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webgl_tonemapping.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>threejs webgl - inline 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">
<style>
body {
color: #fff;
font-family:Monospace;
font-size:13px;
text-align:center;
background-color: #000;
margin: 0px;
overflow: hidden;
}
a { color: #ff2 }
#info {
position: absolute;
top: 0px; width: 100%;
padding: 5px;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="info"><a href="http://threejs.org" target="_blank" rel="noopener">threejs</a> - Inline Tone Mapping (within a Material's fragment shader) without<br/>using a pre-processing step or float/half buffers by <a href="http://clara.io/" target="_blank" rel="noopener">Ben Houston</a>.</div>
<script src="../build/three.js"></script>
<script src="js/controls/OrbitControls.js"></script>
<script src="js/WebGL.js"></script>
<script src="js/libs/stats.min.js"></script>
<script src="js/libs/dat.gui.min.js"></script>
<script src="js/loaders/RGBELoader.js"></script>
<script src="js/loaders/HDRCubeTextureLoader.js"></script>
<script src="js/pmrem/PMREMGenerator.js"></script>
<script src="js/pmrem/PMREMCubeUVPacker.js"></script>
<script src="js/postprocessing/EffectComposer.js"></script>
<script src="js/postprocessing/RenderPass.js"></script>
<script src="js/postprocessing/MaskPass.js"></script>
<script src="js/postprocessing/ShaderPass.js"></script>
<script src="js/shaders/CopyShader.js"></script>
<script>
if ( WEBGL.isWebGLAvailable() === false ) {
document.body.appendChild( WEBGL.getWebGLErrorMessage() );
}
var container, stats;
var params = {
opacity: 1.0,
roughness: 1.0,
bumpScale: 1.0,
exposure: 3.0,
whitePoint: 5.0,
toneMapping: "Uncharted2",
renderMode: "Renderer"
};
var toneMappingOptions = {
None: THREE.NoToneMapping,
Linear: THREE.LinearToneMapping,
Reinhard: THREE.ReinhardToneMapping,
Uncharted2: THREE.Uncharted2ToneMapping,
Cineon: THREE.CineonToneMapping,
ACESFilmic: THREE.ACESFilmicToneMapping
};
var camera, scene, renderer, group;
var composer;
var standardMaterial, floorMaterial;
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 40, window.innerWidth / window.innerHeight, 1, 2000 );
camera.position.set( 0.0, 40, 40 * 3.5 );
scene = new THREE.Scene();
renderer = new THREE.WebGLRenderer();
standardMaterial = new THREE.MeshStandardMaterial( {
bumpScale: - 0.05,
color: 0xffffff,
metalness: 0.9,
roughness: 0.8,
premultipliedAlpha: true,
transparent: true
} );
var textureLoader = new THREE.TextureLoader();
textureLoader.load( "textures/brick_diffuse.jpg", function ( map ) {
map.wrapS = THREE.RepeatWrapping;
map.wrapT = THREE.RepeatWrapping;
map.encoding = THREE.sRGBEncoding;
map.anisotropy = 4;
map.repeat.set( 9, 0.5 );
standardMaterial.map = map;
standardMaterial.needsUpdate = true;
} );
textureLoader.load( "textures/brick_bump.jpg", function ( map ) {
map.wrapS = THREE.RepeatWrapping;
map.wrapT = THREE.RepeatWrapping;
map.anisotropy = 4;
map.repeat.set( 9, 0.5 );
standardMaterial.bumpMap = map;
standardMaterial.needsUpdate = true;
} );
textureLoader.load( "textures/brick_roughness.jpg", function ( map ) {
map.wrapS = THREE.RepeatWrapping;
map.wrapT = THREE.RepeatWrapping;
map.anisotropy = 4;
map.repeat.set( 9, 0.5 );
standardMaterial.roughnessMap = map;
standardMaterial.needsUpdate = true;
} );
var geometry = new THREE.TorusKnotBufferGeometry( 18, 8, 150, 20 );
mesh = new THREE.Mesh( geometry, standardMaterial );
