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506 lines
15 KiB
506 lines
15 KiB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - adaptive tone-mapping</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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<style>
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#labels {
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position: absolute;
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display: grid;
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grid-template-columns: 1fr 1fr 1fr;
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justify-items: center;
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align-items: end;
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height: 100%;
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width: 100%;
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}
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#labels > div {
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background-color: black;
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padding: 6px;
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margin-bottom: 20%;
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}
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</style>
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</head>
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<body>
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<div id="d">
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl demo :
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Earth diffuse and city lights by <a href="http://seanward.org" target="_blank" rel="noopener">Sean Ward</a>
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</div>
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<div id="labels">
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<div>
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Low Dynamic Range<br/>
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Static Tone Mapping
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</div>
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<div>
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High Dynamic Range<br/>
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Static Tone Mapping
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</div>
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<div>
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High Dynamic Range<br/>
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Adaptive Tone Mapping
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</div>
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</div>
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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 { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
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import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
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import { ShaderPass } from 'three/addons/postprocessing/ShaderPass.js';
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import { AdaptiveToneMappingPass } from 'three/addons/postprocessing/AdaptiveToneMappingPass.js';
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import { BloomPass } from 'three/addons/postprocessing/BloomPass.js';
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import { GammaCorrectionShader } from 'three/addons/shaders/GammaCorrectionShader.js';
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let bloomPass, adaptToneMappingPass, ldrToneMappingPass, hdrToneMappingPass;
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let params;
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let camera, scene, renderer, dynamicHdrEffectComposer, hdrEffectComposer, ldrEffectComposer;
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let cameraCube, sceneCube;
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let cameraBG, debugScene;
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let adaptiveLuminanceMat, currentLuminanceMat;
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let directionalLight;
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let orbitControls;
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let windowHalfX = window.innerWidth / 2;
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let windowHalfY = window.innerHeight / 2;
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let windowThirdX = window.innerWidth / 3;
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init();
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animate();
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function init() {
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params = {
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bloomAmount: 1.0,
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sunLight: 4.0,
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enabled: true,
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avgLuminance: 0.7,
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middleGrey: 0.04,
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maxLuminance: 16,
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adaptionRate: 2.0
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};
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const container = document.createElement( 'div' );
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document.body.appendChild( container );
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// CAMERAS
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camera = new THREE.PerspectiveCamera( 70, windowThirdX / window.innerHeight, 0.1, 100000 );
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camera.position.x = 700;
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camera.position.y = 400;
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camera.position.z = 800;
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cameraCube = new THREE.PerspectiveCamera( 70, windowThirdX / window.innerHeight, 1, 100000 );
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cameraBG = new THREE.OrthographicCamera( - windowHalfX, windowHalfX, windowHalfY, - windowHalfY, - 10000, 10000 );
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cameraBG.position.z = 100;
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orbitControls = new OrbitControls( camera, container );
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orbitControls.autoRotate = true;
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orbitControls.autoRotateSpeed = 1;
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// SCENE
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scene = new THREE.Scene();
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sceneCube = new THREE.Scene();
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debugScene = new THREE.Scene();
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// LIGHTS
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const ambient = new THREE.AmbientLight( 0x050505 );
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scene.add( ambient );
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directionalLight = new THREE.DirectionalLight( 0xffffff, params.sunLight );
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directionalLight.position.set( 2, 0, 10 ).normalize();
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scene.add( directionalLight );
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const atmoShader = {
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side: THREE.BackSide,
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// blending: THREE.AdditiveBlending,
