javascript
/
three.js
mirror of https://github.com/tazdij/three.js.git


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146114711481149115011511152115311541155115611571158115911601161116211631164116511661167116811691170117111721173117411751176117711781179118011811182118311841185118611871188118911901191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260126112621263126412651266126712681269127012711272127312741275127612771278127912801281128212831284128512861287128812891290129112921293129412951296129712981299130013011302130313041305130613071308130913101311131213131314131513161317131813191320132113221323132413251326132713281329133013311332133313341335133613371338133913401341134213431344134513461347134813491350135113521353135413551356135713581359136013611362136313641365136613671368136913701371137213731374137513761377137813791380138113821383138413851386138713881389139013911392139313941395139613971398139914001401140214031404140514061407140814091410141114121413141414151416141714181419142014211422142314241425142614271428142914301431143214331434143514361437143814391440144114421443144414451446144714481449145014511452145314541455145614571458145914601461146214631464146514661467146814691470147114721473147414751476147714781479148014811482148314841485148614871488148914901491149214931494149514961497149814991500150115021503150415051506150715081509151015111512151315141515151615171518151915201521152215231524152515261527152815291530153115321533153415351536153715381539154015411542154315441545154615471548154915501551155215531554155515561557155815591560156115621563156415651566156715681569157015711572157315741575157615771578157915801581158215831584158515861587158815891590159115921593159415951596159715981599160016011602160316041605160616071608160916101611161216131614161516161617161816191620162116221623162416251626162716281629163016311632163316341635163616371638163916401641164216431644164516461647164816491650165116521653165416551656165716581659
							<!doctype html>
<html lang="en">
	<head>
		<title>WebGL NodeMaterial</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;
				margin: 0px;
				text-align:center;
				overflow: hidden;
			}

			#info {
				color: #fff;
				position: absolute;
				top: 10px;
				width: 100%;
				text-align: center;
				display:block;
			}

			a { color: white }
		</style>
	</head>
	<body>

		<div id="container"></div>
		<div id="info">
			<a href="http://threejs.org" target="_blank">three.js</a> - Node-Based Material
		</div>

		<script src="../build/three.min.js"></script>

		<script src='js/geometries/TeapotBufferGeometry.js'></script>
		<script src="js/controls/OrbitControls.js"></script>
		<script src="js/libs/dat.gui.min.js"></script>

		<!-- NodeLibrary -->
		<script src="js/nodes/GLNode.js"></script>
		<script src="js/nodes/RawNode.js"></script>
		<script src="js/nodes/TempNode.js"></script>
		<script src="js/nodes/InputNode.js"></script>
		<script src="js/nodes/ConstNode.js"></script>
		<script src="js/nodes/FunctionNode.js"></script>
		<script src="js/nodes/FunctionCallNode.js"></script>
		<script src="js/nodes/BuilderNode.js"></script>
		<script src="js/nodes/NodeLib.js"></script>
		<script src="js/nodes/NodeMaterial.js"></script>

		<!-- Accessors -->
		<script src="js/nodes/accessors/PositionNode.js"></script>
		<script src="js/nodes/accessors/NormalNode.js"></script>
		<script src="js/nodes/accessors/UVNode.js"></script>
		<script src="js/nodes/accessors/ColorsNode.js"></script>
		<script src="js/nodes/accessors/CameraNode.js"></script>
		<script src="js/nodes/accessors/ReflectNode.js"></script>
		<script src="js/nodes/accessors/LightNode.js"></script>

		<!-- Inputs -->
		<script src="js/nodes/inputs/IntNode.js"></script>
		<script src="js/nodes/inputs/FloatNode.js"></script>
		<script src="js/nodes/inputs/ColorNode.js"></script>
		<script src="js/nodes/inputs/Vector2Node.js"></script>
		<script src="js/nodes/inputs/Vector3Node.js"></script>
		<script src="js/nodes/inputs/Vector4Node.js"></script>
		<script src="js/nodes/inputs/TextureNode.js"></script>
		<script src="js/nodes/inputs/CubeTextureNode.js"></script>

