Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                        <script src="https://kit.fontawesome.com/48764efa36.js" crossorigin="anonymous"></script>
        <link rel="preconnect" href="https://fonts.gstatic.com">
        <link href="https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@300;400;600&display=swap" rel="stylesheet">

    <h1>Select Your Path</h1>
    <div id="album-rotator">
        <div id="album-rotator-holder">
            <a target="_top" class="album-item" href="https://twitter.com/thisisfjolt">
                <span class="album-details">
                    <span class="icon"><i class="far fa-at"></i> thisisfjolt</span>
                    <span class="title">Click to</span>
                    <span class="subtitle">Follow</span>
                    <span class="subtext">On Twitter</span>
                </span>
            </a>
            <a target="_top" class="album-item" href="https://fjolt.com/article/apple-cards-webl-gl-javascript">
                <span class="album-details">
                    <span class="title">Read the</span>
                    <span class="subtitle">Tutorial</span>
                    <span class="subtext">View tutorial for this effect</span>
                </span>
            </a>
            <a target="_top" class="album-item" href="https://twitter.com/smpnjn">
                <span class="album-details">
                    <span class="title">Finally</span>
                    <span class="subtitle">We Go</span>
                    <span class="subtext">Some text to describe this item</span>
                </span>
            </a>
            <a target="_top" class="album-item" href="https://twitter.com/smpnjn">
                <span class="album-details">
                    <span class="title">And</span>
                    <span class="subtitle">One More</span>
                    <span class="subtext">Some text to describe this item</span>
                </span>
            </a>
            <a class="album-item" href="https://twitter.com/smpnjn">
                <span class="album-details">
                    <span class="title">And</span>
                    <span class="subtitle">Finally..</span>
                    <span class="subtext">Some text to describe this item</span>
                </span>
            </a>
        </div>
    </div>
<script id="noise" type="x-shader/x-fragment">
  #define NUM_OCTAVES 5

vec3 mod289(vec3 x) { return x - floor(x * (1.0 / 289.0)) * 289.0; }
vec2 mod289(vec2 x) { return x - floor(x * (1.0 / 289.0)) * 289.0; }
vec3 permute(vec3 x) { return mod289(((x*34.0)+1.0)*x); }

float rand(float n){return fract(sin(n) * 43758.5453123);}
float rand(vec2 n) { 
    return fract(sin(dot(n, vec2(12.9898, 4.1414))) * 43758.5453);
}
float noise(float p){
    float fl = floor(p);
  float fc = fract(p);
    return mix(rand(fl), rand(fl + 1.0), fc);
}
float noise(vec2 n) {
    const vec2 d = vec2(0.0, 1.0);
  vec2 b = floor(n), f = smoothstep(vec2(0.0), vec2(1.0), fract(n));
    return mix(mix(rand(b), rand(b + d.yx), f.x), mix(rand(b + d.xy), rand(b + d.yy), f.x), f.y);
}

float snoise(vec2 v) {
    const vec4 C = vec4(0.211324865405187,  // (3.0-sqrt(3.0))/6.0
                        0.366025403784439,  // 0.5*(sqrt(3.0)-1.0)
                        -0.577350269189626,  // -1.0 + 2.0 * C.x
                        0.024390243902439); // 1.0 / 41.0
    vec2 i  = floor(v + dot(v, C.yy) );
    vec2 x0 = v -   i + dot(i, C.xx);
    vec2 i1;
    i1 = (x0.x > x0.y) ? vec2(1.0, 0.0) : vec2(0.0, 1.0);
    vec4 x12 = x0.xyxy + C.xxzz;
    x12.xy -= i1;
    i = mod289(i); // Avoid truncation effects in permutation
    vec3 p = permute( permute( i.y + vec3(0.0, i1.y, 1.0 ))
        + i.x + vec3(0.0, i1.x, 1.0 ));

    vec3 m = max(0.5 - vec3(dot(x0,x0), dot(x12.xy,x12.xy), dot(x12.zw,x12.zw)), 0.0);
    m = m*m ;
    m = m*m ;
    vec3 x = 2.0 * fract(p * C.www) - 1.0;
    vec3 h = abs(x) - 0.5;
    vec3 ox = floor(x + 0.5);
    vec3 a0 = x - ox;
    m *= 1.79284291400159 - 0.85373472095314 * ( a0*a0 + h*h );
    vec3 g;
    g.x  = a0.x  * x0.x  + h.x  * x0.y;
    g.yz = a0.yz * x12.xz + h.yz * x12.yw;
    return 130.0 * dot(m, g);
}
const mat2 m2 = mat2(0.8,-0.6,0.6,0.8);

