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123 lines
3.7 KiB
123 lines
3.7 KiB
2 years ago
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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 - lights - rect area light</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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<link type="text/css" rel="stylesheet" href="main.css">
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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - THREE.RectAreaLight<br/>
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by <a href="http://github.com/abelnation" target="_blank" rel="noopener">abelnation</a>
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</div>
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<!-- Import maps polyfill -->
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<!-- Remove this when import maps will be widely supported -->
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<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.module.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import Stats from 'three/addons/libs/stats.module.js';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import { RectAreaLightHelper } from 'three/addons/helpers/RectAreaLightHelper.js';
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import { RectAreaLightUniformsLib } from 'three/addons/lights/RectAreaLightUniformsLib.js';
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let renderer, scene, camera;
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let stats;
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init();
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function init() {
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.setAnimationLoop( animation );
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renderer.outputEncoding = THREE.sRGBEncoding;
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document.body.appendChild( renderer.domElement );
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camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.set( 0, 5, - 15 );
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scene = new THREE.Scene();
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RectAreaLightUniformsLib.init();
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const rectLight1 = new THREE.RectAreaLight( 0xff0000, 5, 4, 10 );
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rectLight1.position.set( - 5, 5, 5 );
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scene.add( rectLight1 );
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const rectLight2 = new THREE.RectAreaLight( 0x00ff00, 5, 4, 10 );
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rectLight2.position.set( 0, 5, 5 );
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scene.add( rectLight2 );
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const rectLight3 = new THREE.RectAreaLight( 0x0000ff, 5, 4, 10 );
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rectLight3.position.set( 5, 5, 5 );
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scene.add( rectLight3 );
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scene.add( new RectAreaLightHelper( rectLight1 ) );
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scene.add( new RectAreaLightHelper( rectLight2 ) );
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scene.add( new RectAreaLightHelper( rectLight3 ) );
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const geoFloor = new THREE.BoxGeometry( 2000, 0.1, 2000 );
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const matStdFloor = new THREE.MeshStandardMaterial( { color: 0x808080, roughness: 0.1, metalness: 0 } );
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const mshStdFloor = new THREE.Mesh( geoFloor, matStdFloor );
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scene.add( mshStdFloor );
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const geoKnot = new THREE.TorusKnotGeometry( 1.5, 0.5, 200, 16 );
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const matKnot = new THREE.MeshStandardMaterial( { color: 0xffffff, roughness: 0, metalness: 0 } );
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const meshKnot = new THREE.Mesh( geoKnot, matKnot );
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meshKnot.name = 'meshKnot';
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meshKnot.position.set( 0, 5, 0 );
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scene.add( meshKnot );
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const controls = new OrbitControls( camera, renderer.domElement );
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controls.target.copy( meshKnot.position );
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controls.update();
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//
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window.addEventListener( 'resize', onWindowResize );
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stats = new Stats();
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document.body.appendChild( stats.dom );
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}
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function onWindowResize() {
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renderer.setSize( window.innerWidth, window.innerHeight );
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camera.aspect = ( window.innerWidth / window.innerHeight );
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camera.updateProjectionMatrix();
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}
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function animation( time ) {
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const mesh = scene.getObjectByName( 'meshKnot' );
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mesh.rotation.y = time / 1000;
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renderer.render( scene, camera );
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stats.update();
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}
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</script>
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</body>
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</html>
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