javascript
/
three.js
镜像自地址 https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - loader - ImageBitmap</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 {
				font-family: Monospace;
				background-color: #000;
				color: #fff;
				margin: 0px;
				overflow: hidden;
			}
			#info {
				position: absolute;
				top: 10px;
				width: 100%;
				text-align: center;
				z-index: 100;
				display:block;
			}
			#info a, .button {
				color: #f00;
				font-weight: bold;
				text-decoration: underline;
				cursor: pointer
			}
		</style>
	</head>
	<body>
		<script src="../build/three.js"></script>
		<script src="js/Detector.js"></script>
		<div id="info">
			<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - Texture loader using ImageBitmap
		</div>

		<script>

			if ( ! Detector.webgl ) Detector.addGetWebGLMessage();

			var container;

			var camera, scene, renderer;
			var group, cubes;

			init();
			animate();

			function addImageBitmap() {

				new THREE.ImageBitmapLoader()
					.setOptions( { imageOrientation: 'none' } )
					.load( 'textures/planets/earth_atmos_2048.jpg?' + performance.now(), function ( imageBitmap ) {

						var texture = new THREE.CanvasTexture( imageBitmap );
						var material = new THREE.MeshBasicMaterial( { map: texture } );

						/* ImageBitmap should be disposed when done with it
						   Can't be done until it's actually uploaded to WebGLTexture */

						// imageBitmap.close();

						addCube( material );

					}, function( p ) {
						console.log( p );
					}, function( e ) {
						console.log( e );
					} );

			}

			function addImage() {

				new THREE.ImageLoader()
					.setCrossOrigin( '*' )
					.load( 'textures/planets/earth_atmos_2048.jpg?' + performance.now(), function ( image ) {
							var texture = new THREE.CanvasTexture( image );
							var material = new THREE.MeshBasicMaterial( { color: 0xff8888, map: texture } );
							addCube( material );
				});

			}

			var geometry = new THREE.BoxBufferGeometry( 1,1,1 );

			function addCube( material ) {

				var cube = new THREE.Mesh( geometry, material );
				cube.position.set( Math.random() * 2 - 1, Math.random() * 2 - 1, Math.random() * 2 - 1 );
				cube.rotation.set( Math.random() * 2 * Math.PI, Math.random() * 2 * Math.PI, Math.random() * 2 * Math.PI );
				cubes.add( cube );

			}

			function init() {

				container = document.createElement( 'div' );
				document.body.appendChild( container );

				// CAMERA

				camera = new THREE.PerspectiveCamera( 30, window.innerWidth / window.innerHeight, 1, 1500 );
				camera.position.set( 0, 4, 7 );
				camera.lookAt( new THREE.Vector3() );

				// SCENE

				scene = new THREE.Scene();

				//

				group = new THREE.Group();
				scene.add( group );

				group.add( new THREE.GridHelper( 4, 12 ) );

				cubes = new THREE.Group();
				group.add( cubes );

				// RENDERER

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( renderer.domElement );

				// TESTS

				setTimeout( addImage, 300 );
				setTimeout( addImage, 600 );
				setTimeout( addImage, 900 );
				setTimeout( addImageBitmap, 1300 );
				setTimeout( addImageBitmap, 1600 );
				setTimeout( addImageBitmap, 1900 );

				// EVENTS

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function animate() {

				group.rotation.y = performance.now() / 3000;

				renderer.render( scene, camera );

				requestAnimationFrame( animate );

			}

		</script>

	</body>
</html>