#define NB_OCTAVES 8
#define LACUNARITY 10.0
#define GAIN 0.5

float fbm(in vec2 p) {
    float total = 0.0,
        frequency = 1.0,
        amplitude = 1.0;
    
    for (int i = 0; i < NB_OCTAVES; i++) {
        total += snoise(p * frequency) * amplitude;
        frequency *= LACUNARITY;
        amplitude *= GAIN;
    }    
    return total;
}

</script>
<script id="vertex" type="x-shader/x-fragment">
  uniform float u_time;
uniform float u_height;
uniform vec2 u_rand;

float xDistortion;
float yDistortion;

varying float vDistortion;
varying vec2 vUv;

void main() {
    vUv = uv;
    vDistortion = snoise(vUv.xx * 3. - vec2(u_time / u_rand.x, u_time / u_rand.x) + cos(vUv.yy) * u_rand.y) * u_height;
    xDistortion = snoise(vUv.xx * 1.) * u_height * u_rand.x / 10.;
    vec3 pos = position;
    pos.z += (vDistortion * 55.);
    pos.x += (xDistortion * 55.);
    pos.y += (sin(vUv.y) * 55.);
    
    gl_Position = projectionMatrix * modelViewMatrix * vec4(pos, 1.0);
}

</script>
<script id="fragment" type="x-shader/x-fragment">
  vec3 rgb(float r, float g, float b) {
    return vec3(r / 255., g / 255., b / 255.);
}
vec3 rgb(float c) {
    return vec3(c / 255., c / 255., c / 255.);
}

uniform vec3 u_lowColor;
uniform vec3 u_highColor;
uniform float u_time;

varying vec2 vUv;
varying float vDistortion;
varying float xDistortion;

void main() {
    vec3 highColor = rgb(u_highColor.r, u_highColor.g, u_highColor.b);
    
    vec3 colorMap = rgb(u_lowColor.r, u_lowColor.g, u_lowColor.b);

    colorMap = mix(colorMap, highColor, vDistortion);
    
    gl_FragColor = vec4(colorMap, 1.);
}

  </script>
              
            
!

CSS

              
                body {
    padding: 0;
    margin: 0;
    background: radial-gradient(circle at top left, #161231, #161231);
    font-family: "Source Sans Pro", -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    padding: 4rem;
}

#album-rotator {
    width: 1000px;
    float: left;
    white-space: nowrap;
    overflow: hidden;
    position: relative;
    word-break: keep-all;
    padding: 2rem 0;
}
#album-rotator-holder {
    position: relative;
    user-select: none;
    will-change: transform;
    /* transition: all 0.01s ease-out; */
    /* transition: all 0.01s linear; */
}

div#album-rotator-holder {}
#album-rotator:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    background: linear-gradient(-90deg, #161231 5%, transparent 40%);
}
.album-item {
    word-break: keep-all;
    background: black;
    box-shadow: 0 2px 30px rgba(0,0,0,0.5);
    position: relative;
    width: 250px;
    -webkit-user-drag: none;
    user-drag: none;
    height: 300px;
    user-select: none;
    border-radius: 10px;
    white-space: nowrap;
    overflow: hidden;
    display: inline-block;
    margin: 0 3rem 0 0;
    transition: all 0.2s ease-out;
    transform: scale(1);
}

.album-item:hover {
    transform: scale(1.02);
}
.album-details {
    background: transparent;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    text-shadow: 0 2px 15px rgba(0,0,0,0.5);
    padding: 1rem;
    white-space: initial;
    float: left;
    box-sizing: border-box;
    color: white;
    height: 100%;
    font-size: 2.5rem;
    font-weight: 600;
    z-index: 99;
}
.title {
    font-weight: 900;
    display: inline-block;
    width: 100%;
}
.subtitle {
    font-weight: 100;
    line-height: 1.25rem;
}
.subtext {
    font-size: 1.1167rem;
    position: absolute;
    bottom: 0;
    left: 0;
    padding: 1.25rem 1rem;
    width: 100%;
    white-space: initial;
    letter-spacing: 0;
    box-sizing: border-box;
    font-weight: 400;
}
.icon {
    font-size: 1rem;
    line-height: 1rem;
    display: block;
    padding: 0 0 0.5rem 0;
}
canvas {
    position: absolute;
    top: 0;
    left: 0;
}
h1 {
    font-size: 2.5rem;
    color: white;
    margin: 0;
    font-weight: 600;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
              
            
!

