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@CodeMyUI
Created Jul 1, 2021
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Parallax Photo Carousel
<div class="stage">
<div class="container">
<div class="ring">
<div class="img"></div>
<div class="img"></div>
<div class="img"></div>
<div class="img"></div>
<div class="img"></div>
<div class="img"></div>
<div class="img"></div>
<div class="img"></div>
<div class="img"></div>
<div class="img"></div>
</div>
</div>
</div>
let xPos = 0;
gsap.timeline()
.set('.ring', { rotationY:180, cursor:'grab' }) //set initial rotationY so the parallax jump happens off screen
.set('.img', { // apply transform rotations to each image
rotateY: (i)=> i*-36,
transformOrigin: '50% 50% 500px',
z: -500,
backgroundImage:(i)=>'url(https://picsum.photos/id/'+(i+32)+'/600/400/)',
backgroundPosition:(i)=>getBgPos(i),
backfaceVisibility:'hidden'
})
.from('.img', {
duration:1.5,
y:200,
opacity:0,
stagger:0.1,
ease:'expo'
})
.add(()=>{
$('.img').on('mouseenter', (e)=>{
let current = e.currentTarget;
gsap.to('.img', {opacity:(i,t)=>(t==current)? 1:0.5, ease:'power3'})
})
$('.img').on('mouseleave', (e)=>{
gsap.to('.img', {opacity:1, ease:'power2.inOut'})
})
}, '-=0.5')
$(window).on('mousedown touchstart', dragStart);
$(window).on('mouseup touchend', dragEnd);
function dragStart(e){
if (e.touches) e.clientX = e.touches[0].clientX;
xPos = Math.round(e.clientX);
gsap.set('.ring', {cursor:'grabbing'})
$(window).on('mousemove touchmove', drag);
}
function drag(e){
if (e.touches) e.clientX = e.touches[0].clientX;
gsap.to('.ring', {
rotationY: '-=' +( (Math.round(e.clientX)-xPos)%360 ),
onUpdate:()=>{ gsap.set('.img', { backgroundPosition:(i)=>getBgPos(i) }) }
});
xPos = Math.round(e.clientX);
}
function dragEnd(e){
$(window).off('mousemove touchmove', drag);
gsap.set('.ring', {cursor:'grab'});
}
function getBgPos(i){ //returns the background-position string to create parallax movement in each image
return ( 100-gsap.utils.wrap(0,360,gsap.getProperty('.ring', 'rotationY')-180-i*36)/360*500 )+'px 0px';
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.6.1/gsap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/zepto/1.2.0/zepto.min.js"></script>
html, body, .stage, .ring, .img {
width:100%;
height: 100%;
transform-style: preserve-3d;
user-select:none;
}
html, body, .stage {
overflow:hidden;
background:#000;
}
div, svg {
position: absolute;
}
.container {
perspective: 2000px;
width: 300px;
height: 400px;
left:50%;
top:50%;
transform:translate(-50%,-50%);
}
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