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transparent: true,
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lights: true,
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uniforms: THREE.UniformsUtils.merge( [
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THREE.UniformsLib[ 'common' ],
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THREE.UniformsLib[ 'lights' ]
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] ),
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vertexShader: [
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'varying vec3 vViewPosition;',
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'varying vec3 vNormal;',
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'void main() {',
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THREE.ShaderChunk[ 'beginnormal_vertex' ],
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THREE.ShaderChunk[ 'defaultnormal_vertex' ],
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' vNormal = normalize( transformedNormal );',
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'vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );',
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'vViewPosition = -mvPosition.xyz;',
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'gl_Position = projectionMatrix * mvPosition;',
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'}'
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].join( '\n' ),
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fragmentShader: [
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THREE.ShaderChunk[ 'common' ],
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THREE.ShaderChunk[ 'bsdfs' ],
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THREE.ShaderChunk[ 'lights_pars_begin' ],
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THREE.ShaderChunk[ 'normal_pars_fragment' ],
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THREE.ShaderChunk[ 'lights_phong_pars_fragment' ],
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'void main() {',
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'vec3 normal = normalize( -vNormal );',
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'vec3 viewPosition = normalize( vViewPosition );',
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'#if NUM_DIR_LIGHTS > 0',
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'vec3 dirDiffuse = vec3( 0.0 );',
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'for( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {',
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'vec4 lDirection = viewMatrix * vec4( directionalLights[i].direction, 0.0 );',
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'vec3 dirVector = normalize( lDirection.xyz );',
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'float dotProduct = dot( viewPosition, dirVector );',
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'dotProduct = 1.0 * max( dotProduct, 0.0 ) + (1.0 - max( -dot( normal, dirVector ), 0.0 ));',
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'dotProduct *= dotProduct;',
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'dirDiffuse += max( 0.5 * dotProduct, 0.0 ) * directionalLights[i].color;',
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'}',
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'#endif',
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//Fade out atmosphere at edge
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'float viewDot = abs(dot( normal, viewPosition ));',
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'viewDot = clamp( pow( viewDot + 0.6, 10.0 ), 0.0, 1.0);',
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'vec3 color = vec3( 0.05, 0.09, 0.13 ) * dirDiffuse;',
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'gl_FragColor = vec4( color, viewDot );',
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'}'
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].join( '\n' )
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};
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const earthAtmoMat = new THREE.ShaderMaterial( atmoShader );
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const earthMat = new THREE.MeshPhongMaterial( {
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color: 0xffffff,
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shininess: 200
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} );
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const textureLoader = new THREE.TextureLoader();
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textureLoader.load( 'textures/planets/earth_atmos_4096.jpg', function ( tex ) {
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earthMat.map = tex;
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earthMat.map.encoding = THREE.sRGBEncoding;
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earthMat.needsUpdate = true;
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} );
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textureLoader.load( 'textures/planets/earth_specular_2048.jpg', function ( tex ) {
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earthMat.specularMap = tex;
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earthMat.specularMap.encoding = THREE.sRGBEncoding;
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earthMat.needsUpdate = true;
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} );
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// let earthNormal = textureLoader.load( 'textures/planets/earth-new-normal-2048.jpg', function( tex ) {
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// earthMat.normalMap = tex;
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// earthMat.needsUpdate = true;
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// } );
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const earthLights = textureLoader.load( 'textures/planets/earth_lights_2048.png' );
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earthLights.encoding = THREE.sRGBEncoding;
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const earthLightsMat = new THREE.MeshBasicMaterial( {
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color: 0xffffff,
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blending: THREE.AdditiveBlending,
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transparent: true,
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depthTest: false,
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map: earthLights,
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} );
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const clouds = textureLoader.load( 'textures/planets/earth_clouds_2048.png' );
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clouds.encoding = THREE.sRGBEncoding;
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const earthCloudsMat = new THREE.MeshLambertMaterial( {
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color: 0xffffff,
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blending: THREE.NormalBlending,
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transparent: true,
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depthTest: false,
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map: clouds
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} );
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const earthGeo = new THREE.SphereGeometry( 600, 24, 24 );
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const sphereMesh = new THREE.Mesh( earthGeo, earthMat );
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scene.add( sphereMesh );
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const sphereLightsMesh = new THREE.Mesh( earthGeo, earthLightsMat );
