You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
507 lines
15 KiB
507 lines
15 KiB
2 years ago
|
<!DOCTYPE html>
|
||
|
<html lang="en">
|
||
|
<head>
|
||
|
<title>three.js webgl - adaptive 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">
|
||
|
<style>
|
||
|
#labels {
|
||
|
position: absolute;
|
||
|
display: grid;
|
||
|
grid-template-columns: 1fr 1fr 1fr;
|
||
|
justify-items: center;
|
||
|
align-items: end;
|
||
|
height: 100%;
|
||
|
width: 100%;
|
||
|
}
|
||
|
#labels > div {
|
||
|
background-color: black;
|
||
|
padding: 6px;
|
||
|
margin-bottom: 20%;
|
||
|
}
|
||
|
</style>
|
||
|
</head>
|
||
|
|
||
|
<body>
|
||
|
<div id="d">
|
||
|
<div id="info">
|
||
|
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl demo :
|
||
|
Earth diffuse and city lights by <a href="http://seanward.org" target="_blank" rel="noopener">Sean Ward</a>
|
||
|
</div>
|
||
|
<div id="labels">
|
||
|
<div>
|
||
|
Low Dynamic Range<br/>
|
||
|
Static Tone Mapping
|
||
|
</div>
|
||
|
<div>
|
||
|
High Dynamic Range<br/>
|
||
|
Static Tone Mapping
|
||
|
</div>
|
||
|
<div>
|
||
|
High Dynamic Range<br/>
|
||
|
Adaptive Tone Mapping
|
||
|
</div>
|
||
|
</div>
|
||
|
</div>
|
||
|
|
||
|
<!-- Import maps polyfill -->
|
||
|
<!-- Remove this when import maps will be widely supported -->
|
||
|
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
|
||
|
|
||
|
<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 { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
|
||
|
import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
|
||
|
import { ShaderPass } from 'three/addons/postprocessing/ShaderPass.js';
|
||
|
import { AdaptiveToneMappingPass } from 'three/addons/postprocessing/AdaptiveToneMappingPass.js';
|
||
|
import { BloomPass } from 'three/addons/postprocessing/BloomPass.js';
|
||
|
import { GammaCorrectionShader } from 'three/addons/shaders/GammaCorrectionShader.js';
|
||
|
|
||
|
let bloomPass, adaptToneMappingPass, ldrToneMappingPass, hdrToneMappingPass;
|
||
|
let params;
|
||
|
|
||
|
let camera, scene, renderer, dynamicHdrEffectComposer, hdrEffectComposer, ldrEffectComposer;
|
||
|
let cameraCube, sceneCube;
|
||
|
let cameraBG, debugScene;
|
||
|
let adaptiveLuminanceMat, currentLuminanceMat;
|
||
|
|
||
|
let directionalLight;
|
||
|
|
||
|
let orbitControls;
|
||
|
|
||
|
let windowHalfX = window.innerWidth / 2;
|
||
|
let windowHalfY = window.innerHeight / 2;
|
||
|
|
||
|
let windowThirdX = window.innerWidth / 3;
|
||
|
|
||
|
init();
|
||
|
animate();
|
||
|
|
||
|
function init() {
|
||
|
|
||
|
params = {
|
||
|
bloomAmount: 1.0,
|
||
|
sunLight: 4.0,
|
||
|
|
||
|
enabled: true,
|
||
|
avgLuminance: 0.7,
|
||
|
middleGrey: 0.04,
|
||
|
maxLuminance: 16,
|
||
|
|
||
|
adaptionRate: 2.0
|
||
|
};
|
||
|
|
||
|
