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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">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<style>
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 src="../build/Three.js"></script>
<script src="js/Detector.js"></script>
<script src="js/RequestAnimationFrame.js"></script>
<script src="js/Stats.js"></script>
<script>
if ( ! Detector.webgl ) {
Detector.addGetWebGLMessage();
document.getElementById( 'container' ).innerHTML = "";
}
var container, stats;
var camera, controls, scene, renderer;
var mesh, texture, geometry, material;
var worldWidth = 128, worldDepth = 128,
worldHalfWidth = worldWidth / 2, worldHalfDepth = worldDepth / 2;
var clock = new THREE.Clock();
init();
animate();
function init() {
container = document.getElementById( 'container' );
camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 20000 );
camera.position.y = 200;
controls = new THREE.FirstPersonControls( camera );
controls.movementSpeed = 500;
controls.lookSpeed = 0.1
scene = new THREE.Scene();
scene.fog = new THREE.FogExp2( 0xaaccff, 0.0007 );
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, map: texture } );
mesh = new THREE.Mesh( geometry, material );
mesh.rotation.x = - 90 * Math.PI / 180;
scene.add( 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 delta = clock.getDelta(),
time = clock.getElapsedTime() * 10;
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;
controls.update( delta );
renderer.render( scene, camera );
}
</script>
</body>
</html>