParent = function _removeFromParent2(child, onlyIfParentHasAutoRemove) {
  child.parent && (!onlyIfParentHasAutoRemove || child.parent.autoRemoveChildren) && child.parent.remove && child.parent.remove(child);
  child._act = 0;
};
var _uncache = function _uncache2(animation, child) {
  if (animation && (!child || child._end > animation._dur || child._start < 0)) {
    var a = animation;
    while (a) {
      a._dirty = 1;
      a = a.parent;
    }
  }
  return animation;
};
var _recacheAncestors = function _recacheAncestors2(animation) {
  var parent = animation.parent;
  while (parent && parent.parent) {
    parent._dirty = 1;
    parent.totalDuration();
    parent = parent.parent;
  }
  return animation;
};
var _rewindStartAt = function _rewindStartAt2(tween, totalTime, suppressEvents, force) {
  return tween._startAt && (_reverting ? tween._startAt.revert(_revertConfigNoKill) : tween.vars.immediateRender && !tween.vars.autoRevert || tween._startAt.render(totalTime, true, force));
};
var _hasNoPausedAncestors = function _hasNoPausedAncestors2(animation) {
  return !animation || animation._ts && _hasNoPausedAncestors2(animation.parent);
};
var _elapsedCycleDuration = function _elapsedCycleDuration2(animation) {
  return animation._repeat ? _animationCycle(animation._tTime, animation = animation.duration() + animation._rDelay) * animation : 0;
};
var _animationCycle = function _animationCycle2(tTime, cycleDuration) {
  var whole = Math.floor(tTime /= cycleDuration);
  return tTime && whole === tTime ? whole - 1 : whole;
};
var _parentToChildTotalTime = function _parentToChildTotalTime2(parentTime, child) {
  return (parentTime - child._start) * child._ts + (child._ts >= 0 ? 0 : child._dirty ? child.totalDuration() : child._tDur);
};
var _setEnd = function _setEnd2(animation) {
  return animation._end = _roundPrecise(animation._start + (animation._tDur / Math.abs(animation._ts || animation._rts || _tinyNum) || 0));
};
var _alignPlayhead = function _alignPlayhead2(animation, totalTime) {
  var parent = animation._dp;
  if (parent && parent.smoothChildTiming && animation._ts) {
    animation._start = _roundPrecise(parent._time - (animation._ts > 0 ? totalTime / animation._ts : ((animation._dirty ? animation.totalDuration() : animation._tDur) - totalTime) / -animation._ts));
    _setEnd(animation);
    parent._dirty || _uncache(parent, animation);
  }
  return animation;
};
var _postAddChecks = function _postAddChecks2(timeline2, child) {
  var t;
  if (child._time || !child._dur && child._initted || child._start < timeline2._time && (child._dur || !child.add)) {
    t = _parentToChildTotalTime(timeline2.rawTime(), child);
    if (!child._dur || _clamp(0, child.totalDuration(), t) - child._tTime > _tinyNum) {
      child.render(t, true);
    }
  }
  if (_uncache(timeline2, child)._dp && timeline2._initted && timeline2._time >= timeline2._dur && timeline2._ts) {
    if (timeline2._dur < timeline2.duration()) {
      t = timeline2;
      while (t._dp) {
        t.rawTime() >= 0 && t.totalTime(t._tTime);
        t = t._dp;
      }
    }
    timeline2._zTime = -_tinyNum;
  }
};
var _addToTimeline = function _addToTimeline2(timeline2, child, position, skipChecks) {
  child.parent && _removeFromParent(child);
  child._start = _roundPrecise((_isNumber(position) ? position : position || timeline2 !== _globalTimeline ? _parsePosition(timeline2, position, child) : timeline2._time) + child._delay);
  child._end = _roundPrecise(child._start + (child.totalDuration() / Math.abs(child.timeScale()) || 0));
  _addLinkedListItem(timeline2, child, "_first", "_last", timeline2._sort ? "_start" : 0);
  _isFromOrFromStart(child) || (timeline2._recent = child);
  skipChecks || _postAddChecks(timeline2, child);
  timeline2._ts < 0 && _alignPlayhead(timeline2, timeline2._tTime);
  return timeline2;
};
var _scrollTrigger = function _scrollTrigger2(animation, trigger) {
  return (_globals.ScrollTrigger || _missingPlugin("scrollTrigger", trigger)) && _globals.ScrollTrigger.create(trigger, animation);
};
var _attemptInitTween = function _attemptInitTween2(tween, time, force, suppressEvents, tTime) {
  _initTween(tween, time, tTime);
  if (!tween._initted) {
    return 1;
  }
  if (!force && tween._pt && !_reverting && (tween._dur && tween.vars.lazy !== false || !tween._dur && tween.vars.lazy) && _lastRenderedFrame !== _ticker.frame) {
    _lazyTweens.push(tween);
    tween._lazy = [tTime, suppressEvents];
    return 1;
  }
};
var _parentPlayheadIsBeforeStart = function _parentPlayheadIsBeforeStart2(_ref) {
  var parent = _ref.parent;
  return parent && parent._ts && parent._initted && !parent._lock && (parent.rawTime() < 0 || _parentPlayheadIsBeforeStart2(parent));
};
var _isFromOrFromStart = function _isFromOrFromStart2(_ref2) {
  var data = _ref2.data;
  return data === "isFromStart" || data === "isStart";
};
var _renderZeroDurationTween = function _renderZeroDurationTween2(tween, totalTime, suppressEvents, force) {
  var prevRatio = tween.ratio, ratio = totalTime < 0 || !totalTime && (!tween._start && _parentPlayheadIsBeforeStart(tween) && !(!tween._initted && _isFromOrFromStart(tween)) || (tween._ts < 0 || tween._dp._ts < 0) && !_isFromOrFromStart(tween)) ? 0 : 1, repeatDelay = tween._rDelay, tTime = 0, pt, iteration, prevIteration;
  if (repeatDelay && tween._repeat) {
    tTime = _clamp(0, tween._tDur, totalTime);
    iteration = _animationCycle(tTime, repeatDelay);
    tween._yoyo && iteration & 1 && (ratio = 1 - ratio);
    if (iteration !== _animationCycle(tween._tTime, repeatDelay)) {
      prevRatio = 1 - ratio;
      tween.vars.repeatRefresh && tween._initted && tween.invalidate();
    }
  }
  if (ratio !== prevRatio || _reverting || force || tween._zTime === _tinyNum || !totalTime && tween._zTime) {
    if (!tween._initted && _attemptInitTween(tween, totalTime, force, suppressEvents, tTime)) {
      return;
    }
    prevIteration = tween._zTime;
    tween._zTime = totalTime || (suppressEvents ? _tinyNum : 0);
    suppressEvents || (suppressEvents = totalTime && !prevIteration);
    tween.ratio = ratio;
    tween._from && (ratio = 1 - ratio);
    tween._time = 0;
    tween._tTime = tTime;
    pt = tween._pt;
    while (pt) {
      pt.r(ratio, pt.d);
      pt = pt._next;
    }
    totalTime < 0 && _rewindStartAt(tween, totalTime, suppressEvents, true);
    tween._onUpdate && !suppressEvents && _callback(tween, "onUpdate");
    tTime && tween._repeat && !suppressEvents && tween.parent && _callback(tween, "onRepeat");
    if ((totalTime >= tween._tDur || totalTime < 0) && tween.ratio === ratio) {
      ratio && _removeFromParent(tween, 1);
      if (!suppressEvents && !_reverting) {
        _callback(tween, ratio ? "onComplete" : "onReverseComplete", true);
        tween._prom && tween._prom();
      }
    }
  } else if (!tween._zTime) {
    tween._zTime = totalTime;
  }
};
var _findNextPauseTween = function _findNextPauseTween2(animation, prevTime, time) {
  var child;
  if (time > prevTime) {
    child = animation._first;
    while (child && child._start <= time) {
      if (child.data === "isPause" && child._start > prevTime) {
        return child;
      }
      child = child._next;
    }
  } else {
    child = animation._last;
    while (child && child._start >= time) {
      if (child.data === "isPause" && child._start < prevTime) {
        return child;
      }
      child = child._prev;
    }
  }
};
var _setDuration = function _setDuration2(animation, duration, skipUncache, leavePlayhead) {
  var repeat = animation._repeat, dur = _roundPrecise(duration) || 0, totalProgress = animation._tTime / animation._tDur;
  totalProgress && !leavePlayhead && (animation._time *= dur / animation._dur);
  animation._dur = dur;
  animation._tDur = !repeat ? dur : repeat < 0 ? 1e10 : _roundPrecise(dur * (repeat + 1) + animation._rDelay * repeat);
  totalProgress > 0 && !leavePlayhead && _alignPlayhead(animation, animation._tTime = animation._tDur * totalProgress);
  animation.parent && _setEnd(animation);
  skipUncache || _uncache(animation.parent, animation);
  return animation;
};
var _onUpdateTotalDuration = function _onUpdateTotalDuration2(animation) {
  return animation instanceof Timeline ? _uncache(animation) : _setDuration(animation, animation._dur);
};
var _zeroPosition = {
  _start: 0,
  endTime: _emptyFunc,
  totalDuration: _emptyFunc
};
var _parsePosition = function _parsePosition2(animation, position, percentAnimation) {
  var labels = animation.labels, recent = animation._recent || _zeroPosition, clippedDuration = animation.duration() >= _bigNum ? recent.endTime(false) : animation._dur, i, offset, isPercent;
  if (_isString(position) && (isNaN(position) || position in labels)) {
    offset = position.charAt(0);
    isPercent = position.substr(-1) === "%";
    i = position.indexOf("=");
    if (offset === "<" || offset === ">") {
      i >= 0 && (position = position.replace(/=/, ""));
      return (offset === "<" ? recent._start : recent.endTime(recent._repeat >= 0)) + (parseFloat(position.substr(1)) || 0) * (isPercent ? (i < 0 ? recent : percentAnimation).totalDuration() / 100 : 1);
    }
    if (i < 0) {
      position in labels || (labels[position] = clippedDuration);
      return labels[position];
    }
    offset = parseFloat(position.charAt(i - 1) + position.substr(i + 1));
    if (isPercent && percentAnimation) {
      offset = offset / 100 * (_isArray(percentAnimation) ? percentAnimation[0] : percentAnimation).totalDuration();
    }
    return i > 1 ? _parsePosition2(animation, position.substr(0, i - 1), percentAnimation) + offset : clippedDuration + offset;
  }
  return position == null ? clippedDuration : +position;
};
var _createTweenType = function _createTweenType2(type, params, timeline2) {
  var isLegacy = _isNumber(params[1]), varsIndex = (isLegacy ? 2 : 1) + (type < 2 ? 0 : 1), vars = params[varsIndex], irVars, parent;
  isLegacy && (vars.duration = params[1]);
  vars.parent = timeline2;
  if (type) {
    irVars = vars;
    parent = timeline2;
    while (parent && !("immediateRender" in irVars)) {
      irVars = parent.vars.defaults || {};
      parent = _isNotFalse(parent.vars.inherit) && parent.parent;
    }
    vars.immediateRender = _isNotFalse(irVars.immediateRender);
    type < 2 ? vars.runBackwards = 1 : vars.startAt = params[varsIndex - 1];
  }
  return new Tween(params[0], vars, params[varsIndex + 1]);
};
var _conditionalReturn = function _conditionalReturn2(value, func) {
  return value || value === 0 ? func(value) : func;
};
var _clamp = function _clamp2(min, max, value) {
  return value < min ? min : value > max ? max : value;
};
var getUnit = function getUnit2(value, v) {
  return !_isString(value) || !(v = _unitExp.exec(value)) ? "" : v[1];
};
var clamp2 = function clamp3(min, max, value) {
  return _conditionalReturn(value, function(v) {
    return _clamp(min, max, v);
  });
};
var _slice = [].slice;
var _isArrayLike = function _isArrayLike2(value, nonEmpty) {
  return value && _isObject(value) && "length" in value && (!nonEmpty && !value.length || value.length - 1 in value && _isObject(value[0])) && !value.nodeType && value !== _win;
};
var _flatten = function _flatten2(ar, leaveStrings, accumulator) {
  if (accumulator === void 0) {
    accumulator = [];
  }
  return ar.forEach(function(value) {
    var _accumulator;
    return _isString(value) && !leaveStrings || _isArrayLike(value, 1) ? (_accumulator = accumulator).push.apply(_accumulator, toArray(value)) : accumulator.push(value);
  }) || accumulator;
};
var toArray = function toArray2(value, scope, leaveStrings) {
  return _context && !scope && _context.selector ? _context.selector(value) : _isString(value) && !leaveStrings && (_coreInitted || !_wake()) ? _slice.call((scope || _doc).querySelectorAll(value), 0) : _isArray(value) ? _flatten(value, leaveStrings) : _isArrayLike(value) ? _slice.call(value, 0) : value ? [value] : [];
};
var selector = function selector2(value) {
  value = toArray(value)[0] || _warn("Invalid scope") || {};
  return function(v) {
    var el = value.current || value.nativeElement || value;
    return toArray(v, el.querySelectorAll ? el : el === value ? _warn("Invalid scope") || _doc.createElement("div") : value);
  };
};
var shuffle = function shuffle2(a) {
  return a.sort(function() {
    return 0.5 - Math.random();
  });
};
var distribute = function distribute2(v) {
  if (_isFunction(v)) {
    return v;
  }
  var vars = _isObject(v) ? v : {
    each: v
  }, ease = _parseEase(vars.ease), from = vars.from || 0, base = parseFloat(vars.base) || 0, cache = {}, isDecimal = from > 0 && from < 1, ratios = isNaN(from) || isDecimal, axis = vars.axis, ratioX = from, ratioY = from;
  if (_isString(from)) {
    ratioX = ratioY = {
      center: 0.5,
      edges: 0.5,
      end: 1
    }[from] || 0;
  } else if (!isDecimal && ratios) {
    ratioX = from[0];
    ratioY = from[1];
  }
  return function(i, target, a) {
    var l = (a || vars).length, distances = cache[l], originX, originY, x, y, d, j, max, min, wrapAt;
    if (!distances) {
      wrapAt = vars.grid === "auto" ? 0 : (vars.grid || [1, _bigNum])[1];
      if (!wrapAt) {
        max = -_bigNum;
        while (max < (max = a[wrapAt++].getBoundingClientRect().left) && wrapAt < l) {
        }
        wrapAt < l && wrapAt--;
      }
      distances = cache[l] = [];
      originX = ratios ? Math.min(wrapAt, l) * ratioX - 0.5 : from % wrapAt;
      originY = wrapAt === _bigNum ? 0 : ratios ? l * ratioY / wrapAt - 0.5 : from / wrapAt | 0;
      max = 0;
      min = _bigNum;
      for (j = 0; j < l; j++) {
        x = j % wrapAt - originX;
        y = originY - (j / wrapAt | 0);
        distances[j] = d = !axis ? _sqrt(x * x + y * y) : Math.abs(axis === "y" ? y : x);
        d > max && (max = d);
        d < min && (min = d);
      }
      from === "random" && shuffle(distances);
      distances.max = max - min;
      distances.min = min;
      distances.v = l = (parseFloat(vars.amount) || parseFloat(vars.each) * (wrapAt > l ? l - 1 : !axis ? Math.max(wrapAt, l / wrapAt) : axis === "y" ? l / wrapAt : wrapAt) || 0) * (from === "edges" ? -1 : 1);
      distances.b = l < 0 ? base - l : base;
      distances.u = getUnit(vars.amount || vars.each) || 0;
      ease = ease && l < 0 ? _invertEase(ease) : ease;
    }
    l = (distances[i] - distances.min) / distances.max || 0;
    return _roundPrecise(distances.b + (ease ? ease(l) : l) * distances.v) + distances.u;
  };
};
var _roundModifier = function _roundModifier2(v) {
  var p = Math.pow(10, ((v + "").split(".")[1] || "").length);
  return function(raw) {
    var n = _roundPrecise(Math.round(parseFloat(raw) / v) * v * p);
    return (n - n % 1) / p + (_isNumber(raw) ? 0 : getUnit(raw));
  };
};
var snap = function snap2(snapTo, value) {
  var isArray = _isArray(snapTo), radius, is2D;
  if (!isArray && _isObject(snapTo)) {
    radius = isArray = snapTo.radius || _bigNum;
    if (snapTo.values) {
      snapTo = toArray(snapTo.values);
      if (is2D = !_isNumber(snapTo[0])) {
        radius *= radius;
      }
    } else {
      snapTo = _roundModifier(snapTo.increment);
    }
  }
  return _conditionalReturn(value, !isArray ? _roundModifier(snapTo) : _isFunction(snapTo) ? function(raw) {
    is2D = snapTo(raw);
    return Math.abs(is2D - raw) <= radius ? is2D : raw;
  } : function(raw) {
    var x = parseFloat(is2D ? raw.x : raw), y = parseFloat(is2D ? raw.y : 0), min = _bigNum, closest = 0, i = snapTo.length, dx, dy;
    while (i--) {
      if (is2D) {
        dx = snapTo[i].x - x;
        dy = snapTo[i].y - y;
        dx = dx * dx + dy * dy;
      } else {
        dx = Math.abs(snapTo[i] - x);
      }
      if (dx < min) {
        min = dx;
        closest = i;
      }
    }
    closest = !radius || min <= radius ? snapTo[closest] : raw;
    return is2D || closest === raw || _isNumber(raw) ? closest : closest + getUnit(raw);
  });
};
var random = function random2(min, max, roundingIncrement, returnFunction) {
  return _conditionalReturn(_isArray(min) ? !max : roundingIncrement === true ? !!(roundingIncrement = 0) : !returnFunction, function() {
    return _isArray(min) ? min[~~(Math.random() * min.length)] : (roundingIncrement = roundingIncrement || 1e-5) && (returnFunction = roundingIncrement < 1 ? Math.pow(10, (roundingIncrement + "").length - 2) : 1) && Math.floor(Math.round((min - roundingIncrement / 2 + Math.random() * (max - min + roundingIncrement * 0.99)) / roundingIncrement) * roundingIncrement * returnFunction) / returnFunction;
  });
};
var pipe = function pipe2() {
  for (var _len = arguments.length, functions = new Array(_len), _key = 0; _key < _len; _key++) {
    functions[_key] = arguments[_key];
  }
  return function(value) {
    return functions.reduce(function(v, f) {
      return f(v);
    }, value);
  };
};
var unitize = function unitize2(func, unit) {
  return function(value) {
    return func(parseFloat(value)) + (unit || getUnit(value));
  };
};
var normalize2 = function normalize3(min, max, value) {
  return mapRange(min, max, 0, 1, value);
};
var _wrapArray = function _wrapArray2(a, wrapper, value) {
  return _conditionalReturn(value, function(index) {
    return a[~~wrapper(index)];
  });
};
var wrap = function wrap2(min, max, value) {
  var range = max - min;
  return _isArray(min) ? _wrapArray(min, wrap2(0, min.length), max) : _conditionalReturn(value, function(value2) {
    return (range + (value2 - min) % range) % range + min;
  });
};
var wrapYoyo = function wrapYoyo2(min, max, value) {
  var range = max - min, total = range * 2;
  return _isArray(min) ? _wrapArray(min, wrapYoyo2(0, min.length - 1), max) : _conditionalReturn(value, function(value2) {
    value2 = (total + (value2 - min) % total) % total || 0;
    return min + (value2 > range ? total - value2 : value2);
  });
};
var _replaceRandom = function _replaceRandom2(value) {
  var prev = 0, s = "", i, nums, end, isArray;
  while (~(i = value.indexOf("random(", prev))) {
    end = value.indexOf(")", i);
    isArray = value.charAt(i + 7) === "[";
    nums = value.substr(i + 7, end - i - 7).match(isArray ? _delimitedValueExp : _strictNumExp);
    s += value.substr(prev, i - prev) + random(isArray ? nums : +nums[0], isArray ? 0 : +nums[1], +nums[2] || 1e-5);
    prev = end + 1;
  }
  return s + value.substr(prev, value.length - prev);
};
var mapRange = function mapRange2(inMin, inMax, outMin, outMax, value) {
  var inRange = inMax - inMin, outRange = outMax - outMin;
  return _conditionalReturn(value, function(value2) {
    return outMin + ((value2 - inMin) / inRange * outRange || 0);
  });
};
var interpolate = function interpolate2(start, end, progress, mutate) {
  var func = isNaN(start + end) ? 0 : function(p2) {
    return (1 - p2) * start + p2 * end;
  };
  if (!func) {
    var isString = _isString(start), master = {}, p, i, interpolators, l, il;
    progress === true && (mutate = 1) && (progress = null);
    if (isString) {
      start = {
        p: start
      };
      end = {
        p: end
      };
    } else if (_isArray(start) && !_isArray(end)) {
      interpolators = [];
      l = start.length;
      il = l - 2;
      for (i = 1; i < l; i++) {
        interpolators.push(interpolate2(start[i - 1], start[i]));
      }
      l--;
      func = function func2(p2) {
        p2 *= l;
        var i2 = Math.min(il, ~~p2);
        return interpolators[i2](p2 - i2);
      };
      progress = end;
    } else if (!mutate) {
      start = _merge(_isArray(start) ? [] : {}, start);
    }
    if (!interpolators) {
      for (p in end) {
        _addPropTween.call(master, start, p, "get", end[p]);
      }
      func = function func2(p2) {
        return _renderPropTweens(p2, master) || (isString ? start.p : start);
      };
    }
  }
  return _conditionalReturn(progress, func);
};
var _getLabelInDirection = function _getLabelInDirection2(timeline2, fromTime, backward) {
  var labels = timeline2.labels, min = _bigNum, p, distance, label;
  for (p in labels) {
    distance = labels[p] - fromTime;
    if (distance < 0 === !!backward && distance && min > (distance = Math.abs(distance))) {
      label = p;
      min = distance;
    }
  }
  return label;
};
var _callback = function _callback2(animation, type, executeLazyFirst) {
  var v = animation.vars, callback = v[type], prevContext = _context, context3 = animation._ctx, params, scope, result;
  if (!callback) {
    return;
  }
  params = v[type + "Params"];
  scope = v.callbackScope || animation;
  executeLazyFirst && _lazyTweens.length && _lazyRender();
  context3 && (_context = context3);
  result = params ? callback.apply(scope, params) : callback.call(scope);
  _context = prevContext;
  return result;
};
var _interrupt = function _interrupt2(animation) {
  _removeFromParent(animation);
  animation.scrollTrigger && animation.scrollTrigger.kill(!!_reverting);
  animation.progress() < 1 && _callback(animation, "onInterrupt");
  return animation;
};
var _quickTween;
var _registerPluginQueue = [];
var _createPlugin = function _createPlugin2(config3) {
  if (!config3) return;
  config3 = !config3.name && config3["default"] || config3;
  if (_windowExists() || config3.headless) {
    var name = config3.name, isFunc = _isFunction(config3), Plugin = name && !isFunc && config3.init ? function() {
      this._props = [];
    } : config3, instanceDefaults = {
      init: _emptyFunc,
      render: _renderPropTweens,
      add: _addPropTween,
      kill: _killPropTweensOf,
      modifier: _addPluginModifier,
      rawVars: 0
    }, statics = {
      targetTest: 0,
      get: 0,
      getSetter: _getSetter,
      aliases: {},
      register: 0
    };
    _wake();
    if (config3 !== Plugin) {
      if (_plugins[name]) {
        return;
      }
      _setDefaults(Plugin, _setDefaults(_copyExcluding(config3, instanceDefaults), statics));
      _merge(Plugin.prototype, _merge(instanceDefaults, _copyExcluding(config3, statics)));
      _plugins[Plugin.prop = name] = Plugin;
      if (config3.targetTest) {
        _harnessPlugins.push(Plugin);