const container = document.createElement( 'div' );
|
||
|
document.body.appendChild( container );
|
||
|
|
||
|
// CAMERAS
|
||
|
|
||
|
camera = new THREE.PerspectiveCamera( 70, windowThirdX / window.innerHeight, 0.1, 100000 );
|
||
|
camera.position.x = 700;
|
||
|
camera.position.y = 400;
|
||
|
camera.position.z = 800;
|
||
|
cameraCube = new THREE.PerspectiveCamera( 70, windowThirdX / window.innerHeight, 1, 100000 );
|
||
|
|
||
|
cameraBG = new THREE.OrthographicCamera( - windowHalfX, windowHalfX, windowHalfY, - windowHalfY, - 10000, 10000 );
|
||
|
cameraBG.position.z = 100;
|
||
|
|
||
|
orbitControls = new OrbitControls( camera, container );
|
||
|
orbitControls.autoRotate = true;
|
||
|
orbitControls.autoRotateSpeed = 1;
|
||
|
|
||
|
// SCENE
|
||
|
|
||
|
scene = new THREE.Scene();
|
||
|
sceneCube = new THREE.Scene();
|
||
|
debugScene = new THREE.Scene();
|
||
|
|
||
|
// LIGHTS
|
||
|
|
||
|
const ambient = new THREE.AmbientLight( 0x050505 );
|
||
|
scene.add( ambient );
|
||
|
|
||
|
directionalLight = new THREE.DirectionalLight( 0xffffff, params.sunLight );
|
||
|
directionalLight.position.set( 2, 0, 10 ).normalize();
|
||
|
scene.add( directionalLight );
|
||
|
|
||
|
const atmoShader = {
|
||
|
side: THREE.BackSide,
|
||
|
// blending: THREE.AdditiveBlending,
|
||
|
transparent: true,
|
||
|
lights: true,
|
||
|
uniforms: THREE.UniformsUtils.merge( [
|
||
|
|
||
|
THREE.UniformsLib[ 'common' ],
|
||
|
THREE.UniformsLib[ 'lights' ]
|
||
|
|
||
|
] ),
|
||
|
vertexShader: [
|
||
|
'varying vec3 vViewPosition;',
|
||
|
'varying vec3 vNormal;',
|
||
|
'void main() {',
|
||
|
THREE.ShaderChunk[ 'beginnormal_vertex' ],
|
||
|
THREE.ShaderChunk[ 'defaultnormal_vertex' ],
|
||
|
|
||
|
' vNormal = normalize( transformedNormal );',
|
||
|
'vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );',
|
||
|
'vViewPosition = -mvPosition.xyz;',
|
||
|
'gl_Position = projectionMatrix * mvPosition;',
|
||
|
'}'
|
||
|
|
||
|
].join( '\n' ),
|
||
|
|
||
|
fragmentShader: [
|
||
|
|
||
|
THREE.ShaderChunk[ 'common' ],
|
||
|
THREE.ShaderChunk[ 'bsdfs' ],
|
||
|
THREE.ShaderChunk[ 'lights_pars_begin' ],
|
||
|
THREE.ShaderChunk[ 'normal_pars_fragment' ],
|
||
|
THREE.ShaderChunk[ 'lights_phong_pars_fragment' ],
|
||
|
|
||
|
'void main() {',
|
||
|
'vec3 normal = normalize( -vNormal );',
|
||
|
'vec3 viewPosition = normalize( vViewPosition );',
|
||
|
'#if NUM_DIR_LIGHTS > 0',
|
||
|
|
||
|
'vec3 dirDiffuse = vec3( 0.0 );',
|
||
|
|
||
|
'for( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {',
|
||
|
|
||
|
'vec4 lDirection = viewMatrix * vec4( directionalLights[i].direction, 0.0 );',
|
||
|
'vec3 dirVector = normalize( lDirection.xyz );',
|
||
|
'float dotProduct = dot( viewPosition, dirVector );',
|
||
|
'dotProduct = 1.0 * max( dotProduct, 0.0 ) + (1.0 - max( -dot( normal, dirVector ), 0.0 ));',
