cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

Pen Settings

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.

Quick-add: + add another resource

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.

Quick-add: + add another resource

Code Indentation

     

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.

            
              body {
    background-color: #000;
    margin: 0;
    overflow: hidden;
}

canvas {
    position: absolute;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    -moz-backface-visibility: hidden;
    -ms-backface-visibility: hidden;
}

img {
    position: absolute;
    -webkit-transition:opacity .3s;
    transition:opacity .3s;
}

#container {
    position: absolute;
    width: 768px;
    height: 432px;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
}
            
          
!
            
              // triangulation using https://github.com/ironwallaby/delaunay

// For more check out zachsaucier.com

const TWO_PI = Math.PI * 2;

var images = [], 
    imageIndex = 0;

var image,
    imageWidth = 768,
    imageHeight = 485;
 
var vertices = [],
    indices = [],
    prevfrag = [],
    fragments = [];

var margin = 50;

var container = document.getElementById('container');

var clickPosition = [imageWidth * 0.5, imageHeight * 0.5];

window.onload = function() {
    TweenMax.set(container, {perspective:500});

    // images from http://www.hdwallpapers.in
    var urls = [
            'https://zachsaucier.com/images/girl.jpg',
            'https://zachsaucier.com/images/flash.jpg',
            'https://zachsaucier.com/images/vader.jpg',
            'https://zachsaucier.com/images/interstellar.jpg'
        ],
        image,
        loaded = 0;
    // very quick and dirty hack to load and display the first image asap
    images[0] = image = new Image();
        image.onload = function() {
            if (++loaded === 1) {
                
                for (var i = 1; i < 4; i++) {
                    images[i] = image = new Image();

                    image.src = urls[i];
                } 
                placeImage();
            }
        };
        image.src = urls[0]; 
};

function placeImage(transitionIn) {
    image = images[imageIndex];

    if (++imageIndex === images.length) imageIndex = 0;
  
    var num = Math.random();
    if(num < .25) {
      image.direction = "left";
    } else if(num < .5) {
      image.direction = "top";
    } else if(num < .75) {
      image.direction = "bottom";
    } else {
      image.direction = "right";
    }

    container.appendChild(image);
    image.style.opacity = 0;
  
    if (transitionIn !== false) {
        triangulateIn();
    }
}

function triangulateIn(event) {
    var box = image.getBoundingClientRect(),
        top = box.top,
        left = box.left;
  
    if(image.direction == "left") {
      clickPosition[0] = 0; 
      clickPosition[1] = imageHeight / 2;
    } else if(image.direction == "top") {
      clickPosition[0] = imageWidth / 2;
      clickPosition[1] = 0;
    } else if(image.direction == "bottom") {
      clickPosition[0] = imageWidth / 2;
      clickPosition[1] = imageHeight;
    } else if(image.direction == "right") {
      clickPosition[0] = imageWidth;
      clickPosition[1] = imageHeight / 2;
    } 
    

    triangulate();
    build();
}

function triangulate() {
    for(var i = 0; i < 40; i++) {      
      x = -margin + Math.random() * (imageWidth + margin * 2);
      y = -margin + Math.random() * (imageHeight + margin * 2);
      vertices.push([x, y]);
    }
    vertices.push([0,0]);
    vertices.push([imageWidth,0]);
    vertices.push([imageWidth, imageHeight]);
    vertices.push([0, imageHeight]);
  
    vertices.forEach(function(v) {
        v[0] = clamp(v[0], 0, imageWidth);
        v[1] = clamp(v[1], 0, imageHeight);
    });
  
    indices = Delaunay.triangulate(vertices);
}

function build() {
    var p0, p1, p2,
        fragment;

    var tl0 = new TimelineMax({onComplete:buildCompleteHandler});

    for (var i = 0; i < indices.length; i += 3) {
        p0 = vertices[indices[i + 0]];
        p1 = vertices[indices[i + 1]];
        p2 = vertices[indices[i + 2]];

        fragment = new Fragment(p0, p1, p2);