mesh.castShadow = true;
mesh.receiveShadow = true;
scene.add( mesh );
floorMaterial = new THREE.MeshStandardMaterial( {
map: null,
roughnessMap: null,
color: 0x888888,
metalness: 0.0,
roughness: 1.0,
side: THREE.BackSide
} );
var geometry = new THREE.BoxBufferGeometry( 200, 200, 200 );
var floor = new THREE.Mesh( geometry, floorMaterial );
floor.position.y = 50;
floor.rotation.x = - Math.PI * 0.5;
floor.receiveShadow = true;
scene.add( floor );
// Materials
var hdrpath = "textures/cube/pisaHDR/";
var hdrformat = '.hdr';
var hdrurls = [
hdrpath + 'px' + hdrformat, hdrpath + 'nx' + hdrformat,
hdrpath + 'py' + hdrformat, hdrpath + 'ny' + hdrformat,
hdrpath + 'pz' + hdrformat, hdrpath + 'nz' + hdrformat
];
new THREE.HDRCubeTextureLoader().load( THREE.UnsignedByteType, hdrurls, function ( hdrCubeMap ) {
var pmremGenerator = new THREE.PMREMGenerator( hdrCubeMap );
pmremGenerator.update( renderer );
var pmremCubeUVPacker = new THREE.PMREMCubeUVPacker( pmremGenerator.cubeLods );
pmremCubeUVPacker.update( renderer );
standardMaterial.envMap = pmremCubeUVPacker.CubeUVRenderTarget.texture;
standardMaterial.needsUpdate = true;
hdrCubeMap.dispose();
pmremGenerator.dispose();
pmremCubeUVPacker.dispose();
} );
// Lights
scene.add( new THREE.HemisphereLight( 0x111111, 0x000000 ) );
var spotLight = new THREE.SpotLight( 0xffffff );
spotLight.position.set( 50, 100, 50 );
spotLight.angle = Math.PI / 7;
spotLight.decay = 2;
spotLight.distance = 300;
spotLight.penumbra = 0.8;
spotLight.castShadow = true;
scene.add( spotLight );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.shadowMap.enabled = true;
container.appendChild( renderer.domElement );
renderer.gammaOutput = true;
composer = new THREE.EffectComposer( renderer );
composer.setSize( window.innerWidth, window.innerHeight );
var renderScene = new THREE.RenderPass( scene, camera );
composer.addPass( renderScene );
var copyPass = new THREE.ShaderPass( THREE.CopyShader );
composer.addPass( copyPass );
stats = new Stats();
container.appendChild( stats.dom );
var controls = new THREE.OrbitControls( camera, renderer.domElement );
window.addEventListener( 'resize', onWindowResize, false );
var gui = new dat.GUI();
gui.add( params, 'toneMapping', Object.keys( toneMappingOptions ) );
gui.add( params, 'exposure', 0, 10 );
gui.add( params, 'whitePoint', 0, 10 );
gui.add( params, 'opacity', 0, 1 );
gui.add( params, 'renderMode', [ 'Renderer', 'Composer' ] );
gui.open();
}
function onWindowResize() {
var width = window.innerWidth;
var height = window.innerHeight;
camera.aspect = width / height;
camera.updateProjectionMatrix();
renderer.setSize( width, height );
composer.setSize( width, height );
}
//
function animate() {
requestAnimationFrame( animate );
stats.begin();
render();
stats.end();
}
function render() {
standardMaterial.roughness = params.roughness;
standardMaterial.bumpScale = - 0.05 * params.bumpScale;
standardMaterial.opacity = params.opacity;
if ( renderer.toneMapping !== toneMappingOptions[ params.toneMapping ] ) {
renderer.toneMapping = toneMappingOptions[ params.toneMapping ];
standardMaterial.needsUpdate = true;
floorMaterial.needsUpdate = true;
}
renderer.toneMappingExposure = params.exposure;
renderer.toneMappingWhitePoint = params.whitePoint;
mesh.rotation.y += 0.005;
if ( params.renderMode === "Composer" ) {
composer.render();
} else {
renderer.render( scene, camera );
}
}
</script>
</body>
</html>