		<!-- Math -->
		<script src="js/nodes/math/Math1Node.js"></script>
		<script src="js/nodes/math/Math2Node.js"></script>
		<script src="js/nodes/math/Math3Node.js"></script>
		<script src="js/nodes/math/OperatorNode.js"></script>

		<!-- Utils -->
		<script src="js/nodes/utils/SwitchNode.js"></script>
		<script src="js/nodes/utils/JoinNode.js"></script>
		<script src="js/nodes/utils/TimerNode.js"></script>
		<script src="js/nodes/utils/RoughnessToBlinnExponentNode.js"></script>
		<script src="js/nodes/utils/VelocityNode.js"></script>
		<script src="js/nodes/utils/LuminanceNode.js"></script>
		<script src="js/nodes/utils/ColorAdjustmentNode.js"></script>
		<script src="js/nodes/utils/NoiseNode.js"></script>

		<!-- Phong Material -->
		<script src="js/nodes/materials/PhongNode.js"></script>
		<script src="js/nodes/materials/PhongNodeMaterial.js"></script>

		<!-- Standard Material -->
		<script src="js/nodes/materials/StandardNode.js"></script>
		<script src="js/nodes/materials/StandardNodeMaterial.js"></script>

		<script>

		var container = document.getElementById( 'container' );

		var renderer, scene, camera, clock = new THREE.Clock(), fov = 50;
		var teapot, mesh;
		var controls;
		var move = false;
		var gui, guiElements = [];

		var param = { example: 'standard' };

		var brick = new THREE.TextureLoader().load( 'textures/brick_diffuse.jpg' );
		var grass = new THREE.TextureLoader().load( 'textures/terrain/grasslight-big.jpg' );
		var grassNormal = new THREE.TextureLoader().load( 'textures/terrain/grasslight-big-nm.jpg' );

		var decalDiffuse = new THREE.TextureLoader().load( 'textures/decal/decal-diffuse.png' );
		decalDiffuse.wrapS = decalDiffuse.wrapT = THREE.RepeatWrapping;

		var cloud = new THREE.TextureLoader().load( 'textures/lava/cloud.png' );
		cloud.wrapS = cloud.wrapT = THREE.RepeatWrapping;

		var cubemap = function() {

			var path = "textures/cube/Park2/";
			var format = '.jpg';
			var urls = [
					path + 'posx' + format, path + 'negx' + format,
					path + 'posy' + format, path + 'negy' + format,
					path + 'posz' + format, path + 'negz' + format
				];

			var textureCube = new THREE.CubeTextureLoader().load( urls );
			textureCube.format = THREE.RGBFormat;

			return textureCube;

		}();

		window.addEventListener( 'load', init );

		function init() {

			renderer = new THREE.WebGLRenderer( { antialias: true } );
			renderer.setPixelRatio( window.devicePixelRatio );
			renderer.setSize( window.innerWidth, window.innerHeight );
			container.appendChild( renderer.domElement );

			scene = new THREE.Scene();

			camera = new THREE.PerspectiveCamera( fov, window.innerWidth / window.innerHeight, 1, 1000 );
			camera.position.x = 50;
			camera.position.z = - 50;
			camera.position.y = 30;
			camera.target = new THREE.Vector3();

			controls = new THREE.OrbitControls( camera, renderer.domElement );
			controls.minDistance = 50;
			controls.maxDistance = 200;

			scene.add( new THREE.AmbientLight( 0x464646 ) );

			var light = new THREE.DirectionalLight( 0xffddcc, 1 );
			light.position.set( 1, 0.75, 0.5 );
			scene.add( light );

			var light = new THREE.DirectionalLight( 0xccccff, 1 );
			light.position.set( - 1, 0.75, - 0.5 );
			scene.add( light );

			teapot = new THREE.TeapotBufferGeometry( 15, 18 );

			mesh = new THREE.Mesh( teapot );
			scene.add( mesh );

			window.addEventListener( 'resize', onWindowResize, false );

			updateMaterial();

			onWindowResize();
			animate();

