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148 lines
4.0 KiB
148 lines
4.0 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - lights - point lights</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> - point lights WebGL demo.<br />
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Walt Disney head by <a href="http://web.archive.org/web/20120903131400/http://davidoreilly.com/post/18087489343/disneyhead" target="_blank" rel="noopener">David OReilly</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 { OBJLoader } from 'three/addons/loaders/OBJLoader.js';
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let camera, scene, renderer,
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light1, light2, light3, light4,
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object, stats;
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const clock = new THREE.Clock();
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init();
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animate();
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function init() {
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camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.z = 100;
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scene = new THREE.Scene();
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//model
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const loader = new OBJLoader();
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loader.load( 'models/obj/walt/WaltHead.obj', function ( obj ) {
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object = obj;
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object.scale.multiplyScalar( 0.8 );
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object.position.y = - 30;
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scene.add( object );
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} );
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const sphere = new THREE.SphereGeometry( 0.5, 16, 8 );
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//lights
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light1 = new THREE.PointLight( 0xff0040, 2, 50 );
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light1.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: 0xff0040 } ) ) );
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scene.add( light1 );
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light2 = new THREE.PointLight( 0x0040ff, 2, 50 );
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light2.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: 0x0040ff } ) ) );
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scene.add( light2 );
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light3 = new THREE.PointLight( 0x80ff80, 2, 50 );
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light3.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: 0x80ff80 } ) ) );
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scene.add( light3 );
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light4 = new THREE.PointLight( 0xffaa00, 2, 50 );
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light4.add( new THREE.Mesh( sphere, new THREE.MeshBasicMaterial( { color: 0xffaa00 } ) ) );
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scene.add( light4 );
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//renderer
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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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document.body.appendChild( renderer.domElement );
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//stats
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stats = new Stats();
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document.body.appendChild( stats.dom );
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window.addEventListener( 'resize', onWindowResize );
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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 animate() {
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requestAnimationFrame( animate );
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render();
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stats.update();
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}
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function render() {
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const time = Date.now() * 0.0005;
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const delta = clock.getDelta();
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if ( object ) object.rotation.y -= 0.5 * delta;
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light1.position.x = Math.sin( time * 0.7 ) * 30;
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light1.position.y = Math.cos( time * 0.5 ) * 40;
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light1.position.z = Math.cos( time * 0.3 ) * 30;
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light2.position.x = Math.cos( time * 0.3 ) * 30;
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light2.position.y = Math.sin( time * 0.5 ) * 40;
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light2.position.z = Math.sin( time * 0.7 ) * 30;
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light3.position.x = Math.sin( time * 0.7 ) * 30;
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light3.position.y = Math.cos( time * 0.3 ) * 40;
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light3.position.z = Math.sin( time * 0.5 ) * 30;
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light4.position.x = Math.sin( time * 0.3 ) * 30;
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light4.position.y = Math.cos( time * 0.7 ) * 40;
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light4.position.z = Math.sin( time * 0.5 ) * 30;
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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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