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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - postprocessing - unreal bloom</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>
- #info > * {
- max-width: 650px;
- margin-left: auto;
- margin-right: auto;
- }
- </style>
- </head>
- <body>
- <div id="container"></div>
- <div id="info">
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - Bloom pass by <a href="http://eduperiment.com" target="_blank" rel="noopener">Prashant Sharma</a> and <a href="https://clara.io" target="_blank" rel="noopener">Ben Houston</a>
- <br/>
- Model: <a href="https://blog.sketchfab.com/art-spotlight-primary-ion-drive/" target="_blank" rel="noopener">Primary Ion Drive</a> by
- <a href="http://mjmurdock.com/" target="_blank" rel="noopener">Mike Murdock</a>, CC Attribution.
- </div>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.module.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- import Stats from 'three/addons/libs/stats.module.js';
- import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
- import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
- import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
- import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
- import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
- import { UnrealBloomPass } from 'three/addons/postprocessing/UnrealBloomPass.js';
- import { OutputPass } from 'three/addons/postprocessing/OutputPass.js';
- let camera, stats;
- let composer, renderer, mixer, clock;
- const params = {
- threshold: 0,
- strength: 1,
- radius: 0,
- exposure: 1
- };
- init();
- async function init() {
- const container = document.getElementById( 'container' );
- clock = new THREE.Clock();
- const scene = new THREE.Scene();
- camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 100 );
- camera.position.set( - 5, 2.5, - 3.5 );
- scene.add( camera );
- scene.add( new THREE.AmbientLight( 0xcccccc ) );
- const pointLight = new THREE.PointLight( 0xffffff, 100 );
- camera.add( pointLight );
- const loader = new GLTFLoader();
- const gltf = await loader.loadAsync( 'models/gltf/PrimaryIonDrive.glb' );
- const model = gltf.scene;
- scene.add( model );
- mixer = new THREE.AnimationMixer( model );
- const clip = gltf.animations[ 0 ];
- mixer.clipAction( clip.optimize() ).play();
- //
- renderer = new THREE.WebGLRenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- renderer.toneMapping = THREE.ReinhardToneMapping;
- container.appendChild( renderer.domElement );
- //
- const renderScene = new RenderPass( scene, camera );
- const bloomPass = new UnrealBloomPass( new THREE.Vector2( window.innerWidth, window.innerHeight ), 1.5, 0.4, 0.85 );
- bloomPass.threshold = params.threshold;
- bloomPass.strength = params.strength;
- bloomPass.radius = params.radius;
- const outputPass = new OutputPass();
- composer = new EffectComposer( renderer );
- composer.addPass( renderScene );
- composer.addPass( bloomPass );
- composer.addPass( outputPass );
- //
- stats = new Stats();
- container.appendChild( stats.dom );
- //
- const controls = new OrbitControls( camera, renderer.domElement );
- controls.maxPolarAngle = Math.PI * 0.5;
- controls.minDistance = 3;
- controls.maxDistance = 8;
- //
- const gui = new GUI();
- const bloomFolder = gui.addFolder( 'bloom' );
- bloomFolder.add( params, 'threshold', 0.0, 1.0 ).onChange( function ( value ) {
- bloomPass.threshold = Number( value );
- } );
- bloomFolder.add( params, 'strength', 0.0, 3.0 ).onChange( function ( value ) {
- bloomPass.strength = Number( value );
- } );
- gui.add( params, 'radius', 0.0, 1.0 ).step( 0.01 ).onChange( function ( value ) {
- bloomPass.radius = Number( value );
- } );
- const toneMappingFolder = gui.addFolder( 'tone mapping' );
- toneMappingFolder.add( params, 'exposure', 0.1, 2 ).onChange( function ( value ) {
- renderer.toneMappingExposure = Math.pow( value, 4.0 );
- } );
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- const width = window.innerWidth;
- const height = window.innerHeight;
- camera.aspect = width / height;
- camera.updateProjectionMatrix();
- renderer.setSize( width, height );
- composer.setSize( width, height );
- }
- function animate() {
- const delta = clock.getDelta();
- mixer.update( delta );
- stats.update();
- composer.render();
- }
- </script>
- </body>
- </html>
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