css Audio - Active file-generic CSS - Active Generic - Active HTML - Active JS - Active SVG - Active Text - Active file-generic Video - Active header Love html icon-new-collection icon-person icon-team numbered-list123 pop-out spinner split-screen star tv

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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.

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

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

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

window.onload = init;

var settings = {
	letterTimeOffset: 0.075
};

function init() {
	var root = new THREERoot({
		createCameraControls: !true,
		antialias: (window.devicePixelRatio === 1),
		fov: 80
	});

	root.renderer.setClearColor(0x000000);
	root.renderer.setPixelRatio(window.devicePixelRatio || 1);
	root.camera.position.set(0, 0, 250);

	new THREE.FontLoader().load('https://s3-us-west-2.amazonaws.com/s.cdpn.io/175711/droid_sans_bold.typeface.js', function(font) {

		var textAnimationData = createTextAnimation(font);

		var group = new THREE.Group();
		root.scene.add(group);

		var textAnimation = new TextAnimation(textAnimationData);
		group.add(textAnimation);

		var explosionAnimation = new ExplosionAnimation(textAnimationData);
		group.add(explosionAnimation);

		var box = textAnimationData.geometry.boundingBox;
		group.position.copy(box.size()).multiplyScalar(-0.5);

		var light = new THREE.DirectionalLight(0xffffff, 1.0);
		light.position.set(0, 0, 1);
		root.scene.add(light);

		var lightTl = new TimelineMax();

		var maxTime = Math.max(textAnimation.animationDuration, explosionAnimation.animationDuration);
		var duration = 6.0;

		for (var i = 0; i < textAnimationData.info.length; i++) {
			var color = textAnimationData.info[i].color;
			var pos = textAnimationData.info[i].boundingBox.center();

			pos.x += textAnimationData.info[i].glyphOffset;

			light = new THREE.PointLight(color, 2.0, 80, 2);
			light.position.copy(pos);

			group.add(light);

			lightTl.fromTo(light, 0.4, {
					intensity: 0
				}, {
					intensity: 4.0,
					repeat: 1,
					yoyo: true
				},
				(i * settings.letterTimeOffset) * (duration / maxTime));
		}

		var tl = new TimelineMax({
			repeat: -1,
			repeatDelay: 0.5,
			yoyo: true
		});
		tl.to(textAnimation, duration, {
			time: maxTime,
			ease: Power0.easeIn
		}, 0);
		tl.to(explosionAnimation, duration, {
			time: maxTime,
			ease: Power0.easeIn
		}, 0);
		tl.add(lightTl, 0);

		// tl.timeScale(0.1)

		createTweenScrubber(tl);
	});
}

function createTextAnimation(font) {
	var hash = window.location.href.split('#')[1];;
	var text = hash || 'BLOWN APART';

	var params = {
		size: 36,
		height: 8,
		font: font,
		curveSegments: 12,
		bevelEnabled: true,
		bevelSize: 1,
		bevelThickness: 1,
		anchor: {
			x: 0.5,
			y: 0.5,
			z: 0.5
		}
	};

	return generateSplitTextGeometry(text, params);
}

function generateSplitTextGeometry(text, params) {
	var matrix = new THREE.Matrix4();

	var scale = params.size / params.font.data.resolution;
	var offset = 0;

	var data = {
		geometry: new THREE.Geometry(),
		info: []
	};
	var faceOffset = 0;

	for (var i = 0; i < text.length; i++) {
		var char = text[i];
		var glyph = params.font.data.glyphs[char];
		var charGeometry = new THREE.TextGeometry(char, params);

		data.info[i] = {};

		// compute and store char bounding box
		charGeometry.computeBoundingBox();
		data.info[i].boundingBox = charGeometry.boundingBox.clone();

		// translate char based on font data
		matrix.identity().makeTranslation(offset, 0, 0);
		charGeometry.applyMatrix(matrix);

		data.info[i].glyphOffset = offset;
		offset += glyph.ha * scale;

		// store face index offsets
		THREE.BAS.Utils.tessellate(charGeometry, 1.0);
		THREE.BAS.Utils.separateFaces(charGeometry);

		data.info[i].faceCount = charGeometry.faces.length;
		data.info[i].faceOffset = faceOffset;

		faceOffset += charGeometry.faces.length;

