mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 04:56:01 +10:00
alteredq
3e2f4f7cc5
Also got uqbiquity working and fixed ugly globals bug in WebGLRenderer. Again we missed it because of consistent naming ;)
136 lines
3.1 KiB
HTML
136 lines
3.1 KiB
HTML
<!DOCTYPE HTML>
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<html lang="en">
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<head>
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<title>three.js webgl - materials - grass</title>
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<meta charset="utf-8">
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<style type="text/css">
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body {
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background:#030;
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color:#fff;
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padding:0;
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margin:0;
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overflow:hidden;
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font-family:georgia;
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text-align:center;
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}
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</style>
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</head>
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<body>
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<script type="text/javascript" src="../build/Three.js"></script>
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<script type="text/javascript" src="js/Detector.js"></script>
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<script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
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<script type="text/javascript">
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if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
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var camera, scene, renderer,
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mesh, levels = [];
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init();
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animate();
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function init() {
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camera = new THREE.Camera( 60, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.y = 75;
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camera.position.z = 100;
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scene = new THREE.Scene();
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var geometry = new Plane( 100, 100 );
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var texture = generateTextureBase();
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texture.needsUpdate = true;
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for ( var i = 0; i < 10; i ++ ) {
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mesh = levels[ i ] = new THREE.Mesh( geometry, new THREE.MeshBasicMaterial( { map: new THREE.Texture( generateTextureLevel( texture ), new THREE.UVMapping(), THREE.ClampToEdgeWrapping, THREE.ClampToEdgeWrapping ) } ) );
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mesh.materials[0].map.needsUpdate = true;
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mesh.rotation.x = - 90 * ( Math.PI / 180 );
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mesh.position.y = i * 0.5;
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scene.addObject( mesh );
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}
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renderer = new THREE.WebGLRenderer();
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renderer.sortObjects = false;
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renderer.setSize( window.innerWidth, window.innerHeight );
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document.body.appendChild( renderer.domElement );
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}
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function generateTextureBase() {
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var canvas = document.createElement( 'canvas' );
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canvas.width = 1024;
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canvas.height = 1024;
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var context = canvas.getContext( '2d' );
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for ( var i = 0; i < 20000; i ++ ) {
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context.fillStyle = 'rgba(0,' + Math.floor( Math.random() * 64 + 32 ) + ',16,1)';
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context.beginPath();
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context.arc( Math.random() * canvas.width, Math.random() * canvas.height, Math.random() * 3 + 1, 0, Math.PI * 2, true );
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context.closePath();
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context.fill();
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}
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context.globalAlpha = 0.1;
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context.globalCompositeOperation = 'lighter';
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return canvas;
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}
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function generateTextureLevel( texture ) {
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texture.getContext( '2d' ).drawImage( texture, 0, 0 );
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var canvas = document.createElement( 'canvas' );
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canvas.width = texture.width;
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canvas.height = texture.height;
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canvas.getContext( '2d' ).drawImage( texture, 0, 0 );
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return canvas;
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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render();
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}
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function render() {
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var time = new Date().getTime() / 6000;
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camera.position.x = 100 * Math.cos( time );
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camera.position.z = 100 * Math.sin( time );
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for ( var i = 0, l = levels.length; i < l; i ++ ) {
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mesh = levels[ i ];
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mesh.position.x = Math.sin( time * 4 ) * i * i * 0.02;
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mesh.position.z = Math.cos( time * 6 ) * i * i * 0.02;
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}
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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