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webgl-modifier-tessellation.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - modifier - tessellation</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
body {
color: #ffffff;
font-family:Monospace;
font-size:13px;
text-align:center;
font-weight: bold;
background-color: #000000;
margin: 0px;
}
#info {
color: #fff;
position: absolute;
top: 0px; width: 100%;
padding: 5px;
z-index:100;
}
a { color: red }
</style>
</head>
<body>
<div id="container"></div>
<script src="js/three.js"></script>
<script src="js/ExplodeModifier.js"></script>
<script src="js/TessellateModifier.js"></script>
<script type="x-shader/x-vertex" id="vertexshader">
uniform float amplitude;
uniform float gTime;
attribute vec3 customColor;
attribute vec3 displacement;
varying vec3 vNormal;
varying vec3 vColor;
void main() {
vNormal = normal;
vColor = customColor;
vec3 newPosition = position + normal * amplitude * displacement;
gl_Position = projectionMatrix * modelViewMatrix * vec4( newPosition, 1.0 );
}
</script>
<script type="x-shader/x-fragment" id="fragmentshader">
varying vec3 vNormal;
varying vec3 vColor;
uniform float amplitude;
uniform float gTime;
void main() {
const float ambient = 0.4;
vec3 light = vec3( 1.0 );
light = normalize( light );
float directional = max( dot( vNormal, light ), 0.0 );
gl_FragColor = vec4( mix(vec3(1.0),vColor, amplitude*(0.5+0.5*sin(gTime*vColor.r*0.01+vColor.b*8.47))), 1.0 );
}
</script>
<script>
var renderer, scene, camera;
var time = 500.0;
var mesh, uniforms;
var WIDTH = window.innerWidth,
HEIGHT = window.innerHeight;
var loader = new THREE.FontLoader();
loader.load( 'WebAssets/fonts/SharpSansNo1Medium_Regular.json', function ( font ) {
init( font );
animate();
} );
function init( font ) {
camera = new THREE.PerspectiveCamera( 10, WIDTH / HEIGHT, 1, 10000 );
camera.position.set( -0, 0, 1600 );
// controls = new THREE.TrackballControls( camera );
scene = new THREE.Scene();
//
var geometry = new THREE.TextGeometry( "Pretty Pictures", {
font: font,
size: 40,
height: 5,
curveSegments: 7,
bevelThickness: 2,
bevelSize: 1,
bevelEnabled: true
});
geometry.center();
var tessellateModifier = new THREE.TessellateModifier( 12 );
for ( var i = 0; i < 6; i ++ ) {
tessellateModifier.modify( geometry );
}
var explodeModifier = new THREE.ExplodeModifier();
explodeModifier.modify( geometry );
var numFaces = geometry.faces.length;
//
geometry = new THREE.BufferGeometry().fromGeometry( geometry );
var colors = new Float32Array( numFaces * 3 * 3 );
var displacement = new Float32Array( numFaces * 3 * 3 );
var color = new THREE.Color();
for ( var f = 0; f < numFaces; f ++ ) {
var index = 9 * f;
var h = 0.6 + 0.2* Math.random();
var s = 0.4 + 0.3 * Math.random();
var l = 0.7 + 0.2 * Math.random();
color.setHSL( h, s, l );
var d = 10 * ( 0.5 - Math.random() );
for ( var i = 0; i < 3; i ++ ) {
colors[ index + ( 3 * i ) ] = color.r;
colors[ index + ( 3 * i ) + 1 ] = color.g;
colors[ index + ( 3 * i ) + 2 ] = color.b;
displacement[ index + ( 3 * i ) ] = d;
displacement[ index + ( 3 * i ) + 1 ] = d;
displacement[ index + ( 3 * i ) + 2 ] = d;
}
}
geometry.addAttribute( 'customColor', new THREE.BufferAttribute( colors, 3 ) );
geometry.addAttribute( 'displacement', new THREE.BufferAttribute( displacement, 3 ) );
//
uniforms = {
amplitude: { value: 0.0 },
gTime: { value: 0.0 }
};
var shaderMaterial = new THREE.ShaderMaterial( {
uniforms: uniforms,
vertexShader: document.getElementById( 'vertexshader' ).textContent,
fragmentShader: document.getElementById( 'fragmentshader' ).textContent,
transparent: true,
opacity: 0.2
});
//
mesh = new THREE.Mesh( geometry, shaderMaterial );
mesh.scale.x = window.innerWidth/1500.0;
mesh.scale.y = window.innerWidth/1500.0;
mesh.scale.z = window.innerWidth/1500.0;
scene.add( mesh );
renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setClearColor( 0x000000 );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( WIDTH, HEIGHT );
var container = document.getElementById( 'container' );
container.appendChild( renderer.domElement );
//
window.addEventListener( 'resize', onWindowResize, false );
}
function onWindowResize() {
camera.aspect = window.innerWidth / (window.innerHeight);
camera.updateProjectionMatrix();
mesh.scale.x = window.innerWidth/1500.0;
mesh.scale.y = window.innerWidth/1500.0;
mesh.scale.z = window.innerWidth/1500.0;
renderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
requestAnimationFrame( animate );
render();
}
function render() {
time += 0.008;
mesh.rotation.x = 0.001*document.body.scrollTop;
uniforms.amplitude.value = 0.08*document.body.scrollTop; //1.0 + Math.sin( time * 0.5 );
uniforms.gTime.value = time;
// controls.update();
renderer.render( scene, camera );
}
</script>
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HELLLOOOO
</body>
</html>