		// colors!
		data.info[i].color = new THREE.Color();
		data.info[i].color.setHSL(i / (text.length - 1), 1.0, 0.5);

		// merge char geometry into text geometry
		data.geometry.merge(charGeometry);
	}

	data.geometry.computeBoundingBox();

	return data;
}

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

function TextAnimation(data) {
	var textGeometry = data.geometry;

	var bufferGeometry = new TextAnimationGeometry(textGeometry);

	var aAnimation = bufferGeometry.createAttribute('aAnimation', 2);
	var aStartPosition = bufferGeometry.createAttribute('aStartPosition', 3);
	var aEndPosition = bufferGeometry.createAttribute('aEndPosition', 3);
	var aAxisAngle = bufferGeometry.createAttribute('aAxisAngle', 4);

	var minDuration = 1.0;
	var maxDuration = 2.0;

	this.animationDuration = maxDuration + data.info.length * settings.letterTimeOffset;

	var axis = new THREE.Vector3();
	var angle;

	var glyphSize = new THREE.Vector3();
	var glyphCenter = new THREE.Vector3();
	var centroidLocal = new THREE.Vector3();
	var delta = new THREE.Vector3();

	for (var f = 0; f < data.info.length; f++) {
		bufferChar(data.info[f], f);
	}

	function bufferChar(info, index) {
		var s = info.faceOffset;
		var l = info.faceOffset + info.faceCount;
		var box = info.boundingBox;
		var glyphOffset = info.glyphOffset;

		box.size(glyphSize);
		box.center(glyphCenter);

		var i, i2, i3, i4, v;

		var delay = index * settings.letterTimeOffset;

		for (i = s, i2 = s * 6, i3 = s * 9, i4 = s * 12; i < l; i++, i2 += 6, i3 += 9, i4 += 12) {

			var face = textGeometry.faces[i];
			var centroid = THREE.BAS.Utils.computeCentroid(textGeometry, face);

			// animation

			var duration = THREE.Math.randFloat(minDuration, maxDuration);

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

			// start position (centroid)
			for (v = 0; v < 9; v += 3) {
				aStartPosition.array[i3 + v] = centroid.x;
				aStartPosition.array[i3 + v + 1] = centroid.y;
				aStartPosition.array[i3 + v + 2] = centroid.z;
			}

			// end position
			centroidLocal.copy(centroid);
			centroidLocal.x -= glyphOffset;
			delta.subVectors(centroidLocal, glyphCenter);

			delta.y += THREE.Math.randFloatSpread(10.0);

			var x = delta.x * THREE.Math.randFloat(4.0, 12.0);
			var y = delta.y * THREE.Math.randFloat(4.0, 12.0);
			var z = delta.z * THREE.Math.randFloat(4.0, 12.0);

			for (v = 0; v < 9; v += 3) {
				aEndPosition.array[i3 + v] = centroid.x + x;
				aEndPosition.array[i3 + v + 1] = centroid.y + y;
				aEndPosition.array[i3 + v + 2] = centroid.z + z;
			}

			// axis angle
			axis.x = THREE.Math.randFloatSpread(2);
			axis.y = THREE.Math.randFloatSpread(2);
			axis.z = THREE.Math.randFloatSpread(2);
			axis.normalize();
			angle = Math.PI * THREE.Math.randFloat(4.0, 8.0);

			for (v = 0; v < 12; v += 4) {
				aAxisAngle.array[i4 + v] = axis.x;
				aAxisAngle.array[i4 + v + 1] = axis.y;
				aAxisAngle.array[i4 + v + 2] = axis.z;
				aAxisAngle.array[i4 + v + 3] = angle;
			}
		}
	}

	var material = new THREE.BAS.PhongAnimationMaterial({
		shading: THREE.FlatShading,
		side: THREE.DoubleSide,
		transparent: true,
		uniforms: {
			uTime: {
				type: 'f',
				value: 0
			}
		},
		shaderFunctions: [
			THREE.BAS.ShaderChunk['cubic_bezier'],
			THREE.BAS.ShaderChunk['ease_out_cubic'],
			THREE.BAS.ShaderChunk['quaternion_rotation']
		],
		shaderParameters: [
			'uniform float uTime;',
			'uniform vec3 uAxis;',
			'uniform float uAngle;',
			'attribute vec2 aAnimation;',
			'attribute vec3 aStartPosition;',
			'attribute vec3 aEndPosition;',
			'attribute vec4 aAxisAngle;'
		],
		shaderVertexInit: [
			'float tDelay = aAnimation.x;',
			'float tDuration = aAnimation.y;',
			'float tTime = clamp(uTime - tDelay, 0.0, tDuration);',
			//'float tProgress = ease(tTime, 0.0, 1.0, tDuration);'
			'float tProgress = tTime / tDuration;'
		],
		shaderTransformPosition: [
			// scale
			'transformed *= 1.0 - tProgress;',

