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three.js/examples/webgl_shading_physical.html

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<!doctype html>
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<title>three.js webgl - physically based shading</title>
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a { color: skyblue; }
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<div id="info">
<a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - webgl physically based shading testbed
</div>
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<script>
var MARGIN = 0;
var SCREEN_WIDTH = window.innerWidth;
var SCREEN_HEIGHT = window.innerHeight - 2 * MARGIN;
var FAR = 10000;
var DAY = 0;
var container, stats;
var camera, scene, renderer;
var mesh, geometry;
var sunLight, pointLight, ambientLight;
var morph;
var composer, effectFXAA, hblur, vblur;
var parameters, tweenDirection, tweenDay, tweenNight;
var clock = new THREE.Clock();
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 45, SCREEN_WIDTH / SCREEN_HEIGHT, 2, FAR );
camera.position.set( 500, 400, 1200 );
controls = new THREE.TrackballControls( camera );
controls.target.set( 0, 120, 0 );
controls.rotateSpeed = 1.0;
controls.zoomSpeed = 1.2;
controls.panSpeed = 0.8;
controls.noZoom = false;
controls.noPan = false;
controls.staticMoving = true;
controls.dynamicDampingFactor = 0.15;
controls.keys = [ 65, 83, 68 ];
// CUBE CAMERA
cubeCamera = new THREE.CubeCamera( 1, FAR, 0, 128 );
var cubeTarget = cubeCamera.renderTarget;
scene = new THREE.Scene();
scene.fog = new THREE.Fog( 0x00aaff, 1000, FAR );
if ( DAY )
scene.fog.color.setHSV( 0.13, 0.25, 0.99 );
else
scene.fog.color.setHSV( 0.13, 0.25, 0.1 );
// TEXTURES
var x = document.createElement( "canvas" );
var xc = x.getContext("2d");
x.width = x.height = 128;
xc.fillStyle = "#fff";
xc.fillRect(0, 0, 128, 128);
xc.fillStyle = "#000";
xc.fillRect(0, 0, 64, 64);
xc.fillStyle = "#999";
xc.fillRect(32, 32, 32, 32);
xc.fillStyle = "#000";
xc.fillRect(64, 64, 64, 64);
xc.fillStyle = "#555";
xc.fillRect(96, 96, 32, 32);
var texturePattern = new THREE.Texture( x, new THREE.UVMapping(), THREE.RepeatWrapping, THREE.RepeatWrapping );
texturePattern.needsUpdate = true;
texturePattern.repeat.set( 1000, 1000 );
var textureSquares = THREE.ImageUtils.loadTexture( "textures/patterns/bright_squares256.png" );
textureSquares.wrapS = textureSquares.wrapT = THREE.RepeatWrapping;
textureSquares.magFilter = THREE.NearestFilter;
textureSquares.repeat.set( 50, 50 );
var textureNoiseColor = THREE.ImageUtils.loadTexture( "textures/disturb.jpg" );
textureNoiseColor.repeat.set( 1, 1 );
textureNoiseColor.wrapS = textureNoiseColor.wrapT = THREE.RepeatWrapping;
var textureLava = THREE.ImageUtils.loadTexture( "textures/lava/lavatile.jpg" );
textureLava.repeat.set( 6, 2 );
textureLava.wrapS = textureLava.wrapT = THREE.RepeatWrapping;
//
var path = "textures/cube/SwedishRoyalCastle/";
var format = '.jpg';
var urls = [
path + 'px' + format, path + 'nx' + format,
path + 'py' + format, path + 'ny' + format,
path + 'pz' + format, path + 'nz' + format
];
var reflectionCube = THREE.ImageUtils.loadTextureCube( urls );
// GROUND
var groundMaterial = new THREE.MeshPhongMaterial( { shininess: 80, ambient: 0x444444, color: 0xffffff, specular: 0xffffff, map: textureSquares } );
//groundMaterial.color.setHSV( 0.1, 0.1, 0.99 );
var planeGeometry = new THREE.PlaneGeometry( 100, 100 );
var ground = new THREE.Mesh( planeGeometry, groundMaterial );
ground.position.set( 0, 0, 0 );
ground.rotation.x = -Math.PI/2;
ground.scale.set( 1000, 1000, 1000 );
ground.receiveShadow = true;
scene.add( ground );
// MATERIALS
var shader = THREE.ShaderUtils.lib[ "cube" ];
shader.uniforms[ "tCube" ].texture = cubeTarget;
shader.uniforms[ "tFlip" ].value = 1;
var materialCube = new THREE.ShaderMaterial( {
fragmentShader: shader.fragmentShader,
vertexShader: shader.vertexShader,
uniforms: shader.uniforms
} );
var materialLambert = new THREE.MeshPhongMaterial( { shininess: 50, ambient: 0x444444, color: 0xffffff, map: textureNoiseColor } );