|
||
|
'dotProduct *= dotProduct;',
|
||
|
'dirDiffuse += max( 0.5 * dotProduct, 0.0 ) * directionalLights[i].color;',
|
||
|
'}',
|
||
|
'#endif',
|
||
|
|
||
|
//Fade out atmosphere at edge
|
||
|
'float viewDot = abs(dot( normal, viewPosition ));',
|
||
|
'viewDot = clamp( pow( viewDot + 0.6, 10.0 ), 0.0, 1.0);',
|
||
|
|
||
|
'vec3 color = vec3( 0.05, 0.09, 0.13 ) * dirDiffuse;',
|
||
|
'gl_FragColor = vec4( color, viewDot );',
|
||
|
|
||
|
'}'
|
||
|
|
||
|
].join( '\n' )
|
||
|
};
|
||
|
|
||
|
const earthAtmoMat = new THREE.ShaderMaterial( atmoShader );
|
||
|
|
||
|
const earthMat = new THREE.MeshPhongMaterial( {
|
||
|
color: 0xffffff,
|
||
|
shininess: 200
|
||
|
} );
|
||
|
|
||
|
const textureLoader = new THREE.TextureLoader();
|
||
|
|
||
|
textureLoader.load( 'textures/planets/earth_atmos_4096.jpg', function ( tex ) {
|
||
|
|
||
|
earthMat.map = tex;
|
||
|
earthMat.map.encoding = THREE.sRGBEncoding;
|
||
|
earthMat.needsUpdate = true;
|
||
|
|
||
|
} );
|
||
|
textureLoader.load( 'textures/planets/earth_specular_2048.jpg', function ( tex ) {
|
||
|
|
||
|
earthMat.specularMap = tex;
|
||
|
earthMat.specularMap.encoding = THREE.sRGBEncoding;
|
||
|
earthMat.needsUpdate = true;
|
||
|
|
||
|
} );
|
||
|
|
||
|
// let earthNormal = textureLoader.load( 'textures/planets/earth-new-normal-2048.jpg', function( tex ) {
|
||
|
// earthMat.normalMap = tex;
|
||
|
// earthMat.needsUpdate = true;
|
||
|
// } );
|
||
|
|
||
|
const earthLights = textureLoader.load( 'textures/planets/earth_lights_2048.png' );
|
||
|
earthLights.encoding = THREE.sRGBEncoding;
|
||
|
|
||
|
const earthLightsMat = new THREE.MeshBasicMaterial( {
|
||
|
color: 0xffffff,
|
||
|
blending: THREE.AdditiveBlending,
|
||
|
transparent: true,
|
||
|
depthTest: false,
|
||
|
map: earthLights,
|
||
|
|
||
|
} );
|
||
|
|
||
|
const clouds = textureLoader.load( 'textures/planets/earth_clouds_2048.png' );
|
||
|
clouds.encoding = THREE.sRGBEncoding;
|
||
|
|
||
|
const earthCloudsMat = new THREE.MeshLambertMaterial( {
|
||
|
color: 0xffffff,
|
||
|
blending: THREE.NormalBlending,
|
||
|
transparent: true,
|
||
|
depthTest: false,
|
||
|
map: clouds
|
||
|
} );
|
||
|
|
||
|
|
||
|
const earthGeo = new THREE.SphereGeometry( 600, 24, 24 );
|
||
|
const sphereMesh = new THREE.Mesh( earthGeo, earthMat );
|
||
|
scene.add( sphereMesh );
|
||
|
|
||
|
const sphereLightsMesh = new THREE.Mesh( earthGeo, earthLightsMat );
|
||
|
scene.add( sphereLightsMesh );
|
||
|
|
||
|
const sphereCloudsMesh = new THREE.Mesh( earthGeo, earthCloudsMat );
|
||
|
scene.add( sphereCloudsMesh );
|
||
|
|
||
|
const sphereAtmoMesh = new THREE.Mesh( earthGeo, earthAtmoMat );
|
||
|
sphereAtmoMesh.scale.set( 1.05, 1.05, 1.05 );
|
||
|
scene.add( sphereAtmoMesh );