			// rotate
			'float angle = aAxisAngle.w * tProgress;',
			'vec4 tQuat = quatFromAxisAngle(aAxisAngle.xyz, angle);',
			'transformed = rotateVector(tQuat, transformed);',

			// translate
			'transformed += mix(aStartPosition, aEndPosition, tProgress);'
		]
	}, {
		//diffuse: 0x444444,
		//specular: 0xcccccc,
		//shininess: 4,
		//emissive: 0x444444
	});

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

	this.frustumCulled = false;
}
TextAnimation.prototype = Object.create(THREE.Mesh.prototype);
TextAnimation.prototype.constructor = TextAnimation;
Object.defineProperty(TextAnimation.prototype, 'time', {
	get: function() {
		return this.material.uniforms['uTime'].value;
	},
	set: function(v) {
		this.material.uniforms['uTime'].value = v;
	}
});

function TextAnimationGeometry(model) {
	THREE.BAS.ModelBufferGeometry.call(this, model);
}
TextAnimationGeometry.prototype = Object.create(THREE.BAS.ModelBufferGeometry.prototype);
TextAnimationGeometry.prototype.constructor = TextAnimationGeometry;
TextAnimationGeometry.prototype.bufferPositions = function() {
	var positionBuffer = this.createAttribute('position', 3).array;

	for (var i = 0; i < this.faceCount; i++) {
		var face = this.modelGeometry.faces[i];
		var centroid = THREE.BAS.Utils.computeCentroid(this.modelGeometry, face);

		var a = this.modelGeometry.vertices[face.a];
		var b = this.modelGeometry.vertices[face.b];
		var c = this.modelGeometry.vertices[face.c];

		positionBuffer[face.a * 3] = a.x - centroid.x;
		positionBuffer[face.a * 3 + 1] = a.y - centroid.y;
		positionBuffer[face.a * 3 + 2] = a.z - centroid.z;

		positionBuffer[face.b * 3] = b.x - centroid.x;
		positionBuffer[face.b * 3 + 1] = b.y - centroid.y;
		positionBuffer[face.b * 3 + 2] = b.z - centroid.z;

		positionBuffer[face.c * 3] = c.x - centroid.x;
		positionBuffer[face.c * 3 + 1] = c.y - centroid.y;
		positionBuffer[face.c * 3 + 2] = c.z - centroid.z;
	}
};

function ExplosionAnimation(data) {
	var letterCount = data.info.length;
	var prefabsPerLetter = 750;
	var prefabCount = prefabsPerLetter * letterCount;
	var prefabSize = 2.0;

	// var prefabGeometry = new THREE.TetrahedronGeometry(prefabSize);
	var prefabGeometry = new THREE.PlaneGeometry(prefabSize, prefabSize, 1, 4);

	var geometry = new ExplosionAnimationGeometry(prefabGeometry, prefabCount);

	var aDelayDuration = geometry.createAttribute('aDelayDuration', 2);
	var aColor = geometry.createAttribute('color', 3);
	var aStartPosition = geometry.createAttribute('aStartPosition', 3);
	var aControlPosition0 = geometry.createAttribute('aControlPosition0', 3);
	var aControlPosition1 = geometry.createAttribute('aControlPosition1', 3);
	var aEndPosition = geometry.createAttribute('aEndPosition', 3);
	var aAxisAngle = geometry.createAttribute('aAxisAngle', 4);

	var duration, delay;
	var minDuration = 0.25;
	var maxDuration = 0.5;
	var vertexDelay = 0.0125;

	this.animationDuration = (maxDuration + vertexDelay * prefabGeometry.vertices.length) * letterCount * settings.letterTimeOffset;