var materialPhong = new THREE.MeshPhongMaterial( { shininess: 50, ambient: 0x444444, color: 0xffffff, specular: 0x999999, map: textureLava } );
var materialPhongCube = new THREE.MeshPhongMaterial( { shininess: 50, ambient: 0x444444, color: 0xffffff, specular: 0x999999, envMap: cubeTarget } );
// OBJECTS
var sphereGeometry = new THREE.SphereGeometry( 100, 64, 32 );
var torusGeometry = new THREE.TorusGeometry( 240, 60, 32, 64 );
var cubeGeometry = new THREE.CubeGeometry( 150, 150, 150 );
addObject( torusGeometry, materialPhong, 0, 100, 0, 0 );
addObject( cubeGeometry, materialLambert, 350, 75, 300, 0 );
mesh = addObject( sphereGeometry, materialPhongCube, 350, 100, -350, 0 );
function addObjectColor( geometry, color, x, y, z, ry ) {
var material = new THREE.MeshPhongMaterial( { color: 0xffffff, ambient: 0x444444 } );
//var material = new THREE.MeshPhongMaterial( { color: color, ambient: color } );
//THREE.ColorUtils.adjustHSV( material.ambient, 0, 0, -0.5 );
return addObject( geometry, material, x, y, z, ry );
}
function addObject( geometry, material, x, y, z, ry ) {
var tmpMesh = new THREE.Mesh( geometry, material );
THREE.ColorUtils.adjustHSV( tmpMesh.material.color, 0.1, -0.1, 0 );
tmpMesh.position.set( x, y, z );
tmpMesh.rotation.y = ry;
tmpMesh.castShadow = true;
tmpMesh.receiveShadow = true;
scene.add( tmpMesh );
return tmpMesh;
}
var bigCube = new THREE.CubeGeometry( 50, 500, 50 );
var midCube = new THREE.CubeGeometry( 50, 200, 50 );
var smallCube = new THREE.CubeGeometry( 100, 100, 100 );
addObjectColor( bigCube, 0xff0000, -500, 250, 0, 0 );
addObjectColor( smallCube, 0xff0000, -500, 50, -150, 0 );
addObjectColor( midCube, 0x00ff00, 500, 100, 0, 0 );
addObjectColor( smallCube, 0x00ff00, 500, 50, -150, 0 );
addObjectColor( midCube, 0x0000ff, 0, 100, -500, 0 );
addObjectColor( smallCube, 0x0000ff, -150, 50, -500, 0 );
addObjectColor( midCube, 0xff00ff, 0, 100, 500, 0 );
addObjectColor( smallCube, 0xff00ff, -150, 50, 500, 0 );
addObjectColor( new THREE.CubeGeometry( 500, 10, 10 ), 0xffff00, 0, 600, 0, Math.PI/4 );
addObjectColor( new THREE.CubeGeometry( 250, 10, 10 ), 0xffff00, 0, 600, 0, 0 );
addObjectColor( new THREE.SphereGeometry( 100, 32, 26 ), 0xffffff, -300, 100, 300, 0 );
// MORPHS
var loader = new THREE.JSONLoader();
loader.load( "models/animated/sittingBox.js", function( geometry ) {
var morphMaterial = new THREE.MeshPhongMaterial( { ambient: 0x222222, color: 0x000000, specular: 0xff9900, shininess: 50, morphTargets: true } );
morphMaterial.shading = THREE.FlatShading;
//geometry.computeVertexNormals();
morph = new THREE.MorphAnimMesh( geometry, morphMaterial );
var s = 200;
morph.scale.set( s, s, s );
morph.duration = 8000;
morph.mirroredLoop = true;
morph.castShadow = true;
morph.receiveShadow = true;
scene.add( morph );
} );
// LIGHTS
var sunIntensity = 0.3,
pointIntensity = 1,
pointColor = 0xffaa00;
if ( DAY ) {
sunIntensity = 1;
pointIntensity = 0.5;
pointColor = 0xffffff;
}
ambientLight = new THREE.AmbientLight( 0xffffff );
ambientLight.color.setHSV( 0.1, 0.9, 0.25 );
scene.add( ambientLight );
pointLight = new THREE.PointLight( 0xffaa00, pointIntensity, 5000 );
pointLight.position.set( 0, 0, 0 );
scene.add( pointLight );
sunLight = new THREE.SpotLight( 0xffffff, sunIntensity );
sunLight.position.set( 1000, 2000, 1000 );
sunLight.castShadow = true;
scene.add( sunLight );
// RENDERER
renderer = new THREE.WebGLRenderer( { clearColor: 0x00aaff, clearAlpha: 1, antialias: false } );
renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
if ( scene.fog )
renderer.setClearColor( scene.fog.color, 1 );
renderer.domElement.style.position = "absolute";
renderer.domElement.style.top = MARGIN + "px";
renderer.domElement.style.left = "0px";
container.appendChild( renderer.domElement );
//
renderer.shadowMapAutoUpdate = false;
renderer.shadowMapEnabled = true;
renderer.shadowMapDarkness = 0.5 * sunIntensity;
renderer.shadowMapBias = 0.00390125;
//
renderer.gammaInput = true;
renderer.gammaOutput = true;