        _reservedProps[name] = 1;
      }
      name = (name === "css" ? "CSS" : name.charAt(0).toUpperCase() + name.substr(1)) + "Plugin";
    }
    _addGlobal(name, Plugin);
    config3.register && config3.register(gsap, Plugin, PropTween);
  } else {
    _registerPluginQueue.push(config3);
  }
};
var _255 = 255;
var _colorLookup = {
  aqua: [0, _255, _255],
  lime: [0, _255, 0],
  silver: [192, 192, 192],
  black: [0, 0, 0],
  maroon: [128, 0, 0],
  teal: [0, 128, 128],
  blue: [0, 0, _255],
  navy: [0, 0, 128],
  white: [_255, _255, _255],
  olive: [128, 128, 0],
  yellow: [_255, _255, 0],
  orange: [_255, 165, 0],
  gray: [128, 128, 128],
  purple: [128, 0, 128],
  green: [0, 128, 0],
  red: [_255, 0, 0],
  pink: [_255, 192, 203],
  cyan: [0, _255, _255],
  transparent: [_255, _255, _255, 0]
};
var _hue = function _hue2(h, m1, m2) {
  h += h < 0 ? 1 : h > 1 ? -1 : 0;
  return (h * 6 < 1 ? m1 + (m2 - m1) * h * 6 : h < 0.5 ? m2 : h * 3 < 2 ? m1 + (m2 - m1) * (2 / 3 - h) * 6 : m1) * _255 + 0.5 | 0;
};
var splitColor = function splitColor2(v, toHSL, forceAlpha) {
  var a = !v ? _colorLookup.black : _isNumber(v) ? [v >> 16, v >> 8 & _255, v & _255] : 0, r, g, b, h, s, l, max, min, d, wasHSL;
  if (!a) {
    if (v.substr(-1) === ",") {
      v = v.substr(0, v.length - 1);
    }
    if (_colorLookup[v]) {
      a = _colorLookup[v];
    } else if (v.charAt(0) === "#") {
      if (v.length < 6) {
        r = v.charAt(1);
        g = v.charAt(2);
        b = v.charAt(3);
        v = "#" + r + r + g + g + b + b + (v.length === 5 ? v.charAt(4) + v.charAt(4) : "");
      }
      if (v.length === 9) {
        a = parseInt(v.substr(1, 6), 16);
        return [a >> 16, a >> 8 & _255, a & _255, parseInt(v.substr(7), 16) / 255];
      }
      v = parseInt(v.substr(1), 16);
      a = [v >> 16, v >> 8 & _255, v & _255];
    } else if (v.substr(0, 3) === "hsl") {
      a = wasHSL = v.match(_strictNumExp);
      if (!toHSL) {
        h = +a[0] % 360 / 360;
        s = +a[1] / 100;
        l = +a[2] / 100;
        g = l <= 0.5 ? l * (s + 1) : l + s - l * s;
        r = l * 2 - g;
        a.length > 3 && (a[3] *= 1);
        a[0] = _hue(h + 1 / 3, r, g);
        a[1] = _hue(h, r, g);
        a[2] = _hue(h - 1 / 3, r, g);
      } else if (~v.indexOf("=")) {
        a = v.match(_numExp);
        forceAlpha && a.length < 4 && (a[3] = 1);
        return a;
      }
    } else {
      a = v.match(_strictNumExp) || _colorLookup.transparent;
    }
    a = a.map(Number);
  }
  if (toHSL && !wasHSL) {
    r = a[0] / _255;
    g = a[1] / _255;
    b = a[2] / _255;
    max = Math.max(r, g, b);
    min = Math.min(r, g, b);
    l = (max + min) / 2;
    if (max === min) {
      h = s = 0;
    } else {
      d = max - min;
      s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
      h = max === r ? (g - b) / d + (g < b ? 6 : 0) : max === g ? (b - r) / d + 2 : (r - g) / d + 4;
      h *= 60;
    }
    a[0] = ~~(h + 0.5);
    a[1] = ~~(s * 100 + 0.5);
    a[2] = ~~(l * 100 + 0.5);
  }
  forceAlpha && a.length < 4 && (a[3] = 1);
  return a;
};
var _colorOrderData = function _colorOrderData2(v) {
  var values = [], c = [], i = -1;
  v.split(_colorExp).forEach(function(v2) {
    var a = v2.match(_numWithUnitExp) || [];
    values.push.apply(values, a);
    c.push(i += a.length + 1);
  });
  values.c = c;
  return values;
};
var _formatColors = function _formatColors2(s, toHSL, orderMatchData) {
  var result = "", colors = (s + result).match(_colorExp), type = toHSL ? "hsla(" : "rgba(", i = 0, c, shell, d, l;
  if (!colors) {
    return s;
  }
  colors = colors.map(function(color) {
    return (color = splitColor(color, toHSL, 1)) && type + (toHSL ? color[0] + "," + color[1] + "%," + color[2] + "%," + color[3] : color.join(",")) + ")";
  });
  if (orderMatchData) {
    d = _colorOrderData(s);
    c = orderMatchData.c;
    if (c.join(result) !== d.c.join(result)) {
      shell = s.replace(_colorExp, "1").split(_numWithUnitExp);
      l = shell.length - 1;
      for (; i < l; i++) {
        result += shell[i] + (~c.indexOf(i) ? colors.shift() || type + "0,0,0,0)" : (d.length ? d : colors.length ? colors : orderMatchData).shift());
      }
    }
  }
  if (!shell) {
    shell = s.split(_colorExp);
    l = shell.length - 1;
    for (; i < l; i++) {
      result += shell[i] + colors[i];
    }
  }
  return result + shell[l];
};
var _colorExp = function() {
  var s = "(?:\\b(?:(?:rgb|rgba|hsl|hsla)\\(.+?\\))|\\B#(?:[0-9a-f]{3,4}){1,2}\\b", p;
  for (p in _colorLookup) {
    s += "|" + p + "\\b";
  }
  return new RegExp(s + ")", "gi");
}();
var _hslExp = /hsl[a]?\(/;
var _colorStringFilter = function _colorStringFilter2(a) {
  var combined = a.join(" "), toHSL;
  _colorExp.lastIndex = 0;
  if (_colorExp.test(combined)) {
    toHSL = _hslExp.test(combined);
    a[1] = _formatColors(a[1], toHSL);
    a[0] = _formatColors(a[0], toHSL, _colorOrderData(a[1]));
    return true;
  }
};
var _tickerActive;
var _ticker = function() {
  var _getTime = Date.now, _lagThreshold = 500, _adjustedLag = 33, _startTime = _getTime(), _lastUpdate = _startTime, _gap = 1e3 / 240, _nextTime = _gap, _listeners2 = [], _id2, _req, _raf, _self, _delta, _i, _tick = function _tick2(v) {
    var elapsed = _getTime() - _lastUpdate, manual = v === true, overlap, dispatch, time, frame;
    (elapsed > _lagThreshold || elapsed < 0) && (_startTime += elapsed - _adjustedLag);
    _lastUpdate += elapsed;
    time = _lastUpdate - _startTime;
    overlap = time - _nextTime;
    if (overlap > 0 || manual) {
      frame = ++_self.frame;
      _delta = time - _self.time * 1e3;
      _self.time = time = time / 1e3;
      _nextTime += overlap + (overlap >= _gap ? 4 : _gap - overlap);
      dispatch = 1;
    }
    manual || (_id2 = _req(_tick2));
    if (dispatch) {
      for (_i = 0; _i < _listeners2.length; _i++) {
        _listeners2[_i](time, _delta, frame, v);
      }
    }
  };
  _self = {
    time: 0,
    frame: 0,
    tick: function tick() {
      _tick(true);
    },
    deltaRatio: function deltaRatio(fps) {
      return _delta / (1e3 / (fps || 60));
    },
    wake: function wake() {
      if (_coreReady) {
        if (!_coreInitted && _windowExists()) {
          _win = _coreInitted = window;
          _doc = _win.document || {};
          _globals.gsap = gsap;
          (_win.gsapVersions || (_win.gsapVersions = [])).push(gsap.version);
          _install(_installScope || _win.GreenSockGlobals || !_win.gsap && _win || {});
          _registerPluginQueue.forEach(_createPlugin);
        }
        _raf = typeof requestAnimationFrame !== "undefined" && requestAnimationFrame;
        _id2 && _self.sleep();
        _req = _raf || function(f) {
          return setTimeout(f, _nextTime - _self.time * 1e3 + 1 | 0);
        };
        _tickerActive = 1;
        _tick(2);
      }
    },
    sleep: function sleep() {
      (_raf ? cancelAnimationFrame : clearTimeout)(_id2);
      _tickerActive = 0;
      _req = _emptyFunc;
    },
    lagSmoothing: function lagSmoothing(threshold, adjustedLag) {
      _lagThreshold = threshold || Infinity;
      _adjustedLag = Math.min(adjustedLag || 33, _lagThreshold);
    },
    fps: function fps(_fps) {
      _gap = 1e3 / (_fps || 240);
      _nextTime = _self.time * 1e3 + _gap;
    },
    add: function add(callback, once, prioritize) {
      var func = once ? function(t, d, f, v) {
        callback(t, d, f, v);
        _self.remove(func);
      } : callback;
      _self.remove(callback);
      _listeners2[prioritize ? "unshift" : "push"](func);
      _wake();
      return func;
    },
    remove: function remove(callback, i) {
      ~(i = _listeners2.indexOf(callback)) && _listeners2.splice(i, 1) && _i >= i && _i--;
    },
    _listeners: _listeners2
  };
  return _self;
}();
var _wake = function _wake2() {
  return !_tickerActive && _ticker.wake();
};
var _easeMap = {};
var _customEaseExp = /^[\d.\-M][\d.\-,\s]/;
var _quotesExp = /["']/g;
var _parseObjectInString = function _parseObjectInString2(value) {
  var obj = {}, split = value.substr(1, value.length - 3).split(":"), key = split[0], i = 1, l = split.length, index, val, parsedVal;
  for (; i < l; i++) {
    val = split[i];
    index = i !== l - 1 ? val.lastIndexOf(",") : val.length;
    parsedVal = val.substr(0, index);
    obj[key] = isNaN(parsedVal) ? parsedVal.replace(_quotesExp, "").trim() : +parsedVal;
    key = val.substr(index + 1).trim();
  }
  return obj;
};
var _valueInParentheses = function _valueInParentheses2(value) {
  var open = value.indexOf("(") + 1, close = value.indexOf(")"), nested = value.indexOf("(", open);
  return value.substring(open, ~nested && nested < close ? value.indexOf(")", close + 1) : close);
};
var _configEaseFromString = function _configEaseFromString2(name) {
  var split = (name + "").split("("), ease = _easeMap[split[0]];
  return ease && split.length > 1 && ease.config ? ease.config.apply(null, ~name.indexOf("{") ? [_parseObjectInString(split[1])] : _valueInParentheses(name).split(",").map(_numericIfPossible)) : _easeMap._CE && _customEaseExp.test(name) ? _easeMap._CE("", name) : ease;
};
var _invertEase = function _invertEase2(ease) {
  return function(p) {
    return 1 - ease(1 - p);
  };
};
var _propagateYoyoEase = function _propagateYoyoEase2(timeline2, isYoyo) {
  var child = timeline2._first, ease;
  while (child) {
    if (child instanceof Timeline) {
      _propagateYoyoEase2(child, isYoyo);
    } else if (child.vars.yoyoEase && (!child._yoyo || !child._repeat) && child._yoyo !== isYoyo) {
      if (child.timeline) {
        _propagateYoyoEase2(child.timeline, isYoyo);
      } else {
        ease = child._ease;
        child._ease = child._yEase;
        child._yEase = ease;
        child._yoyo = isYoyo;
      }
    }
    child = child._next;
  }
};
var _parseEase = function _parseEase2(ease, defaultEase) {
  return !ease ? defaultEase : (_isFunction(ease) ? ease : _easeMap[ease] || _configEaseFromString(ease)) || defaultEase;
};
var _insertEase = function _insertEase2(names, easeIn, easeOut, easeInOut) {
  if (easeOut === void 0) {
    easeOut = function easeOut2(p) {
      return 1 - easeIn(1 - p);
    };
  }
  if (easeInOut === void 0) {
    easeInOut = function easeInOut2(p) {
      return p < 0.5 ? easeIn(p * 2) / 2 : 1 - easeIn((1 - p) * 2) / 2;
    };
  }
  var ease = {
    easeIn,
    easeOut,
    easeInOut
  }, lowercaseName;
  _forEachName(names, function(name) {
    _easeMap[name] = _globals[name] = ease;
    _easeMap[lowercaseName = name.toLowerCase()] = easeOut;
    for (var p in ease) {
      _easeMap[lowercaseName + (p === "easeIn" ? ".in" : p === "easeOut" ? ".out" : ".inOut")] = _easeMap[name + "." + p] = ease[p];
    }
  });
  return ease;
};
var _easeInOutFromOut = function _easeInOutFromOut2(easeOut) {
  return function(p) {
    return p < 0.5 ? (1 - easeOut(1 - p * 2)) / 2 : 0.5 + easeOut((p - 0.5) * 2) / 2;
  };
};
var _configElastic = function _configElastic2(type, amplitude, period) {
  var p1 = amplitude >= 1 ? amplitude : 1, p2 = (period || (type ? 0.3 : 0.45)) / (amplitude < 1 ? amplitude : 1), p3 = p2 / _2PI * (Math.asin(1 / p1) || 0), easeOut = function easeOut2(p) {
    return p === 1 ? 1 : p1 * Math.pow(2, -10 * p) * _sin((p - p3) * p2) + 1;
  }, ease = type === "out" ? easeOut : type === "in" ? function(p) {
    return 1 - easeOut(1 - p);
  } : _easeInOutFromOut(easeOut);
  p2 = _2PI / p2;
  ease.config = function(amplitude2, period2) {
    return _configElastic2(type, amplitude2, period2);
  };
  return ease;
};
var _configBack = function _configBack2(type, overshoot) {
  if (overshoot === void 0) {
    overshoot = 1.70158;
  }
  var easeOut = function easeOut2(p) {
    return p ? --p * p * ((overshoot + 1) * p + overshoot) + 1 : 0;
  }, ease = type === "out" ? easeOut : type === "in" ? function(p) {
    return 1 - easeOut(1 - p);
  } : _easeInOutFromOut(easeOut);
  ease.config = function(overshoot2) {
    return _configBack2(type, overshoot2);
  };
  return ease;
};
_forEachName("Linear,Quad,Cubic,Quart,Quint,Strong", function(name, i) {
  var power = i < 5 ? i + 1 : i;
  _insertEase(name + ",Power" + (power - 1), i ? function(p) {
    return Math.pow(p, power);
  } : function(p) {
    return p;
  }, function(p) {
    return 1 - Math.pow(1 - p, power);
  }, function(p) {
    return p < 0.5 ? Math.pow(p * 2, power) / 2 : 1 - Math.pow((1 - p) * 2, power) / 2;
  });
});
_easeMap.Linear.easeNone = _easeMap.none = _easeMap.Linear.easeIn;
_insertEase("Elastic", _configElastic("in"), _configElastic("out"), _configElastic());
(function(n, c) {
  var n1 = 1 / c, n2 = 2 * n1, n3 = 2.5 * n1, easeOut = function easeOut2(p) {
    return p < n1 ? n * p * p : p < n2 ? n * Math.pow(p - 1.5 / c, 2) + 0.75 : p < n3 ? n * (p -= 2.25 / c) * p + 0.9375 : n * Math.pow(p - 2.625 / c, 2) + 0.984375;
  };
  _insertEase("Bounce", function(p) {
    return 1 - easeOut(1 - p);
  }, easeOut);
})(7.5625, 2.75);
_insertEase("Expo", function(p) {
  return p ? Math.pow(2, 10 * (p - 1)) : 0;
});
_insertEase("Circ", function(p) {
  return -(_sqrt(1 - p * p) - 1);
});
_insertEase("Sine", function(p) {
  return p === 1 ? 1 : -_cos(p * _HALF_PI) + 1;
});
_insertEase("Back", _configBack("in"), _configBack("out"), _configBack());
_easeMap.SteppedEase = _easeMap.steps = _globals.SteppedEase = {
  config: function config(steps, immediateStart) {
    if (steps === void 0) {
      steps = 1;
    }
    var p1 = 1 / steps, p2 = steps + (immediateStart ? 0 : 1), p3 = immediateStart ? 1 : 0, max = 1 - _tinyNum;
    return function(p) {
      return ((p2 * _clamp(0, max, p) | 0) + p3) * p1;
    };
  }
};
_defaults.ease = _easeMap["quad.out"];
_forEachName("onComplete,onUpdate,onStart,onRepeat,onReverseComplete,onInterrupt", function(name) {
  return _callbackNames += name + "," + name + "Params,";
});
var GSCache = function GSCache2(target, harness) {
  this.id = _gsID++;
  target._gsap = this;
  this.target = target;
  this.harness = harness;
  this.get = harness ? harness.get : _getProperty;
  this.set = harness ? harness.getSetter : _getSetter;
};
var Animation = /* @__PURE__ */ function() {
  function Animation2(vars) {
    this.vars = vars;
    this._delay = +vars.delay || 0;
    if (this._repeat = vars.repeat === Infinity ? -2 : vars.repeat || 0) {
      this._rDelay = vars.repeatDelay || 0;
      this._yoyo = !!vars.yoyo || !!vars.yoyoEase;
    }
    this._ts = 1;
    _setDuration(this, +vars.duration, 1, 1);
    this.data = vars.data;
    if (_context) {
      this._ctx = _context;
      _context.data.push(this);
    }
    _tickerActive || _ticker.wake();
  }
  var _proto = Animation2.prototype;
  _proto.delay = function delay(value) {
    if (value || value === 0) {
      this.parent && this.parent.smoothChildTiming && this.startTime(this._start + value - this._delay);
      this._delay = value;
      return this;
    }
    return this._delay;
  };
  _proto.duration = function duration(value) {
    return arguments.length ? this.totalDuration(this._repeat > 0 ? value + (value + this._rDelay) * this._repeat : value) : this.totalDuration() && this._dur;
  };
  _proto.totalDuration = function totalDuration(value) {
    if (!arguments.length) {
      return this._tDur;
    }
    this._dirty = 0;
    return _setDuration(this, this._repeat < 0 ? value : (value - this._repeat * this._rDelay) / (this._repeat + 1));
  };
  _proto.totalTime = function totalTime(_totalTime, suppressEvents) {
    _wake();
    if (!arguments.length) {
      return this._tTime;
    }
    var parent = this._dp;
    if (parent && parent.smoothChildTiming && this._ts) {
      _alignPlayhead(this, _totalTime);
      !parent._dp || parent.parent || _postAddChecks(parent, this);
      while (parent && parent.parent) {
        if (parent.parent._time !== parent._start + (parent._ts >= 0 ? parent._tTime / parent._ts : (parent.totalDuration() - parent._tTime) / -parent._ts)) {
          parent.totalTime(parent._tTime, true);
        }
        parent = parent.parent;
      }
      if (!this.parent && this._dp.autoRemoveChildren && (this._ts > 0 && _totalTime < this._tDur || this._ts < 0 && _totalTime > 0 || !this._tDur && !_totalTime)) {
        _addToTimeline(this._dp, this, this._start - this._delay);
      }
    }
    if (this._tTime !== _totalTime || !this._dur && !suppressEvents || this._initted && Math.abs(this._zTime) === _tinyNum || !_totalTime && !this._initted && (this.add || this._ptLookup)) {
      this._ts || (this._pTime = _totalTime);
      _lazySafeRender(this, _totalTime, suppressEvents);
    }
    return this;
  };
  _proto.time = function time(value, suppressEvents) {
    return arguments.length ? this.totalTime(Math.min(this.totalDuration(), value + _elapsedCycleDuration(this)) % (this._dur + this._rDelay) || (value ? this._dur : 0), suppressEvents) : this._time;
  };
  _proto.totalProgress = function totalProgress(value, suppressEvents) {
    return arguments.length ? this.totalTime(this.totalDuration() * value, suppressEvents) : this.totalDuration() ? Math.min(1, this._tTime / this._tDur) : this.rawTime() > 0 ? 1 : 0;
  };
  _proto.progress = function progress(value, suppressEvents) {
    return arguments.length ? this.totalTime(this.duration() * (this._yoyo && !(this.iteration() & 1) ? 1 - value : value) + _elapsedCycleDuration(this), suppressEvents) : this.duration() ? Math.min(1, this._time / this._dur) : this.rawTime() > 0 ? 1 : 0;
  };
  _proto.iteration = function iteration(value, suppressEvents) {
    var cycleDuration = this.duration() + this._rDelay;
    return arguments.length ? this.totalTime(this._time + (value - 1) * cycleDuration, suppressEvents) : this._repeat ? _animationCycle(this._tTime, cycleDuration) + 1 : 1;
  };
  _proto.timeScale = function timeScale(value, suppressEvents) {
    if (!arguments.length) {
      return this._rts === -_tinyNum ? 0 : this._rts;
    }
    if (this._rts === value) {
      return this;
    }
    var tTime = this.parent && this._ts ? _parentToChildTotalTime(this.parent._time, this) : this._tTime;
    this._rts = +value || 0;
    this._ts = this._ps || value === -_tinyNum ? 0 : this._rts;
    this.totalTime(_clamp(-Math.abs(this._delay), this._tDur, tTime), suppressEvents !== false);
    _setEnd(this);
    return _recacheAncestors(this);
  };
  _proto.paused = function paused(value) {
    if (!arguments.length) {
      return this._ps;
    }
    if (this._ps !== value) {
      this._ps = value;
      if (value) {
        this._pTime = this._tTime || Math.max(-this._delay, this.rawTime());
        this._ts = this._act = 0;
      } else {
        _wake();
        this._ts = this._rts;
        this.totalTime(this.parent && !this.parent.smoothChildTiming ? this.rawTime() : this._tTime || this._pTime, this.progress() === 1 && Math.abs(this._zTime) !== _tinyNum && (this._tTime -= _tinyNum));
      }
    }
    return this;
  };
  _proto.startTime = function startTime(value) {
    if (arguments.length) {
      this._start = value;
      var parent = this.parent || this._dp;
      parent && (parent._sort || !this.parent) && _addToTimeline(parent, this, value - this._delay);
      return this;
    }
    return this._start;
  };
  _proto.endTime = function endTime(includeRepeats) {
    return this._start + (_isNotFalse(includeRepeats) ? this.totalDuration() : this.duration()) / Math.abs(this._ts || 1);
  };
  _proto.rawTime = function rawTime(wrapRepeats) {
    var parent = this.parent || this._dp;
    return !parent ? this._tTime : wrapRepeats && (!this._ts || this._repeat && this._time && this.totalProgress() < 1) ? this._tTime % (this._dur + this._rDelay) : !this._ts ? this._tTime : _parentToChildTotalTime(parent.rawTime(wrapRepeats), this);
  };
  _proto.revert = function revert(config3) {
    if (config3 === void 0) {
      config3 = _revertConfig;
    }
    var prevIsReverting = _reverting;
    _reverting = config3;
    if (this._initted || this._startAt) {
      this.timeline && this.timeline.revert(config3);
      this.totalTime(-0.01, config3.suppressEvents);
    }
    this.data !== "nested" && config3.kill !== false && this.kill();
    _reverting = prevIsReverting;
    return this;
  };
  _proto.globalTime = function globalTime(rawTime) {
    var animation = this, time = arguments.length ? rawTime : animation.rawTime();
    while (animation) {
      time = animation._start + time / (Math.abs(animation._ts) || 1);
      animation = animation._dp;
    }
    return !this.parent && this._sat ? this._sat.globalTime(rawTime) : time;
  };
  _proto.repeat = function repeat(value) {
    if (arguments.length) {
      this._repeat = value === Infinity ? -2 : value;
      return _onUpdateTotalDuration(this);
    }
    return this._repeat === -2 ? Infinity : this._repeat;
  };
  _proto.repeatDelay = function repeatDelay(value) {
    if (arguments.length) {
      var time = this._time;
      this._rDelay = value;
      _onUpdateTotalDuration(this);
      return time ? this.time(time) : this;
    }
    return this._rDelay;
  };
  _proto.yoyo = function yoyo(value) {
    if (arguments.length) {
      this._yoyo = value;
      return this;
    }
    return this._yoyo;
  };
  _proto.seek = function seek(position, suppressEvents) {
    return this.totalTime(_parsePosition(this, position), _isNotFalse(suppressEvents));
  };
  _proto.restart = function restart(includeDelay, suppressEvents) {
    return this.play().totalTime(includeDelay ? -this._delay : 0, _isNotFalse(suppressEvents));
  };
  _proto.play = function play(from, suppressEvents) {
    from != null && this.seek(from, suppressEvents);
    return this.reversed(false).paused(false);
  };
  _proto.reverse = function reverse(from, suppressEvents) {
    from != null && this.seek(from || this.totalDuration(), suppressEvents);
    return this.reversed(true).paused(false);
  };
  _proto.pause = function pause(atTime, suppressEvents) {
    atTime != null && this.seek(atTime, suppressEvents);
    return this.paused(true);
  };
  _proto.resume = function resume() {
    return this.paused(false);
  };
