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190 lines
4.8 KiB
190 lines
4.8 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 - lensflares</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> - lensflares<br/>
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textures from <a href="http://www.ro.me" target="_blank" rel="noopener">ro.me</a><br/>
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fly with WASD/RF/QE + mouse
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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 { FlyControls } from 'three/addons/controls/FlyControls.js';
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import { Lensflare, LensflareElement } from 'three/addons/objects/Lensflare.js';
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let container, stats;
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let camera, scene, renderer;
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let controls;
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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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container = document.createElement( 'div' );
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document.body.appendChild( container );
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// camera
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camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 15000 );
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camera.position.z = 250;
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// scene
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scene = new THREE.Scene();
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scene.background = new THREE.Color().setHSL( 0.51, 0.4, 0.01 );
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scene.fog = new THREE.Fog( scene.background, 3500, 15000 );
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// world
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const s = 250;
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const geometry = new THREE.BoxGeometry( s, s, s );
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const material = new THREE.MeshPhongMaterial( { color: 0xffffff, specular: 0xffffff, shininess: 50 } );
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for ( let i = 0; i < 3000; i ++ ) {
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const mesh = new THREE.Mesh( geometry, material );
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mesh.position.x = 8000 * ( 2.0 * Math.random() - 1.0 );
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mesh.position.y = 8000 * ( 2.0 * Math.random() - 1.0 );
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mesh.position.z = 8000 * ( 2.0 * Math.random() - 1.0 );
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mesh.rotation.x = Math.random() * Math.PI;
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mesh.rotation.y = Math.random() * Math.PI;
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mesh.rotation.z = Math.random() * Math.PI;
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mesh.matrixAutoUpdate = false;
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mesh.updateMatrix();
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scene.add( mesh );
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}
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// lights
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const dirLight = new THREE.DirectionalLight( 0xffffff, 0.05 );
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dirLight.position.set( 0, - 1, 0 ).normalize();
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dirLight.color.setHSL( 0.1, 0.7, 0.5 );
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scene.add( dirLight );
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// lensflares
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const textureLoader = new THREE.TextureLoader();
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const textureFlare0 = textureLoader.load( 'textures/lensflare/lensflare0.png' );
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const textureFlare3 = textureLoader.load( 'textures/lensflare/lensflare3.png' );
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addLight( 0.55, 0.9, 0.5, 5000, 0, - 1000 );
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addLight( 0.08, 0.8, 0.5, 0, 0, - 1000 );
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addLight( 0.995, 0.5, 0.9, 5000, 5000, - 1000 );
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function addLight( h, s, l, x, y, z ) {
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const light = new THREE.PointLight( 0xffffff, 1.5, 2000 );
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light.color.setHSL( h, s, l );
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light.position.set( x, y, z );
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scene.add( light );
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const lensflare = new Lensflare();
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lensflare.addElement( new LensflareElement( textureFlare0, 700, 0, light.color ) );
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lensflare.addElement( new LensflareElement( textureFlare3, 60, 0.6 ) );
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lensflare.addElement( new LensflareElement( textureFlare3, 70, 0.7 ) );
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lensflare.addElement( new LensflareElement( textureFlare3, 120, 0.9 ) );
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lensflare.addElement( new LensflareElement( textureFlare3, 70, 1 ) );
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light.add( lensflare );
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}
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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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renderer.outputEncoding = THREE.sRGBEncoding;
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container.appendChild( renderer.domElement );
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//
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controls = new FlyControls( camera, renderer.domElement );
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controls.movementSpeed = 2500;
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controls.domElement = container;
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controls.rollSpeed = Math.PI / 6;
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controls.autoForward = false;
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controls.dragToLook = false;
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// stats
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stats = new Stats();
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container.appendChild( stats.dom );
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// events
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window.addEventListener( 'resize', onWindowResize );
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}
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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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//
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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 delta = clock.getDelta();
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controls.update( delta );
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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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