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webgl_geometry_dynamic.html
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<!DOCTYPE HTML>
<html lang="en">
<head>
<title>three.js webgl - geometry - dynamic</title>
<meta charset="utf-8">
<style type="text/css">
body {
color: #61443e;
font-family:Monospace;
font-size:13px;
text-align:center;
background-color: #aaccff;
margin: 0px;
overflow: hidden;
}
#info {
color: #ffffff;
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
a {
color: yellow;
}
#oldie {
background:rgb(0,0,50) !important;
color:#fff !important;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - dynamic geometry demo - webgl<br />(left click: forward, right click: backward)</div>
<script type="text/javascript" src="../build/Three.js"></script>
<script type="text/javascript" src="js/Detector.js"></script>
<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
<script type="text/javascript" src="js/Stats.js"></script>
<script type="text/javascript">
if ( ! Detector.webgl ) {
Detector.addGetWebGLMessage();
document.getElementById( 'container' ).innerHTML = "";
}
var container, stats;
var camera, scene, renderer;
var mesh, texture,geometry, material;
var worldWidth = 128, worldDepth = 128,
worldHalfWidth = worldWidth / 2, worldHalfDepth = worldDepth / 2;
init();
animate();
function init() {
container = document.getElementById( 'container' );
camera = new THREE.FirstPersonCamera( {
fov: 60, aspect: window.innerWidth / window.innerHeight, near: 1, far: 20000,
movementSpeed: 500, lookSpeed: 0.1, noFly: false, lookVertical: true
} );
camera.target.position.z = - 100;
scene = new THREE.Scene();
scene.fog = new THREE.FogExp2( 0xaaccff, 0.0007 );
//var light = new THREE.PointLight( 0xffffff, 2 );
//light.position.y = 500;
//scene.addLight( light );
camera.position.y = 200;
camera.target.position.y = camera.position.y;
geometry = new THREE.PlaneGeometry( 20000, 20000, worldWidth - 1, worldDepth - 1 );
geometry.dynamic = true;
var i, j, il, jl;
for ( i = 0, il = geometry.vertices.length; i < il; i ++ ) {
geometry.vertices[ i ].position.z = 35 * Math.sin( i/2 );
}
//console.log( "triangles: " + geometry.faces.length * 2 + " faces: " + geometry.faces.length + " vertices: " + geometry.vertices.length );
geometry.computeFaceNormals();
geometry.computeVertexNormals();
var texture = THREE.ImageUtils.loadTexture( "textures/water.jpg" );
texture.wrapS = texture.wrapT = THREE.RepeatWrapping;
texture.repeat.set( 5, 5 );
material = new THREE.MeshBasicMaterial( { color:0x0044ff, opacity:1, map: texture } );
mesh = new THREE.Mesh( geometry, material );
mesh.rotation.x = - 90 * Math.PI / 180;
scene.addObject( mesh );
renderer = new THREE.WebGLRenderer( { clearColor:0xaaccff, clearAlpha: 1 } );
renderer.setSize( window.innerWidth, window.innerHeight );
container.innerHTML = "";
container.appendChild( renderer.domElement );
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
container.appendChild( stats.domElement );
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
var time = new Date().getTime() * 0.01;
for ( var i = 0, l = geometry.vertices.length; i < l; i ++ ) {
geometry.vertices[ i ].position.z = 35 * Math.sin( i/5 + (time + i)/7 );
}
//geometry.computeFaceNormals();
//geometry.computeVertexNormals();
mesh.geometry.__dirtyVertices = true;
//mesh.geometry.__dirtyNormals = true;
renderer.render(scene, camera);
}
</script>
</body>
</html>