  _proto.reversed = function reversed(value) {
    if (arguments.length) {
      !!value !== this.reversed() && this.timeScale(-this._rts || (value ? -_tinyNum : 0));
      return this;
    }
    return this._rts < 0;
  };
  _proto.invalidate = function invalidate() {
    this._initted = this._act = 0;
    this._zTime = -_tinyNum;
    return this;
  };
  _proto.isActive = function isActive() {
    var parent = this.parent || this._dp, start = this._start, rawTime;
    return !!(!parent || this._ts && this._initted && parent.isActive() && (rawTime = parent.rawTime(true)) >= start && rawTime < this.endTime(true) - _tinyNum);
  };
  _proto.eventCallback = function eventCallback(type, callback, params) {
    var vars = this.vars;
    if (arguments.length > 1) {
      if (!callback) {
        delete vars[type];
      } else {
        vars[type] = callback;
        params && (vars[type + "Params"] = params);
        type === "onUpdate" && (this._onUpdate = callback);
      }
      return this;
    }
    return vars[type];
  };
  _proto.then = function then(onFulfilled) {
    var self2 = this;
    return new Promise(function(resolve) {
      var f = _isFunction(onFulfilled) ? onFulfilled : _passThrough, _resolve = function _resolve2() {
        var _then = self2.then;
        self2.then = null;
        _isFunction(f) && (f = f(self2)) && (f.then || f === self2) && (self2.then = _then);
        resolve(f);
        self2.then = _then;
      };
      if (self2._initted && self2.totalProgress() === 1 && self2._ts >= 0 || !self2._tTime && self2._ts < 0) {
        _resolve();
      } else {
        self2._prom = _resolve;
      }
    });
  };
  _proto.kill = function kill() {
    _interrupt(this);
  };
  return Animation2;
}();
_setDefaults(Animation.prototype, {
  _time: 0,
  _start: 0,
  _end: 0,
  _tTime: 0,
  _tDur: 0,
  _dirty: 0,
  _repeat: 0,
  _yoyo: false,
  parent: null,
  _initted: false,
  _rDelay: 0,
  _ts: 1,
  _dp: 0,
  ratio: 0,
  _zTime: -_tinyNum,
  _prom: 0,
  _ps: false,
  _rts: 1
});
var Timeline = /* @__PURE__ */ function(_Animation) {
  _inheritsLoose(Timeline2, _Animation);
  function Timeline2(vars, position) {
    var _this;
    if (vars === void 0) {
      vars = {};
    }
    _this = _Animation.call(this, vars) || this;
    _this.labels = {};
    _this.smoothChildTiming = !!vars.smoothChildTiming;
    _this.autoRemoveChildren = !!vars.autoRemoveChildren;
    _this._sort = _isNotFalse(vars.sortChildren);
    _globalTimeline && _addToTimeline(vars.parent || _globalTimeline, _assertThisInitialized(_this), position);
    vars.reversed && _this.reverse();
    vars.paused && _this.paused(true);
    vars.scrollTrigger && _scrollTrigger(_assertThisInitialized(_this), vars.scrollTrigger);
    return _this;
  }
  var _proto2 = Timeline2.prototype;
  _proto2.to = function to(targets, vars, position) {
    _createTweenType(0, arguments, this);
    return this;
  };
  _proto2.from = function from(targets, vars, position) {
    _createTweenType(1, arguments, this);
    return this;
  };
  _proto2.fromTo = function fromTo(targets, fromVars, toVars, position) {
    _createTweenType(2, arguments, this);
    return this;
  };
  _proto2.set = function set(targets, vars, position) {
    vars.duration = 0;
    vars.parent = this;
    _inheritDefaults(vars).repeatDelay || (vars.repeat = 0);
    vars.immediateRender = !!vars.immediateRender;
    new Tween(targets, vars, _parsePosition(this, position), 1);
    return this;
  };
  _proto2.call = function call(callback, params, position) {
    return _addToTimeline(this, Tween.delayedCall(0, callback, params), position);
  };
  _proto2.staggerTo = function staggerTo(targets, duration, vars, stagger, position, onCompleteAll, onCompleteAllParams) {
    vars.duration = duration;
    vars.stagger = vars.stagger || stagger;
    vars.onComplete = onCompleteAll;
    vars.onCompleteParams = onCompleteAllParams;
    vars.parent = this;
    new Tween(targets, vars, _parsePosition(this, position));
    return this;
  };
  _proto2.staggerFrom = function staggerFrom(targets, duration, vars, stagger, position, onCompleteAll, onCompleteAllParams) {
    vars.runBackwards = 1;
    _inheritDefaults(vars).immediateRender = _isNotFalse(vars.immediateRender);
    return this.staggerTo(targets, duration, vars, stagger, position, onCompleteAll, onCompleteAllParams);
  };
  _proto2.staggerFromTo = function staggerFromTo(targets, duration, fromVars, toVars, stagger, position, onCompleteAll, onCompleteAllParams) {
    toVars.startAt = fromVars;
    _inheritDefaults(toVars).immediateRender = _isNotFalse(toVars.immediateRender);
    return this.staggerTo(targets, duration, toVars, stagger, position, onCompleteAll, onCompleteAllParams);
  };
  _proto2.render = function render3(totalTime, suppressEvents, force) {
    var prevTime = this._time, tDur = this._dirty ? this.totalDuration() : this._tDur, dur = this._dur, tTime = totalTime <= 0 ? 0 : _roundPrecise(totalTime), crossingStart = this._zTime < 0 !== totalTime < 0 && (this._initted || !dur), time, child, next, iteration, cycleDuration, prevPaused, pauseTween, timeScale, prevStart, prevIteration, yoyo, isYoyo;
    this !== _globalTimeline && tTime > tDur && totalTime >= 0 && (tTime = tDur);
    if (tTime !== this._tTime || force || crossingStart) {
      if (prevTime !== this._time && dur) {
        tTime += this._time - prevTime;
        totalTime += this._time - prevTime;
      }
      time = tTime;
      prevStart = this._start;
      timeScale = this._ts;
      prevPaused = !timeScale;
      if (crossingStart) {
        dur || (prevTime = this._zTime);
        (totalTime || !suppressEvents) && (this._zTime = totalTime);
      }
      if (this._repeat) {
        yoyo = this._yoyo;
        cycleDuration = dur + this._rDelay;
        if (this._repeat < -1 && totalTime < 0) {
          return this.totalTime(cycleDuration * 100 + totalTime, suppressEvents, force);
        }
        time = _roundPrecise(tTime % cycleDuration);
        if (tTime === tDur) {
          iteration = this._repeat;
          time = dur;
        } else {
          iteration = ~~(tTime / cycleDuration);
          if (iteration && iteration === tTime / cycleDuration) {
            time = dur;
            iteration--;
          }
          time > dur && (time = dur);
        }
        prevIteration = _animationCycle(this._tTime, cycleDuration);
        !prevTime && this._tTime && prevIteration !== iteration && this._tTime - prevIteration * cycleDuration - this._dur <= 0 && (prevIteration = iteration);
        if (yoyo && iteration & 1) {
          time = dur - time;
          isYoyo = 1;
        }
        if (iteration !== prevIteration && !this._lock) {
          var rewinding = yoyo && prevIteration & 1, doesWrap = rewinding === (yoyo && iteration & 1);
          iteration < prevIteration && (rewinding = !rewinding);
          prevTime = rewinding ? 0 : tTime % dur ? dur : tTime;
          this._lock = 1;
          this.render(prevTime || (isYoyo ? 0 : _roundPrecise(iteration * cycleDuration)), suppressEvents, !dur)._lock = 0;
          this._tTime = tTime;
          !suppressEvents && this.parent && _callback(this, "onRepeat");
          this.vars.repeatRefresh && !isYoyo && (this.invalidate()._lock = 1);
          if (prevTime && prevTime !== this._time || prevPaused !== !this._ts || this.vars.onRepeat && !this.parent && !this._act) {
            return this;
          }
          dur = this._dur;
          tDur = this._tDur;
          if (doesWrap) {
            this._lock = 2;
            prevTime = rewinding ? dur : -1e-4;
            this.render(prevTime, true);
            this.vars.repeatRefresh && !isYoyo && this.invalidate();
          }
          this._lock = 0;
          if (!this._ts && !prevPaused) {
            return this;
          }
          _propagateYoyoEase(this, isYoyo);
        }
      }
      if (this._hasPause && !this._forcing && this._lock < 2) {
        pauseTween = _findNextPauseTween(this, _roundPrecise(prevTime), _roundPrecise(time));
        if (pauseTween) {
          tTime -= time - (time = pauseTween._start);
        }
      }
      this._tTime = tTime;
      this._time = time;
      this._act = !timeScale;
      if (!this._initted) {
        this._onUpdate = this.vars.onUpdate;
        this._initted = 1;
        this._zTime = totalTime;
        prevTime = 0;
      }
      if (!prevTime && time && !suppressEvents && !iteration) {
        _callback(this, "onStart");
        if (this._tTime !== tTime) {
          return this;
        }
      }
      if (time >= prevTime && totalTime >= 0) {
        child = this._first;
        while (child) {
          next = child._next;
          if ((child._act || time >= child._start) && child._ts && pauseTween !== child) {
            if (child.parent !== this) {
              return this.render(totalTime, suppressEvents, force);
            }
            child.render(child._ts > 0 ? (time - child._start) * child._ts : (child._dirty ? child.totalDuration() : child._tDur) + (time - child._start) * child._ts, suppressEvents, force);
            if (time !== this._time || !this._ts && !prevPaused) {
              pauseTween = 0;
              next && (tTime += this._zTime = -_tinyNum);
              break;
            }
          }
          child = next;
        }
      } else {
        child = this._last;
        var adjustedTime = totalTime < 0 ? totalTime : time;
        while (child) {
          next = child._prev;
          if ((child._act || adjustedTime <= child._end) && child._ts && pauseTween !== child) {
            if (child.parent !== this) {
              return this.render(totalTime, suppressEvents, force);
            }
            child.render(child._ts > 0 ? (adjustedTime - child._start) * child._ts : (child._dirty ? child.totalDuration() : child._tDur) + (adjustedTime - child._start) * child._ts, suppressEvents, force || _reverting && (child._initted || child._startAt));
            if (time !== this._time || !this._ts && !prevPaused) {
              pauseTween = 0;
              next && (tTime += this._zTime = adjustedTime ? -_tinyNum : _tinyNum);
              break;
            }
          }
          child = next;
        }
      }
      if (pauseTween && !suppressEvents) {
        this.pause();
        pauseTween.render(time >= prevTime ? 0 : -_tinyNum)._zTime = time >= prevTime ? 1 : -1;
        if (this._ts) {
          this._start = prevStart;
          _setEnd(this);
          return this.render(totalTime, suppressEvents, force);
        }
      }
      this._onUpdate && !suppressEvents && _callback(this, "onUpdate", true);
      if (tTime === tDur && this._tTime >= this.totalDuration() || !tTime && prevTime) {
        if (prevStart === this._start || Math.abs(timeScale) !== Math.abs(this._ts)) {
          if (!this._lock) {
            (totalTime || !dur) && (tTime === tDur && this._ts > 0 || !tTime && this._ts < 0) && _removeFromParent(this, 1);
            if (!suppressEvents && !(totalTime < 0 && !prevTime) && (tTime || prevTime || !tDur)) {
              _callback(this, tTime === tDur && totalTime >= 0 ? "onComplete" : "onReverseComplete", true);
              this._prom && !(tTime < tDur && this.timeScale() > 0) && this._prom();
            }
          }
        }
      }
    }
    return this;
  };
  _proto2.add = function add(child, position) {
    var _this2 = this;
    _isNumber(position) || (position = _parsePosition(this, position, child));
    if (!(child instanceof Animation)) {
      if (_isArray(child)) {
        child.forEach(function(obj) {
          return _this2.add(obj, position);
        });
        return this;
      }
      if (_isString(child)) {
        return this.addLabel(child, position);
      }
      if (_isFunction(child)) {
        child = Tween.delayedCall(0, child);
      } else {
        return this;
      }
    }
    return this !== child ? _addToTimeline(this, child, position) : this;
  };
  _proto2.getChildren = function getChildren(nested, tweens, timelines, ignoreBeforeTime) {
    if (nested === void 0) {
      nested = true;
    }
    if (tweens === void 0) {
      tweens = true;
    }
    if (timelines === void 0) {
      timelines = true;
    }
    if (ignoreBeforeTime === void 0) {
      ignoreBeforeTime = -_bigNum;
    }
    var a = [], child = this._first;
    while (child) {
      if (child._start >= ignoreBeforeTime) {
        if (child instanceof Tween) {
          tweens && a.push(child);
        } else {
          timelines && a.push(child);
          nested && a.push.apply(a, child.getChildren(true, tweens, timelines));
        }
      }
      child = child._next;
    }
    return a;
  };
  _proto2.getById = function getById2(id) {
    var animations = this.getChildren(1, 1, 1), i = animations.length;
    while (i--) {
      if (animations[i].vars.id === id) {
        return animations[i];
      }
    }
  };
  _proto2.remove = function remove(child) {
    if (_isString(child)) {
      return this.removeLabel(child);
    }
    if (_isFunction(child)) {
      return this.killTweensOf(child);
    }
    _removeLinkedListItem(this, child);
    if (child === this._recent) {
      this._recent = this._last;
    }
    return _uncache(this);
  };
  _proto2.totalTime = function totalTime(_totalTime2, suppressEvents) {
    if (!arguments.length) {
      return this._tTime;
    }
    this._forcing = 1;
    if (!this._dp && this._ts) {
      this._start = _roundPrecise(_ticker.time - (this._ts > 0 ? _totalTime2 / this._ts : (this.totalDuration() - _totalTime2) / -this._ts));
    }
    _Animation.prototype.totalTime.call(this, _totalTime2, suppressEvents);
    this._forcing = 0;
    return this;
  };
  _proto2.addLabel = function addLabel(label, position) {
    this.labels[label] = _parsePosition(this, position);
    return this;
  };
  _proto2.removeLabel = function removeLabel(label) {
    delete this.labels[label];
    return this;
  };
  _proto2.addPause = function addPause(position, callback, params) {
    var t = Tween.delayedCall(0, callback || _emptyFunc, params);
    t.data = "isPause";
    this._hasPause = 1;
    return _addToTimeline(this, t, _parsePosition(this, position));
  };
  _proto2.removePause = function removePause(position) {
    var child = this._first;
    position = _parsePosition(this, position);
    while (child) {
      if (child._start === position && child.data === "isPause") {
        _removeFromParent(child);
      }
      child = child._next;
    }
  };
  _proto2.killTweensOf = function killTweensOf(targets, props, onlyActive) {
    var tweens = this.getTweensOf(targets, onlyActive), i = tweens.length;
    while (i--) {
      _overwritingTween !== tweens[i] && tweens[i].kill(targets, props);
    }
    return this;
  };
  _proto2.getTweensOf = function getTweensOf2(targets, onlyActive) {
    var a = [], parsedTargets = toArray(targets), child = this._first, isGlobalTime = _isNumber(onlyActive), children;
    while (child) {
      if (child instanceof Tween) {
        if (_arrayContainsAny(child._targets, parsedTargets) && (isGlobalTime ? (!_overwritingTween || child._initted && child._ts) && child.globalTime(0) <= onlyActive && child.globalTime(child.totalDuration()) > onlyActive : !onlyActive || child.isActive())) {
          a.push(child);
        }
      } else if ((children = child.getTweensOf(parsedTargets, onlyActive)).length) {
        a.push.apply(a, children);
      }
      child = child._next;
    }
    return a;
  };
  _proto2.tweenTo = function tweenTo(position, vars) {
    vars = vars || {};
    var tl = this, endTime = _parsePosition(tl, position), _vars = vars, startAt = _vars.startAt, _onStart = _vars.onStart, onStartParams = _vars.onStartParams, immediateRender = _vars.immediateRender, initted, tween = Tween.to(tl, _setDefaults({
      ease: vars.ease || "none",
      lazy: false,
      immediateRender: false,
      time: endTime,
      overwrite: "auto",
      duration: vars.duration || Math.abs((endTime - (startAt && "time" in startAt ? startAt.time : tl._time)) / tl.timeScale()) || _tinyNum,
      onStart: function onStart() {
        tl.pause();
        if (!initted) {
          var duration = vars.duration || Math.abs((endTime - (startAt && "time" in startAt ? startAt.time : tl._time)) / tl.timeScale());
          tween._dur !== duration && _setDuration(tween, duration, 0, 1).render(tween._time, true, true);
          initted = 1;
        }
        _onStart && _onStart.apply(tween, onStartParams || []);
      }
    }, vars));
    return immediateRender ? tween.render(0) : tween;
  };
  _proto2.tweenFromTo = function tweenFromTo(fromPosition, toPosition, vars) {
    return this.tweenTo(toPosition, _setDefaults({
      startAt: {
        time: _parsePosition(this, fromPosition)
      }
    }, vars));
  };
  _proto2.recent = function recent() {
    return this._recent;
  };
  _proto2.nextLabel = function nextLabel(afterTime) {
    if (afterTime === void 0) {
      afterTime = this._time;
    }
    return _getLabelInDirection(this, _parsePosition(this, afterTime));
  };
  _proto2.previousLabel = function previousLabel(beforeTime) {
    if (beforeTime === void 0) {
      beforeTime = this._time;
    }
    return _getLabelInDirection(this, _parsePosition(this, beforeTime), 1);
  };
  _proto2.currentLabel = function currentLabel(value) {
    return arguments.length ? this.seek(value, true) : this.previousLabel(this._time + _tinyNum);
  };
  _proto2.shiftChildren = function shiftChildren(amount, adjustLabels, ignoreBeforeTime) {
    if (ignoreBeforeTime === void 0) {
      ignoreBeforeTime = 0;
    }
    var child = this._first, labels = this.labels, p;
    while (child) {
      if (child._start >= ignoreBeforeTime) {
        child._start += amount;
        child._end += amount;
      }
      child = child._next;
    }
    if (adjustLabels) {
      for (p in labels) {
        if (labels[p] >= ignoreBeforeTime) {
          labels[p] += amount;
        }
      }
    }
    return _uncache(this);
  };
  _proto2.invalidate = function invalidate(soft) {
    var child = this._first;
    this._lock = 0;
    while (child) {
      child.invalidate(soft);
      child = child._next;
    }
    return _Animation.prototype.invalidate.call(this, soft);
  };
  _proto2.clear = function clear(includeLabels) {
    if (includeLabels === void 0) {
      includeLabels = true;
    }
    var child = this._first, next;
    while (child) {
      next = child._next;
      this.remove(child);
      child = next;
    }
    this._dp && (this._time = this._tTime = this._pTime = 0);
    includeLabels && (this.labels = {});
    return _uncache(this);
  };
  _proto2.totalDuration = function totalDuration(value) {
    var max = 0, self2 = this, child = self2._last, prevStart = _bigNum, prev, start, parent;
    if (arguments.length) {
      return self2.timeScale((self2._repeat < 0 ? self2.duration() : self2.totalDuration()) / (self2.reversed() ? -value : value));
    }
    if (self2._dirty) {
      parent = self2.parent;
      while (child) {
        prev = child._prev;
        child._dirty && child.totalDuration();
        start = child._start;
        if (start > prevStart && self2._sort && child._ts && !self2._lock) {
          self2._lock = 1;
          _addToTimeline(self2, child, start - child._delay, 1)._lock = 0;
        } else {
          prevStart = start;
        }
        if (start < 0 && child._ts) {
          max -= start;
          if (!parent && !self2._dp || parent && parent.smoothChildTiming) {
            self2._start += start / self2._ts;
            self2._time -= start;
            self2._tTime -= start;
          }
          self2.shiftChildren(-start, false, -Infinity);
          prevStart = 0;
        }
        child._end > max && child._ts && (max = child._end);
        child = prev;
      }
      _setDuration(self2, self2 === _globalTimeline && self2._time > max ? self2._time : max, 1, 1);
      self2._dirty = 0;
    }
    return self2._tDur;
  };
  Timeline2.updateRoot = function updateRoot(time) {
    if (_globalTimeline._ts) {
      _lazySafeRender(_globalTimeline, _parentToChildTotalTime(time, _globalTimeline));
      _lastRenderedFrame = _ticker.frame;
    }
    if (_ticker.frame >= _nextGCFrame) {
      _nextGCFrame += _config.autoSleep || 120;
      var child = _globalTimeline._first;
      if (!child || !child._ts) {
        if (_config.autoSleep && _ticker._listeners.length < 2) {
          while (child && !child._ts) {
            child = child._next;
          }
          child || _ticker.sleep();
        }
      }
    }
  };
  return Timeline2;
}(Animation);
_setDefaults(Timeline.prototype, {
  _lock: 0,
  _hasPause: 0,
  _forcing: 0
});
var _addComplexStringPropTween = function _addComplexStringPropTween2(target, prop, start, end, setter, stringFilter, funcParam) {
  var pt = new PropTween(this._pt, target, prop, 0, 1, _renderComplexString, null, setter), index = 0, matchIndex = 0, result, startNums, color, endNum, chunk, startNum, hasRandom, a;
  pt.b = start;
  pt.e = end;
  start += "";
  end += "";
  if (hasRandom = ~end.indexOf("random(")) {
    end = _replaceRandom(end);
  }
  if (stringFilter) {
    a = [start, end];
    stringFilter(a, target, prop);
    start = a[0];
    end = a[1];
  }
  startNums = start.match(_complexStringNumExp) || [];
  while (result = _complexStringNumExp.exec(end)) {
    endNum = result[0];
    chunk = end.substring(index, result.index);
    if (color) {
      color = (color + 1) % 5;
    } else if (chunk.substr(-5) === "rgba(") {
      color = 1;
    }
    if (endNum !== startNums[matchIndex++]) {
      startNum = parseFloat(startNums[matchIndex - 1]) || 0;
      pt._pt = {
        _next: pt._pt,
        p: chunk || matchIndex === 1 ? chunk : ",",
        //note: SVG spec allows omission of comma/space when a negative sign is wedged between two numbers, like 2.5-5.3 instead of 2.5,-5.3 but when tweening, the negative value may switch to positive, so we insert the comma just in case.