		}

		function clearGui() {

			if ( gui ) gui.destroy();

			gui = new dat.GUI();

			var example = gui.add( param, 'example', {
				'basic / standard (PBR)': 'standard',
				'basic / phong': 'phong',
				'basic / layers': 'layers',
				'basic / rim': 'rim',
				'basic / color-adjustment': 'color-adjustment',
				'adv / fresnel': 'fresnel',
				'adv / saturation': 'saturation',
				'adv / top-bottom': 'top-bottom',
				'adv / skin': 'skin',
				'adv / skin-phong': 'skin-phong',
				'adv / caustic': 'caustic',
				'adv / displace': 'displace',
				'adv / plush': 'plush',
				'adv / toon': 'toon',
				'adv / camera-depth': 'camera-depth',
				'adv / soft-body': 'soft-body',
				'adv / wave': 'wave',
				'misc / smoke' : 'smoke',
				'misc / firefly' : 'firefly'
			} ).onFinishChange( function() {

				updateMaterial();

			} );

			gui.open();

		}

		function addGui( name, value, callback, isColor, min, max ) {

			var node;

			param[ name ] = value;

			if ( isColor ) {

				node = gui.addColor( param, name ).onChange( function() {

					callback( param[ name ] );

				} );

			}
			else if ( typeof value == 'object' ) {

				node = gui.add( param, name, value ).onChange( function() {

					callback( param[ name ] );

				} );

			}
			else {

				node = gui.add( param, name, min, max ).onChange( function() {

					callback( param[ name ] );

				} );

			}

			return node;

		}

		function updateMaterial() {

			move = false;

			if ( mesh.material ) mesh.material.dispose();

			var name = param.example;
			var mtl;

			clearGui();

			switch ( name ) {

				case 'phong':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					//mtl.color = // albedo (vec3)
					//mtl.alpha = // opacity (float)
					//mtl.specular = // specular color (vec3)
					//mtl.shininess = // shininess (float)
					//mtl.normal = // normalmap (vec3)
					//mtl.normalScale = // normalmap scale (vec2)
					//mtl.emissive = // emissive color (vec3)
					//mtl.ambient = // ambient color (vec3)
					//mtl.shadow = // shadowmap (vec3)
					//mtl.light = // custom-light (vec3)
					//mtl.ao = // ambient occlusion (float)
					//mtl.light = // input/output light (vec3)
					//mtl.environment = // reflection/refraction (vec3)
					//mtl.environmentAlpha = // environment alpha (float)
					//mtl.transform = // vertex transformation (vec3)

					var mask = new THREE.SwitchNode( new THREE.TextureNode( decalDiffuse ), 'w' );

					mtl.color = new THREE.TextureNode( grass );
					mtl.specular = new THREE.FloatNode( .5 );
					mtl.shininess = new THREE.FloatNode( 15 );
					mtl.environment = new THREE.CubeTextureNode( cubemap );
					mtl.environmentAlpha = mask;
					mtl.normal = new THREE.TextureNode( grassNormal );
					mtl.normalScale = new THREE.Math1Node( mask, THREE.Math1Node.INVERT );

					break;

				case 'standard':

					// MATERIAL

					mtl = new THREE.StandardNodeMaterial();

					//mtl.color = // albedo (vec3)
					//mtl.alpha = // opacity (float)
					//mtl.roughness = // roughness (float)
					//mtl.metalness = // metalness (float)
					//mtl.normal = // normalmap (vec3)
					//mtl.normalScale = // normalmap scale (vec2)
					//mtl.emissive = // emissive color (vec3)
					//mtl.ambient = // ambient color (vec3)
					//mtl.shadow = // shadowmap (vec3)
					//mtl.light = // custom-light (vec3)
					//mtl.ao = // ambient occlusion (float)
					//mtl.environment = // reflection/refraction (vec3)
					//mtl.transform = // vertex transformation (vec3)

					var mask = new THREE.SwitchNode( new THREE.TextureNode( decalDiffuse ), 'w' );

					var normalScale = new THREE.FloatNode( .3 );

					var roughnessA = new THREE.FloatNode( .5 );
					var metalnessA = new THREE.FloatNode( .5 );

					var roughnessB = new THREE.FloatNode( 0 );
					var metalnessB = new THREE.FloatNode( 1 );

					var roughness = new THREE.Math3Node(
						roughnessA,
						roughnessB,
						mask,
						THREE.Math3Node.MIX
					);

					var metalness = new THREE.Math3Node(
						metalnessA,
						metalnessB,
						mask,
						THREE.Math3Node.MIX
					);

					var normalMask = new THREE.OperatorNode(
						new THREE.Math1Node( mask, THREE.Math1Node.INVERT ),
						normalScale,
						THREE.OperatorNode.MUL
					);

					mtl.color = new THREE.ColorNode( 0xFFFFFF );
					mtl.roughness = roughness;
					mtl.metalness = metalness;
					mtl.environment = new THREE.CubeTextureNode( cubemap );
					mtl.normal = new THREE.TextureNode( grassNormal );
					mtl.normalScale = normalMask;