JS

              
                import * as THREE from 'https://cdn.skypack.dev/three@v0.122.0';

// Helper functions
const rgb = function(r, g, b) {
    return new THREE.Vector3(r, g, b);
}
const loader = function(path, texture) {
    return new Promise((resolve, reject) => {
        let loader = new THREE.FileLoader();
        if(typeof texture !== "undefined") {
            loader = new THREE.TextureLoader();
        }
        loader.load(path, (item) => resolve(item));
    })
}
const randomInteger = function(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
}
// -- End Helper Functions

const config = {
    individualItem: '.album-item', // class of individual item
    carouselWidth: 1000, // in px
    carouselId: '#album-rotator', // carousel selector
    carouselHolderId: '#album-rotator-holder', // carousel should be <div id="carouselId"><div id="carouselHolderId">{items}</div></div>
    colors: [
        // Define colors for each item. If more items than colors, then first color will be used as default
        // Format { low: rgb(), high: rgb() for each color }
        { low: rgb(0, 114, 255), high: rgb(48, 0, 255) },
        { low: rgb(236, 166, 15), high: rgb(233, 104, 0) },
        { low: rgb(43, 75, 235), high: rgb(213, 51, 248) },
        { low: rgb(175, 49, 49), high: rgb(123, 16, 16) }
    ]
}

// Async function for generating webGL waves
const createWave = async function(selector, colors) {      
    if(document.querySelectorAll(selector) !== null && document.querySelectorAll(selector).length > 0) {
        // Import all the fragment and vertex shaders
        const noise = document.getElementById('noise').textContent;
        const fragment = document.getElementById('fragment').textContent
        const vertex =document.getElementById('vertex').textContent
        let i = 0;
        // For each of the selector elements
        document.querySelectorAll(selector).forEach(function(item) {
            // Create a renderer
            
            const newCanvas = document.createElement('canvas');
            newCanvas.id = `canvas-${i}`;
            item.appendChild(newCanvas);
            
            const renderer = new THREE.WebGLRenderer({
                powerPreference: "high-performance",
                antialias: true, 
                alpha: true,
                canvas: document.getElementById(`canvas-${i}`)
            });


            // Get el width and height
            const elWidth = parseFloat(window.getComputedStyle(item).width);
            const elHeight = parseFloat(window.getComputedStyle(item).height);

            // Set sizes and set scene/camera
            renderer.setSize( elWidth, elHeight );
            renderer.setPixelRatio( window.devicePixelRatio );

            const scene = new THREE.Scene();
            const camera = new THREE.PerspectiveCamera( 75, elWidth / elHeight, 0.1, 1000 );

            // Check on colors to use
            let high = colors[0].high; 
            let low = colors[0].low;
            if(typeof colors[i] !== "undefined") {
                high = colors[i].high;
                low = colors[i].low;
                ++i;
            }

            // And use the high color for the subtext.
            if(item.querySelector('.subtext') !== null) {
                item.querySelector('.subtext').style.background = `rgba(${high.x},${high.y},${high.z},0.75)`;
            }

            // Create a plane, and pass that through to our shaders
            let geometry = new THREE.PlaneGeometry(600, 600, 100, 100);
            let material = new THREE.ShaderMaterial({
                uniforms: {
                    u_lowColor: {type: 'v3', value: low },
                    u_highColor: {type: 'v3', value: high },
                    u_time: {type: 'f', value: 0},
                    u_height: {type: 'f', value: 1},
                    u_rand: {type: 'f', value: new THREE.Vector2(randomInteger(6, 10), randomInteger(8, 10)) }
                },
                fragmentShader: noise + fragment,
                vertexShader: noise + vertex,
            });

            // Create the mesh and position appropriately
            let mesh = new THREE.Mesh(geometry, material);
            mesh.position.set(0, 0, -300);
            mesh.material.needsUpdate = true;
            scene.add(mesh);
            