        s: startNum,
        c: endNum.charAt(1) === "=" ? _parseRelative(startNum, endNum) - startNum : parseFloat(endNum) - startNum,
        m: color && color < 4 ? Math.round : 0
      };
      index = _complexStringNumExp.lastIndex;
    }
  }
  pt.c = index < end.length ? end.substring(index, end.length) : "";
  pt.fp = funcParam;
  if (_relExp.test(end) || hasRandom) {
    pt.e = 0;
  }
  this._pt = pt;
  return pt;
};
var _addPropTween = function _addPropTween2(target, prop, start, end, index, targets, modifier, stringFilter, funcParam, optional) {
  _isFunction(end) && (end = end(index || 0, target, targets));
  var currentValue = target[prop], parsedStart = start !== "get" ? start : !_isFunction(currentValue) ? currentValue : funcParam ? target[prop.indexOf("set") || !_isFunction(target["get" + prop.substr(3)]) ? prop : "get" + prop.substr(3)](funcParam) : target[prop](), setter = !_isFunction(currentValue) ? _setterPlain : funcParam ? _setterFuncWithParam : _setterFunc, pt;
  if (_isString(end)) {
    if (~end.indexOf("random(")) {
      end = _replaceRandom(end);
    }
    if (end.charAt(1) === "=") {
      pt = _parseRelative(parsedStart, end) + (getUnit(parsedStart) || 0);
      if (pt || pt === 0) {
        end = pt;
      }
    }
  }
  if (!optional || parsedStart !== end || _forceAllPropTweens) {
    if (!isNaN(parsedStart * end) && end !== "") {
      pt = new PropTween(this._pt, target, prop, +parsedStart || 0, end - (parsedStart || 0), typeof currentValue === "boolean" ? _renderBoolean : _renderPlain, 0, setter);
      funcParam && (pt.fp = funcParam);
      modifier && pt.modifier(modifier, this, target);
      return this._pt = pt;
    }
    !currentValue && !(prop in target) && _missingPlugin(prop, end);
    return _addComplexStringPropTween.call(this, target, prop, parsedStart, end, setter, stringFilter || _config.stringFilter, funcParam);
  }
};
var _processVars = function _processVars2(vars, index, target, targets, tween) {
  _isFunction(vars) && (vars = _parseFuncOrString(vars, tween, index, target, targets));
  if (!_isObject(vars) || vars.style && vars.nodeType || _isArray(vars) || _isTypedArray(vars)) {
    return _isString(vars) ? _parseFuncOrString(vars, tween, index, target, targets) : vars;
  }
  var copy = {}, p;
  for (p in vars) {
    copy[p] = _parseFuncOrString(vars[p], tween, index, target, targets);
  }
  return copy;
};
var _checkPlugin = function _checkPlugin2(property, vars, tween, index, target, targets) {
  var plugin, pt, ptLookup, i;
  if (_plugins[property] && (plugin = new _plugins[property]()).init(target, plugin.rawVars ? vars[property] : _processVars(vars[property], index, target, targets, tween), tween, index, targets) !== false) {
    tween._pt = pt = new PropTween(tween._pt, target, property, 0, 1, plugin.render, plugin, 0, plugin.priority);
    if (tween !== _quickTween) {
      ptLookup = tween._ptLookup[tween._targets.indexOf(target)];
      i = plugin._props.length;
      while (i--) {
        ptLookup[plugin._props[i]] = pt;
      }
    }
  }
  return plugin;
};
var _overwritingTween;
var _forceAllPropTweens;
var _initTween = function _initTween2(tween, time, tTime) {
  var vars = tween.vars, ease = vars.ease, startAt = vars.startAt, immediateRender = vars.immediateRender, lazy = vars.lazy, onUpdate = vars.onUpdate, runBackwards = vars.runBackwards, yoyoEase = vars.yoyoEase, keyframes = vars.keyframes, autoRevert = vars.autoRevert, dur = tween._dur, prevStartAt = tween._startAt, targets = tween._targets, parent = tween.parent, fullTargets = parent && parent.data === "nested" ? parent.vars.targets : targets, autoOverwrite = tween._overwrite === "auto" && !_suppressOverwrites, tl = tween.timeline, cleanVars, i, p, pt, target, hasPriority, gsData, harness, plugin, ptLookup, index, harnessVars, overwritten;
  tl && (!keyframes || !ease) && (ease = "none");
  tween._ease = _parseEase(ease, _defaults.ease);
  tween._yEase = yoyoEase ? _invertEase(_parseEase(yoyoEase === true ? ease : yoyoEase, _defaults.ease)) : 0;
  if (yoyoEase && tween._yoyo && !tween._repeat) {
    yoyoEase = tween._yEase;
    tween._yEase = tween._ease;
    tween._ease = yoyoEase;
  }
  tween._from = !tl && !!vars.runBackwards;
  if (!tl || keyframes && !vars.stagger) {
    harness = targets[0] ? _getCache(targets[0]).harness : 0;
    harnessVars = harness && vars[harness.prop];
    cleanVars = _copyExcluding(vars, _reservedProps);
    if (prevStartAt) {
      prevStartAt._zTime < 0 && prevStartAt.progress(1);
      time < 0 && runBackwards && immediateRender && !autoRevert ? prevStartAt.render(-1, true) : prevStartAt.revert(runBackwards && dur ? _revertConfigNoKill : _startAtRevertConfig);
      prevStartAt._lazy = 0;
    }
    if (startAt) {
      _removeFromParent(tween._startAt = Tween.set(targets, _setDefaults({
        data: "isStart",
        overwrite: false,
        parent,
        immediateRender: true,
        lazy: !prevStartAt && _isNotFalse(lazy),
        startAt: null,
        delay: 0,
        onUpdate: onUpdate && function() {
          return _callback(tween, "onUpdate");
        },
        stagger: 0
      }, startAt)));
      tween._startAt._dp = 0;
      tween._startAt._sat = tween;
      time < 0 && (_reverting || !immediateRender && !autoRevert) && tween._startAt.revert(_revertConfigNoKill);
      if (immediateRender) {
        if (dur && time <= 0 && tTime <= 0) {
          time && (tween._zTime = time);
          return;
        }
      }
    } else if (runBackwards && dur) {
      if (!prevStartAt) {
        time && (immediateRender = false);
        p = _setDefaults({
          overwrite: false,
          data: "isFromStart",
          //we tag the tween with as "isFromStart" so that if [inside a plugin] we need to only do something at the very END of a tween, we have a way of identifying this tween as merely the one that's setting the beginning values for a "from()" tween. For example, clearProps in CSSPlugin should only get applied at the very END of a tween and without this tag, from(...{height:100, clearProps:"height", delay:1}) would wipe the height at the beginning of the tween and after 1 second, it'd kick back in.
          lazy: immediateRender && !prevStartAt && _isNotFalse(lazy),
          immediateRender,
          //zero-duration tweens render immediately by default, but if we're not specifically instructed to render this tween immediately, we should skip this and merely _init() to record the starting values (rendering them immediately would push them to completion which is wasteful in that case - we'd have to render(-1) immediately after)
          stagger: 0,
          parent
          //ensures that nested tweens that had a stagger are handled properly, like gsap.from(".class", {y: gsap.utils.wrap([-100,100]), stagger: 0.5})
        }, cleanVars);
        harnessVars && (p[harness.prop] = harnessVars);
        _removeFromParent(tween._startAt = Tween.set(targets, p));
        tween._startAt._dp = 0;
        tween._startAt._sat = tween;
        time < 0 && (_reverting ? tween._startAt.revert(_revertConfigNoKill) : tween._startAt.render(-1, true));
        tween._zTime = time;
        if (!immediateRender) {
          _initTween2(tween._startAt, _tinyNum, _tinyNum);
        } else if (!time) {
          return;
        }
      }
    }
    tween._pt = tween._ptCache = 0;
    lazy = dur && _isNotFalse(lazy) || lazy && !dur;
    for (i = 0; i < targets.length; i++) {
      target = targets[i];
      gsData = target._gsap || _harness(targets)[i]._gsap;
      tween._ptLookup[i] = ptLookup = {};
      _lazyLookup[gsData.id] && _lazyTweens.length && _lazyRender();
      index = fullTargets === targets ? i : fullTargets.indexOf(target);
      if (harness && (plugin = new harness()).init(target, harnessVars || cleanVars, tween, index, fullTargets) !== false) {
        tween._pt = pt = new PropTween(tween._pt, target, plugin.name, 0, 1, plugin.render, plugin, 0, plugin.priority);
        plugin._props.forEach(function(name) {
          ptLookup[name] = pt;
        });
        plugin.priority && (hasPriority = 1);
      }
      if (!harness || harnessVars) {
        for (p in cleanVars) {
          if (_plugins[p] && (plugin = _checkPlugin(p, cleanVars, tween, index, target, fullTargets))) {
            plugin.priority && (hasPriority = 1);
          } else {
            ptLookup[p] = pt = _addPropTween.call(tween, target, p, "get", cleanVars[p], index, fullTargets, 0, vars.stringFilter);
          }
        }
      }
      tween._op && tween._op[i] && tween.kill(target, tween._op[i]);
      if (autoOverwrite && tween._pt) {
        _overwritingTween = tween;
        _globalTimeline.killTweensOf(target, ptLookup, tween.globalTime(time));
        overwritten = !tween.parent;
        _overwritingTween = 0;
      }
      tween._pt && lazy && (_lazyLookup[gsData.id] = 1);
    }
    hasPriority && _sortPropTweensByPriority(tween);
    tween._onInit && tween._onInit(tween);
  }
  tween._onUpdate = onUpdate;
  tween._initted = (!tween._op || tween._pt) && !overwritten;
  keyframes && time <= 0 && tl.render(_bigNum, true, true);
};
var _updatePropTweens = function _updatePropTweens2(tween, property, value, start, startIsRelative, ratio, time, skipRecursion) {
  var ptCache = (tween._pt && tween._ptCache || (tween._ptCache = {}))[property], pt, rootPT, lookup, i;
  if (!ptCache) {
    ptCache = tween._ptCache[property] = [];
    lookup = tween._ptLookup;
    i = tween._targets.length;
    while (i--) {
      pt = lookup[i][property];
      if (pt && pt.d && pt.d._pt) {
        pt = pt.d._pt;
        while (pt && pt.p !== property && pt.fp !== property) {
          pt = pt._next;
        }
      }
      if (!pt) {
        _forceAllPropTweens = 1;
        tween.vars[property] = "+=0";
        _initTween(tween, time);
        _forceAllPropTweens = 0;
        return skipRecursion ? _warn(property + " not eligible for reset") : 1;
      }
      ptCache.push(pt);
    }
  }
  i = ptCache.length;
  while (i--) {
    rootPT = ptCache[i];
    pt = rootPT._pt || rootPT;
    pt.s = (start || start === 0) && !startIsRelative ? start : pt.s + (start || 0) + ratio * pt.c;
    pt.c = value - pt.s;
    rootPT.e && (rootPT.e = _round(value) + getUnit(rootPT.e));
    rootPT.b && (rootPT.b = pt.s + getUnit(rootPT.b));
  }
};
var _addAliasesToVars = function _addAliasesToVars2(targets, vars) {
  var harness = targets[0] ? _getCache(targets[0]).harness : 0, propertyAliases = harness && harness.aliases, copy, p, i, aliases;
  if (!propertyAliases) {
    return vars;
  }
  copy = _merge({}, vars);
  for (p in propertyAliases) {
    if (p in copy) {
      aliases = propertyAliases[p].split(",");
      i = aliases.length;
      while (i--) {
        copy[aliases[i]] = copy[p];
      }
    }
  }
  return copy;
};
var _parseKeyframe = function _parseKeyframe2(prop, obj, allProps, easeEach) {
  var ease = obj.ease || easeEach || "power1.inOut", p, a;
  if (_isArray(obj)) {
    a = allProps[prop] || (allProps[prop] = []);
    obj.forEach(function(value, i) {
      return a.push({
        t: i / (obj.length - 1) * 100,
        v: value,
        e: ease
      });
    });
  } else {
    for (p in obj) {
      a = allProps[p] || (allProps[p] = []);
      p === "ease" || a.push({
        t: parseFloat(prop),
        v: obj[p],
        e: ease
      });
    }
  }
};
var _parseFuncOrString = function _parseFuncOrString2(value, tween, i, target, targets) {
  return _isFunction(value) ? value.call(tween, i, target, targets) : _isString(value) && ~value.indexOf("random(") ? _replaceRandom(value) : value;
};
var _staggerTweenProps = _callbackNames + "repeat,repeatDelay,yoyo,repeatRefresh,yoyoEase,autoRevert";
var _staggerPropsToSkip = {};
_forEachName(_staggerTweenProps + ",id,stagger,delay,duration,paused,scrollTrigger", function(name) {
  return _staggerPropsToSkip[name] = 1;
});
var Tween = /* @__PURE__ */ function(_Animation2) {
  _inheritsLoose(Tween2, _Animation2);
  function Tween2(targets, vars, position, skipInherit) {
    var _this3;
    if (typeof vars === "number") {
      position.duration = vars;
      vars = position;
      position = null;
    }
    _this3 = _Animation2.call(this, skipInherit ? vars : _inheritDefaults(vars)) || this;
    var _this3$vars = _this3.vars, duration = _this3$vars.duration, delay = _this3$vars.delay, immediateRender = _this3$vars.immediateRender, stagger = _this3$vars.stagger, overwrite = _this3$vars.overwrite, keyframes = _this3$vars.keyframes, defaults2 = _this3$vars.defaults, scrollTrigger = _this3$vars.scrollTrigger, yoyoEase = _this3$vars.yoyoEase, parent = vars.parent || _globalTimeline, parsedTargets = (_isArray(targets) || _isTypedArray(targets) ? _isNumber(targets[0]) : "length" in vars) ? [targets] : toArray(targets), tl, i, copy, l, p, curTarget, staggerFunc, staggerVarsToMerge;
    _this3._targets = parsedTargets.length ? _harness(parsedTargets) : _warn("GSAP target " + targets + " not found. https://gsap.com", !_config.nullTargetWarn) || [];
    _this3._ptLookup = [];
    _this3._overwrite = overwrite;
    if (keyframes || stagger || _isFuncOrString(duration) || _isFuncOrString(delay)) {
      vars = _this3.vars;
      tl = _this3.timeline = new Timeline({
        data: "nested",
        defaults: defaults2 || {},
        targets: parent && parent.data === "nested" ? parent.vars.targets : parsedTargets
      });
      tl.kill();
      tl.parent = tl._dp = _assertThisInitialized(_this3);
      tl._start = 0;
      if (stagger || _isFuncOrString(duration) || _isFuncOrString(delay)) {
        l = parsedTargets.length;
        staggerFunc = stagger && distribute(stagger);
        if (_isObject(stagger)) {
          for (p in stagger) {
            if (~_staggerTweenProps.indexOf(p)) {
              staggerVarsToMerge || (staggerVarsToMerge = {});
              staggerVarsToMerge[p] = stagger[p];
            }
          }
        }
        for (i = 0; i < l; i++) {
          copy = _copyExcluding(vars, _staggerPropsToSkip);
          copy.stagger = 0;
          yoyoEase && (copy.yoyoEase = yoyoEase);
          staggerVarsToMerge && _merge(copy, staggerVarsToMerge);
          curTarget = parsedTargets[i];
          copy.duration = +_parseFuncOrString(duration, _assertThisInitialized(_this3), i, curTarget, parsedTargets);
          copy.delay = (+_parseFuncOrString(delay, _assertThisInitialized(_this3), i, curTarget, parsedTargets) || 0) - _this3._delay;
          if (!stagger && l === 1 && copy.delay) {
            _this3._delay = delay = copy.delay;
            _this3._start += delay;
            copy.delay = 0;
          }
          tl.to(curTarget, copy, staggerFunc ? staggerFunc(i, curTarget, parsedTargets) : 0);
          tl._ease = _easeMap.none;
        }
        tl.duration() ? duration = delay = 0 : _this3.timeline = 0;
      } else if (keyframes) {
        _inheritDefaults(_setDefaults(tl.vars.defaults, {
          ease: "none"
        }));
        tl._ease = _parseEase(keyframes.ease || vars.ease || "none");
        var time = 0, a, kf, v;
        if (_isArray(keyframes)) {
          keyframes.forEach(function(frame) {
            return tl.to(parsedTargets, frame, ">");
          });
          tl.duration();
        } else {
          copy = {};
          for (p in keyframes) {
            p === "ease" || p === "easeEach" || _parseKeyframe(p, keyframes[p], copy, keyframes.easeEach);
          }
          for (p in copy) {
            a = copy[p].sort(function(a2, b) {
              return a2.t - b.t;
            });
            time = 0;
            for (i = 0; i < a.length; i++) {
              kf = a[i];
              v = {
                ease: kf.e,
                duration: (kf.t - (i ? a[i - 1].t : 0)) / 100 * duration
              };
              v[p] = kf.v;
              tl.to(parsedTargets, v, time);
              time += v.duration;
            }
          }
          tl.duration() < duration && tl.to({}, {
            duration: duration - tl.duration()
          });
        }
      }
      duration || _this3.duration(duration = tl.duration());
    } else {
      _this3.timeline = 0;
    }
    if (overwrite === true && !_suppressOverwrites) {
      _overwritingTween = _assertThisInitialized(_this3);
      _globalTimeline.killTweensOf(parsedTargets);
      _overwritingTween = 0;
    }
    _addToTimeline(parent, _assertThisInitialized(_this3), position);
    vars.reversed && _this3.reverse();
    vars.paused && _this3.paused(true);
    if (immediateRender || !duration && !keyframes && _this3._start === _roundPrecise(parent._time) && _isNotFalse(immediateRender) && _hasNoPausedAncestors(_assertThisInitialized(_this3)) && parent.data !== "nested") {
      _this3._tTime = -_tinyNum;
      _this3.render(Math.max(0, -delay) || 0);
    }
    scrollTrigger && _scrollTrigger(_assertThisInitialized(_this3), scrollTrigger);
    return _this3;
  }
  var _proto3 = Tween2.prototype;
  _proto3.render = function render3(totalTime, suppressEvents, force) {
    var prevTime = this._time, tDur = this._tDur, dur = this._dur, isNegative = totalTime < 0, tTime = totalTime > tDur - _tinyNum && !isNegative ? tDur : totalTime < _tinyNum ? 0 : totalTime, time, pt, iteration, cycleDuration, prevIteration, isYoyo, ratio, timeline2, yoyoEase;
    if (!dur) {
      _renderZeroDurationTween(this, totalTime, suppressEvents, force);
    } else if (tTime !== this._tTime || !totalTime || force || !this._initted && this._tTime || this._startAt && this._zTime < 0 !== isNegative) {
      time = tTime;
      timeline2 = this.timeline;
      if (this._repeat) {
        cycleDuration = dur + this._rDelay;
        if (this._repeat < -1 && isNegative) {
          return this.totalTime(cycleDuration * 100 + totalTime, suppressEvents, force);
        }
        time = _roundPrecise(tTime % cycleDuration);
        if (tTime === tDur) {
          iteration = this._repeat;
          time = dur;
        } else {
          iteration = ~~(tTime / cycleDuration);
          if (iteration && iteration === _roundPrecise(tTime / cycleDuration)) {
            time = dur;
            iteration--;
          }
          time > dur && (time = dur);
        }
        isYoyo = this._yoyo && iteration & 1;
        if (isYoyo) {
          yoyoEase = this._yEase;
          time = dur - time;
        }
        prevIteration = _animationCycle(this._tTime, cycleDuration);
        if (time === prevTime && !force && this._initted && iteration === prevIteration) {
          this._tTime = tTime;
          return this;
        }
        if (iteration !== prevIteration) {
          timeline2 && this._yEase && _propagateYoyoEase(timeline2, isYoyo);
          if (this.vars.repeatRefresh && !isYoyo && !this._lock && this._time !== cycleDuration && this._initted) {
            this._lock = force = 1;
            this.render(_roundPrecise(cycleDuration * iteration), true).invalidate()._lock = 0;
          }
        }
      }
      if (!this._initted) {
        if (_attemptInitTween(this, isNegative ? totalTime : time, force, suppressEvents, tTime)) {
          this._tTime = 0;
          return this;
        }
        if (prevTime !== this._time && !(force && this.vars.repeatRefresh && iteration !== prevIteration)) {
          return this;
        }
        if (dur !== this._dur) {
          return this.render(totalTime, suppressEvents, force);
        }
      }
      this._tTime = tTime;
      this._time = time;
      if (!this._act && this._ts) {
        this._act = 1;
        this._lazy = 0;
      }
      this.ratio = ratio = (yoyoEase || this._ease)(time / dur);
      if (this._from) {
        this.ratio = ratio = 1 - ratio;
      }
      if (time && !prevTime && !suppressEvents && !iteration) {
        _callback(this, "onStart");
        if (this._tTime !== tTime) {
          return this;
        }
      }
      pt = this._pt;
      while (pt) {
        pt.r(ratio, pt.d);
        pt = pt._next;
      }
      timeline2 && timeline2.render(totalTime < 0 ? totalTime : timeline2._dur * timeline2._ease(time / this._dur), suppressEvents, force) || this._startAt && (this._zTime = totalTime);
      if (this._onUpdate && !suppressEvents) {