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scene.add( sphereLightsMesh );
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const sphereCloudsMesh = new THREE.Mesh( earthGeo, earthCloudsMat );
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scene.add( sphereCloudsMesh );
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const sphereAtmoMesh = new THREE.Mesh( earthGeo, earthAtmoMat );
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sphereAtmoMesh.scale.set( 1.05, 1.05, 1.05 );
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scene.add( sphereAtmoMesh );
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const vBGShader = [
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// "attribute vec2 uv;",
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'varying vec2 vUv;',
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'void main() {',
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'vUv = uv;',
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'gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',
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'}'
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].join( '\n' );
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const pBGShader = [
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'uniform sampler2D map;',
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'varying vec2 vUv;',
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'void main() {',
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'vec2 sampleUV = vUv;',
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'vec4 color = texture2D( map, sampleUV, 0.0 );',
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'gl_FragColor = vec4( color.xyz, 1.0 );',
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'}'
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].join( '\n' );
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// Skybox
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adaptiveLuminanceMat = new THREE.ShaderMaterial( {
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uniforms: {
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'map': { value: null }
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},
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vertexShader: vBGShader,
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fragmentShader: pBGShader,
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depthTest: false,
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// color: 0xffffff
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blending: THREE.NoBlending
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} );
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currentLuminanceMat = new THREE.ShaderMaterial( {
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uniforms: {
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'map': { value: null }
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},
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vertexShader: vBGShader,
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fragmentShader: pBGShader,
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depthTest: false
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// color: 0xffffff
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// blending: THREE.NoBlending
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} );
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let quadBG = new THREE.Mesh( new THREE.PlaneGeometry( 0.1, 0.1 ), currentLuminanceMat );
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quadBG.position.z = - 500;
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quadBG.position.x = - window.innerWidth * 0.5 + window.innerWidth * 0.05;
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quadBG.scale.set( window.innerWidth, window.innerHeight, 1 );
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debugScene.add( quadBG );
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quadBG = new THREE.Mesh( new THREE.PlaneGeometry( 0.1, 0.1 ), adaptiveLuminanceMat );
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quadBG.position.z = - 500;
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quadBG.position.x = - window.innerWidth * 0.5 + window.innerWidth * 0.15;
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quadBG.scale.set( window.innerWidth, window.innerHeight, 1 );
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debugScene.add( quadBG );
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const r = 'textures/cube/MilkyWay/';
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const urls = [ r + 'dark-s_px.jpg', r + 'dark-s_nx.jpg',
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r + 'dark-s_py.jpg', r + 'dark-s_ny.jpg',
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r + 'dark-s_pz.jpg', r + 'dark-s_nz.jpg' ];
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const textureCube = new THREE.CubeTextureLoader().load( urls );
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textureCube.encoding = THREE.sRGBEncoding;
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sceneCube.background = textureCube;
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.autoClear = false;
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container.appendChild( renderer.domElement );
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// let width = window.innerWidth || 1;
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const height = window.innerHeight || 1;
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const parameters = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBAFormat };
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const regularRenderTarget = new THREE.WebGLRenderTarget( windowThirdX, height, parameters );
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ldrEffectComposer = new EffectComposer( renderer, regularRenderTarget );
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parameters.type = THREE.FloatType;
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if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.has( 'OES_texture_half_float_linear' ) === false ) {
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parameters.type = undefined; // avoid usage of floating point textures
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}
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const hdrRenderTarget = new THREE.WebGLRenderTarget( windowThirdX, height, parameters );
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dynamicHdrEffectComposer = new EffectComposer( renderer, hdrRenderTarget );
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dynamicHdrEffectComposer.setSize( window.innerWidth, window.innerHeight );
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hdrEffectComposer = new EffectComposer( renderer, hdrRenderTarget );
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const debugPass = new RenderPass( debugScene, cameraBG );
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debugPass.clear = false;
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const scenePass = new RenderPass( scene, camera, undefined, undefined, undefined );
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const skyboxPass = new RenderPass( sceneCube, cameraCube );
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scenePass.clear = false;
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adaptToneMappingPass = new AdaptiveToneMappingPass( true, 256 );
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adaptToneMappingPass.needsSwap = true;
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ldrToneMappingPass = new AdaptiveToneMappingPass( false, 256 );
