javascript
/
three.js
oglindă de https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js white furnace test</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<link type="text/css" rel="stylesheet" href="main.css">
		<style>
			body {
				color: #444;
			}
			a {
				color: #44f;
			}
		</style>

	</head>
	<body>

		<div id="container">
			<div id="info">
				<a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> -
				<a href="https://google.github.io/filament/Filament.md.html#toc4.7.2" target="_blank" rel="noopener">White Furnace</a> energy conservation test by <a href="https://jsantell.com/" target="_blank" rel="noopener">Jordan Santell</a>
			</div>
		</div>

		<script type="module">

			import * as THREE from '../build/three.module.js';

			import { PMREMGenerator } from './jsm/pmrem/PMREMGenerator.js';
			import { PMREMCubeUVPacker } from './jsm/pmrem/PMREMCubeUVPacker.js';

			var scene, camera, renderer, envMap, radianceMap;
			var right = 8;

			function init() {

				var width = window.innerWidth;
				var height = window.innerHeight;
				var aspect = width / height;

				// renderer

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setSize( width, height );
				renderer.setPixelRatio( window.devicePixelRatio );
				document.body.appendChild( renderer.domElement );

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

				document.body.addEventListener( 'mouseover', function () {

					scene.traverse( function ( child ) {

						if ( child.isMesh ) child.material.color.setHex( 0xaaaaff );

					} );

				} );

				document.body.addEventListener( 'mouseout', function () {

					scene.traverse( function ( child ) {

						if ( child.isMesh ) child.material.color.setHex( 0xffffff );

					} );

				} );

				// scene

				scene = new THREE.Scene();

				// camera

				camera = new THREE.OrthographicCamera( - right, right, right / aspect, - right / aspect, 1, 30 );
				camera.position.set( 0, 0, 9 );

			}

			function createObjects() {

				var geometry = new THREE.SphereBufferGeometry( 0.4, 32, 32 );

				for ( var x = 0; x <= 10; x ++ ) {

					for ( var y = 0; y <= 10; y ++ ) {

						var material = new THREE.MeshPhysicalMaterial( {
							roughness: x / 10,
							metalness: y / 10,
							color: 0xffffff,
							envMap: radianceMap,
							envMapIntensity: 1,
							reflectivity: 1
						} );

						var mesh = new THREE.Mesh( geometry, material );
						mesh.position.x = x - 5;
						mesh.position.y = 5 - y;
						scene.add( mesh );

					}

				}

			}

			function createEnvironment() {

				var envScene = new THREE.Scene();
				envScene.background = new THREE.Color( 0xcccccc );

				var cubeCamera = new THREE.CubeCamera( 1, 100, 256, 256 );
				cubeCamera.update( renderer, envScene );

				envMap = cubeCamera.renderTarget.texture;

				scene.background = envScene.background;

			}

			function getRadiance() {

				return new Promise( function ( resolve ) {

					var pmremGenerator = new PMREMGenerator( envMap );
					pmremGenerator.update( renderer );

					var pmremCubeUVPacker = new PMREMCubeUVPacker( pmremGenerator.cubeLods );
					pmremCubeUVPacker.update( renderer );

					var cubeRenderTarget = pmremCubeUVPacker.CubeUVRenderTarget;

					pmremGenerator.dispose();
					pmremCubeUVPacker.dispose();

					radianceMap = cubeRenderTarget.texture;

					resolve();

				} );

			}

			function onResize() {

				var aspect = window.innerWidth / window.innerHeight;
				camera.top = right / aspect;
				camera.bottom = - camera.top;
				camera.updateProjectionMatrix();
				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function animate() {

				renderer.setAnimationLoop( render );

			}

			function render() {

				renderer.render( scene, camera );

			}

			Promise.resolve()
				.then( init )
				.then( createEnvironment )
				.then( getRadiance )
				.then( createObjects )
				.then( animate );

		</script>
	</body>
</html>