        isNegative && _rewindStartAt(this, totalTime, suppressEvents, force);
        _callback(this, "onUpdate");
      }
      this._repeat && iteration !== prevIteration && this.vars.onRepeat && !suppressEvents && this.parent && _callback(this, "onRepeat");
      if ((tTime === this._tDur || !tTime) && this._tTime === tTime) {
        isNegative && !this._onUpdate && _rewindStartAt(this, totalTime, true, true);
        (totalTime || !dur) && (tTime === this._tDur && this._ts > 0 || !tTime && this._ts < 0) && _removeFromParent(this, 1);
        if (!suppressEvents && !(isNegative && !prevTime) && (tTime || prevTime || isYoyo)) {
          _callback(this, tTime === tDur ? "onComplete" : "onReverseComplete", true);
          this._prom && !(tTime < tDur && this.timeScale() > 0) && this._prom();
        }
      }
    }
    return this;
  };
  _proto3.targets = function targets() {
    return this._targets;
  };
  _proto3.invalidate = function invalidate(soft) {
    (!soft || !this.vars.runBackwards) && (this._startAt = 0);
    this._pt = this._op = this._onUpdate = this._lazy = this.ratio = 0;
    this._ptLookup = [];
    this.timeline && this.timeline.invalidate(soft);
    return _Animation2.prototype.invalidate.call(this, soft);
  };
  _proto3.resetTo = function resetTo(property, value, start, startIsRelative, skipRecursion) {
    _tickerActive || _ticker.wake();
    this._ts || this.play();
    var time = Math.min(this._dur, (this._dp._time - this._start) * this._ts), ratio;
    this._initted || _initTween(this, time);
    ratio = this._ease(time / this._dur);
    if (_updatePropTweens(this, property, value, start, startIsRelative, ratio, time, skipRecursion)) {
      return this.resetTo(property, value, start, startIsRelative, 1);
    }
    _alignPlayhead(this, 0);
    this.parent || _addLinkedListItem(this._dp, this, "_first", "_last", this._dp._sort ? "_start" : 0);
    return this.render(0);
  };
  _proto3.kill = function kill(targets, vars) {
    if (vars === void 0) {
      vars = "all";
    }
    if (!targets && (!vars || vars === "all")) {
      this._lazy = this._pt = 0;
      return this.parent ? _interrupt(this) : this;
    }
    if (this.timeline) {
      var tDur = this.timeline.totalDuration();
      this.timeline.killTweensOf(targets, vars, _overwritingTween && _overwritingTween.vars.overwrite !== true)._first || _interrupt(this);
      this.parent && tDur !== this.timeline.totalDuration() && _setDuration(this, this._dur * this.timeline._tDur / tDur, 0, 1);
      return this;
    }
    var parsedTargets = this._targets, killingTargets = targets ? toArray(targets) : parsedTargets, propTweenLookup = this._ptLookup, firstPT = this._pt, overwrittenProps, curLookup, curOverwriteProps, props, p, pt, i;
    if ((!vars || vars === "all") && _arraysMatch(parsedTargets, killingTargets)) {
      vars === "all" && (this._pt = 0);
      return _interrupt(this);
    }
    overwrittenProps = this._op = this._op || [];
    if (vars !== "all") {
      if (_isString(vars)) {
        p = {};
        _forEachName(vars, function(name) {
          return p[name] = 1;
        });
        vars = p;
      }
      vars = _addAliasesToVars(parsedTargets, vars);
    }
    i = parsedTargets.length;
    while (i--) {
      if (~killingTargets.indexOf(parsedTargets[i])) {
        curLookup = propTweenLookup[i];
        if (vars === "all") {
          overwrittenProps[i] = vars;
          props = curLookup;
          curOverwriteProps = {};
        } else {
          curOverwriteProps = overwrittenProps[i] = overwrittenProps[i] || {};
          props = vars;
        }
        for (p in props) {
          pt = curLookup && curLookup[p];
          if (pt) {
            if (!("kill" in pt.d) || pt.d.kill(p) === true) {
              _removeLinkedListItem(this, pt, "_pt");
            }
            delete curLookup[p];
          }
          if (curOverwriteProps !== "all") {
            curOverwriteProps[p] = 1;
          }
        }
      }
    }
    this._initted && !this._pt && firstPT && _interrupt(this);
    return this;
  };
  Tween2.to = function to(targets, vars) {
    return new Tween2(targets, vars, arguments[2]);
  };
  Tween2.from = function from(targets, vars) {
    return _createTweenType(1, arguments);
  };
  Tween2.delayedCall = function delayedCall(delay, callback, params, scope) {
    return new Tween2(callback, 0, {
      immediateRender: false,
      lazy: false,
      overwrite: false,
      delay,
      onComplete: callback,
      onReverseComplete: callback,
      onCompleteParams: params,
      onReverseCompleteParams: params,
      callbackScope: scope
    });
  };
  Tween2.fromTo = function fromTo(targets, fromVars, toVars) {
    return _createTweenType(2, arguments);
  };
  Tween2.set = function set(targets, vars) {
    vars.duration = 0;
    vars.repeatDelay || (vars.repeat = 0);
    return new Tween2(targets, vars);
  };
  Tween2.killTweensOf = function killTweensOf(targets, props, onlyActive) {
    return _globalTimeline.killTweensOf(targets, props, onlyActive);
  };
  return Tween2;
}(Animation);
_setDefaults(Tween.prototype, {
  _targets: [],
  _lazy: 0,
  _startAt: 0,
  _op: 0,
  _onInit: 0
});
_forEachName("staggerTo,staggerFrom,staggerFromTo", function(name) {
  Tween[name] = function() {
    var tl = new Timeline(), params = _slice.call(arguments, 0);
    params.splice(name === "staggerFromTo" ? 5 : 4, 0, 0);
    return tl[name].apply(tl, params);
  };
});
var _setterPlain = function _setterPlain2(target, property, value) {
  return target[property] = value;
};
var _setterFunc = function _setterFunc2(target, property, value) {
  return target[property](value);
};
var _setterFuncWithParam = function _setterFuncWithParam2(target, property, value, data) {
  return target[property](data.fp, value);
};
var _setterAttribute = function _setterAttribute2(target, property, value) {
  return target.setAttribute(property, value);
};
var _getSetter = function _getSetter2(target, property) {
  return _isFunction(target[property]) ? _setterFunc : _isUndefined(target[property]) && target.setAttribute ? _setterAttribute : _setterPlain;
};
var _renderPlain = function _renderPlain2(ratio, data) {
  return data.set(data.t, data.p, Math.round((data.s + data.c * ratio) * 1e6) / 1e6, data);
};
var _renderBoolean = function _renderBoolean2(ratio, data) {
  return data.set(data.t, data.p, !!(data.s + data.c * ratio), data);
};
var _renderComplexString = function _renderComplexString2(ratio, data) {
  var pt = data._pt, s = "";
  if (!ratio && data.b) {
    s = data.b;
  } else if (ratio === 1 && data.e) {
    s = data.e;
  } else {
    while (pt) {
      s = pt.p + (pt.m ? pt.m(pt.s + pt.c * ratio) : Math.round((pt.s + pt.c * ratio) * 1e4) / 1e4) + s;
      pt = pt._next;
    }
    s += data.c;
  }
  data.set(data.t, data.p, s, data);
};
var _renderPropTweens = function _renderPropTweens2(ratio, data) {
  var pt = data._pt;
  while (pt) {
    pt.r(ratio, pt.d);
    pt = pt._next;
  }
};
var _addPluginModifier = function _addPluginModifier2(modifier, tween, target, property) {
  var pt = this._pt, next;
  while (pt) {
    next = pt._next;
    pt.p === property && pt.modifier(modifier, tween, target);
    pt = next;
  }
};
var _killPropTweensOf = function _killPropTweensOf2(property) {
  var pt = this._pt, hasNonDependentRemaining, next;
  while (pt) {
    next = pt._next;
    if (pt.p === property && !pt.op || pt.op === property) {
      _removeLinkedListItem(this, pt, "_pt");
    } else if (!pt.dep) {
      hasNonDependentRemaining = 1;
    }
    pt = next;
  }
  return !hasNonDependentRemaining;
};
var _setterWithModifier = function _setterWithModifier2(target, property, value, data) {
  data.mSet(target, property, data.m.call(data.tween, value, data.mt), data);
};
var _sortPropTweensByPriority = function _sortPropTweensByPriority2(parent) {
  var pt = parent._pt, next, pt2, first, last;
  while (pt) {
    next = pt._next;
    pt2 = first;
    while (pt2 && pt2.pr > pt.pr) {
      pt2 = pt2._next;
    }
    if (pt._prev = pt2 ? pt2._prev : last) {
      pt._prev._next = pt;
    } else {
      first = pt;
    }
    if (pt._next = pt2) {
      pt2._prev = pt;
    } else {
      last = pt;
    }
    pt = next;
  }
  parent._pt = first;
};
var PropTween = /* @__PURE__ */ function() {
  function PropTween2(next, target, prop, start, change, renderer, data, setter, priority) {
    this.t = target;
    this.s = start;
    this.c = change;
    this.p = prop;
    this.r = renderer || _renderPlain;
    this.d = data || this;
    this.set = setter || _setterPlain;
    this.pr = priority || 0;
    this._next = next;
    if (next) {
      next._prev = this;
    }
  }
  var _proto4 = PropTween2.prototype;
  _proto4.modifier = function modifier(func, tween, target) {
    this.mSet = this.mSet || this.set;
    this.set = _setterWithModifier;
    this.m = func;
    this.mt = target;
    this.tween = tween;
  };
  return PropTween2;
}();
_forEachName(_callbackNames + "parent,duration,ease,delay,overwrite,runBackwards,startAt,yoyo,immediateRender,repeat,repeatDelay,data,paused,reversed,lazy,callbackScope,stringFilter,id,yoyoEase,stagger,inherit,repeatRefresh,keyframes,autoRevert,scrollTrigger", function(name) {
  return _reservedProps[name] = 1;
});
_globals.TweenMax = _globals.TweenLite = Tween;
_globals.TimelineLite = _globals.TimelineMax = Timeline;
_globalTimeline = new Timeline({
  sortChildren: false,
  defaults: _defaults,
  autoRemoveChildren: true,
  id: "root",
  smoothChildTiming: true
});
_config.stringFilter = _colorStringFilter;
var _media = [];
var _listeners = {};
var _emptyArray = [];
var _lastMediaTime = 0;
var _contextID = 0;
var _dispatch = function _dispatch2(type) {
  return (_listeners[type] || _emptyArray).map(function(f) {
    return f();
  });
};
var _onMediaChange = function _onMediaChange2() {
  var time = Date.now(), matches = [];
  if (time - _lastMediaTime > 2) {
    _dispatch("matchMediaInit");
    _media.forEach(function(c) {
      var queries = c.queries, conditions = c.conditions, match, p, anyMatch, toggled;
      for (p in queries) {
        match = _win.matchMedia(queries[p]).matches;
        match && (anyMatch = 1);
        if (match !== conditions[p]) {
          conditions[p] = match;
          toggled = 1;
        }
      }
      if (toggled) {
        c.revert();
        anyMatch && matches.push(c);
      }
    });
    _dispatch("matchMediaRevert");
    matches.forEach(function(c) {
      return c.onMatch(c, function(func) {
        return c.add(null, func);
      });
    });
    _lastMediaTime = time;
    _dispatch("matchMedia");
  }
};
var Context = /* @__PURE__ */ function() {
  function Context2(func, scope) {
    this.selector = scope && selector(scope);
    this.data = [];
    this._r = [];
    this.isReverted = false;
    this.id = _contextID++;
    func && this.add(func);
  }
  var _proto5 = Context2.prototype;
  _proto5.add = function add(name, func, scope) {
    if (_isFunction(name)) {
      scope = func;
      func = name;
      name = _isFunction;
    }
    var self2 = this, f = function f2() {
      var prev = _context, prevSelector = self2.selector, result;
      prev && prev !== self2 && prev.data.push(self2);
      scope && (self2.selector = selector(scope));
      _context = self2;
      result = func.apply(self2, arguments);
      _isFunction(result) && self2._r.push(result);
      _context = prev;
      self2.selector = prevSelector;
      self2.isReverted = false;
      return result;
    };
    self2.last = f;
    return name === _isFunction ? f(self2, function(func2) {
      return self2.add(null, func2);
    }) : name ? self2[name] = f : f;
  };
  _proto5.ignore = function ignore(func) {
    var prev = _context;
    _context = null;
    func(this);
    _context = prev;
  };
  _proto5.getTweens = function getTweens() {
    var a = [];
    this.data.forEach(function(e) {
      return e instanceof Context2 ? a.push.apply(a, e.getTweens()) : e instanceof Tween && !(e.parent && e.parent.data === "nested") && a.push(e);
    });
    return a;
  };
  _proto5.clear = function clear() {
    this._r.length = this.data.length = 0;
  };
  _proto5.kill = function kill(revert, matchMedia2) {
    var _this4 = this;
    if (revert) {
      (function() {
        var tweens = _this4.getTweens(), i2 = _this4.data.length, t;
        while (i2--) {
          t = _this4.data[i2];
          if (t.data === "isFlip") {
            t.revert();
            t.getChildren(true, true, false).forEach(function(tween) {
              return tweens.splice(tweens.indexOf(tween), 1);
            });
          }
        }
        tweens.map(function(t2) {
          return {
            g: t2._dur || t2._delay || t2._sat && !t2._sat.vars.immediateRender ? t2.globalTime(0) : -Infinity,
            t: t2
          };
        }).sort(function(a, b) {
          return b.g - a.g || -Infinity;
        }).forEach(function(o) {
          return o.t.revert(revert);
        });
        i2 = _this4.data.length;
        while (i2--) {
          t = _this4.data[i2];
          if (t instanceof Timeline) {
            if (t.data !== "nested") {
              t.scrollTrigger && t.scrollTrigger.revert();
              t.kill();
            }
          } else {
            !(t instanceof Tween) && t.revert && t.revert(revert);
          }
        }
        _this4._r.forEach(function(f) {
          return f(revert, _this4);
        });
        _this4.isReverted = true;
      })();
    } else {
      this.data.forEach(function(e) {
        return e.kill && e.kill();
      });
    }
    this.clear();
    if (matchMedia2) {
      var i = _media.length;
      while (i--) {
        _media[i].id === this.id && _media.splice(i, 1);
      }
    }
  };
  _proto5.revert = function revert(config3) {
    this.kill(config3 || {});
  };
  return Context2;
}();
var MatchMedia = /* @__PURE__ */ function() {
  function MatchMedia2(scope) {
    this.contexts = [];
    this.scope = scope;
    _context && _context.data.push(this);
  }
  var _proto6 = MatchMedia2.prototype;
  _proto6.add = function add(conditions, func, scope) {
    _isObject(conditions) || (conditions = {
      matches: conditions
    });
    var context3 = new Context(0, scope || this.scope), cond = context3.conditions = {}, mq, p, active;
    _context && !context3.selector && (context3.selector = _context.selector);
    this.contexts.push(context3);
    func = context3.add("onMatch", func);
    context3.queries = conditions;
    for (p in conditions) {
      if (p === "all") {
        active = 1;
      } else {
        mq = _win.matchMedia(conditions[p]);
        if (mq) {
          _media.indexOf(context3) < 0 && _media.push(context3);
          (cond[p] = mq.matches) && (active = 1);
          mq.addListener ? mq.addListener(_onMediaChange) : mq.addEventListener("change", _onMediaChange);
        }
      }
    }
    active && func(context3, function(f) {
      return context3.add(null, f);
    });
    return this;
  };
  _proto6.revert = function revert(config3) {
    this.kill(config3 || {});
  };
  _proto6.kill = function kill(revert) {
    this.contexts.forEach(function(c) {
      return c.kill(revert, true);
    });
  };
  return MatchMedia2;
}();
var _gsap = {
  registerPlugin: function registerPlugin() {
    for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
      args[_key2] = arguments[_key2];
    }
    args.forEach(function(config3) {
      return _createPlugin(config3);
    });
  },
  timeline: function timeline(vars) {
    return new Timeline(vars);
  },
  getTweensOf: function getTweensOf(targets, onlyActive) {
    return _globalTimeline.getTweensOf(targets, onlyActive);
  },
  getProperty: function getProperty(target, property, unit, uncache) {
    _isString(target) && (target = toArray(target)[0]);
    var getter = _getCache(target || {}).get, format = unit ? _passThrough : _numericIfPossible;
    unit === "native" && (unit = "");
    return !target ? target : !property ? function(property2, unit2, uncache2) {
      return format((_plugins[property2] && _plugins[property2].get || getter)(target, property2, unit2, uncache2));
    } : format((_plugins[property] && _plugins[property].get || getter)(target, property, unit, uncache));
  },
  quickSetter: function quickSetter(target, property, unit) {
    target = toArray(target);
    if (target.length > 1) {
      var setters = target.map(function(t) {
        return gsap.quickSetter(t, property, unit);
      }), l = setters.length;
      return function(value) {
        var i = l;
        while (i--) {
          setters[i](value);
        }
      };
    }
    target = target[0] || {};
    var Plugin = _plugins[property], cache = _getCache(target), p = cache.harness && (cache.harness.aliases || {})[property] || property, setter = Plugin ? function(value) {
      var p2 = new Plugin();
      _quickTween._pt = 0;
      p2.init(target, unit ? value + unit : value, _quickTween, 0, [target]);
      p2.render(1, p2);
      _quickTween._pt && _renderPropTweens(1, _quickTween);
    } : cache.set(target, p);
    return Plugin ? setter : function(value) {
      return setter(target, p, unit ? value + unit : value, cache, 1);
    };
  },
  quickTo: function quickTo(target, property, vars) {
    var _merge22;
    var tween = gsap.to(target, _merge((_merge22 = {}, _merge22[property] = "+=0.1", _merge22.paused = true, _merge22), vars || {})), func = function func2(value, start, startIsRelative) {
      return tween.resetTo(property, value, start, startIsRelative);
    };
    func.tween = tween;
    return func;
  },
  isTweening: function isTweening(targets) {
    return _globalTimeline.getTweensOf(targets, true).length > 0;
  },
  defaults: function defaults(value) {
    value && value.ease && (value.ease = _parseEase(value.ease, _defaults.ease));
    return _mergeDeep(_defaults, value || {});
  },
  config: function config2(value) {
    return _mergeDeep(_config, value || {});
  },
  registerEffect: function registerEffect(_ref3) {
    var name = _ref3.name, effect = _ref3.effect, plugins = _ref3.plugins, defaults2 = _ref3.defaults, extendTimeline = _ref3.extendTimeline;
    (plugins || "").split(",").forEach(function(pluginName) {
      return pluginName && !_plugins[pluginName] && !_globals[pluginName] && _warn(name + " effect requires " + pluginName + " plugin.");
    });
    _effects[name] = function(targets, vars, tl) {
      return effect(toArray(targets), _setDefaults(vars || {}, defaults2), tl);
    };
    if (extendTimeline) {
      Timeline.prototype[name] = function(targets, vars, position) {
        return this.add(_effects[name](targets, _isObject(vars) ? vars : (position = vars) && {}, this), position);
      };
    }
  },
  registerEase: function registerEase(name, ease) {
    _easeMap[name] = _parseEase(ease);
  },
  parseEase: function parseEase(ease, defaultEase) {
    return arguments.length ? _parseEase(ease, defaultEase) : _easeMap;
  },
  getById: function getById(id) {
    return _globalTimeline.getById(id);
  },
  exportRoot: function exportRoot(vars, includeDelayedCalls) {
    if (vars === void 0) {
      vars = {};
    }
    var tl = new Timeline(vars), child, next;
    tl.smoothChildTiming = _isNotFalse(vars.smoothChildTiming);
    _globalTimeline.remove(tl);
    tl._dp = 0;
    tl._time = tl._tTime = _globalTimeline._time;
    child = _globalTimeline._first;
    while (child) {
      next = child._next;
      if (includeDelayedCalls || !(!child._dur && child instanceof Tween && child.vars.onComplete === child._targets[0])) {
        _addToTimeline(tl, child, child._start - child._delay);
      }
      child = next;
    }
    _addToTimeline(_globalTimeline, tl, 0);
    return tl;
  },
  context: function context(func, scope) {
    return func ? new Context(func, scope) : _context;
  },
  matchMedia: function matchMedia(scope) {
    return new MatchMedia(scope);
  },
  matchMediaRefresh: function matchMediaRefresh() {
    return _media.forEach(function(c) {
      var cond = c.conditions, found, p;
      for (p in cond) {
        if (cond[p]) {
          cond[p] = false;
          found = 1;
        }