					// GUI

					addGui( 'color', mtl.color.value.getHex(), function( val ) {

						mtl.color.value.setHex( val );

					}, true );

					addGui( 'roughnessA', roughnessA.number, function( val ) {

						 roughnessA.number = val;

					}, false, 0, 1 );

					addGui( 'metalnessA', metalnessA.number, function( val ) {

						metalnessA.number = val;

					}, false, 0, 1 );

					addGui( 'roughnessB', roughnessB.number, function( val ) {

						 roughnessB.number = val;

					}, false, 0, 1 );

					addGui( 'metalnessB', metalnessB.number, function( val ) {

						metalnessB.number = val;

					}, false, 0, 1 );

					addGui( 'normalScale', normalScale.number, function( val ) {

						normalScale.number = val;

					}, false, 0, 1 );

					break;

				case 'wave':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var time = new THREE.TimerNode();
					var speed = new THREE.FloatNode( 5 );
					var scale = new THREE.FloatNode( 1 );
					var worldScale = new THREE.FloatNode( .4 );
					var colorA = new THREE.ColorNode( 0xFFFFFF );
					var colorB = new THREE.ColorNode( 0x0054df );

					var uv = new THREE.UVNode();

					var timeScale = new THREE.OperatorNode(
						time,
						speed,
						THREE.OperatorNode.MUL
					);

					var worldScl = new THREE.OperatorNode(
						new THREE.PositionNode(),
						worldScale,
						THREE.OperatorNode.MUL
					);

					var posContinuous = new THREE.OperatorNode(
						worldScl,
						timeScale,
						THREE.OperatorNode.ADD
					);

					var wave = new THREE.Math1Node( posContinuous, THREE.Math1Node.SIN );
					wave = new THREE.SwitchNode( wave, 'x' );

					var waveScale = new THREE.OperatorNode(
						wave,
						scale,
						THREE.OperatorNode.MUL
					);

					var displaceY = new THREE.JoinNode(
						new THREE.FloatNode(),
						waveScale,
						new THREE.FloatNode()
					);

					var displace = new THREE.OperatorNode(
						new THREE.NormalNode(),
						displaceY,
						THREE.OperatorNode.MUL
					);

					var blend = new THREE.OperatorNode(
						new THREE.PositionNode(),
						displaceY,
						THREE.OperatorNode.ADD
					);

					var color = new THREE.Math3Node(
						colorB,
						colorA,
						wave,
						THREE.Math3Node.MIX
					);

					mtl.color = color;
					mtl.transform = blend;

					// GUI

					addGui( 'speed', speed.number, function( val ) {

						speed.number = val;

					}, false, 0, 10 );

					addGui( 'scale', scale.number, function( val ) {

						scale.number = val;

					}, false, 0, 3 );

					addGui( 'worldScale', worldScale.number, function( val ) {

						worldScale.number = val;

					}, false, 0, 1 );

					addGui( 'colorA', colorA.value.getHex(), function( val ) {

						colorA.value.setHex( val );

					}, true );

					addGui( 'colorB', colorB.value.getHex(), function( val ) {

						colorB.value.setHex( val );

					}, true );

					addGui( 'useNormals', false, function( val ) {

						blend.b = val ? displace : displaceY;

						mtl.build();