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hdrToneMappingPass = new AdaptiveToneMappingPass( false, 256 );
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bloomPass = new BloomPass();
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const gammaCorrectionPass = new ShaderPass( GammaCorrectionShader );
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dynamicHdrEffectComposer.addPass( skyboxPass );
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dynamicHdrEffectComposer.addPass( scenePass );
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dynamicHdrEffectComposer.addPass( adaptToneMappingPass );
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dynamicHdrEffectComposer.addPass( bloomPass );
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dynamicHdrEffectComposer.addPass( gammaCorrectionPass );
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hdrEffectComposer.addPass( skyboxPass );
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hdrEffectComposer.addPass( scenePass );
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hdrEffectComposer.addPass( hdrToneMappingPass );
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hdrEffectComposer.addPass( bloomPass );
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hdrEffectComposer.addPass( gammaCorrectionPass );
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ldrEffectComposer.addPass( skyboxPass );
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ldrEffectComposer.addPass( scenePass );
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ldrEffectComposer.addPass( ldrToneMappingPass );
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ldrEffectComposer.addPass( bloomPass );
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ldrEffectComposer.addPass( gammaCorrectionPass );
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const gui = new GUI();
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const sceneGui = gui.addFolder( 'Scenes' );
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const toneMappingGui = gui.addFolder( 'ToneMapping' );
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const staticToneMappingGui = gui.addFolder( 'StaticOnly' );
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const adaptiveToneMappingGui = gui.addFolder( 'AdaptiveOnly' );
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sceneGui.add( params, 'bloomAmount', 0.0, 10.0 );
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sceneGui.add( params, 'sunLight', 0.1, 12.0 );
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toneMappingGui.add( params, 'enabled' );
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toneMappingGui.add( params, 'middleGrey', 0, 12 );
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toneMappingGui.add( params, 'maxLuminance', 1, 30 );
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staticToneMappingGui.add( params, 'avgLuminance', 0.001, 2.0 );
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adaptiveToneMappingGui.add( params, 'adaptionRate', 0.0, 10.0 );
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gui.open();
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window.addEventListener( 'resize', onWindowResize );
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}
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function onWindowResize() {
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windowHalfX = window.innerWidth / 2;
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windowHalfY = window.innerHeight / 2;
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windowThirdX = window.innerWidth / 3;
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camera.aspect = windowThirdX / window.innerHeight;
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camera.updateProjectionMatrix();
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cameraCube.aspect = windowThirdX / window.innerHeight;
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cameraCube.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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if ( bloomPass ) {
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bloomPass.combineUniforms[ 'strength' ].value = params.bloomAmount;
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}
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if ( adaptToneMappingPass ) {
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adaptToneMappingPass.setAdaptionRate( params.adaptionRate );
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adaptiveLuminanceMat.uniforms[ 'map' ].value = adaptToneMappingPass.luminanceRT;
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currentLuminanceMat.uniforms[ 'map' ].value = adaptToneMappingPass.currentLuminanceRT;
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adaptToneMappingPass.enabled = params.enabled;
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adaptToneMappingPass.setMaxLuminance( params.maxLuminance );
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adaptToneMappingPass.setMiddleGrey( params.middleGrey );
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hdrToneMappingPass.enabled = params.enabled;
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hdrToneMappingPass.setMaxLuminance( params.maxLuminance );
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hdrToneMappingPass.setMiddleGrey( params.middleGrey );
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if ( hdrToneMappingPass.setAverageLuminance ) {
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hdrToneMappingPass.setAverageLuminance( params.avgLuminance );
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}
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ldrToneMappingPass.enabled = params.enabled;
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ldrToneMappingPass.setMaxLuminance( params.maxLuminance );
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ldrToneMappingPass.setMiddleGrey( params.middleGrey );
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if ( ldrToneMappingPass.setAverageLuminance ) {
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ldrToneMappingPass.setAverageLuminance( params.avgLuminance );
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}
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}
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directionalLight.intensity = params.sunLight;
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orbitControls.update();
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render();
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}
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function render() {
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camera.lookAt( scene.position );
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cameraCube.rotation.copy( camera.rotation );
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renderer.setViewport( 0, 0, windowThirdX, window.innerHeight );
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ldrEffectComposer.render( 0.017 );
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renderer.setViewport( windowThirdX, 0, windowThirdX, window.innerHeight );
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hdrEffectComposer.render( 0.017 );
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renderer.setViewport( windowThirdX * 2, 0, windowThirdX, window.innerHeight );
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dynamicHdrEffectComposer.render( 0.017 );
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}
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</script>
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</body>
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</html>
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