      }
      found && c.revert();
    }) || _onMediaChange();
  },
  addEventListener: function addEventListener(type, callback) {
    var a = _listeners[type] || (_listeners[type] = []);
    ~a.indexOf(callback) || a.push(callback);
  },
  removeEventListener: function removeEventListener(type, callback) {
    var a = _listeners[type], i = a && a.indexOf(callback);
    i >= 0 && a.splice(i, 1);
  },
  utils: {
    wrap,
    wrapYoyo,
    distribute,
    random,
    snap,
    normalize: normalize2,
    getUnit,
    clamp: clamp2,
    splitColor,
    toArray,
    selector,
    mapRange,
    pipe,
    unitize,
    interpolate,
    shuffle
  },
  install: _install,
  effects: _effects,
  ticker: _ticker,
  updateRoot: Timeline.updateRoot,
  plugins: _plugins,
  globalTimeline: _globalTimeline,
  core: {
    PropTween,
    globals: _addGlobal,
    Tween,
    Timeline,
    Animation,
    getCache: _getCache,
    _removeLinkedListItem,
    reverting: function reverting() {
      return _reverting;
    },
    context: function context2(toAdd) {
      if (toAdd && _context) {
        _context.data.push(toAdd);
        toAdd._ctx = _context;
      }
      return _context;
    },
    suppressOverwrites: function suppressOverwrites(value) {
      return _suppressOverwrites = value;
    }
  }
};
_forEachName("to,from,fromTo,delayedCall,set,killTweensOf", function(name) {
  return _gsap[name] = Tween[name];
});
_ticker.add(Timeline.updateRoot);
_quickTween = _gsap.to({}, {
  duration: 0
});
var _getPluginPropTween = function _getPluginPropTween2(plugin, prop) {
  var pt = plugin._pt;
  while (pt && pt.p !== prop && pt.op !== prop && pt.fp !== prop) {
    pt = pt._next;
  }
  return pt;
};
var _addModifiers = function _addModifiers2(tween, modifiers) {
  var targets = tween._targets, p, i, pt;
  for (p in modifiers) {
    i = targets.length;
    while (i--) {
      pt = tween._ptLookup[i][p];
      if (pt && (pt = pt.d)) {
        if (pt._pt) {
          pt = _getPluginPropTween(pt, p);
        }
        pt && pt.modifier && pt.modifier(modifiers[p], tween, targets[i], p);
      }
    }
  }
};
var _buildModifierPlugin = function _buildModifierPlugin2(name, modifier) {
  return {
    name,
    rawVars: 1,
    //don't pre-process function-based values or "random()" strings.
    init: function init4(target, vars, tween) {
      tween._onInit = function(tween2) {
        var temp, p;
        if (_isString(vars)) {
          temp = {};
          _forEachName(vars, function(name2) {
            return temp[name2] = 1;
          });
          vars = temp;
        }
        if (modifier) {
          temp = {};
          for (p in vars) {
            temp[p] = modifier(vars[p]);
          }
          vars = temp;
        }
        _addModifiers(tween2, vars);
      };
    }
  };
};
var gsap = _gsap.registerPlugin({
  name: "attr",
  init: function init(target, vars, tween, index, targets) {
    var p, pt, v;
    this.tween = tween;
    for (p in vars) {
      v = target.getAttribute(p) || "";
      pt = this.add(target, "setAttribute", (v || 0) + "", vars[p], index, targets, 0, 0, p);
      pt.op = p;
      pt.b = v;
      this._props.push(p);
    }
  },
  render: function render(ratio, data) {
    var pt = data._pt;
    while (pt) {
      _reverting ? pt.set(pt.t, pt.p, pt.b, pt) : pt.r(ratio, pt.d);
      pt = pt._next;
    }
  }
}, {
  name: "endArray",
  init: function init2(target, value) {
    var i = value.length;
    while (i--) {
      this.add(target, i, target[i] || 0, value[i], 0, 0, 0, 0, 0, 1);
    }
  }
}, _buildModifierPlugin("roundProps", _roundModifier), _buildModifierPlugin("modifiers"), _buildModifierPlugin("snap", snap)) || _gsap;
Tween.version = Timeline.version = gsap.version = "3.12.5";
_coreReady = 1;
_windowExists() && _wake();
var Power0 = _easeMap.Power0;
var Power1 = _easeMap.Power1;
var Power2 = _easeMap.Power2;
var Power3 = _easeMap.Power3;
var Power4 = _easeMap.Power4;
var Linear = _easeMap.Linear;
var Quad = _easeMap.Quad;
var Cubic = _easeMap.Cubic;
var Quart = _easeMap.Quart;
var Quint = _easeMap.Quint;
var Strong = _easeMap.Strong;
var Elastic = _easeMap.Elastic;
var Back = _easeMap.Back;
var SteppedEase = _easeMap.SteppedEase;
var Bounce = _easeMap.Bounce;
var Sine = _easeMap.Sine;
var Expo = _easeMap.Expo;
var Circ = _easeMap.Circ;

// node_modules/gsap/CSSPlugin.js
var _win2;
var _doc2;
var _docElement;
var _pluginInitted;
var _tempDiv;
var _tempDivStyler;
var _recentSetterPlugin;
var _reverting2;
var _windowExists3 = function _windowExists4() {
  return typeof window !== "undefined";
};
var _transformProps = {};
var _RAD2DEG = 180 / Math.PI;
var _DEG2RAD = Math.PI / 180;
var _atan2 = Math.atan2;
var _bigNum2 = 1e8;
var _capsExp = /([A-Z])/g;
var _horizontalExp = /(left|right|width|margin|padding|x)/i;
var _complexExp = /[\s,\(]\S/;
var _propertyAliases = {
  autoAlpha: "opacity,visibility",
  scale: "scaleX,scaleY",
  alpha: "opacity"
};
var _renderCSSProp = function _renderCSSProp2(ratio, data) {
  return data.set(data.t, data.p, Math.round((data.s + data.c * ratio) * 1e4) / 1e4 + data.u, data);
};
var _renderPropWithEnd = function _renderPropWithEnd2(ratio, data) {
  return data.set(data.t, data.p, ratio === 1 ? data.e : Math.round((data.s + data.c * ratio) * 1e4) / 1e4 + data.u, data);
};
var _renderCSSPropWithBeginning = function _renderCSSPropWithBeginning2(ratio, data) {
  return data.set(data.t, data.p, ratio ? Math.round((data.s + data.c * ratio) * 1e4) / 1e4 + data.u : data.b, data);
};
var _renderRoundedCSSProp = function _renderRoundedCSSProp2(ratio, data) {
  var value = data.s + data.c * ratio;
  data.set(data.t, data.p, ~~(value + (value < 0 ? -0.5 : 0.5)) + data.u, data);
};
var _renderNonTweeningValue = function _renderNonTweeningValue2(ratio, data) {
  return data.set(data.t, data.p, ratio ? data.e : data.b, data);
};
var _renderNonTweeningValueOnlyAtEnd = function _renderNonTweeningValueOnlyAtEnd2(ratio, data) {
  return data.set(data.t, data.p, ratio !== 1 ? data.b : data.e, data);
};
var _setterCSSStyle = function _setterCSSStyle2(target, property, value) {
  return target.style[property] = value;
};
var _setterCSSProp = function _setterCSSProp2(target, property, value) {
  return target.style.setProperty(property, value);
};
var _setterTransform = function _setterTransform2(target, property, value) {
  return target._gsap[property] = value;
};
var _setterScale = function _setterScale2(target, property, value) {
  return target._gsap.scaleX = target._gsap.scaleY = value;
};
var _setterScaleWithRender = function _setterScaleWithRender2(target, property, value, data, ratio) {
  var cache = target._gsap;
  cache.scaleX = cache.scaleY = value;
  cache.renderTransform(ratio, cache);
};
var _setterTransformWithRender = function _setterTransformWithRender2(target, property, value, data, ratio) {
  var cache = target._gsap;
  cache[property] = value;
  cache.renderTransform(ratio, cache);
};
var _transformProp = "transform";
var _transformOriginProp = _transformProp + "Origin";
var _saveStyle = function _saveStyle2(property, isNotCSS) {
  var _this = this;
  var target = this.target, style = target.style, cache = target._gsap;
  if (property in _transformProps && style) {
    this.tfm = this.tfm || {};
    if (property !== "transform") {
      property = _propertyAliases[property] || property;
      ~property.indexOf(",") ? property.split(",").forEach(function(a) {
        return _this.tfm[a] = _get(target, a);
      }) : this.tfm[property] = cache.x ? cache[property] : _get(target, property);
      property === _transformOriginProp && (this.tfm.zOrigin = cache.zOrigin);
    } else {
      return _propertyAliases.transform.split(",").forEach(function(p) {
        return _saveStyle2.call(_this, p, isNotCSS);
      });
    }
    if (this.props.indexOf(_transformProp) >= 0) {
      return;
    }
    if (cache.svg) {
      this.svgo = target.getAttribute("data-svg-origin");
      this.props.push(_transformOriginProp, isNotCSS, "");
    }
    property = _transformProp;
  }
  (style || isNotCSS) && this.props.push(property, isNotCSS, style[property]);
};
var _removeIndependentTransforms = function _removeIndependentTransforms2(style) {
  if (style.translate) {
    style.removeProperty("translate");
    style.removeProperty("scale");
    style.removeProperty("rotate");
  }
};
var _revertStyle = function _revertStyle2() {
  var props = this.props, target = this.target, style = target.style, cache = target._gsap, i, p;
  for (i = 0; i < props.length; i += 3) {
    props[i + 1] ? target[props[i]] = props[i + 2] : props[i + 2] ? style[props[i]] = props[i + 2] : style.removeProperty(props[i].substr(0, 2) === "--" ? props[i] : props[i].replace(_capsExp, "-$1").toLowerCase());
  }
  if (this.tfm) {
    for (p in this.tfm) {
      cache[p] = this.tfm[p];
    }
    if (cache.svg) {
      cache.renderTransform();
      target.setAttribute("data-svg-origin", this.svgo || "");
    }
    i = _reverting2();
    if ((!i || !i.isStart) && !style[_transformProp]) {
      _removeIndependentTransforms(style);
      if (cache.zOrigin && style[_transformOriginProp]) {
        style[_transformOriginProp] += " " + cache.zOrigin + "px";
        cache.zOrigin = 0;
        cache.renderTransform();
      }
      cache.uncache = 1;
    }
  }
};
var _getStyleSaver = function _getStyleSaver2(target, properties) {
  var saver = {
    target,
    props: [],
    revert: _revertStyle,
    save: _saveStyle
  };
  target._gsap || gsap.core.getCache(target);
  properties && properties.split(",").forEach(function(p) {
    return saver.save(p);
  });
  return saver;
};
var _supports3D;
var _createElement = function _createElement2(type, ns) {
  var e = _doc2.createElementNS ? _doc2.createElementNS((ns || "http://www.w3.org/1999/xhtml").replace(/^https/, "http"), type) : _doc2.createElement(type);
  return e && e.style ? e : _doc2.createElement(type);
};
var _getComputedProperty = function _getComputedProperty2(target, property, skipPrefixFallback) {
  var cs = getComputedStyle(target);
  return cs[property] || cs.getPropertyValue(property.replace(_capsExp, "-$1").toLowerCase()) || cs.getPropertyValue(property) || !skipPrefixFallback && _getComputedProperty2(target, _checkPropPrefix(property) || property, 1) || "";
};
var _prefixes = "O,Moz,ms,Ms,Webkit".split(",");
var _checkPropPrefix = function _checkPropPrefix2(property, element, preferPrefix) {
  var e = element || _tempDiv, s = e.style, i = 5;
  if (property in s && !preferPrefix) {
    return property;
  }
  property = property.charAt(0).toUpperCase() + property.substr(1);
  while (i-- && !(_prefixes[i] + property in s)) {
  }
  return i < 0 ? null : (i === 3 ? "ms" : i >= 0 ? _prefixes[i] : "") + property;
};
var _initCore = function _initCore2() {
  if (_windowExists3() && window.document) {
    _win2 = window;
    _doc2 = _win2.document;
    _docElement = _doc2.documentElement;
    _tempDiv = _createElement("div") || {
      style: {}
    };
    _tempDivStyler = _createElement("div");
    _transformProp = _checkPropPrefix(_transformProp);
    _transformOriginProp = _transformProp + "Origin";
    _tempDiv.style.cssText = "border-width:0;line-height:0;position:absolute;padding:0";
    _supports3D = !!_checkPropPrefix("perspective");
    _reverting2 = gsap.core.reverting;
    _pluginInitted = 1;
  }
};
var _getBBoxHack = function _getBBoxHack2(swapIfPossible) {
  var svg = _createElement("svg", this.ownerSVGElement && this.ownerSVGElement.getAttribute("xmlns") || "http://www.w3.org/2000/svg"), oldParent = this.parentNode, oldSibling = this.nextSibling, oldCSS = this.style.cssText, bbox;
  _docElement.appendChild(svg);
  svg.appendChild(this);
  this.style.display = "block";
  if (swapIfPossible) {
    try {
      bbox = this.getBBox();
      this._gsapBBox = this.getBBox;
      this.getBBox = _getBBoxHack2;
    } catch (e) {
    }
  } else if (this._gsapBBox) {
    bbox = this._gsapBBox();
  }
  if (oldParent) {
    if (oldSibling) {
      oldParent.insertBefore(this, oldSibling);
    } else {
      oldParent.appendChild(this);
    }
  }
  _docElement.removeChild(svg);
  this.style.cssText = oldCSS;
  return bbox;
};
var _getAttributeFallbacks = function _getAttributeFallbacks2(target, attributesArray) {
  var i = attributesArray.length;
  while (i--) {
    if (target.hasAttribute(attributesArray[i])) {
      return target.getAttribute(attributesArray[i]);
    }
  }
};
var _getBBox = function _getBBox2(target) {
  var bounds;
  try {
    bounds = target.getBBox();
  } catch (error) {
    bounds = _getBBoxHack.call(target, true);
  }
  bounds && (bounds.width || bounds.height) || target.getBBox === _getBBoxHack || (bounds = _getBBoxHack.call(target, true));
  return bounds && !bounds.width && !bounds.x && !bounds.y ? {
    x: +_getAttributeFallbacks(target, ["x", "cx", "x1"]) || 0,
    y: +_getAttributeFallbacks(target, ["y", "cy", "y1"]) || 0,
    width: 0,
    height: 0
  } : bounds;
};
var _isSVG = function _isSVG2(e) {
  return !!(e.getCTM && (!e.parentNode || e.ownerSVGElement) && _getBBox(e));
};
var _removeProperty = function _removeProperty2(target, property) {
  if (property) {
    var style = target.style, first2Chars;
    if (property in _transformProps && property !== _transformOriginProp) {
      property = _transformProp;
    }
    if (style.removeProperty) {
      first2Chars = property.substr(0, 2);
      if (first2Chars === "ms" || property.substr(0, 6) === "webkit") {
        property = "-" + property;
      }
      style.removeProperty(first2Chars === "--" ? property : property.replace(_capsExp, "-$1").toLowerCase());
    } else {
      style.removeAttribute(property);
    }
  }
};
var _addNonTweeningPT = function _addNonTweeningPT2(plugin, target, property, beginning, end, onlySetAtEnd) {
  var pt = new PropTween(plugin._pt, target, property, 0, 1, onlySetAtEnd ? _renderNonTweeningValueOnlyAtEnd : _renderNonTweeningValue);
  plugin._pt = pt;
  pt.b = beginning;
  pt.e = end;
  plugin._props.push(property);
  return pt;
};
var _nonConvertibleUnits = {
  deg: 1,
  rad: 1,
  turn: 1
};
var _nonStandardLayouts = {
  grid: 1,
  flex: 1
};
var _convertToUnit = function _convertToUnit2(target, property, value, unit) {
  var curValue = parseFloat(value) || 0, curUnit = (value + "").trim().substr((curValue + "").length) || "px", style = _tempDiv.style, horizontal = _horizontalExp.test(property), isRootSVG = target.tagName.toLowerCase() === "svg", measureProperty = (isRootSVG ? "client" : "offset") + (horizontal ? "Width" : "Height"), amount = 100, toPixels = unit === "px", toPercent = unit === "%", px, parent, cache, isSVG;
  if (unit === curUnit || !curValue || _nonConvertibleUnits[unit] || _nonConvertibleUnits[curUnit]) {
    return curValue;
  }
  curUnit !== "px" && !toPixels && (curValue = _convertToUnit2(target, property, value, "px"));
  isSVG = target.getCTM && _isSVG(target);
  if ((toPercent || curUnit === "%") && (_transformProps[property] || ~property.indexOf("adius"))) {
    px = isSVG ? target.getBBox()[horizontal ? "width" : "height"] : target[measureProperty];
    return _round(toPercent ? curValue / px * amount : curValue / 100 * px);
  }
  style[horizontal ? "width" : "height"] = amount + (toPixels ? curUnit : unit);
  parent = ~property.indexOf("adius") || unit === "em" && target.appendChild && !isRootSVG ? target : target.parentNode;
  if (isSVG) {
    parent = (target.ownerSVGElement || {}).parentNode;
  }
  if (!parent || parent === _doc2 || !parent.appendChild) {
    parent = _doc2.body;
  }
  cache = parent._gsap;
  if (cache && toPercent && cache.width && horizontal && cache.time === _ticker.time && !cache.uncache) {
    return _round(curValue / cache.width * amount);
  } else {
    if (toPercent && (property === "height" || property === "width")) {
      var v = target.style[property];
      target.style[property] = amount + unit;
      px = target[measureProperty];
      v ? target.style[property] = v : _removeProperty(target, property);
    } else {
      (toPercent || curUnit === "%") && !_nonStandardLayouts[_getComputedProperty(parent, "display")] && (style.position = _getComputedProperty(target, "position"));
      parent === target && (style.position = "static");
      parent.appendChild(_tempDiv);
      px = _tempDiv[measureProperty];
      parent.removeChild(_tempDiv);
      style.position = "absolute";
    }
    if (horizontal && toPercent) {
      cache = _getCache(parent);
      cache.time = _ticker.time;
      cache.width = parent[measureProperty];
    }
  }
  return _round(toPixels ? px * curValue / amount : px && curValue ? amount / px * curValue : 0);
};
var _get = function _get2(target, property, unit, uncache) {
  var value;
  _pluginInitted || _initCore();
  if (property in _propertyAliases && property !== "transform") {
    property = _propertyAliases[property];
    if (~property.indexOf(",")) {
      property = property.split(",")[0];
    }
  }
  if (_transformProps[property] && property !== "transform") {
    value = _parseTransform(target, uncache);
    value = property !== "transformOrigin" ? value[property] : value.svg ? value.origin : _firstTwoOnly(_getComputedProperty(target, _transformOriginProp)) + " " + value.zOrigin + "px";
  } else {
    value = target.style[property];
    if (!value || value === "auto" || uncache || ~(value + "").indexOf("calc(")) {
      value = _specialProps[property] && _specialProps[property](target, property, unit) || _getComputedProperty(target, property) || _getProperty(target, property) || (property === "opacity" ? 1 : 0);
    }
  }
  return unit && !~(value + "").trim().indexOf(" ") ? _convertToUnit(target, property, value, unit) + unit : value;
};
var _tweenComplexCSSString = function _tweenComplexCSSString2(target, prop, start, end) {
  if (!start || start === "none") {
    var p = _checkPropPrefix(prop, target, 1), s = p && _getComputedProperty(target, p, 1);
    if (s && s !== start) {
      prop = p;
      start = s;
    } else if (prop === "borderColor") {
      start = _getComputedProperty(target, "borderTopColor");
    }
  }
  var pt = new PropTween(this._pt, target.style, prop, 0, 1, _renderComplexString), index = 0, matchIndex = 0, a, result, startValues, startNum, color, startValue, endValue, endNum, chunk, endUnit, startUnit, endValues;
  pt.b = start;
  pt.e = end;
  start += "";
  end += "";
  if (end === "auto") {
    startValue = target.style[prop];
    target.style[prop] = end;
    end = _getComputedProperty(target, prop) || end;
    startValue ? target.style[prop] = startValue : _removeProperty(target, prop);
  }
  a = [start, end];
  _colorStringFilter(a);
  start = a[0];
  end = a[1];
  startValues = start.match(_numWithUnitExp) || [];
  endValues = end.match(_numWithUnitExp) || [];
  if (endValues.length) {
    while (result = _numWithUnitExp.exec(end)) {
      endValue = result[0];
      chunk = end.substring(index, result.index);
      if (color) {
        color = (color + 1) % 5;
      } else if (chunk.substr(-5) === "rgba(" || chunk.substr(-5) === "hsla(") {
        color = 1;
      }
      if (endValue !== (startValue = startValues[matchIndex++] || "")) {
        startNum = parseFloat(startValue) || 0;
        startUnit = startValue.substr((startNum + "").length);
        endValue.charAt(1) === "=" && (endValue = _parseRelative(startNum, endValue) + startUnit);
        endNum = parseFloat(endValue);
        endUnit = endValue.substr((endNum + "").length);
        index = _numWithUnitExp.lastIndex - endUnit.length;
        if (!endUnit) {
          endUnit = endUnit || _config.units[prop] || startUnit;
          if (index === end.length) {
            end += endUnit;
            pt.e += endUnit;
          }
        }
        if (startUnit !== endUnit) {
          startNum = _convertToUnit(target, prop, startValue, endUnit) || 0;
        }
        pt._pt = {
          _next: pt._pt,
          p: chunk || matchIndex === 1 ? chunk : ",",
          //note: SVG spec allows omission of comma/space when a negative sign is wedged between two numbers, like 2.5-5.3 instead of 2.5,-5.3 but when tweening, the negative value may switch to positive, so we insert the comma just in case.