					} );

					break;

				case 'rim':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var intensity = 1.3;
					var power = new THREE.FloatNode( 3 );
					var color = new THREE.ColorNode( 0xFFFFFF );

					var viewZ = new THREE.Math2Node(
						new THREE.NormalNode( THREE.NormalNode.VIEW ),
						new THREE.Vector3Node( 0, 0, - intensity ),
						THREE.Math2Node.DOT
					);

					var rim = new THREE.OperatorNode(
						viewZ,
						new THREE.FloatNode( intensity ),
						THREE.OperatorNode.ADD
					);

					var rimPower = new THREE.Math2Node(
						rim,
						power,
						THREE.Math2Node.POW
					);

					var rimColor = new THREE.OperatorNode(
						rimPower,
						color,
						THREE.OperatorNode.MUL
					);

					mtl.color = new THREE.ColorNode( 0x111111 );
					mtl.emissive = rimColor;

					// GUI

					addGui( 'color', color.value.getHex(), function( val ) {

						color.value.setHex( val );

					}, true );

					addGui( 'intensity', intensity, function( val ) {

						intensity = val;

						viewZ.b.z = - intensity;
						rim.b.number = intensity;


					}, false, 0, 3 );

					addGui( 'power', power.number, function( val ) {

						power.number = val;

					}, false, 0, 6 );

					addGui( 'xray', false, function( val ) {

						if ( val ) {

							mtl.emissive = color;
							mtl.alpha = rimPower;
							mtl.blending = THREE.AdditiveBlending;
							mtl.depthWrite = false;

						}
						else {

							mtl.emissive = rimColor;
							mtl.alpha = null;
							mtl.blending = THREE.NormalBlending;
							mtl.depthWrite = true;

						}

						mtl.build();

					} );

					break;

				case 'color-adjustment':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var texture = new THREE.TextureNode( brick );

					var hue = new THREE.FloatNode();
					var sataturation = new THREE.FloatNode( 1 );
					var vibrance = new THREE.FloatNode();
					var brightness = new THREE.FloatNode( 0 );
					var contrast = new THREE.FloatNode( 1 );

					var hueNode = new THREE.ColorAdjustmentNode( texture, hue, THREE.ColorAdjustmentNode.HUE );
					var satNode = new THREE.ColorAdjustmentNode( hueNode, sataturation, THREE.ColorAdjustmentNode.SATURATION );
					var vibranceNode = new THREE.ColorAdjustmentNode( satNode, vibrance, THREE.ColorAdjustmentNode.VIBRANCE );
					var brightnessNode = new THREE.ColorAdjustmentNode( vibranceNode, brightness, THREE.ColorAdjustmentNode.BRIGHTNESS );
					var contrastNode = new THREE.ColorAdjustmentNode( brightnessNode, contrast, THREE.ColorAdjustmentNode.CONTRAST );

					mtl.color = contrastNode;

					// GUI

					addGui( 'hue', hue.number, function( val ) {

						hue.number = val;

					}, false, 0, Math.PI * 2 );

					addGui( 'saturation', sataturation.number, function( val ) {

						sataturation.number = val;

					}, false, 0, 2 );

					addGui( 'vibrance', vibrance.number, function( val ) {

						vibrance.number = val;

					}, false, - 1, 1 );

					addGui( 'brightness', brightness.number, function( val ) {

						brightness.number = val;

					}, false, 0, .5 );

					addGui( 'contrast', contrast.number, function( val ) {

						contrast.number = val;

					}, false, 0, 2 );

					break;

				case 'fresnel':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var reflectance = new THREE.FloatNode( 1.3 );
					var power = new THREE.FloatNode( 1 );
					var color = new THREE.CubeTextureNode( cubemap );

					var viewZ = new THREE.Math2Node(
						new THREE.NormalNode( THREE.NormalNode.VIEW ),
						new THREE.Vector3Node( 0, 0, - 1 ),
						THREE.Math2Node.DOT
					);

					var theta = new THREE.OperatorNode(
						viewZ,
						new THREE.FloatNode( 1 ),
						THREE.OperatorNode.ADD
					);

					var thetaPower = new THREE.Math2Node(
						theta,
						power,
						THREE.Math2Node.POW
					);

					var fresnel = new THREE.OperatorNode(
						reflectance,
						thetaPower,
						THREE.OperatorNode.MUL
					);

					mtl.color = new THREE.ColorNode( 0x3399FF );
					mtl.environment = color;
					mtl.environmentAlpha = new THREE.Math1Node( fresnel, THREE.Math1Node.SAT );