|
||
|
|
||
|
const vBGShader = [
|
||
|
// "attribute vec2 uv;",
|
||
|
'varying vec2 vUv;',
|
||
|
'void main() {',
|
||
|
'vUv = uv;',
|
||
|
'gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );',
|
||
|
'}'
|
||
|
|
||
|
].join( '\n' );
|
||
|
|
||
|
const pBGShader = [
|
||
|
|
||
|
'uniform sampler2D map;',
|
||
|
'varying vec2 vUv;',
|
||
|
|
||
|
'void main() {',
|
||
|
|
||
|
'vec2 sampleUV = vUv;',
|
||
|
'vec4 color = texture2D( map, sampleUV, 0.0 );',
|
||
|
|
||
|
'gl_FragColor = vec4( color.xyz, 1.0 );',
|
||
|
|
||
|
'}'
|
||
|
|
||
|
].join( '\n' );
|
||
|
|
||
|
// Skybox
|
||
|
adaptiveLuminanceMat = new THREE.ShaderMaterial( {
|
||
|
uniforms: {
|
||
|
'map': { value: null }
|
||
|
},
|
||
|
vertexShader: vBGShader,
|
||
|
fragmentShader: pBGShader,
|
||
|
depthTest: false,
|
||
|
// color: 0xffffff
|
||
|
blending: THREE.NoBlending
|
||
|
} );
|
||
|
|
||
|
currentLuminanceMat = new THREE.ShaderMaterial( {
|
||
|
uniforms: {
|
||
|
'map': { value: null }
|
||
|
},
|
||
|
vertexShader: vBGShader,
|
||
|
fragmentShader: pBGShader,
|
||
|
depthTest: false
|
||
|
// color: 0xffffff
|
||
|
// blending: THREE.NoBlending
|
||
|
} );
|
||
|
|
||
|
let quadBG = new THREE.Mesh( new THREE.PlaneGeometry( 0.1, 0.1 ), currentLuminanceMat );
|
||
|
quadBG.position.z = - 500;
|
||
|
quadBG.position.x = - window.innerWidth * 0.5 + window.innerWidth * 0.05;
|
||
|
quadBG.scale.set( window.innerWidth, window.innerHeight, 1 );
|
||
|
debugScene.add( quadBG );
|
||
|
|
||
|
quadBG = new THREE.Mesh( new THREE.PlaneGeometry( 0.1, 0.1 ), adaptiveLuminanceMat );
|
||
|
quadBG.position.z = - 500;
|
||
|
quadBG.position.x = - window.innerWidth * 0.5 + window.innerWidth * 0.15;
|
||
|
quadBG.scale.set( window.innerWidth, window.innerHeight, 1 );
|
||
|
debugScene.add( quadBG );
|
||
|
|
||
|
const r = 'textures/cube/MilkyWay/';
|
||
|
const urls = [ r + 'dark-s_px.jpg', r + 'dark-s_nx.jpg',
|
||
|
r + 'dark-s_py.jpg', r + 'dark-s_ny.jpg',
|
||
|
r + 'dark-s_pz.jpg', r + 'dark-s_nz.jpg' ];
|
||
|
|
||
|
const textureCube = new THREE.CubeTextureLoader().load( urls );
|
||
|
textureCube.encoding = THREE.sRGBEncoding;
|
||
|
|
||
|
sceneCube.background = textureCube;
|
||
|
|
||
|
renderer = new THREE.WebGLRenderer();
|
||
|
renderer.setPixelRatio( window.devicePixelRatio );
|
||
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
renderer.autoClear = false;
|
||
|
|
||
|
container.appendChild( renderer.domElement );
|
||
|
|
||
|
// let width = window.innerWidth || 1;
|
||
|
const height = window.innerHeight || 1;
|
||
|
|
||
|
const parameters = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBAFormat };
|
||
|
const regularRenderTarget = new THREE.WebGLRenderTarget( windowThirdX, height, parameters );
|
||
|
ldrEffectComposer = new EffectComposer( renderer, regularRenderTarget );
