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beseidel/index.html

Created October 26, 2019 21:58
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WebGL Distortion Slider
Raw
index.html
<body class="loading">
<!-- add karla font -->
<header>
<div class="inner">
<div class="logo"><img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/123024/wwf-logo.png"></div>
<div class="burger"></div>
<nav>
<a class="active" href="#">Species</a>
<a href="#">About Us</a>
<a href="#">Our Work</a>
<a href="#">Get Involved</a>
</nav>
<a href="#" class="donate-link">Donate</a>
</div>
</header>
<main>
<div id="slider">
<div class="slider-inner">
<div id="slider-content">
<div class="meta">Species</div>
<h2 id="slide-title">Amur <br>Leopard</h2>
<span data-slide-title="0">Amur <br>Leopard</span>
<span data-slide-title="1">Asiatic <br>Lion</span>
<span data-slide-title="2">Siberian <br>Tiger</span>
<span data-slide-title="3">Brown <br>Bear</span>
<div class="meta">Status</div>
<div id="slide-status">Critically Endangered</div>
<span data-slide-status="0">Critically Endangered</span>
<span data-slide-status="1">Endangered</span>
<span data-slide-status="2">Endangered</span>
<span data-slide-status="3">Least Concern</span>
</div>
</div>
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/123024/leopard2.jpg" />
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/123024/lion2.jpg" />
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/123024/tiger2.jpg" />
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/123024/bear2.jpg" />
<div id="pagination">
<button class="active" data-slide="0"></button>
<button data-slide="1"></button>
<button data-slide="2"></button>
<button data-slide="3"></button>
</div>
</div>
</main>
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-40525870-5"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-40525870-5');
</script>
</body>
Raw
script.babel
const displacementSlider = function(opts) {
let vertex = `
varying vec2 vUv;
void main() {
vUv = uv;
gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
}
`;
let fragment = `
varying vec2 vUv;
uniform sampler2D currentImage;
uniform sampler2D nextImage;
uniform float dispFactor;
void main() {
vec2 uv = vUv;
vec4 _currentImage;
vec4 _nextImage;
float intensity = 0.3;
vec4 orig1 = texture2D(currentImage, uv);
vec4 orig2 = texture2D(nextImage, uv);
_currentImage = texture2D(currentImage, vec2(uv.x, uv.y + dispFactor * (orig2 * intensity)));
_nextImage = texture2D(nextImage, vec2(uv.x, uv.y + (1.0 - dispFactor) * (orig1 * intensity)));
vec4 finalTexture = mix(_currentImage, _nextImage, dispFactor);
gl_FragColor = finalTexture;
}
`;
let images = opts.images, image, sliderImages = [];;
let canvasWidth = images[0].clientWidth;
let canvasHeight = images[0].clientHeight;
let parent = opts.parent;
let renderWidth = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
let renderHeight = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
let renderW, renderH;
if( renderWidth > canvasWidth ) {
renderW = renderWidth;
} else {
renderW = canvasWidth;
}
renderH = canvasHeight;
let renderer = new THREE.WebGLRenderer({
antialias: false,
});
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setClearColor( 0x23272A, 1.0 );
renderer.setSize( renderW, renderH );
parent.appendChild( renderer.domElement );
let loader = new THREE.TextureLoader();
   loader.crossOrigin = "anonymous";
images.forEach( ( img ) => {
image = loader.load( img.getAttribute( 'src' ) + '?v=' + Date.now() );
image.magFilter = image.minFilter = THREE.LinearFilter;
image.anisotropy = renderer.capabilities.getMaxAnisotropy();
sliderImages.push( image );
});
let scene = new THREE.Scene();
scene.background = new THREE.Color( 0x23272A );
let camera = new THREE.OrthographicCamera(
renderWidth / -2,
renderWidth / 2,
renderHeight / 2,
renderHeight / -2,
1,
1000
);
camera.position.z = 1;
let mat = new THREE.ShaderMaterial({
uniforms: {
dispFactor: { type: "f", value: 0.0 },
currentImage: { type: "t", value: sliderImages[0] },
nextImage: { type: "t", value: sliderImages[1] },
},
vertexShader: vertex,
fragmentShader: fragment,
transparent: true,
opacity: 1.0
});
let geometry = new THREE.PlaneBufferGeometry(
parent.offsetWidth,
parent.offsetHeight,
1
);
let object = new THREE.Mesh(geometry, mat);
object.position.set(0, 0, 0);
scene.add(object);
let addEvents = function(){
