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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - 3d luts</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> - 3D LUTs<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=royal_esplanade" target="_blank" rel="noopener">Royal Esplanade</a> by <a href="https://hdrihaven.com/" target="_blank" rel="noopener">HDRI Haven</a><br />
- LUTs from <a href="https://www.rocketstock.com/free-after-effects-templates/35-free-luts-for-color-grading-videos/">RocketStock</a>
- </div>
- <script type="module">
- import * as THREE from '../build/three.module.js';
- import { OrbitControls } from './jsm/controls/OrbitControls.js';
- import { GLTFLoader } from './jsm/loaders/GLTFLoader.js';
- import { RGBELoader } from './jsm/loaders/RGBELoader.js';
- import { EffectComposer } from './jsm/postprocessing/EffectComposer.js';
- import { RenderPass } from './jsm/postprocessing/RenderPass.js';
- import { ShaderPass } from './jsm/postprocessing/ShaderPass.js';
- import { LUTPass } from './jsm/postprocessing/LUTPass.js';
- import { LUTCubeLoader } from './jsm/loaders/LUTCubeLoader.js';
- import { GammaCorrectionShader } from './jsm/shaders/GammaCorrectionShader.js';
- import { GUI } from './jsm/libs/dat.gui.module.js';
- const params = {
- enabled: true,
- lut: 'Bourbon 64.CUBE',
- intensity: 1,
- use2dLut: false,
- };
- const lutMap = {
- 'Bourbon 64.CUBE': null,
- 'Chemical 168.CUBE': null,
- 'Clayton 33.CUBE': null,
- 'Cubicle 99.CUBE': null,
- 'Remy 24.CUBE': null,
- };
- let gui;
- let camera, scene, renderer;
- let composer, lutPass;
- init();
- render();
- function init() {
- const container = document.createElement( 'div' );
- document.body.appendChild( container );
- camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.25, 20 );
- camera.position.set( - 1.8, 0.6, 2.7 );
- scene = new THREE.Scene();
- new RGBELoader()
- .setDataType( THREE.UnsignedByteType )
- .setPath( 'textures/equirectangular/' )
- .load( 'royal_esplanade_1k.hdr', function ( texture ) {
- const envMap = pmremGenerator.fromEquirectangular( texture ).texture;
- scene.background = envMap;
- scene.environment = envMap;
- texture.dispose();
- pmremGenerator.dispose();
- // model
- const loader = new GLTFLoader().setPath( 'models/gltf/DamagedHelmet/glTF/' );
- loader.load( 'DamagedHelmet.gltf', function ( gltf ) {
- scene.add( gltf.scene );
- } );
- } );
- Object.keys( lutMap ).forEach( name => {
- new LUTCubeLoader()
- .load( 'luts/' + name, function ( result ) {
- lutMap[ name ] = result;
- } );
- } );
- renderer = new THREE.WebGLRenderer();
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.toneMapping = THREE.ACESFilmicToneMapping;
- renderer.toneMappingExposure = 1;
- container.appendChild( renderer.domElement );
- const target = new THREE.WebGLRenderTarget( {
- minFilter: THREE.LinearFilter,
- magFilter: THREE.LinearFilter,
- format: THREE.RGBAFormat,
- encoding: THREE.sRGBEncoding
- } );
- composer = new EffectComposer( renderer, target );
- composer.setPixelRatio( window.devicePixelRatio );
- composer.setSize( window.innerWidth, window.innerHeight );
- composer.addPass( new RenderPass( scene, camera ) );
- composer.addPass( new ShaderPass( GammaCorrectionShader ) );
- lutPass = new LUTPass();
- composer.addPass( lutPass );
- const pmremGenerator = new THREE.PMREMGenerator( renderer );
- pmremGenerator.compileEquirectangularShader();
- const controls = new OrbitControls( camera, renderer.domElement );
- controls.minDistance = 2;
- controls.maxDistance = 10;
- controls.target.set( 0, 0, - 0.2 );
- controls.update();
- gui = new GUI();
- gui.width = 350;
- gui.add( params, 'enabled' );
- gui.add( params, 'lut', Object.keys( lutMap ) );
- gui.add( params, 'intensity' ).min( 0 ).max( 1 );
- if ( renderer.capabilities.isWebGL2 ) {
- gui.add( params, 'use2dLut' );
- } else {
- params.use2DLut = true;
- }
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- composer.setSize( window.innerWidth, window.innerHeight );
- render();
- }
- //
- function render() {
- requestAnimationFrame( render );
- lutPass.enabled = params.enabled && Boolean( lutMap[ params.lut ] );
- lutPass.intensity = params.intensity;
- if ( lutMap[ params.lut ] ) {
- const lut = lutMap[ params.lut ];
- lutPass.lut = params.use2DLut ? lut.texture : lut.texture3D;
- }
- composer.render();
- }
- </script>
- </body>
- </html>
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