            // On hover effects for each item
            let enterTimer, exitTimer;
            item.addEventListener('mouseenter', function(e) {
                if(typeof exitTimer !== "undefined") {
                    clearTimeout(exitTimer);
                }
                enterTimer = setInterval(function() {
                    if(mesh.material.uniforms.u_height.value >= 0.5) {
                        mesh.material.uniforms.u_height.value -= 0.05;
                    } else {
                        clearTimeout(enterTimer);
                    }
                }, 10);
            });
            item.addEventListener('mouseleave', function(e) {
                if(typeof enterTimer !== "undefined") {
                    clearTimeout(enterTimer);
                }
                exitTimer = setInterval(function() {
                    if(mesh.material.uniforms.u_height.value < 1) {
                        mesh.material.uniforms.u_height.value += 0.05;
                    } else {
                        clearTimeout(exitTimer);
                    }
                }, 10);
            });

            // Render
            renderer.render( scene, camera );
            let t = 0;

            // Animate
            const animate = function () {
              requestAnimationFrame( animate );
                renderer.render( scene, camera );
                mesh.material.uniforms.u_time.value = t;
                t = t + 0.02;
            };
            animate();
        });
    }
}

document.addEventListener("DOMContentLoaded", function(e) {
    createWave(config.individualItem, config.colors);

    // Get items
    const el = document.querySelector(config.individualItem);
    const elWidth = parseFloat(window.getComputedStyle(el).width) + parseFloat(window.getComputedStyle(el).marginLeft) + parseFloat(window.getComputedStyle(el).marginRight);
    
    // Track carousel
    let mousedown = false;
    let movement = false;
    let initialPosition = 0;
    let selectedItem;
    let currentDelta = 0;

    document.querySelectorAll(config.carouselId).forEach(function(item) { 
        item.style.width = `${config.carouselWidth}px`;
    });
    
    document.querySelectorAll(config.carouselId).forEach(function(item) {
        item.addEventListener('pointerdown', function(e) {
            mousedown = true;
            selectedItem = item;
            initialPosition = e.pageX;
            currentDelta = parseFloat(item.querySelector(config.carouselHolderId).style.transform.split('translateX(')[1]) || 0;
        }); 
    });
    
    const scrollCarousel = function(change, currentDelta, selectedItem) {
        let numberThatFit = Math.floor(config.carouselWidth / elWidth);
        let newDelta = currentDelta + change;
        let elLength = selectedItem.querySelectorAll(config.individualItem).length - numberThatFit;
        if(newDelta <= 0 && newDelta >= -elWidth * elLength) {
            selectedItem.querySelector(config.carouselHolderId).style.transform = `translateX(${newDelta}px)`;
        } else {
            if(newDelta <= -elWidth * elLength) {
                selectedItem.querySelector(config.carouselHolderId).style.transform = `translateX(${-elWidth * elLength}px)`;
            } else if(newDelta >= 0) {
                selectedItem.querySelector(config.carouselHolderId).style.transform = `translateX(0px)`;
            }
        }
    }

    document.body.addEventListener('pointermove', function(e) {
        if(mousedown == true && typeof selectedItem !== "undefined") {
            let change = -(initialPosition - e.pageX);
            scrollCarousel(change, currentDelta, document.body);
            document.querySelectorAll(`${config.carouselId} a`).forEach(function(item) {
                item.style.pointerEvents = 'none';
            });
            movement = true;
        }
    });
    
    ['pointerup', 'mouseleave'].forEach(function(item) {
        document.body.addEventListener(item, function(e) {
            selectedItem = undefined;
            movement = false;
            document.querySelectorAll(`${config.carouselId} a`).forEach(function(item) {
                item.style.pointerEvents = 'all';
            });
        });
    });

    document.querySelectorAll(config.carouselId).forEach(function(item) {
        let trigger = 0;
        item.addEventListener('wheel', function(e) {
            if(trigger !== 1) {
                ++trigger;
            } else {
                let change = e.deltaX * -3;
                let currentDelta = parseFloat(item.querySelector(config.carouselHolderId).style.transform.split('translateX(')[1]) || 0;
                scrollCarousel(change, currentDelta, item);
                trigger = 0;
            }
            e.preventDefault();
            e.stopImmediatePropagation();
            return false;
        });
    });
});
              
            
!
999px

Console