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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - tone mapping</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">
- </head>
- <body>
- <div id="info">
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - Tone Mapping<br />
- Battle Damaged Sci-fi Helmet by
- <a href="https://sketchfab.com/theblueturtle_" target="_blank" rel="noopener">theblueturtle_</a><br />
- <a href="https://hdrihaven.com/hdri/?h=venice_sunset" target="_blank" rel="noopener">Venice Sunset</a> from <a href="https://hdrihaven.com/" target="_blank" rel="noopener">HDRI Haven</a>
- </div>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.module.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- 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 { RGBELoader } from 'three/addons/loaders/RGBELoader.js';
- let mesh, renderer, scene, camera, controls;
- let gui, guiExposure = null;
- const params = {
- exposure: 1.0,
- toneMapping: 'AgX',
- blurriness: 0.3,
- intensity: 1.0,
- };
- const toneMappingOptions = {
- None: THREE.NoToneMapping,
- Linear: THREE.LinearToneMapping,
- Reinhard: THREE.ReinhardToneMapping,
- Cineon: THREE.CineonToneMapping,
- ACESFilmic: THREE.ACESFilmicToneMapping,
- AgX: THREE.AgXToneMapping,
- Neutral: THREE.NeutralToneMapping,
- Custom: THREE.CustomToneMapping
- };
- init().catch( function ( err ) {
- console.error( err );
- } );
- async function init() {
- renderer = new THREE.WebGLRenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- document.body.appendChild( renderer.domElement );
- renderer.toneMapping = toneMappingOptions[ params.toneMapping ];
- renderer.toneMappingExposure = params.exposure;
- // Set CustomToneMapping to Uncharted2
- // source: http://filmicworlds.com/blog/filmic-tonemapping-operators/
- THREE.ShaderChunk.tonemapping_pars_fragment = THREE.ShaderChunk.tonemapping_pars_fragment.replace(
- 'vec3 CustomToneMapping( vec3 color ) { return color; }',
- `#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )
- float toneMappingWhitePoint = 1.0;
- vec3 CustomToneMapping( vec3 color ) {
- color *= toneMappingExposure;
- return saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );
- }`
- );
- scene = new THREE.Scene();
- scene.backgroundBlurriness = params.blurriness;
- camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.25, 20 );
- camera.position.set( - 1.8, 0.6, 2.7 );
- controls = new OrbitControls( camera, renderer.domElement );
- controls.addEventListener( 'change', render ); // use if there is no animation loop
- controls.enableZoom = false;
- controls.enablePan = false;
- controls.target.set( 0, 0, - 0.2 );
- controls.update();
- const rgbeLoader = new RGBELoader()
- .setPath( 'textures/equirectangular/' );
- const gltfLoader = new GLTFLoader().setPath( 'models/gltf/DamagedHelmet/glTF/' );
- const [ texture, gltf ] = await Promise.all( [
- rgbeLoader.loadAsync( 'venice_sunset_1k.hdr' ),
- gltfLoader.loadAsync( 'DamagedHelmet.gltf' ),
- ] );
- // environment
- texture.mapping = THREE.EquirectangularReflectionMapping;
- scene.background = texture;
- scene.environment = texture;
- // model
- mesh = gltf.scene.getObjectByName( 'node_damagedHelmet_-6514' );
- scene.add( mesh );
- render();
- window.addEventListener( 'resize', onWindowResize );
- gui = new GUI();
- const toneMappingFolder = gui.addFolder( 'Tone Mapping' );
- toneMappingFolder.add( params, 'toneMapping', Object.keys( toneMappingOptions ) )
- .name( 'type' )
- .onChange( function () {
- updateGUI( toneMappingFolder );
- renderer.toneMapping = toneMappingOptions[ params.toneMapping ];
- render();
- } );
- guiExposure = toneMappingFolder.add( params, 'exposure', 0, 2 )
- .onChange( function ( value ) {
- renderer.toneMappingExposure = value;
- render();
- } );
- const backgroundFolder = gui.addFolder( 'Background' );
- backgroundFolder.add( params, 'blurriness', 0, 1 )
- .onChange( function ( value ) {
- scene.backgroundBlurriness = value;
- render();
- } );
- backgroundFolder.add( params, 'intensity', 0, 1 )
- .onChange( function ( value ) {
- scene.backgroundIntensity = value;
- render();
- } );
- updateGUI( toneMappingFolder );
- gui.open();
- }
- function updateGUI( folder ) {
- if ( params.toneMapping === 'None' ) {
- guiExposure.hide();
- } else {
- guiExposure.show();
- }
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- render();
- }
- function render() {
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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