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webgl_animation_skinning.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - animation - skinning</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: #000;
font-family:Monospace;
font-size:13px;
text-align:center;
background-color: #000;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a {
color: #f00;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info">
<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> webgl - animation - skinning -
buffalo model from <a href="http://ro.me">ro.me</a><br/>
click to start animation
</div>
<script src="../build/Three.js"></script>
<script src="js/Detector.js"></script>
<script src="js/Stats.js"></script>
<script>
if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
window.onload = init;
var container, stats;
var camera, scene, renderer;
var mesh, light;
var mouseX = 0, mouseY = 0;
var windowHalfX = window.innerWidth / 2;
var windowHalfY = window.innerHeight / 2;
var animations = [];
var buffalos = [];
var offset = [];
var floor, dz = 0, dstep = -10, playback = false;
var clock = new THREE.Clock();
function init() {
container = document.getElementById( 'container' );
camera = new THREE.PerspectiveCamera( 25, window.innerWidth / window.innerHeight, 1, 10000 );
camera.position.set( 0, 185, 2500 );
scene = new THREE.Scene();
scene.fog = new THREE.FogExp2( 0xffffff, 0.0003 );
scene.fog.color.setHSV( 0.1, 0.10, 1 );
light = new THREE.DirectionalLight( 0xffffff, 1.5 );
light.position.set( 0, 1, 1 ).normalize();
scene.add( light );
var planeSimple = new THREE.PlaneGeometry( 200, 300 );
var planeTesselated = new THREE.PlaneGeometry( 100, 300, 25, 40 );
var matWire = new THREE.MeshBasicMaterial( { color :0x110000, wireframe: true, wireframeLinewidth: 2 } );
var matSolid = new THREE.MeshBasicMaterial( { color :0x330000 } );
matSolid.color.setHSV( 0.1, 0.75, 1 );
floor = new THREE.Mesh( planeSimple, matSolid );
floor.position.y = -10;
floor.rotation.x = - Math.PI / 2;
floor.scale.set( 25, 25, 25 );
scene.add( floor );
floor = new THREE.Mesh( planeTesselated, matWire );
floor.rotation.x = - Math.PI / 2;
floor.scale.set( 25, 25, 25 );
scene.add( floor );
renderer = new THREE.WebGLRenderer( { clearColor: 0xffffff, clearAlpha: 1, antialias: true } );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setClearColor( scene.fog.color, 1 );
renderer.sortObjects = false;
container.appendChild( renderer.domElement );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
container.appendChild( stats.domElement );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'click', startAnimation, false );
var loader = new THREE.JSONLoader();
loader.load( "obj/buffalo/buffalo.js", createScene );
//
window.addEventListener( 'resize', onWindowResize, false );
//
loop();
}
function onWindowResize() {
windowHalfX = window.innerWidth / 2;
windowHalfY = window.innerHeight / 2;
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
function createScene( geometry ) {
buffalos = [];
animations = [];
var x, y,
buffalo, animation,
gridx = 25, gridz = 15,
sepx = 150, sepz = 300;
var material = new THREE.MeshFaceMaterial();
var originalMaterial = geometry.materials[ 0 ];
originalMaterial.skinning = true;
originalMaterial.transparent = true;
originalMaterial.alphaTest = 0.75;
THREE.AnimationHandler.add( geometry.animation );
for( x = 0; x < gridx; x ++ ) {
for( z = 0; z < gridz; z ++ ) {
buffalo = new THREE.SkinnedMesh( geometry, material, false );
buffalo.position.x = - ( gridx - 1 ) * sepx * 0.5 + x * sepx + Math.random() * 0.5 * sepx;
buffalo.position.z = - ( gridz - 1 ) * sepz * 0.5 + z * sepz + Math.random() * 0.5 * sepz - 500;
buffalo.position.y = buffalo.boundRadius * 0.5;
buffalo.rotation.y = 0.2 - Math.random() * 0.4;
scene.add( buffalo );
buffalos.push( buffalo );
animation = new THREE.Animation( buffalo, "take_001" );
animations.push( animation );
offset.push( Math.random() );
}
}
}
function startAnimation() {
for( var i = 0; i < animations.length; i ++ ) {
animations[ i ].offset = 0.05 * Math.random();
animations[ i ].play();
}
dz = dstep;
playback = true;
}
function onDocumentMouseMove( event ) {
mouseX = ( event.clientX - windowHalfX );
mouseY = ( event.clientY - windowHalfY );
}
function loop() {
requestAnimationFrame( loop, renderer.domElement );
var delta = clock.getDelta();
THREE.AnimationHandler.update( delta );
camera.position.x += ( mouseX - camera.position.x ) * 0.05;
camera.lookAt( scene.position );
if ( buffalos && playback ) {
var elapsed = clock.getElapsedTime();
camera.position.z += 2 * Math.sin( elapsed );
for( i = 0; i < buffalos.length; i++ ) {
buffalos[ i ].position.z += 2 * Math.sin( elapsed + offset[ i ] );
}
}
floor.position.z += dz;
if( floor.position.z < -500 ) floor.position.z = 0;
renderer.render( scene, camera );
stats.update();
}
</script>
</body>
</html>