          s: startNum,
          c: endNum - startNum,
          m: color && color < 4 || prop === "zIndex" ? Math.round : 0
        };
      }
    }
    pt.c = index < end.length ? end.substring(index, end.length) : "";
  } else {
    pt.r = prop === "display" && end === "none" ? _renderNonTweeningValueOnlyAtEnd : _renderNonTweeningValue;
  }
  _relExp.test(end) && (pt.e = 0);
  this._pt = pt;
  return pt;
};
var _keywordToPercent = {
  top: "0%",
  bottom: "100%",
  left: "0%",
  right: "100%",
  center: "50%"
};
var _convertKeywordsToPercentages = function _convertKeywordsToPercentages2(value) {
  var split = value.split(" "), x = split[0], y = split[1] || "50%";
  if (x === "top" || x === "bottom" || y === "left" || y === "right") {
    value = x;
    x = y;
    y = value;
  }
  split[0] = _keywordToPercent[x] || x;
  split[1] = _keywordToPercent[y] || y;
  return split.join(" ");
};
var _renderClearProps = function _renderClearProps2(ratio, data) {
  if (data.tween && data.tween._time === data.tween._dur) {
    var target = data.t, style = target.style, props = data.u, cache = target._gsap, prop, clearTransforms, i;
    if (props === "all" || props === true) {
      style.cssText = "";
      clearTransforms = 1;
    } else {
      props = props.split(",");
      i = props.length;
      while (--i > -1) {
        prop = props[i];
        if (_transformProps[prop]) {
          clearTransforms = 1;
          prop = prop === "transformOrigin" ? _transformOriginProp : _transformProp;
        }
        _removeProperty(target, prop);
      }
    }
    if (clearTransforms) {
      _removeProperty(target, _transformProp);
      if (cache) {
        cache.svg && target.removeAttribute("transform");
        _parseTransform(target, 1);
        cache.uncache = 1;
        _removeIndependentTransforms(style);
      }
    }
  }
};
var _specialProps = {
  clearProps: function clearProps(plugin, target, property, endValue, tween) {
    if (tween.data !== "isFromStart") {
      var pt = plugin._pt = new PropTween(plugin._pt, target, property, 0, 0, _renderClearProps);
      pt.u = endValue;
      pt.pr = -10;
      pt.tween = tween;
      plugin._props.push(property);
      return 1;
    }
  }
  /* className feature (about 0.4kb gzipped).
  , className(plugin, target, property, endValue, tween) {
  	let _renderClassName = (ratio, data) => {
  			data.css.render(ratio, data.css);
  			if (!ratio || ratio === 1) {
  				let inline = data.rmv,
  					target = data.t,
  					p;
  				target.setAttribute("class", ratio ? data.e : data.b);
  				for (p in inline) {
  					_removeProperty(target, p);
  				}
  			}
  		},
  		_getAllStyles = (target) => {
  			let styles = {},
  				computed = getComputedStyle(target),
  				p;
  			for (p in computed) {
  				if (isNaN(p) && p !== "cssText" && p !== "length") {
  					styles[p] = computed[p];
  				}
  			}
  			_setDefaults(styles, _parseTransform(target, 1));
  			return styles;
  		},
  		startClassList = target.getAttribute("class"),
  		style = target.style,
  		cssText = style.cssText,
  		cache = target._gsap,
  		classPT = cache.classPT,
  		inlineToRemoveAtEnd = {},
  		data = {t:target, plugin:plugin, rmv:inlineToRemoveAtEnd, b:startClassList, e:(endValue.charAt(1) !== "=") ? endValue : startClassList.replace(new RegExp("(?:\\s|^)" + endValue.substr(2) + "(?![\\w-])"), "") + ((endValue.charAt(0) === "+") ? " " + endValue.substr(2) : "")},
  		changingVars = {},
  		startVars = _getAllStyles(target),
  		transformRelated = /(transform|perspective)/i,
  		endVars, p;
  	if (classPT) {
  		classPT.r(1, classPT.d);
  		_removeLinkedListItem(classPT.d.plugin, classPT, "_pt");
  	}
  	target.setAttribute("class", data.e);
  	endVars = _getAllStyles(target, true);
  	target.setAttribute("class", startClassList);
  	for (p in endVars) {
  		if (endVars[p] !== startVars[p] && !transformRelated.test(p)) {
  			changingVars[p] = endVars[p];
  			if (!style[p] && style[p] !== "0") {
  				inlineToRemoveAtEnd[p] = 1;
  			}
  		}
  	}
  	cache.classPT = plugin._pt = new PropTween(plugin._pt, target, "className", 0, 0, _renderClassName, data, 0, -11);
  	if (style.cssText !== cssText) { //only apply if things change. Otherwise, in cases like a background-image that's pulled dynamically, it could cause a refresh. See https://gsap.com/forums/topic/20368-possible-gsap-bug-switching-classnames-in-chrome/.
  		style.cssText = cssText; //we recorded cssText before we swapped classes and ran _getAllStyles() because in cases when a className tween is overwritten, we remove all the related tweening properties from that class change (otherwise class-specific stuff can't override properties we've directly set on the target's style object due to specificity).
  	}
  	_parseTransform(target, true); //to clear the caching of transforms
  	data.css = new gsap.plugins.css();
  	data.css.init(target, changingVars, tween);
  	plugin._props.push(...data.css._props);
  	return 1;
  }
  */
};
var _identity2DMatrix = [1, 0, 0, 1, 0, 0];
var _rotationalProperties = {};
var _isNullTransform = function _isNullTransform2(value) {
  return value === "matrix(1, 0, 0, 1, 0, 0)" || value === "none" || !value;
};
var _getComputedTransformMatrixAsArray = function _getComputedTransformMatrixAsArray2(target) {
  var matrixString = _getComputedProperty(target, _transformProp);
  return _isNullTransform(matrixString) ? _identity2DMatrix : matrixString.substr(7).match(_numExp).map(_round);
};
var _getMatrix = function _getMatrix2(target, force2D) {
  var cache = target._gsap || _getCache(target), style = target.style, matrix = _getComputedTransformMatrixAsArray(target), parent, nextSibling, temp, addedToDOM;
  if (cache.svg && target.getAttribute("transform")) {
    temp = target.transform.baseVal.consolidate().matrix;
    matrix = [temp.a, temp.b, temp.c, temp.d, temp.e, temp.f];
    return matrix.join(",") === "1,0,0,1,0,0" ? _identity2DMatrix : matrix;
  } else if (matrix === _identity2DMatrix && !target.offsetParent && target !== _docElement && !cache.svg) {
    temp = style.display;
    style.display = "block";
    parent = target.parentNode;
    if (!parent || !target.offsetParent) {
      addedToDOM = 1;
      nextSibling = target.nextElementSibling;
      _docElement.appendChild(target);
    }
    matrix = _getComputedTransformMatrixAsArray(target);
    temp ? style.display = temp : _removeProperty(target, "display");
    if (addedToDOM) {
      nextSibling ? parent.insertBefore(target, nextSibling) : parent ? parent.appendChild(target) : _docElement.removeChild(target);
    }
  }
  return force2D && matrix.length > 6 ? [matrix[0], matrix[1], matrix[4], matrix[5], matrix[12], matrix[13]] : matrix;
};
var _applySVGOrigin = function _applySVGOrigin2(target, origin, originIsAbsolute, smooth, matrixArray, pluginToAddPropTweensTo) {
  var cache = target._gsap, matrix = matrixArray || _getMatrix(target, true), xOriginOld = cache.xOrigin || 0, yOriginOld = cache.yOrigin || 0, xOffsetOld = cache.xOffset || 0, yOffsetOld = cache.yOffset || 0, a = matrix[0], b = matrix[1], c = matrix[2], d = matrix[3], tx = matrix[4], ty = matrix[5], originSplit = origin.split(" "), xOrigin = parseFloat(originSplit[0]) || 0, yOrigin = parseFloat(originSplit[1]) || 0, bounds, determinant, x, y;
  if (!originIsAbsolute) {
    bounds = _getBBox(target);
    xOrigin = bounds.x + (~originSplit[0].indexOf("%") ? xOrigin / 100 * bounds.width : xOrigin);
    yOrigin = bounds.y + (~(originSplit[1] || originSplit[0]).indexOf("%") ? yOrigin / 100 * bounds.height : yOrigin);
  } else if (matrix !== _identity2DMatrix && (determinant = a * d - b * c)) {
    x = xOrigin * (d / determinant) + yOrigin * (-c / determinant) + (c * ty - d * tx) / determinant;
    y = xOrigin * (-b / determinant) + yOrigin * (a / determinant) - (a * ty - b * tx) / determinant;
    xOrigin = x;
    yOrigin = y;
  }
  if (smooth || smooth !== false && cache.smooth) {
    tx = xOrigin - xOriginOld;
    ty = yOrigin - yOriginOld;
    cache.xOffset = xOffsetOld + (tx * a + ty * c) - tx;
    cache.yOffset = yOffsetOld + (tx * b + ty * d) - ty;
  } else {
    cache.xOffset = cache.yOffset = 0;
  }
  cache.xOrigin = xOrigin;
  cache.yOrigin = yOrigin;
  cache.smooth = !!smooth;
  cache.origin = origin;
  cache.originIsAbsolute = !!originIsAbsolute;
  target.style[_transformOriginProp] = "0px 0px";
  if (pluginToAddPropTweensTo) {
    _addNonTweeningPT(pluginToAddPropTweensTo, cache, "xOrigin", xOriginOld, xOrigin);
    _addNonTweeningPT(pluginToAddPropTweensTo, cache, "yOrigin", yOriginOld, yOrigin);
    _addNonTweeningPT(pluginToAddPropTweensTo, cache, "xOffset", xOffsetOld, cache.xOffset);
    _addNonTweeningPT(pluginToAddPropTweensTo, cache, "yOffset", yOffsetOld, cache.yOffset);
  }
  target.setAttribute("data-svg-origin", xOrigin + " " + yOrigin);
};
var _parseTransform = function _parseTransform2(target, uncache) {
  var cache = target._gsap || new GSCache(target);
  if ("x" in cache && !uncache && !cache.uncache) {
    return cache;
  }
  var style = target.style, invertedScaleX = cache.scaleX < 0, px = "px", deg = "deg", cs = getComputedStyle(target), origin = _getComputedProperty(target, _transformOriginProp) || "0", x, y, z, scaleX, scaleY, rotation, rotationX, rotationY, skewX, skewY, perspective, xOrigin, yOrigin, matrix, angle, cos, sin, a, b, c, d, a12, a22, t1, t2, t3, a13, a23, a33, a42, a43, a32;
  x = y = z = rotation = rotationX = rotationY = skewX = skewY = perspective = 0;
  scaleX = scaleY = 1;
  cache.svg = !!(target.getCTM && _isSVG(target));
  if (cs.translate) {
    if (cs.translate !== "none" || cs.scale !== "none" || cs.rotate !== "none") {
      style[_transformProp] = (cs.translate !== "none" ? "translate3d(" + (cs.translate + " 0 0").split(" ").slice(0, 3).join(", ") + ") " : "") + (cs.rotate !== "none" ? "rotate(" + cs.rotate + ") " : "") + (cs.scale !== "none" ? "scale(" + cs.scale.split(" ").join(",") + ") " : "") + (cs[_transformProp] !== "none" ? cs[_transformProp] : "");
    }
    style.scale = style.rotate = style.translate = "none";
  }
  matrix = _getMatrix(target, cache.svg);
  if (cache.svg) {
    if (cache.uncache) {
      t2 = target.getBBox();
      origin = cache.xOrigin - t2.x + "px " + (cache.yOrigin - t2.y) + "px";
      t1 = "";
    } else {
      t1 = !uncache && target.getAttribute("data-svg-origin");
    }
    _applySVGOrigin(target, t1 || origin, !!t1 || cache.originIsAbsolute, cache.smooth !== false, matrix);
  }
  xOrigin = cache.xOrigin || 0;
  yOrigin = cache.yOrigin || 0;
  if (matrix !== _identity2DMatrix) {
    a = matrix[0];
    b = matrix[1];
    c = matrix[2];
    d = matrix[3];
    x = a12 = matrix[4];
    y = a22 = matrix[5];
    if (matrix.length === 6) {
      scaleX = Math.sqrt(a * a + b * b);
      scaleY = Math.sqrt(d * d + c * c);
      rotation = a || b ? _atan2(b, a) * _RAD2DEG : 0;
      skewX = c || d ? _atan2(c, d) * _RAD2DEG + rotation : 0;
      skewX && (scaleY *= Math.abs(Math.cos(skewX * _DEG2RAD)));
      if (cache.svg) {
        x -= xOrigin - (xOrigin * a + yOrigin * c);
        y -= yOrigin - (xOrigin * b + yOrigin * d);
      }
    } else {
      a32 = matrix[6];
      a42 = matrix[7];
      a13 = matrix[8];
      a23 = matrix[9];
      a33 = matrix[10];
      a43 = matrix[11];
      x = matrix[12];
      y = matrix[13];
      z = matrix[14];
      angle = _atan2(a32, a33);
      rotationX = angle * _RAD2DEG;
      if (angle) {
        cos = Math.cos(-angle);
        sin = Math.sin(-angle);
        t1 = a12 * cos + a13 * sin;
        t2 = a22 * cos + a23 * sin;
        t3 = a32 * cos + a33 * sin;
        a13 = a12 * -sin + a13 * cos;
        a23 = a22 * -sin + a23 * cos;
        a33 = a32 * -sin + a33 * cos;
        a43 = a42 * -sin + a43 * cos;
        a12 = t1;
        a22 = t2;
        a32 = t3;
      }
      angle = _atan2(-c, a33);
      rotationY = angle * _RAD2DEG;
      if (angle) {
        cos = Math.cos(-angle);
        sin = Math.sin(-angle);
        t1 = a * cos - a13 * sin;
        t2 = b * cos - a23 * sin;
        t3 = c * cos - a33 * sin;
        a43 = d * sin + a43 * cos;
        a = t1;
        b = t2;
        c = t3;
      }
      angle = _atan2(b, a);
      rotation = angle * _RAD2DEG;
      if (angle) {
        cos = Math.cos(angle);
        sin = Math.sin(angle);
        t1 = a * cos + b * sin;
        t2 = a12 * cos + a22 * sin;
        b = b * cos - a * sin;
        a22 = a22 * cos - a12 * sin;
        a = t1;
        a12 = t2;
      }
      if (rotationX && Math.abs(rotationX) + Math.abs(rotation) > 359.9) {
        rotationX = rotation = 0;
        rotationY = 180 - rotationY;
      }
      scaleX = _round(Math.sqrt(a * a + b * b + c * c));
      scaleY = _round(Math.sqrt(a22 * a22 + a32 * a32));
      angle = _atan2(a12, a22);
      skewX = Math.abs(angle) > 2e-4 ? angle * _RAD2DEG : 0;
      perspective = a43 ? 1 / (a43 < 0 ? -a43 : a43) : 0;
    }
    if (cache.svg) {
      t1 = target.getAttribute("transform");
      cache.forceCSS = target.setAttribute("transform", "") || !_isNullTransform(_getComputedProperty(target, _transformProp));
      t1 && target.setAttribute("transform", t1);
    }
  }
  if (Math.abs(skewX) > 90 && Math.abs(skewX) < 270) {
    if (invertedScaleX) {
      scaleX *= -1;
      skewX += rotation <= 0 ? 180 : -180;
      rotation += rotation <= 0 ? 180 : -180;
    } else {
      scaleY *= -1;
      skewX += skewX <= 0 ? 180 : -180;
    }
  }
  uncache = uncache || cache.uncache;
  cache.x = x - ((cache.xPercent = x && (!uncache && cache.xPercent || (Math.round(target.offsetWidth / 2) === Math.round(-x) ? -50 : 0))) ? target.offsetWidth * cache.xPercent / 100 : 0) + px;
  cache.y = y - ((cache.yPercent = y && (!uncache && cache.yPercent || (Math.round(target.offsetHeight / 2) === Math.round(-y) ? -50 : 0))) ? target.offsetHeight * cache.yPercent / 100 : 0) + px;
  cache.z = z + px;
  cache.scaleX = _round(scaleX);
  cache.scaleY = _round(scaleY);
  cache.rotation = _round(rotation) + deg;
  cache.rotationX = _round(rotationX) + deg;
  cache.rotationY = _round(rotationY) + deg;
  cache.skewX = skewX + deg;
  cache.skewY = skewY + deg;
  cache.transformPerspective = perspective + px;
  if (cache.zOrigin = parseFloat(origin.split(" ")[2]) || !uncache && cache.zOrigin || 0) {
    style[_transformOriginProp] = _firstTwoOnly(origin);
  }
  cache.xOffset = cache.yOffset = 0;
  cache.force3D = _config.force3D;
  cache.renderTransform = cache.svg ? _renderSVGTransforms : _supports3D ? _renderCSSTransforms : _renderNon3DTransforms;
  cache.uncache = 0;
  return cache;
};
var _firstTwoOnly = function _firstTwoOnly2(value) {
  return (value = value.split(" "))[0] + " " + value[1];
};
var _addPxTranslate = function _addPxTranslate2(target, start, value) {
  var unit = getUnit(start);
  return _round(parseFloat(start) + parseFloat(_convertToUnit(target, "x", value + "px", unit))) + unit;
};
var _renderNon3DTransforms = function _renderNon3DTransforms2(ratio, cache) {
  cache.z = "0px";
  cache.rotationY = cache.rotationX = "0deg";
  cache.force3D = 0;
  _renderCSSTransforms(ratio, cache);
};
var _zeroDeg = "0deg";
var _zeroPx = "0px";
var _endParenthesis = ") ";
var _renderCSSTransforms = function _renderCSSTransforms2(ratio, cache) {
  var _ref = cache || this, xPercent = _ref.xPercent, yPercent = _ref.yPercent, x = _ref.x, y = _ref.y, z = _ref.z, rotation = _ref.rotation, rotationY = _ref.rotationY, rotationX = _ref.rotationX, skewX = _ref.skewX, skewY = _ref.skewY, scaleX = _ref.scaleX, scaleY = _ref.scaleY, transformPerspective = _ref.transformPerspective, force3D = _ref.force3D, target = _ref.target, zOrigin = _ref.zOrigin, transforms = "", use3D = force3D === "auto" && ratio && ratio !== 1 || force3D === true;
  if (zOrigin && (rotationX !== _zeroDeg || rotationY !== _zeroDeg)) {
    var angle = parseFloat(rotationY) * _DEG2RAD, a13 = Math.sin(angle), a33 = Math.cos(angle), cos;
    angle = parseFloat(rotationX) * _DEG2RAD;
    cos = Math.cos(angle);
    x = _addPxTranslate(target, x, a13 * cos * -zOrigin);
    y = _addPxTranslate(target, y, -Math.sin(angle) * -zOrigin);
    z = _addPxTranslate(target, z, a33 * cos * -zOrigin + zOrigin);
  }
  if (transformPerspective !== _zeroPx) {
    transforms += "perspective(" + transformPerspective + _endParenthesis;
  }
  if (xPercent || yPercent) {
    transforms += "translate(" + xPercent + "%, " + yPercent + "%) ";
  }
  if (use3D || x !== _zeroPx || y !== _zeroPx || z !== _zeroPx) {
    transforms += z !== _zeroPx || use3D ? "translate3d(" + x + ", " + y + ", " + z + ") " : "translate(" + x + ", " + y + _endParenthesis;
  }
  if (rotation !== _zeroDeg) {
    transforms += "rotate(" + rotation + _endParenthesis;
  }
  if (rotationY !== _zeroDeg) {
    transforms += "rotateY(" + rotationY + _endParenthesis;
  }
  if (rotationX !== _zeroDeg) {
    transforms += "rotateX(" + rotationX + _endParenthesis;
  }
  if (skewX !== _zeroDeg || skewY !== _zeroDeg) {
    transforms += "skew(" + skewX + ", " + skewY + _endParenthesis;
  }
  if (scaleX !== 1 || scaleY !== 1) {
    transforms += "scale(" + scaleX + ", " + scaleY + _endParenthesis;
  }
  target.style[_transformProp] = transforms || "translate(0, 0)";
};
var _renderSVGTransforms = function _renderSVGTransforms2(ratio, cache) {
  var _ref2 = cache || this, xPercent = _ref2.xPercent, yPercent = _ref2.yPercent, x = _ref2.x, y = _ref2.y, rotation = _ref2.rotation, skewX = _ref2.skewX, skewY = _ref2.skewY, scaleX = _ref2.scaleX, scaleY = _ref2.scaleY, target = _ref2.target, xOrigin = _ref2.xOrigin, yOrigin = _ref2.yOrigin, xOffset = _ref2.xOffset, yOffset = _ref2.yOffset, forceCSS = _ref2.forceCSS, tx = parseFloat(x), ty = parseFloat(y), a11, a21, a12, a22, temp;
  rotation = parseFloat(rotation);