renderer.physicallyBasedShading = true;
// STATS
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
stats.domElement.style.zIndex = 100;
stats.domElement.children[ 0 ].children[ 0 ].style.color = "#222";
stats.domElement.children[ 0 ].style.background = "transparent";
stats.domElement.children[ 0 ].children[ 1 ].style.display = "none";
container.appendChild( stats.domElement );
// EVENTS
window.addEventListener( 'resize', onWindowResize, false );
document.addEventListener( 'keydown', onKeyDown, false );
// COMPOSER
renderer.autoClear = false;
renderTargetParameters = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBFormat, stencilBufer: false };
renderTarget = new THREE.WebGLRenderTarget( SCREEN_WIDTH, SCREEN_HEIGHT, renderTargetParameters );
effectFXAA = new THREE.ShaderPass( THREE.ShaderExtras[ "fxaa" ] );
var effectVignette = new THREE.ShaderPass( THREE.ShaderExtras[ "vignette" ] );
hblur = new THREE.ShaderPass( THREE.ShaderExtras[ "horizontalTiltShift" ] );
vblur = new THREE.ShaderPass( THREE.ShaderExtras[ "verticalTiltShift" ] );
var bluriness = 4;
hblur.uniforms[ 'h' ].value = bluriness / SCREEN_WIDTH;
vblur.uniforms[ 'v' ].value = bluriness / SCREEN_HEIGHT;
hblur.uniforms[ 'r' ].value = vblur.uniforms[ 'r' ].value = 0.5;
effectFXAA.uniforms[ 'resolution' ].value.set( 1 / SCREEN_WIDTH, 1 / SCREEN_HEIGHT );
composer = new THREE.EffectComposer( renderer, renderTarget );
var renderModel = new THREE.RenderPass( scene, camera );
effectVignette.renderToScreen = true;
vblur.renderToScreen = true;
composer = new THREE.EffectComposer( renderer, renderTarget );
composer.addPass( renderModel );
composer.addPass( effectFXAA );
composer.addPass( hblur );
composer.addPass( vblur );
//composer.addPass( effectVignette );
// TWEEN
parameters = { control: 0 };
tweenDirection = -1;
tweenDay = new TWEEN.Tween( parameters ).to( { control: 100 }, 1000 ).easing( TWEEN.Easing.Exponential.EaseOut );
tweenNight = new TWEEN.Tween( parameters ).to( { control: 0 }, 1000 ).easing( TWEEN.Easing.Exponential.EaseOut );
}
//
function onWindowResize( event ) {
SCREEN_WIDTH = window.innerWidth;
SCREEN_HEIGHT = window.innerHeight - 2 * MARGIN;
renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
camera.aspect = SCREEN_WIDTH / SCREEN_HEIGHT;
camera.updateProjectionMatrix();
renderTarget = new THREE.WebGLRenderTarget( SCREEN_WIDTH, SCREEN_HEIGHT, renderTargetParameters );
composer.reset( renderTarget );
hblur.uniforms[ 'h' ].value = 4 / SCREEN_WIDTH;
vblur.uniforms[ 'v' ].value = 4 / SCREEN_HEIGHT;
effectFXAA.uniforms[ 'resolution' ].value.set( 1 / SCREEN_WIDTH, 1 / SCREEN_HEIGHT );
}
//
function onKeyDown ( event ) {
switch( event.keyCode ) {
case 78: /*N*/ if ( tweenDirection == 1 ) {
tweenDay.stop();
tweenNight.start();
tweenDirection = -1;
} else {
tweenNight.stop();
tweenDay.start();
tweenDirection = 1;
}
break;
}
}
//
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
}
function render() {
// update
var delta = 1000 * clock.getDelta();
TWEEN.update();
controls.update();
if ( morph ) morph.updateAnimation( delta );
scene.fog.color.setHSV( 0.13, 0.25, THREE.Math.mapLinear( parameters.control, 0, 100, 0.1, 0.99 ) );
renderer.setClearColor( scene.fog.color, 1 );
sunLight.intensity = THREE.Math.mapLinear( parameters.control, 0, 100, 0.3, 1 );
pointLight.intensity = THREE.Math.mapLinear( parameters.control, 0, 100, 1, 0.5 );
pointLight.color.setHSV( 0.1, THREE.Math.mapLinear( parameters.control, 0, 100, 0.99, 0 ), 0.9 );
renderer.shadowMapDarkness = 0.5 * sunLight.intensity;
// render shadow map
renderer.autoUpdateObjects = false;
renderer.initWebGLObjects( scene );
renderer.updateShadowMap( scene, camera );
// render cube map
mesh.visible = false;
renderer.autoClear = true;
cubeCamera.updatePosition( mesh.position );
cubeCamera.updateCubeMap( renderer, scene );
renderer.autoClear = false;
mesh.visible = true;
// render scene
renderer.autoUpdateObjects = true;
//renderer.render( scene, camera );
//renderer.clearTarget( null, 1, 1, 1 );
composer.render( 0.1 );
}
</script>
</body>
</html>