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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

              
                <script>
	THREE.ShapeUtils.triangulateShape = (function () {
	        var pnlTriangulator = new PNLTRI.Triangulator();
	        return function triangulateShape(contour, holes) {
	            return pnlTriangulator.triangulate_polygon([contour].concat(holes));
	        };
	    })();
</script>

<div id="three-container"></div>

<div id="instructions">
	click and drag to control the animation
</div>

              
            
!

CSS

              
                body {
	margin: 0;
	overflow: hidden;
}

#instructions {
	position: absolute;
	color: #666;
	bottom: 0;
	padding-bottom: 6px;
	font-family: sans-serif;
	width: 100%;
	text-align: center;
	pointer-events: none;
}
              
            
!

JS

              
                window.onload = init;

function init() {
  var root = new THREERoot({
    createCameraControls:false,
    fov:10
  });
  root.renderer.setClearColor(0xffffff);
	root.renderer.setPixelRatio(window.devicePixelRatio || 1);
  root.camera.position.set(0, 0, 1400);

  var textAnimation = createTextAnimation();
  root.scene.add(textAnimation);

  var tween = TweenMax.fromTo(textAnimation, 4,
    {animationProgress:0},
    {animationProgress:1, ease:Power1.easeInOut, repeat:-1, yoyo:true}
  );
  createTweenScrubber(tween);
}

function createTweenScrubber(tween, seekSpeed) {
  seekSpeed = seekSpeed || 0.001;

  function stop() {
    TweenMax.to(tween, 2, {timeScale:0});
  }

  function resume() {
    TweenMax.to(tween, 2, {timeScale:1});
  }

  function seek(dx) {
    var progress = tween.progress();
    var p = THREE.Math.clamp((progress + (dx * seekSpeed)), 0, 1);

    tween.progress(p);
  }

  var _cx = 0;

  // desktop
  var mouseDown = false;
  document.body.style.cursor = 'pointer';

  window.addEventListener('mousedown', function(e) {
    mouseDown = true;
    document.body.style.cursor = 'ew-resize';
    _cx = e.clientX;
    stop();
  });
  window.addEventListener('mouseup', function(e) {
    mouseDown = false;
    document.body.style.cursor = 'pointer';
    resume();
  });
  window.addEventListener('mousemove', function(e) {
    if (mouseDown === true) {
      var cx = e.clientX;
      var dx = cx - _cx;
      _cx = cx;

      seek(dx);
    }
  });
  // mobile
  window.addEventListener('touchstart', function(e) {
    _cx = e.touches[0].clientX;
    stop();
    e.preventDefault();
  });
  window.addEventListener('touchend', function(e) {
    resume();
    e.preventDefault();
  });
  window.addEventListener('touchmove', function(e) {
    var cx = e.touches[0].clientX;
    var dx = cx - _cx;
    _cx = cx;

    seek(dx);
    e.preventDefault();
  });
}

function createTextAnimation() {
  var geometry = generateTextGeometry('PIECE BY PIECE', {
    size:14,
    height:0,
    font:'droid sans',
    weight:'bold',
    style:'normal',
    bevelSize:0.75,
    bevelThickness:0.50,
    bevelEnabled:true,
    anchor:{x:0.5, y:0.5, z:0.5}
  });

  THREE.BAS.Utils.separateFaces(geometry);

  return new TextAnimation(geometry);
}

function generateTextGeometry(text, params) {
  var geometry = new THREE.TextGeometry(text, params);

  geometry.computeBoundingBox();

  geometry.userData = {};
  geometry.userData.size = {
    width: geometry.boundingBox.max.x - geometry.boundingBox.min.x,
    height: geometry.boundingBox.max.y - geometry.boundingBox.min.y,
    depth: geometry.boundingBox.max.z - geometry.boundingBox.min.z
  };

  var anchorX = geometry.userData.size.width * -params.anchor.x;
  var anchorY = geometry.userData.size.height * -params.anchor.y;
  var anchorZ = geometry.userData.size.depth * -params.anchor.z;
  var matrix = new THREE.Matrix4().makeTranslation(anchorX, anchorY, anchorZ);

  geometry.applyMatrix(matrix);

  return geometry;
}

////////////////////
// CLASSES
////////////////////

function TextAnimation(textGeometry) {
  var bufferGeometry = new THREE.BAS.ModelBufferGeometry(textGeometry);

  var aAnimation = bufferGeometry.createAttribute('aAnimation', 2);
  var aControl0 = bufferGeometry.createAttribute('aControl0', 3);
  var aControl1 = bufferGeometry.createAttribute('aControl1', 3);
  var aEndPosition = bufferGeometry.createAttribute('aEndPosition', 3);

  var faceCount = bufferGeometry.faceCount;
  var i, i2, i3, i4, v;

  var size = textGeometry.userData.size;
  var length = new THREE.Vector3(size.width, size.height, size.depth).multiplyScalar(0.5).length();
  var maxDelay = length * 0.06;

  this.animationDuration = maxDelay + 4 + 1;
  this._animationProgress = 0;

  for (i = 0, i2 = 0, i3 = 0, i4 = 0; i < faceCount; i++, i2 += 6, i3 += 9, i4 += 12) {
    var face = textGeometry.faces[i];
    var centroid = THREE.BAS.Utils.computeCentroid(textGeometry, face);
    var dirX = centroid.x > 0 ? 1 : -1;
    var dirY = centroid.y > 0 ? 1 : -1;