  skewX = parseFloat(skewX);
  skewY = parseFloat(skewY);
  if (skewY) {
    skewY = parseFloat(skewY);
    skewX += skewY;
    rotation += skewY;
  }
  if (rotation || skewX) {
    rotation *= _DEG2RAD;
    skewX *= _DEG2RAD;
    a11 = Math.cos(rotation) * scaleX;
    a21 = Math.sin(rotation) * scaleX;
    a12 = Math.sin(rotation - skewX) * -scaleY;
    a22 = Math.cos(rotation - skewX) * scaleY;
    if (skewX) {
      skewY *= _DEG2RAD;
      temp = Math.tan(skewX - skewY);
      temp = Math.sqrt(1 + temp * temp);
      a12 *= temp;
      a22 *= temp;
      if (skewY) {
        temp = Math.tan(skewY);
        temp = Math.sqrt(1 + temp * temp);
        a11 *= temp;
        a21 *= temp;
      }
    }
    a11 = _round(a11);
    a21 = _round(a21);
    a12 = _round(a12);
    a22 = _round(a22);
  } else {
    a11 = scaleX;
    a22 = scaleY;
    a21 = a12 = 0;
  }
  if (tx && !~(x + "").indexOf("px") || ty && !~(y + "").indexOf("px")) {
    tx = _convertToUnit(target, "x", x, "px");
    ty = _convertToUnit(target, "y", y, "px");
  }
  if (xOrigin || yOrigin || xOffset || yOffset) {
    tx = _round(tx + xOrigin - (xOrigin * a11 + yOrigin * a12) + xOffset);
    ty = _round(ty + yOrigin - (xOrigin * a21 + yOrigin * a22) + yOffset);
  }
  if (xPercent || yPercent) {
    temp = target.getBBox();
    tx = _round(tx + xPercent / 100 * temp.width);
    ty = _round(ty + yPercent / 100 * temp.height);
  }
  temp = "matrix(" + a11 + "," + a21 + "," + a12 + "," + a22 + "," + tx + "," + ty + ")";
  target.setAttribute("transform", temp);
  forceCSS && (target.style[_transformProp] = temp);
};
var _addRotationalPropTween = function _addRotationalPropTween2(plugin, target, property, startNum, endValue) {
  var cap = 360, isString = _isString(endValue), endNum = parseFloat(endValue) * (isString && ~endValue.indexOf("rad") ? _RAD2DEG : 1), change = endNum - startNum, finalValue = startNum + change + "deg", direction, pt;
  if (isString) {
    direction = endValue.split("_")[1];
    if (direction === "short") {
      change %= cap;
      if (change !== change % (cap / 2)) {
        change += change < 0 ? cap : -cap;
      }
    }
    if (direction === "cw" && change < 0) {
      change = (change + cap * _bigNum2) % cap - ~~(change / cap) * cap;
    } else if (direction === "ccw" && change > 0) {
      change = (change - cap * _bigNum2) % cap - ~~(change / cap) * cap;
    }
  }
  plugin._pt = pt = new PropTween(plugin._pt, target, property, startNum, change, _renderPropWithEnd);
  pt.e = finalValue;
  pt.u = "deg";
  plugin._props.push(property);
  return pt;
};
var _assign = function _assign2(target, source) {
  for (var p in source) {
    target[p] = source[p];
  }
  return target;
};
var _addRawTransformPTs = function _addRawTransformPTs2(plugin, transforms, target) {
  var startCache = _assign({}, target._gsap), exclude = "perspective,force3D,transformOrigin,svgOrigin", style = target.style, endCache, p, startValue, endValue, startNum, endNum, startUnit, endUnit;
  if (startCache.svg) {
    startValue = target.getAttribute("transform");
    target.setAttribute("transform", "");
    style[_transformProp] = transforms;
    endCache = _parseTransform(target, 1);
    _removeProperty(target, _transformProp);
    target.setAttribute("transform", startValue);
  } else {
    startValue = getComputedStyle(target)[_transformProp];
    style[_transformProp] = transforms;
    endCache = _parseTransform(target, 1);
    style[_transformProp] = startValue;
  }
  for (p in _transformProps) {
    startValue = startCache[p];
    endValue = endCache[p];
    if (startValue !== endValue && exclude.indexOf(p) < 0) {
      startUnit = getUnit(startValue);
      endUnit = getUnit(endValue);
      startNum = startUnit !== endUnit ? _convertToUnit(target, p, startValue, endUnit) : parseFloat(startValue);
      endNum = parseFloat(endValue);
      plugin._pt = new PropTween(plugin._pt, endCache, p, startNum, endNum - startNum, _renderCSSProp);
      plugin._pt.u = endUnit || 0;
      plugin._props.push(p);
    }
  }
  _assign(endCache, startCache);
};
_forEachName("padding,margin,Width,Radius", function(name, index) {
  var t = "Top", r = "Right", b = "Bottom", l = "Left", props = (index < 3 ? [t, r, b, l] : [t + l, t + r, b + r, b + l]).map(function(side) {
    return index < 2 ? name + side : "border" + side + name;
  });
  _specialProps[index > 1 ? "border" + name : name] = function(plugin, target, property, endValue, tween) {
    var a, vars;
    if (arguments.length < 4) {
      a = props.map(function(prop) {
        return _get(plugin, prop, property);
      });
      vars = a.join(" ");
      return vars.split(a[0]).length === 5 ? a[0] : vars;
    }
    a = (endValue + "").split(" ");
    vars = {};
    props.forEach(function(prop, i) {
      return vars[prop] = a[i] = a[i] || a[(i - 1) / 2 | 0];
    });
    plugin.init(target, vars, tween);
  };
});
var CSSPlugin = {
  name: "css",
  register: _initCore,
  targetTest: function targetTest(target) {
    return target.style && target.nodeType;
  },
  init: function init3(target, vars, tween, index, targets) {
    var props = this._props, style = target.style, startAt = tween.vars.startAt, startValue, endValue, endNum, startNum, type, specialProp, p, startUnit, endUnit, relative, isTransformRelated, transformPropTween, cache, smooth, hasPriority, inlineProps;
    _pluginInitted || _initCore();
    this.styles = this.styles || _getStyleSaver(target);
    inlineProps = this.styles.props;
    this.tween = tween;
    for (p in vars) {
      if (p === "autoRound") {
        continue;
      }
      endValue = vars[p];
      if (_plugins[p] && _checkPlugin(p, vars, tween, index, target, targets)) {
        continue;
      }
      type = typeof endValue;
      specialProp = _specialProps[p];
      if (type === "function") {
        endValue = endValue.call(tween, index, target, targets);
        type = typeof endValue;
      }
      if (type === "string" && ~endValue.indexOf("random(")) {
        endValue = _replaceRandom(endValue);
      }
      if (specialProp) {
        specialProp(this, target, p, endValue, tween) && (hasPriority = 1);
      } else if (p.substr(0, 2) === "--") {
        startValue = (getComputedStyle(target).getPropertyValue(p) + "").trim();
        endValue += "";
        _colorExp.lastIndex = 0;
        if (!_colorExp.test(startValue)) {
          startUnit = getUnit(startValue);
          endUnit = getUnit(endValue);
        }
        endUnit ? startUnit !== endUnit && (startValue = _convertToUnit(target, p, startValue, endUnit) + endUnit) : startUnit && (endValue += startUnit);
        this.add(style, "setProperty", startValue, endValue, index, targets, 0, 0, p);
        props.push(p);
        inlineProps.push(p, 0, style[p]);
      } else if (type !== "undefined") {
        if (startAt && p in startAt) {
          startValue = typeof startAt[p] === "function" ? startAt[p].call(tween, index, target, targets) : startAt[p];
          _isString(startValue) && ~startValue.indexOf("random(") && (startValue = _replaceRandom(startValue));
          getUnit(startValue + "") || startValue === "auto" || (startValue += _config.units[p] || getUnit(_get(target, p)) || "");
          (startValue + "").charAt(1) === "=" && (startValue = _get(target, p));
        } else {
          startValue = _get(target, p);
        }
        startNum = parseFloat(startValue);
        relative = type === "string" && endValue.charAt(1) === "=" && endValue.substr(0, 2);
        relative && (endValue = endValue.substr(2));
        endNum = parseFloat(endValue);
        if (p in _propertyAliases) {
          if (p === "autoAlpha") {
            if (startNum === 1 && _get(target, "visibility") === "hidden" && endNum) {
              startNum = 0;
            }
            inlineProps.push("visibility", 0, style.visibility);
            _addNonTweeningPT(this, style, "visibility", startNum ? "inherit" : "hidden", endNum ? "inherit" : "hidden", !endNum);
          }
          if (p !== "scale" && p !== "transform") {
            p = _propertyAliases[p];
            ~p.indexOf(",") && (p = p.split(",")[0]);
          }
        }
        isTransformRelated = p in _transformProps;
        if (isTransformRelated) {
          this.styles.save(p);
          if (!transformPropTween) {
            cache = target._gsap;
            cache.renderTransform && !vars.parseTransform || _parseTransform(target, vars.parseTransform);
            smooth = vars.smoothOrigin !== false && cache.smooth;
            transformPropTween = this._pt = new PropTween(this._pt, style, _transformProp, 0, 1, cache.renderTransform, cache, 0, -1);
            transformPropTween.dep = 1;
          }
          if (p === "scale") {
            this._pt = new PropTween(this._pt, cache, "scaleY", cache.scaleY, (relative ? _parseRelative(cache.scaleY, relative + endNum) : endNum) - cache.scaleY || 0, _renderCSSProp);
            this._pt.u = 0;
            props.push("scaleY", p);
            p += "X";
          } else if (p === "transformOrigin") {
            inlineProps.push(_transformOriginProp, 0, style[_transformOriginProp]);
            endValue = _convertKeywordsToPercentages(endValue);
            if (cache.svg) {
              _applySVGOrigin(target, endValue, 0, smooth, 0, this);
            } else {
              endUnit = parseFloat(endValue.split(" ")[2]) || 0;
              endUnit !== cache.zOrigin && _addNonTweeningPT(this, cache, "zOrigin", cache.zOrigin, endUnit);
              _addNonTweeningPT(this, style, p, _firstTwoOnly(startValue), _firstTwoOnly(endValue));
            }
            continue;
          } else if (p === "svgOrigin") {
            _applySVGOrigin(target, endValue, 1, smooth, 0, this);
            continue;
          } else if (p in _rotationalProperties) {
            _addRotationalPropTween(this, cache, p, startNum, relative ? _parseRelative(startNum, relative + endValue) : endValue);
            continue;
          } else if (p === "smoothOrigin") {
            _addNonTweeningPT(this, cache, "smooth", cache.smooth, endValue);
            continue;
          } else if (p === "force3D") {
            cache[p] = endValue;
            continue;
          } else if (p === "transform") {
            _addRawTransformPTs(this, endValue, target);
            continue;
          }
        } else if (!(p in style)) {
          p = _checkPropPrefix(p) || p;
        }
        if (isTransformRelated || (endNum || endNum === 0) && (startNum || startNum === 0) && !_complexExp.test(endValue) && p in style) {
          startUnit = (startValue + "").substr((startNum + "").length);
          endNum || (endNum = 0);
          endUnit = getUnit(endValue) || (p in _config.units ? _config.units[p] : startUnit);
          startUnit !== endUnit && (startNum = _convertToUnit(target, p, startValue, endUnit));
          this._pt = new PropTween(this._pt, isTransformRelated ? cache : style, p, startNum, (relative ? _parseRelative(startNum, relative + endNum) : endNum) - startNum, !isTransformRelated && (endUnit === "px" || p === "zIndex") && vars.autoRound !== false ? _renderRoundedCSSProp : _renderCSSProp);
          this._pt.u = endUnit || 0;
          if (startUnit !== endUnit && endUnit !== "%") {
            this._pt.b = startValue;
            this._pt.r = _renderCSSPropWithBeginning;
          }
        } else if (!(p in style)) {
          if (p in target) {
            this.add(target, p, startValue || target[p], relative ? relative + endValue : endValue, index, targets);
          } else if (p !== "parseTransform") {
            _missingPlugin(p, endValue);
            continue;
          }
        } else {
          _tweenComplexCSSString.call(this, target, p, startValue, relative ? relative + endValue : endValue);
        }
        isTransformRelated || (p in style ? inlineProps.push(p, 0, style[p]) : inlineProps.push(p, 1, startValue || target[p]));
        props.push(p);
      }
    }
    hasPriority && _sortPropTweensByPriority(this);
  },
  render: function render2(ratio, data) {
    if (data.tween._time || !_reverting2()) {
      var pt = data._pt;
      while (pt) {
        pt.r(ratio, pt.d);
        pt = pt._next;
      }
    } else {
      data.styles.revert();
    }
  },
  get: _get,
  aliases: _propertyAliases,
  getSetter: function getSetter(target, property, plugin) {
    var p = _propertyAliases[property];
    p && p.indexOf(",") < 0 && (property = p);
    return property in _transformProps && property !== _transformOriginProp && (target._gsap.x || _get(target, "x")) ? plugin && _recentSetterPlugin === plugin ? property === "scale" ? _setterScale : _setterTransform : (_recentSetterPlugin = plugin || {}) && (property === "scale" ? _setterScaleWithRender : _setterTransformWithRender) : target.style && !_isUndefined(target.style[property]) ? _setterCSSStyle : ~property.indexOf("-") ? _setterCSSProp : _getSetter(target, property);
  },
  core: {
    _removeProperty,
    _getMatrix
  }
};
gsap.utils.checkPrefix = _checkPropPrefix;
gsap.core.getStyleSaver = _getStyleSaver;
(function(positionAndScale, rotation, others, aliases) {
  var all = _forEachName(positionAndScale + "," + rotation + "," + others, function(name) {
    _transformProps[name] = 1;
  });
  _forEachName(rotation, function(name) {
    _config.units[name] = "deg";
    _rotationalProperties[name] = 1;
  });
  _propertyAliases[all[13]] = positionAndScale + "," + rotation;
  _forEachName(aliases, function(name) {
    var split = name.split(":");
    _propertyAliases[split[1]] = all[split[0]];
  });
})("x,y,z,scale,scaleX,scaleY,xPercent,yPercent", "rotation,rotationX,rotationY,skewX,skewY", "transform,transformOrigin,svgOrigin,force3D,smoothOrigin,transformPerspective", "0:translateX,1:translateY,2:translateZ,8:rotate,8:rotationZ,8:rotateZ,9:rotateX,10:rotateY");
_forEachName("x,y,z,top,right,bottom,left,width,height,fontSize,padding,margin,perspective", function(name) {
  _config.units[name] = "px";
});
gsap.registerPlugin(CSSPlugin);

// node_modules/gsap/index.js
var gsapWithCSS = gsap.registerPlugin(CSSPlugin) || gsap;
var TweenMaxWithCSS = gsapWithCSS.core.Tween;

// src/glb-cards.js
var loader = new GLTFLoader();
var dracoLoader = new DRACOLoader();
dracoLoader.setDecoderPath("https://www.gstatic.com/draco/v1/decoders/");
loader.setDRACOLoader(dracoLoader);
function createScene(containerSelector, glbPath) {
  return new Promise((resolve, reject) => {
    const container = document.querySelector(containerSelector);
    const scene = new Scene();
    scene.background = new Color(2105376);
    const camera = new PerspectiveCamera(
      45,
      container.clientWidth / container.clientHeight,
      0.1,
      100
    );
    camera.position.set(2, 0, 0);
    const renderer = new WebGLRenderer({ antialias: true });
    renderer.setSize(container.clientWidth, container.clientHeight);
    renderer.domElement.style.visibility = "hidden";
    container.appendChild(renderer.domElement);
    const light = new DirectionalLight(16777215, 4);
    light.position.set(30, -10, 20);
    scene.add(light);
    const ambientLight = new AmbientLight(4210752);
    scene.add(ambientLight);
    const controls = new OrbitControls(camera, renderer.domElement);
    controls.enableZoom = false;
    controls.enablePan = false;
    controls.minPolarAngle = Math.PI / 2;
    controls.maxPolarAngle = Math.PI / 2;
    controls.enableDamping = true;
    loader.load(
      glbPath,
      (gltf) => {
        scene.add(gltf.scene);
        renderer.domElement.style.visibility = "visible";
        resolve();
      },
      (xhr) => {
      },
      (error) => {
        console.error(`Error loading ${glbPath}`, error);
        reject(error);
      }
    );
    window.addEventListener("resize", () => {
      camera.aspect = container.clientWidth / container.clientHeight;
      camera.updateProjectionMatrix();
      renderer.setSize(container.clientWidth, container.clientHeight);
    });
    function animate() {
      requestAnimationFrame(animate);
      controls.update();
      renderer.render(scene, camera);
    }
    animate();
  });
}
Promise.all([
  createScene(".astro", "https://3dlive.netlify.app/astro-com-1.glb"),
  createScene(".astro2", "https://3dlive.netlify.app/astro-com-2.glb"),
  createScene(".astro3", "https://3dlive.netlify.app/astro-com-3.glb")
]).then(() => {
  gsapWithCSS.timeline().to("[text-loading]", { opacity: 1, delay: 0.3, y: -20, duration: 1, ease: "power2.out" }).to("[text-loading]", { opacity: 0, y: 0, duration: 1, ease: "power2.in" }).to(".courtain", { height: 0, stagger: 0.5, duration: 1, ease: "power2.inOut" }).to(".loading-wrapper", { display: "none", duration: 0 });
}).catch((err) => {
  console.error("Error al cargar alg\xFAn modelo:", err);
});
/*! Bundled license information:

three/build/three.core.js:
  (**
   * @license
   * Copyright 2010-2024 Three.js Authors
   * SPDX-License-Identifier: MIT
   *)

three/build/three.module.js:
  (**
   * @license
   * Copyright 2010-2024 Three.js Authors
   * SPDX-License-Identifier: MIT
   *)

gsap/gsap-core.js:
  (*!
   * GSAP 3.12.5
   * https://gsap.com
   *
   * @license Copyright 2008-2024, GreenSock. All rights reserved.
   * Subject to the terms at https://gsap.com/standard-license or for
   * Club GSAP members, the agreement issued with that membership.
   * @author: Jack Doyle, jack@greensock.com
  *)

gsap/CSSPlugin.js:
  (*!
   * CSSPlugin 3.12.5
   * https://gsap.com
   *
   * Copyright 2008-2024, GreenSock. All rights reserved.
   * Subject to the terms at https://gsap.com/standard-license or for
   * Club GSAP members, the agreement issued with that membership.
   * @author: Jack Doyle, jack@greensock.com
  *)
*/