let pagButtons = Array.from(document.getElementById('pagination').querySelectorAll('button'));
let isAnimating = false;
pagButtons.forEach( (el) => {
el.addEventListener('click', function() {
if( !isAnimating ) {
isAnimating = true;
document.getElementById('pagination').querySelectorAll('.active')[0].className = '';
this.className = 'active';
let slideId = parseInt( this.dataset.slide, 10 );
mat.uniforms.nextImage.value = sliderImages[slideId];
mat.uniforms.nextImage.needsUpdate = true;
TweenLite.to( mat.uniforms.dispFactor, 1, {
value: 1,
ease: 'Expo.easeInOut',
onComplete: function () {
mat.uniforms.currentImage.value = sliderImages[slideId];
mat.uniforms.currentImage.needsUpdate = true;
mat.uniforms.dispFactor.value = 0.0;
isAnimating = false;
}
});
let slideTitleEl = document.getElementById('slide-title');
let slideStatusEl = document.getElementById('slide-status');
let nextSlideTitle = document.querySelectorAll(`[data-slide-title="${slideId}"]`)[0].innerHTML;
let nextSlideStatus = document.querySelectorAll(`[data-slide-status="${slideId}"]`)[0].innerHTML;
TweenLite.fromTo( slideTitleEl, 0.5,
{
autoAlpha: 1,
filter: 'blur(0px)',
y: 0
},
{
autoAlpha: 0,
filter: 'blur(10px)',
y: 20,
ease: 'Expo.easeIn',
onComplete: function () {
slideTitleEl.innerHTML = nextSlideTitle;
TweenLite.to( slideTitleEl, 0.5, {
autoAlpha: 1,
filter: 'blur(0px)',
y: 0,
})
}
});
TweenLite.fromTo( slideStatusEl, 0.5,
{
autoAlpha: 1,
filter: 'blur(0px)',
y: 0
},
{
autoAlpha: 0,
filter: 'blur(10px)',
y: 20,
ease: 'Expo.easeIn',
onComplete: function () {
slideStatusEl.innerHTML = nextSlideStatus;
TweenLite.to( slideStatusEl, 0.5, {
autoAlpha: 1,
filter: 'blur(0px)',
y: 0,
delay: 0.1,
})
}
});
}
});
});
};
addEvents();
window.addEventListener( 'resize' , function(e) {
renderer.setSize(renderW, renderH);
});
let animate = function() {
requestAnimationFrame(animate);
renderer.render(scene, camera);
};
animate();
};
imagesLoaded( document.querySelectorAll('img'), () => {
document.body.classList.remove('loading');
const el = document.getElementById('slider');
const imgs = Array.from(el.querySelectorAll('img'));
new displacementSlider({
parent: el,
images: imgs
});
});
Raw
scripts
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r83/three.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.imagesloaded/4.1.4/imagesloaded.pkgd.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/1.20.4/TweenMax.min.js"></script>
Raw
style.scss
article,aside,details,figcaption,figure,footer,header,hgroup,main,nav,section,summary{display:block;}audio,canvas,video{display:inline-block;}audio:not([controls]){display:none;height:0;}[hidden]{display:none;}html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%;}body{margin:0;}a:focus{outline:thin dotted;}a:active,a:hover{outline:0;}h1{font-size:2em;margin:0.67em 0;}abbr[title]{border-bottom:1px dotted;}b,strong{font-weight:bold;}dfn{font-style:italic;}hr{-moz-box-sizing:content-box;box-sizing:content-box;height:0;}mark{background:#ff0;color:#000;}code,kbd,pre,samp{font-family:monospace,serif;font-size:1em;}pre{white-space:pre-wrap;}q{quotes:"\201C" "\201D" "\2018" "\2019";}small{font-size:80%;}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline;}sup{top:-0.5em;}sub{bottom:-0.25em;}img{border:0;}svg:not(:root){overflow:hidden;}figure{margin:0;}fieldset{border:1px solid #c0c0c0;margin:0 2px;padding:0.35em 0.625em 0.75em;}legend{border:0;padding:0;}button,input,select,textarea{font-family:inherit;font-size:100%;margin:0;}button,input{line-height:normal;}button,select{text-transform:none;}button,html input[type="button"],input[type="reset"],input[type="submit"]{-webkit-appearance:button;cursor:pointer;}button[disabled],html input[disabled]{cursor:default;}input[type="checkbox"],input[type="radio"]{box-sizing:border-box;padding:0;}input[type="search"]{-webkit-appearance:textfield;-moz-box-sizing:content-box;-webkit-box-sizing:content-box;box-sizing:content-box;}input[type="search"]::-webkit-search-cancel-button,input[type="search"]::-webkit-search-decoration{-webkit-appearance:none;}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0;}textarea{overflow:auto;vertical-align:top;}table{border-collapse:collapse;border-spacing:0;}
*,
*::after,
*::before {
box-sizing: border-box;
}
::selection {
background-color: grey;
color: white;
}
::-moz-selection {
background-color: grey;