	var glyphSize = new THREE.Vector3();
	var glyphCenter = new THREE.Vector3();

	for (var index = 0; index < letterCount; index++) {
		var letterOffset = prefabsPerLetter * index;
		var letterBox = data.info[index].boundingBox;
		letterBox.size(glyphSize);
		letterBox.center(glyphCenter);
		glyphCenter.x += data.info[index].glyphOffset;

		var i, j, offset;

		delay = index * settings.letterTimeOffset;

		for (i = 0, offset = letterOffset * prefabGeometry.vertices.length * 2; i < prefabCount; i++) {
			duration = THREE.Math.randFloat(minDuration, maxDuration);

			for (j = 0; j < prefabGeometry.vertices.length; j++) {

				aDelayDuration.array[offset++] = delay + vertexDelay * j * duration;
				aDelayDuration.array[offset++] = duration;
			}
		}

		var color = data.info[index].color;
		var colorHSL = color.getHSL();
		var h, s, l;

		for (i = 0, offset = letterOffset * prefabGeometry.vertices.length * 3; i < prefabCount; i++) {
			h = colorHSL.h;
			s = THREE.Math.randFloat(0.50, 1.00);
			l = THREE.Math.randFloat(0.25, 0.75);
			color.setHSL(h, s, l);

			for (j = 0; j < geometry.prefabVertexCount; j++) {
				aColor.array[offset] = color.r;
				aColor.array[offset + 1] = color.g;
				aColor.array[offset + 2] = color.b;

				offset += 3;
			}
		}

		var u, v, sp, ep, cp0, cp1;

		for (i = 0, offset = letterOffset * prefabGeometry.vertices.length * 3; i < prefabCount; i++) {
			sp = glyphCenter;

			u = Math.random();
			v = Math.random();
			ep = utils.spherePoint(u, v);
			ep.x *= THREE.Math.randFloat(40, 80);
			ep.y *= THREE.Math.randFloat(80, 120);
			ep.z *= THREE.Math.randFloat(40, 80);

			u *= THREE.Math.randFloat(0.8, 1.2);
			v *= THREE.Math.randFloat(0.8, 1.2);
			cp0 = utils.spherePoint(u, v);
			cp0.x *= THREE.Math.randFloat(10, 20);
			cp0.y *= THREE.Math.randFloat(40, 60);
			cp0.z *= THREE.Math.randFloat(10, 20);

			u *= THREE.Math.randFloat(0.8, 1.2);
			v *= THREE.Math.randFloat(0.8, 1.2);
			cp1 = utils.spherePoint(u, v);
			cp1.x *= THREE.Math.randFloat(20, 40);
			cp1.y *= THREE.Math.randFloat(60, 80);
			cp1.z *= THREE.Math.randFloat(20, 40);

			for (j = 0; j < prefabGeometry.vertices.length; j++) {
				aStartPosition.array[offset] = sp.x;
				aStartPosition.array[offset + 1] = sp.y;
				aStartPosition.array[offset + 2] = sp.z;

				aEndPosition.array[offset] = sp.x + ep.x;
				aEndPosition.array[offset + 1] = sp.y + ep.y;
				aEndPosition.array[offset + 2] = sp.z + ep.z;

				aControlPosition0.array[offset] = sp.x + cp0.x;
				aControlPosition0.array[offset + 1] = sp.y + cp0.y;
				aControlPosition0.array[offset + 2] = sp.z + cp0.z;

				aControlPosition1.array[offset] = sp.x + cp1.x;
				aControlPosition1.array[offset + 1] = sp.y + cp1.y;
				aControlPosition1.array[offset + 2] = sp.z + cp1.z;

				offset += 3;
			}
		}
	}

	var material = new THREE.BAS.BasicAnimationMaterial({
		vertexColors: THREE.VertexColors,
		side: THREE.DoubleSide,
		uniforms: {
			uTime: {
				type: 'f',
				value: 0
			},
			uScale: {
				type: 'f',
				value: 1.0
			}
		},
		shaderFunctions: [
			THREE.BAS.ShaderChunk['quaternion_rotation'],
			THREE.BAS.ShaderChunk['cubic_bezier'],
			THREE.BAS.ShaderChunk['ease_out_cubic']
		],
		shaderParameters: [
			'uniform float uTime;',