					// GUI

					addGui( 'reflectance', reflectance.number, function( val ) {

						reflectance.number = val;

					}, false, 0, 3 );

					addGui( 'power', power.number, function( val ) {

						power.number = val;

					}, false, 0, 5 );

					break;

				case 'layers':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var tex1 = new THREE.TextureNode( grass );
					var tex2 = new THREE.TextureNode( brick );

					var offset = new THREE.FloatNode( 0 );
					var scale = new THREE.FloatNode( 1 );
					var uv = new THREE.UVNode();

					var uvOffset = new THREE.OperatorNode(
						offset,
						uv,
						THREE.OperatorNode.ADD
					);

					var uvScale = new THREE.OperatorNode(
						uvOffset,
						scale,
						THREE.OperatorNode.MUL
					);

					var mask = new THREE.TextureNode( decalDiffuse, uvScale );
					var maskAlphaChannel = new THREE.SwitchNode( mask, 'w' );

					var blend = new THREE.Math3Node(
						tex1,
						tex2,
						maskAlphaChannel,
						THREE.Math3Node.MIX
					);

					mtl.color = blend;

					// GUI

					addGui( 'offset', offset.number, function( val ) {

						offset.number = val;

					}, false, 0, 1 );

					addGui( 'scale', scale.number, function( val ) {

						scale.number = val;

					}, false, 0, 10 );

					break;

				case 'saturation':

					// MATERIAL

					mtl = new THREE.StandardNodeMaterial();

					var tex = new THREE.TextureNode( brick );
					var sat = new THREE.FloatNode( 0 );

					var satrgb = new THREE.FunctionNode( [
					"vec3 satrgb(vec3 rgb, float adjustment) {",
						//"const vec3 W = vec3(0.2125, 0.7154, 0.0721);", // LUMA
						"vec3 intensity = vec3(dot(rgb, LUMA));",
						"return mix(intensity, rgb, adjustment);",
					"}"
					].join( "\n" ) );

					var saturation = new THREE.FunctionCallNode( satrgb );
					saturation.inputs.rgb = tex;
					saturation.inputs.adjustment = sat;

					// or try

					//saturation.inputs[0] = tex;
					//saturation.inputs[1] = sat;

					mtl.color = saturation;
					mtl.environment = new THREE.CubeTextureNode( cubemap ); // optional

					// GUI

					addGui( 'saturation', sat.number, function( val ) {

						sat.number = val;

					}, false, 0, 2 );

					break;

				case 'top-bottom':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var top = new THREE.TextureNode( grass );
					var bottom = new THREE.TextureNode( brick );

					var normal = new THREE.NormalNode( THREE.NormalNode.WORLD );
					var normalY = new THREE.SwitchNode( normal, 'y' );

					var hard = new THREE.FloatNode( 9 );
					var offset = new THREE.FloatNode( - 2.5 );

					var hardClamp = new THREE.OperatorNode(
						normalY,
						hard,
						THREE.OperatorNode.MUL
					);

					var offsetClamp = new THREE.OperatorNode(
						hardClamp,
						offset,
						THREE.OperatorNode.ADD
					);

					var clamp0at1 = new THREE.Math1Node( offsetClamp, THREE.Math1Node.SAT );

					var blend = new THREE.Math3Node( top, bottom, clamp0at1, THREE.Math3Node.MIX );

					mtl.color = blend;

					// GUI

					addGui( 'hard', hard.number, function( val ) {

						hard.number = val;

					}, false, 0, 20 );

					addGui( 'offset', offset.number, function( val ) {

						offset.number = val;