|
||
|
|
||
|
parameters.type = THREE.FloatType;
|
||
|
|
||
|
if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.has( 'OES_texture_half_float_linear' ) === false ) {
|
||
|
|
||
|
parameters.type = undefined; // avoid usage of floating point textures
|
||
|
|
||
|
}
|
||
|
|
||
|
const hdrRenderTarget = new THREE.WebGLRenderTarget( windowThirdX, height, parameters );
|
||
|
dynamicHdrEffectComposer = new EffectComposer( renderer, hdrRenderTarget );
|
||
|
dynamicHdrEffectComposer.setSize( window.innerWidth, window.innerHeight );
|
||
|
hdrEffectComposer = new EffectComposer( renderer, hdrRenderTarget );
|
||
|
|
||
|
const debugPass = new RenderPass( debugScene, cameraBG );
|
||
|
debugPass.clear = false;
|
||
|
const scenePass = new RenderPass( scene, camera, undefined, undefined, undefined );
|
||
|
const skyboxPass = new RenderPass( sceneCube, cameraCube );
|
||
|
scenePass.clear = false;
|
||
|
|
||
|
adaptToneMappingPass = new AdaptiveToneMappingPass( true, 256 );
|
||
|
adaptToneMappingPass.needsSwap = true;
|
||
|
ldrToneMappingPass = new AdaptiveToneMappingPass( false, 256 );
|
||
|
hdrToneMappingPass = new AdaptiveToneMappingPass( false, 256 );
|
||
|
bloomPass = new BloomPass();
|
||
|
const gammaCorrectionPass = new ShaderPass( GammaCorrectionShader );
|
||
|
|
||
|
dynamicHdrEffectComposer.addPass( skyboxPass );
|
||
|
dynamicHdrEffectComposer.addPass( scenePass );
|
||
|
dynamicHdrEffectComposer.addPass( adaptToneMappingPass );
|
||
|
dynamicHdrEffectComposer.addPass( bloomPass );
|
||
|
dynamicHdrEffectComposer.addPass( gammaCorrectionPass );
|
||
|
|
||
|
hdrEffectComposer.addPass( skyboxPass );
|
||
|
hdrEffectComposer.addPass( scenePass );
|
||
|
hdrEffectComposer.addPass( hdrToneMappingPass );
|
||
|
hdrEffectComposer.addPass( bloomPass );
|
||
|
hdrEffectComposer.addPass( gammaCorrectionPass );
|
||
|
|
||
|
ldrEffectComposer.addPass( skyboxPass );
|
||
|
ldrEffectComposer.addPass( scenePass );
|
||
|
ldrEffectComposer.addPass( ldrToneMappingPass );
|
||
|
ldrEffectComposer.addPass( bloomPass );
|
||
|
ldrEffectComposer.addPass( gammaCorrectionPass );
|
||
|
|
||
|
const gui = new GUI();
|
||
|
|
||
|
const sceneGui = gui.addFolder( 'Scenes' );
|
||
|
const toneMappingGui = gui.addFolder( 'ToneMapping' );
|
||
|
const staticToneMappingGui = gui.addFolder( 'StaticOnly' );
|
||
|
const adaptiveToneMappingGui = gui.addFolder( 'AdaptiveOnly' );
|
||
|
|
||
|
sceneGui.add( params, 'bloomAmount', 0.0, 10.0 );
|
||
|
sceneGui.add( params, 'sunLight', 0.1, 12.0 );
|
||
|
|
||
|
toneMappingGui.add( params, 'enabled' );
|
||
|
toneMappingGui.add( params, 'middleGrey', 0, 12 );
|
||
|
toneMappingGui.add( params, 'maxLuminance', 1, 30 );
|
||
|
|
||
|
staticToneMappingGui.add( params, 'avgLuminance', 0.001, 2.0 );