    // animation
    var delay = centroid.length() * THREE.Math.randFloat(0.03, 0.06);
    var duration = THREE.Math.randFloat(2, 4);

    for (v = 0; v < 6; v += 2) {
      aAnimation.array[i2 + v    ] = delay + Math.random();
      aAnimation.array[i2 + v + 1] = duration;
    }

    // ctrl
    var c0x = THREE.Math.randFloat(0, 30) * dirX;
    var c0y = THREE.Math.randFloat(60, 120) * dirY;
    var c0z = THREE.Math.randFloat(-20, 20);

    var c1x = THREE.Math.randFloat(30, 60) * dirX;
    var c1y = THREE.Math.randFloat(0, 60) * dirY;
    var c1z = THREE.Math.randFloat(-20, 20);

    for (v = 0; v < 9; v += 3) {
      aControl0.array[i3 + v    ] = c0x;
      aControl0.array[i3 + v + 1] = c0y;
      aControl0.array[i3 + v + 2] = c0z;

      aControl1.array[i3 + v    ] = c1x;
      aControl1.array[i3 + v + 1] = c1y;
      aControl1.array[i3 + v + 2] = c1z;
    }
  }

  var material = new THREE.BAS.BasicAnimationMaterial({
      shading: THREE.FlatShading,
      side: THREE.DoubleSide,
      uniforms: {
        uTime: {type: 'f', value: 0}
      },
      shaderFunctions: [
        THREE.BAS.ShaderChunk['cubic_bezier']
      ],
      shaderParameters: [
        'uniform float uTime;',
        'attribute vec2 aAnimation;',
        'attribute vec3 aControl0;',
        'attribute vec3 aControl1;',
        'attribute vec3 aEndPosition;'
      ],
      shaderVertexInit: [
        'float tDelay = aAnimation.x;',
        'float tDuration = aAnimation.y;',
        'float tTime = clamp(uTime - tDelay, 0.0, tDuration);',
        'float tProgress = tTime / tDuration;'
      ],
      shaderTransformPosition: [
        'vec3 tPosition = transformed;',
        'tPosition *= 1.0 - tProgress;',
        'tPosition += cubicBezier(transformed, aControl0, aControl1, aEndPosition, tProgress);',
        'transformed = tPosition;'
      ]
    },
    {
      diffuse: 0x000000
    }
  );

  THREE.Mesh.call(this, bufferGeometry, material);

  this.frustumCulled = false;
}
TextAnimation.prototype = Object.create(THREE.Mesh.prototype);
TextAnimation.prototype.constructor = TextAnimation;

Object.defineProperty(TextAnimation.prototype, 'animationProgress', {
  get: function() {
    return this._animationProgress;
  },
  set: function(v) {
    this._animationProgress = v;
    this.material.uniforms['uTime'].value = this.animationDuration * v;
  }
});

function THREERoot(params) {
  params = utils.extend({
    antialias:false,

    fov:60,
    zNear:1,
    zFar:10000,

    createCameraControls:true
  }, params);

  this.renderer = new THREE.WebGLRenderer({
    antialias:params.antialias
  });
  document.getElementById('three-container').appendChild(this.renderer.domElement);

  this.camera = new THREE.PerspectiveCamera(
    params.fov,
    window.innerWidth / window.innerHeight,
    params.zNear,
    params.zfar
  );

  this.scene = new THREE.Scene();

  if (params.createCameraControls) {
    this.controls = new THREE.OrbitControls(this.camera, this.renderer.domElement);
  }

  this.resize = this.resize.bind(this);
  this.tick = this.tick.bind(this);

  this.resize();
  this.tick();

  window.addEventListener('resize', this.resize, false);
}
THREERoot.prototype = {
  tick: function() {
    this.update();
    this.render();
    requestAnimationFrame(this.tick);
  },
  update: function() {
    this.controls && this.controls.update();
  },
  render: function() {
    this.renderer.render(this.scene, this.camera);
  },
  resize: function() {
    this.camera.aspect = window.innerWidth / window.innerHeight;
    this.camera.updateProjectionMatrix();

    this.renderer.setSize(window.innerWidth, window.innerHeight);
  }
};

////////////////////
// UTILS
////////////////////

var utils = {
  extend:function(dst, src) {
    for (var key in src) {
      dst[key] = src[key];
    }

    return dst;
  }
};

              
            
!
999px

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