					}, false, - 10, 10 );

					break;

				case 'displace':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var time = new THREE.TimerNode();
					var scale = new THREE.FloatNode( 2 );
					var speed = new THREE.FloatNode( .2 );
					var colorA = new THREE.ColorNode( 0xFFFFFF );
					var colorB = new THREE.ColorNode( 0x0054df );

					var uv = new THREE.UVNode();

					var timeScl = new THREE.OperatorNode(
						time,
						speed,
						THREE.OperatorNode.MUL
					);

					var displaceOffset = new THREE.OperatorNode(
						timeScl,
						uv,
						THREE.OperatorNode.ADD
					);

					var tex = new THREE.TextureNode( cloud, displaceOffset );
					var texArea = new THREE.SwitchNode( tex, 'w' );

					var displace = new THREE.OperatorNode(
						new THREE.NormalNode(),
						texArea,
						THREE.OperatorNode.MUL
					);

					var displaceScale = new THREE.OperatorNode(
						displace,
						scale,
						THREE.OperatorNode.MUL
					);

					var blend = new THREE.OperatorNode(
						new THREE.PositionNode(),
						displaceScale,
						THREE.OperatorNode.ADD
					);

					var color = new THREE.Math3Node(
						colorB,
						colorA,
						texArea,
						THREE.Math3Node.MIX
					);

					mtl.color = mtl.specular = new THREE.ColorNode( 0 );
					mtl.emissive = color;
					mtl.transform = blend;

					// GUI

					addGui( 'speed', speed.number, function( val ) {

						speed.number = val;

					}, false, 0, 1 );

					addGui( 'scale', scale.number, function( val ) {

						scale.number = val;

					}, false, 0, 10 );

					addGui( 'colorA', colorA.value.getHex(), function( val ) {

						colorA.value.setHex( val );

					}, true );

					addGui( 'colorB', colorB.value.getHex(), function( val ) {

						colorB.value.setHex( val );

					}, true );

					break;

				case 'smoke':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var time = new THREE.TimerNode();
					var uv = new THREE.UVNode();

					var timeSpeedA = new THREE.OperatorNode(
						time,
						new THREE.Vector2Node( 0.3, 0.1 ),
						THREE.OperatorNode.MUL
					);

					var timeSpeedB = new THREE.OperatorNode(
						time,
						new THREE.Vector2Node( 0.15, 0.4 ),
						THREE.OperatorNode.MUL
					);

					var uvOffsetA = new THREE.OperatorNode(
						timeSpeedA,
						uv,
						THREE.OperatorNode.ADD
					);

					var uvOffsetB = new THREE.OperatorNode(
						timeSpeedB,
						uv,
						THREE.OperatorNode.ADD
					);

					var cloudA = new THREE.TextureNode( cloud, uvOffsetA );
					var cloudB = new THREE.TextureNode( cloud, uvOffsetB );

					var clouds = new THREE.OperatorNode(
						cloudA,
						cloudB,
						THREE.OperatorNode.ADD
					);

					mtl.environment = new THREE.ColorNode( 0xFFFFFF );
					mtl.alpha = clouds;

					// GUI

					addGui( 'color', mtl.environment.value.getHex(), function( val ) {

						mtl.environment.value.setHex( val );

					}, true );

					break;

				case 'camera-depth':

					// MATERIAL

					var colorA = new THREE.ColorNode( 0xFFFFFF );
					var colorB = new THREE.ColorNode( 0x0054df );

					var depth = new THREE.CameraNode( THREE.CameraNode.DEPTH );
					depth.near.number = 1;
					depth.far.number = 200;

					var colors = new THREE.Math3Node(
						colorB,
						colorA,
						depth,
						THREE.Math3Node.MIX
					);

					mtl = new THREE.PhongNodeMaterial();
					mtl.color = colors;

					// GUI

					addGui( 'near', depth.near.number, function( val ) {

						depth.near.number = val;

					}, false, 1, 1200 );

					addGui( 'far', depth.far.number, function( val ) {

						depth.far.number = val;

					}, false, 1, 1200 );

					addGui( 'nearColor', colorA.value.getHex(), function( val ) {

						colorA.value.setHex( val );

					}, true );

					addGui( 'farColor', colorB.value.getHex(), function( val ) {

						colorB.value.setHex( val );

					}, true );

					break;

				case 'caustic':