|
||
|
adaptiveToneMappingGui.add( params, 'adaptionRate', 0.0, 10.0 );
|
||
|
|
||
|
gui.open();
|
||
|
|
||
|
window.addEventListener( 'resize', onWindowResize );
|
||
|
|
||
|
}
|
||
|
|
||
|
function onWindowResize() {
|
||
|
|
||
|
windowHalfX = window.innerWidth / 2;
|
||
|
windowHalfY = window.innerHeight / 2;
|
||
|
windowThirdX = window.innerWidth / 3;
|
||
|
|
||
|
camera.aspect = windowThirdX / window.innerHeight;
|
||
|
camera.updateProjectionMatrix();
|
||
|
|
||
|
cameraCube.aspect = windowThirdX / window.innerHeight;
|
||
|
cameraCube.updateProjectionMatrix();
|
||
|
|
||
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
||
|
|
||
|
}
|
||
|
|
||
|
function animate() {
|
||
|
|
||
|
requestAnimationFrame( animate );
|
||
|
if ( bloomPass ) {
|
||
|
|
||
|
bloomPass.combineUniforms[ 'strength' ].value = params.bloomAmount;
|
||
|
|
||
|
}
|
||
|
|
||
|
if ( adaptToneMappingPass ) {
|
||
|
|
||
|
adaptToneMappingPass.setAdaptionRate( params.adaptionRate );
|
||
|
adaptiveLuminanceMat.uniforms[ 'map' ].value = adaptToneMappingPass.luminanceRT;
|
||
|
currentLuminanceMat.uniforms[ 'map' ].value = adaptToneMappingPass.currentLuminanceRT;
|
||
|
|
||
|
adaptToneMappingPass.enabled = params.enabled;
|
||
|
adaptToneMappingPass.setMaxLuminance( params.maxLuminance );
|
||
|
adaptToneMappingPass.setMiddleGrey( params.middleGrey );
|
||
|
|
||
|
hdrToneMappingPass.enabled = params.enabled;
|
||
|
hdrToneMappingPass.setMaxLuminance( params.maxLuminance );
|
||
|
hdrToneMappingPass.setMiddleGrey( params.middleGrey );
|
||
|
if ( hdrToneMappingPass.setAverageLuminance ) {
|
||
|
|
||
|
hdrToneMappingPass.setAverageLuminance( params.avgLuminance );
|
||
|
|
||
|
}
|
||
|
|
||
|
ldrToneMappingPass.enabled = params.enabled;
|
||
|
ldrToneMappingPass.setMaxLuminance( params.maxLuminance );
|
||
|
ldrToneMappingPass.setMiddleGrey( params.middleGrey );
|
||
|
if ( ldrToneMappingPass.setAverageLuminance ) {
|
||
|
|
||
|
ldrToneMappingPass.setAverageLuminance( params.avgLuminance );
|
||
|
|
||
|
}
|
||
|
|
||
|
}
|
||
|
|
||
|
directionalLight.intensity = params.sunLight;
|
||
|
|
||
|
orbitControls.update();
|
||
|
|
||
|
render();
|
||
|
|
||
|
}
|
||
|
|
||
|
function render() {
|
||
|
|
||
|
camera.lookAt( scene.position );
|
||
|
cameraCube.rotation.copy( camera.rotation );
|
||
|
|
||
|
renderer.setViewport( 0, 0, windowThirdX, window.innerHeight );
|
||
|
ldrEffectComposer.render( 0.017 );
|
||
|
|
||
|
renderer.setViewport( windowThirdX, 0, windowThirdX, window.innerHeight );
|
||
|
hdrEffectComposer.render( 0.017 );
|
||
|
|
||
|
renderer.setViewport( windowThirdX * 2, 0, windowThirdX, window.innerHeight );
|
||
|
dynamicHdrEffectComposer.render( 0.017 );
|
||
|
|
||
|
}
|
||
|
|
||
|
</script>
|
||
|
|
||
|
</body>
|
||
|
</html>
|