			'attribute vec2 aDelayDuration;',
			'attribute vec3 aStartPosition;',
			'attribute vec3 aControlPosition0;',
			'attribute vec3 aControlPosition1;',
			'attribute vec3 aEndPosition;',
			'attribute vec4 aAxisAngle;'
		],
		shaderVertexInit: [
			'float tDelay = aDelayDuration.x;',
			'float tDuration = aDelayDuration.y;',
			'float tTime = clamp(uTime - tDelay, 0.0, tDuration);',
			//'float tProgress = ease(tTime, 0.0, 1.0, tDuration);',
			'float tProgress = tTime / tDuration;'
		],
		shaderTransformPosition: [
			'float scl = tProgress * 2.0 - 1.0;',
			'transformed *= (1.0 - scl * scl);',
			'transformed += cubicBezier(aStartPosition, aControlPosition0, aControlPosition1, aEndPosition, tProgress);'
		]
	}, {});

	THREE.Mesh.call(this, geometry, material);
	this.frustumCulled = false;
}
ExplosionAnimation.prototype = Object.create(THREE.Mesh.prototype);
ExplosionAnimation.prototype.constructor = ExplosionAnimation;
Object.defineProperty(ExplosionAnimation.prototype, 'time', {
	get: function() {
		return this.material.uniforms['uTime'].value;
	},
	set: function(v) {
		this.material.uniforms['uTime'].value = v;
	}
});

function ExplosionAnimationGeometry(prefab, count) {
	THREE.BAS.PrefabBufferGeometry.call(this, prefab, count);
}
ExplosionAnimationGeometry.prototype = Object.create(THREE.BAS.PrefabBufferGeometry.prototype);
ExplosionAnimationGeometry.prototype.constructor = ExplosionAnimationGeometry;
ExplosionAnimationGeometry.prototype.bufferPositions = function() {
	var positionBuffer = this.createAttribute('position', 3).array;

	var scaleMatrix = new THREE.Matrix4();
	var scale;
	var p = new THREE.Vector3();

	for (var i = 0, offset = 0; i < this.prefabCount; i++) {
		for (var j = 0; j < this.prefabVertexCount; j++, offset += 3) {
			var prefabVertex = this.prefabGeometry.vertices[j];

			scale = Math.random();
			scaleMatrix.identity().makeScale(scale, scale, scale);

			p.copy(prefabVertex);
			p.applyMatrix4(scaleMatrix);

			positionBuffer[offset] = p.x;
			positionBuffer[offset + 1] = p.y;
			positionBuffer[offset + 2] = p.z;
		}
	}
};

function THREERoot(params) {
	params = utils.extend({
		fov: 60,
		zNear: 10,
		zFar: 100000,

		createCameraControls: true
	}, params);

	this.renderer = new THREE.WebGLRenderer({
		antialias: params.antialias
	});
	this.renderer.setPixelRatio(Math.min(2, window.devicePixelRatio || 1));
	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;
	},
	randSign: function() {
		return Math.random() > 0.5 ? 1 : -1;
	},
	ease: function(ease, t, b, c, d) {
		return b + ease.getRatio(t / d) * c;
	},
	fibSpherePoint: (function() {
		var vec = {
			x: 0,
			y: 0,
			z: 0
		};
		var G = Math.PI * (3 - Math.sqrt(5));

		return function(i, n, radius) {
			var step = 2.0 / n;
			var r, phi;

			vec.y = i * step - 1 + (step * 0.5);
			r = Math.sqrt(1 - vec.y * vec.y);
			phi = i * G;
			vec.x = Math.cos(phi) * r;
			vec.z = Math.sin(phi) * r;

			radius = radius || 1;

			vec.x *= radius;
			vec.y *= radius;
			vec.z *= radius;

			return vec;
		}
	})(),
	spherePoint: (function() {
		return function(u, v) {
			u === undefined && (u = Math.random());
			v === undefined && (v = Math.random());

			var theta = 2 * Math.PI * u;
			var phi = Math.acos(2 * v - 1);

			var vec = {};
			vec.x = (Math.sin(phi) * Math.cos(theta));
			vec.y = (Math.sin(phi) * Math.sin(theta));
			vec.z = (Math.cos(phi));

			return vec;
		}
	})()
};

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

	function stop() {
		TweenMax.to(tween, 1, {
			timeScale: 0
		});
	}

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