mirror of
https://github.com/Doodle3D/Doodle3D-Slicer.git
synced 2024-11-14 10:17:56 +01:00
147 lines
3.1 KiB
HTML
147 lines
3.1 KiB
HTML
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<!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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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<style>
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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 src="../build/three.min.js"></script>
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<script src="js/Detector.js"></script>
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<script>
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if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
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var camera, scene, renderer;
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init();
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animate();
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function init() {
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camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.set( 0, 75, 100 );
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scene = new THREE.Scene();
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var geometry = new THREE.PlaneBufferGeometry( 100, 100 );
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var texture = new THREE.Texture( generateTexture() );
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texture.needsUpdate = true;
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for ( var i = 0; i < 15; i ++ ) {
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var material = new THREE.MeshBasicMaterial( {
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color: new THREE.Color().setHSL( 0.3, 0.75, ( i / 15 ) * 0.4 + 0.1 ),
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map: texture,
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depthTest: false,
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depthWrite: false,
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transparent: true
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} );
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var mesh = new THREE.Mesh( geometry, material );
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mesh.position.y = i * 0.25;
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mesh.rotation.x = - Math.PI / 2;
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scene.add( mesh );
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}
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scene.children.reverse();
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renderer = new THREE.WebGLRenderer();
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renderer.setClearColor( 0x003300 );
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renderer.setPixelRatio( window.devicePixelRatio );
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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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window.addEventListener( 'resize', onWindowResize, false );
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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function generateTexture() {
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var canvas = document.createElement( 'canvas' );
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canvas.width = 512;
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canvas.height = 512;
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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 = 'hsl(0,0%,' + ( Math.random() * 50 + 50 ) + '%)';
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context.beginPath();
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context.arc( Math.random() * canvas.width, Math.random() * canvas.height, Math.random() + 0.15, 0, Math.PI * 2, true );
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context.fill();
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}
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context.globalAlpha = 0.075;
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context.globalCompositeOperation = 'lighter';
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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 = Date.now() / 6000;
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camera.position.x = 80 * Math.cos( time );
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camera.position.z = 80 * Math.sin( time );
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camera.lookAt( scene.position );
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for ( var i = 0, l = scene.children.length; i < l; i ++ ) {
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var mesh = scene.children[ i ];
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mesh.position.x = Math.sin( time * 4 ) * i * i * 0.005;
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mesh.position.z = Math.cos( time * 6 ) * i * i * 0.005;
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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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