        var dx = fragment.centroid[0] - clickPosition[0],
            dy = fragment.centroid[1] - clickPosition[1],
            d = Math.sqrt(dx * dx + dy * dy),
            rx = 30 * sign(dy),
            ry = 90 * -sign(dx),
            delay = d * 0.003 * randomRange(0.9, 1.1);
        fragment.canvas.style.zIndex = Math.floor(d).toString();

        var tl1 = new TimelineMax(); 

        if(image.direction == "left") {
          rx = Math.abs(rx); 
          ry = 0;          
        } else if(image.direction == "top") {
          rx = 0;
          ry = Math.abs(ry);
        } else if(image.direction == "bottom") {
          rx = 0;
          ry = - Math.abs(ry);
        } else if(image.direction == "right") {
          rx = - Math.abs(rx);
          ry = 0;
        } 
        
        tl1.from(fragment.canvas, 1, {
              z:-50,
              rotationX:rx,
              rotationY:ry,
              scaleX:0,
              scaleY:0,
              ease:Cubic.easeIn
         });
        tl1.from(fragment.canvas, 0.4,{alpha:0}, 0.6);
      
        tl0.insert(tl1, delay);

        fragments.push(fragment);
        container.appendChild(fragment.canvas);
    }
}

function buildCompleteHandler() {
    // add pooling?
    image.style.opacity = 1;
    image.addEventListener('transitionend', function catchTrans() {
      fragments.forEach(function(f) {
          container.removeChild(f.canvas);
      });

      fragments.length = 0;
      vertices.length = 0;
      indices.length = 0;

      placeImage();
      this.removeEventListener('transitionend',catchTrans,false);
    }, false);
    
}

//////////////
// MATH UTILS
//////////////

function randomRange(min, max) {
    return min + (max - min) * Math.random();
}

function clamp(x, min, max) {
    return x < min ? min : (x > max ? max : x);
}

function sign(x) {
    return x < 0 ? -1 : 1;
}

//////////////
// FRAGMENT
//////////////

Fragment = function(v0, v1, v2) {
    this.v0 = v0;
    this.v1 = v1;
    this.v2 = v2;

    this.computeBoundingBox();
    this.computeCentroid();
    this.createCanvas();
    this.clip();
};
Fragment.prototype = {
    computeBoundingBox:function() {
        var xMin = Math.min(this.v0[0], this.v1[0], this.v2[0]),
            xMax = Math.max(this.v0[0], this.v1[0], this.v2[0]),
            yMin = Math.min(this.v0[1], this.v1[1], this.v2[1]),
            yMax = Math.max(this.v0[1], this.v1[1], this.v2[1]);

         this.box = {
            x:Math.round(xMin),
            y:Math.round(yMin),
            w:Math.round(xMax - xMin),
            h:Math.round(yMax - yMin)
        };

    },
    computeCentroid:function() {
        var x = (this.v0[0] + this.v1[0] + this.v2[0]) / 3,
            y = (this.v0[1] + this.v1[1] + this.v2[1]) / 3;

        this.centroid = [x, y];
    },
    createCanvas:function() {
        this.canvas = document.createElement('canvas');
        this.canvas.width = this.box.w;
        this.canvas.height = this.box.h;
        this.canvas.style.width = this.box.w + 'px';
        this.canvas.style.height = this.box.h + 'px';
        this.canvas.style.left = this.box.x + 'px';
        this.canvas.style.top = this.box.y + 'px';
        this.ctx = this.canvas.getContext('2d');
    },
    clip:function() {
        this.ctx.save();
        this.ctx.translate(-this.box.x, -this.box.y);
        this.ctx.beginPath();
        this.ctx.moveTo(this.v0[0], this.v0[1]);
        this.ctx.lineTo(this.v1[0], this.v1[1]);
        this.ctx.lineTo(this.v2[0], this.v2[1]);
        this.ctx.closePath();
        this.ctx.clip();
        this.ctx.drawImage(image, 0, 0);
        this.ctx.restore();
    }
};
            
          
!
999px
Loading ..................

Console