// https://greensock.com/docs/v3/Plugins/ScrollTrigger/static.batch()

ScrollTrigger.batch(".image", {
 // interval: 0.1, // time window (in seconds) for batching to occur. 
 // batchMax: 3, // maximum batch size (targets)
 onEnter: batch => gsap.to(batch, {autoAlpha: 1, stagger: 0.2, duration: 1, ease: "sine.out"}),
 // also onLeave, onEnterBack, and onLeaveBack
 // also most normal ScrollTrigger values like start, end, etc.
});