[
  {
    "id": "codrops-466226133112-article-0",
    "source": "design-engineering/state-management/patterns/derived-state.md",
    "anchor": "state-model-and-ownership",
    "sourceSha256": "22192b2fbab970a71ec0237221dc2d35c578e59723bc0032c2347f8ef595cd6c",
    "title": "18 / Texture fitting & crop anchors · fitTexture",
    "principle": "UV scale and offset are deterministic projections of image ratio, plane ratio, fit mode and anchor.",
    "application": "The CPU calculates image and plane aspect-ratio fitting only when its dimension inputs change. A simple texture sampler consumes the derived UV scale and anchor offset. Cover and contain share one fit calculation with zero-size guards; a collapse animation updates only the changing plane dimension. This binding describes the authored study and does not verify the original project.",
    "code": [
      {
        "file": "vendor/codrops-article-studies/records/codrops-466226133112/script.js",
        "symbol": "fitTexture",
        "explanation": "The named local function implements this mechanism in the downloadable standalone page; its source hash is listed in codeFiles."
      }
    ],
    "checks": [
      {
        "id": "codrops-466226133112-fitTexture",
        "action": "Compare portrait image 0.3 in plane 3 and landscape image 3 in plane 0.3; switch cover and contain.",
        "expected": "The circles stay round, cover crops while contain shows its whole image, and the scale values remain finite."
      }
    ],
    "runtime_verified": false
  },
  {
    "id": "codrops-466226133112-article-1",
    "source": "motion/rendering-and-performance.md",
    "anchor": "a-diagnostic-sequence",
    "sourceSha256": "1523fdeaa290fa064c4db17d36040de3f35ad39bb18a37517ceb5995f97d1dfd",
    "title": "18 / Texture fitting & crop anchors · renderFit",
    "principle": "The fit counter exposes recalculation on dimension or anchor changes without asserting a performance speedup.",
    "application": "The CPU calculates image and plane aspect-ratio fitting only when its dimension inputs change. A simple texture sampler consumes the derived UV scale and anchor offset. Cover and contain share one fit calculation with zero-size guards; a collapse animation updates only the changing plane dimension. This binding describes the authored study and does not verify the original project.",
    "code": [
      {
        "file": "vendor/codrops-article-studies/records/codrops-466226133112/script.js",
        "symbol": "renderFit",
        "explanation": "The named local function implements this mechanism in the downloadable standalone page; its source hash is listed in codeFiles."
      }
    ],
    "checks": [
      {
        "id": "codrops-466226133112-renderFit",
        "action": "Set Plane openness to 0, then 100, and change the anchor.",
        "expected": "The zero-width case is guarded, reopening restores the plane, and fit inputs are recomputed without a shader arithmetic branch per pixel."
      }
    ],
    "runtime_verified": false
  },
  {
    "id": "codrops-466226133112-article-2",
    "source": "motion/accessible-motion.md",
    "anchor": "preference-changes-during-work",
    "sourceSha256": "db0ad692d5bb3103a3cbe13ec08dbe5cf12552aed7ecf2c93b1d7cc0b8a34b8b",
    "title": "18 / Texture fitting & crop anchors · applyMotionPreference",
    "principle": "One effective preference owns CSS and script playback. The initial view is stationary, and manual controls retain the study values.",
    "application": "The CPU calculates image and plane aspect-ratio fitting only when its dimension inputs change. A simple texture sampler consumes the derived UV scale and anchor offset. Cover and contain share one fit calculation with zero-size guards; a collapse animation updates only the changing plane dimension. This binding describes the authored study and does not verify the original project.",
    "code": [
      {
        "file": "vendor/codrops-article-studies/records/codrops-466226133112/script.js",
        "symbol": "applyMotionPreference",
        "explanation": "The named local function implements this mechanism in the downloadable standalone page; its source hash is listed in codeFiles."
      }
    ],
    "checks": [
      {
        "id": "codrops-466226133112-applyMotionPreference",
        "action": "Enable Static view during playback, then adjust the visible native controls.",
        "expected": "Playback stops, its button is disabled while the preference applies, and the current values remain inspectable without continuous motion."
      }
    ],
    "runtime_verified": false
  }
]