color: white;
}
@import url("https://use.typekit.net/euz1eqv.css");
html {
background: #fff;
-moz-osx-font-smoothing: grayscale;
-webkit-font-smoothing: antialiased;
}
body {
background-color: #23272A;
overflow: hidden;
}
header {
display: block;
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 115px;
z-index: 10;
background-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/123024/menutexture.png);
background-position: center top;
background-size: auto 200px;
background-repeat: repeat-x;
.inner {
max-width: 1060px;
margin: 0 auto;
display: flex;
height: 70px;
align-items: center;
justify-content: center;
position: relative;
}
.logo {
display: block;
width: 76px;
height: 90px;
position: absolute;
top: 0;
left: 0;
background-color: white;
text-align: center;
img {
width: 45px;
margin-top: 10px;
}
}
nav {
display: none;
a {
font-family: 'Arial', serif;
font-size: 12px;
color: #8c8c8e;
text-transform: uppercase;
letter-spacing: 3px;
text-decoration: none;
margin: 0 18px;
&.active, &:hover {
color: white;
}
}
@media screen and (min-width: 800px) {
display: block;
}
}
.burger {
display: block;
position: relative;
top: -6px;
padding-left: 30px;
&:before {
content: "";
position: absolute;
left: 0;
top: 0;
width: 30px;
height: 2px;
background: white;
box-shadow: 0 12px 0 0 white, 0 6px 0 0 white;
}
@media screen and (min-width: 800px) {
display: none;
}
}
.donate-link {
width: 72px;
text-align: center;
position: absolute;
right: 10px;
top: 27px;
font-family: 'Arial', sans-serif;
font-size: 12px;
color: white;
text-transform: uppercase;
letter-spacing: 3px;
text-decoration: none;
padding-bottom: 6px;
border-bottom: 2px solid rgba(255, 255, 255, 0.3);
}
}
main {
position: relative;
width: 100%;
height: 100vh;
}
#slider {
width: 100%;
max-width: 1200px;
height: 100%;
margin: 0 auto;
position: relative;
canvas {
width: 150%;
height: 150%;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 2;
}
img {
width: 100%;
max-width: 100%;
position: relative;
z-index: 0;
}
}
.slider-inner {
position: relative;
display: flex;
align-items: center;
width: 100%;
max-width: 1060px;
height: 100%;
margin: 0 auto;
z-index: 5;
}
#slider-content {
padding: 0 10px;
h2 {
font-family: 'acta-display', serif;
font-weight: 400;
font-size: 30px;
letter-spacing: -1px;
color: white;
line-height: 30px;
margin: 20px 0 60px;
@media screen and (min-width: 800px) {
font-size: 110px;
line-height: 100px;
}
}
span {
display: none;
}
.meta {
display: inline-block;
font-family: 'Arial', sans-serif;
font-size: 11px;
letter-spacing: 5px;
color: #88888a;
text-transform: uppercase;
position: relative;
@media screen and (min-width: 800px) {
font-size: 13px;
}
&:after {
content: '';
display: block;
position: absolute;
top: 5px;
right: -55px;
width: 45px;
height: 2px;
background-color: #393d40;
}
}
#slide-status {
margin-top: 10px;
font-family: 'acta-display', serif;
font-weight: 400;
font-size: 18px;
color: white;
@media screen and (min-width: 800px) {
font-size: 34px;
}
}
}
#pagination {
position: absolute;
top: 50%;
transform: translateY(-50%);
right: 30px;
z-index: 6;
button {
display: block;
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
border: 0;
width: 16px;
height: 16px;
background-color: #FFFFFF;
border-radius: 100%;
padding: 0;
margin: 30px 0;
cursor: pointer;
position: relative;
opacity: 0.2;
transition: opacity 0.2s ease-in-out;
outline: none;
&:hover {
opacity: 0.5;
}
&.active {
opacity: 1;
&:before {
width: 300%;
height: 300%;
opacity: 1;
}
}
&:before {
content: '';
display: block;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 100%;
height: 100%;
border-radius: 100%;
border: 1px solid rgba(255, 255, 255, 0.2);
opacity: 0;
transition: opacity 0.4s ease-in-out, width 0.4s ease-in-out, height 0.4s ease-in-out;
}
}
}
/* Page Loader */
.loading {
&:before {
content: '';
position: fixed;
z-index: 100000;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: black;
}
&:after {
content: '';
position: fixed;
z-index: 100000;
top: 50%;
left: 50%;
width: 60px;
height: 60px;
margin: -30px 0 0 -30px;
pointer-events: none;
border-radius: 50%;
opacity: 0.4;
background: white;
animation: loaderAnim 0.7s linear infinite alternate forwards;
}
}
@keyframes loaderAnim {
to {
opacity: 1;
transform: scale3d(0.5,0.5,1);
}
}
Raw
webgl-distortion-slider.markdown
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