					// MATERIAL

					mtl = new THREE.StandardNodeMaterial();

					var hash2 = new THREE.FunctionNode( [
					"vec2 hash2(vec2 p) {",
						"return fract(sin(vec2(dot(p, vec2(123.4, 748.6)), dot(p, vec2(547.3, 659.3))))*5232.85324);",
					"}"
					].join( "\n" ) );

					var voronoi = new THREE.FunctionNode( [
					// Based off of iq's described here: http://www.iquilezles.org/www/articles/voronoili
					"float voronoi(vec2 p, in float time) {",
						"vec2 n = floor(p);",
						"vec2 f = fract(p);",
						"float md = 5.0;",
						"vec2 m = vec2(0.0);",
						"for (int i = -1; i <= 1; i++) {",
							"for (int j = -1; j <= 1; j++) {",
								"vec2 g = vec2(i, j);",
								"vec2 o = hash2(n + g);",
								"o = 0.5 + 0.5 * sin(time + 5.038 * o);",
								"vec2 r = g + o - f;",
								"float d = dot(r, r);",
								"if (d < md) {",
									"md = d;",
									"m = n+g+o;",
								"}",
							"}",
						"}",
						"return md;",
					"}"
					].join( "\n" ), [ hash2 ] ); // define hash2 as dependencies

					var voronoiLayers = new THREE.FunctionNode( [
					// based on https://www.shadertoy.com/view/4tXSDf
					"float voronoiLayers(vec2 p, in float time) {",
						"float v = 0.0;",
						"float a = 0.4;",
						"for (int i = 0; i < 3; i++) {",
							"v += voronoi(p, time) * a;",
							"p *= 2.0;",
							"a *= 0.5;",
						"}",
						"return v;",
					"}"
					].join( "\n" ), [ voronoi ] ); // define voronoi as dependencies

					var time = new THREE.TimerNode();
					var timeScale = new THREE.FloatNode( 2 );

					var alpha = new THREE.FloatNode( 1 );
					var scale = new THREE.FloatNode( .1 );
					var intensity = new THREE.FloatNode( 1.5 );

					var color = new THREE.ColorNode( 0xFFFFFF );
					var colorA = new THREE.ColorNode( 0xFFFFFF );
					var colorB = new THREE.ColorNode( 0x0054df );

					var worldPos = new THREE.PositionNode( THREE.PositionNode.WORLD );
					var worldPosTop = new THREE.SwitchNode( worldPos, 'xz' );

					var worldNormal = new THREE.NormalNode( THREE.NormalNode.WORLD );

					var mask = new THREE.SwitchNode( worldNormal, 'y' );

					// clamp0at1
					mask = new THREE.Math1Node( mask, THREE.Math1Node.SAT );

					var timeOffset = new THREE.OperatorNode(
						time,
						timeScale,
						THREE.OperatorNode.MUL
					);

					var uvPos = new THREE.OperatorNode(
						worldPosTop,
						scale,
						THREE.OperatorNode.MUL
					);

					var voronoi = new THREE.FunctionCallNode( voronoiLayers );
					voronoi.inputs.p = uvPos;
					voronoi.inputs.time = timeOffset;

					var maskCaustic = new THREE.OperatorNode(
						alpha,
						mask,
						THREE.OperatorNode.MUL
					);

					var voronoiIntensity = new THREE.OperatorNode(
						voronoi,
						intensity,
						THREE.OperatorNode.MUL
					);

					var voronoiColors = new THREE.Math3Node(
						colorB,
						colorA,
						new THREE.Math1Node( voronoiIntensity, THREE.Math1Node.SAT ), // mix needs clamp
						THREE.Math3Node.MIX
					);

					var caustic = new THREE.Math3Node(
						color,
						voronoiColors,
						maskCaustic,
						THREE.Math3Node.MIX
					);

					var causticLights = new THREE.OperatorNode(
						voronoiIntensity,
						maskCaustic,
						THREE.OperatorNode.MUL
					);

					mtl.color = caustic;
					mtl.ambient = causticLights;

					// GUI

					addGui( 'timeScale', timeScale.number, function( val ) {

						timeScale.number = val;

					}, false, 0, 5 );

					addGui( 'intensity', intensity.number, function( val ) {

						intensity.number = val;

					}, false, 0, 3 );

					addGui( 'scale', scale.number, function( val ) {

						scale.number = val;

					}, false, 0, 1 );

					addGui( 'alpha', alpha.number, function( val ) {

						alpha.number = val;

					}, false, 0, 1 );

					addGui( 'color', color.value.getHex(), function( val ) {

						color.value.setHex( val );

					}, true );

					addGui( 'colorA', colorA.value.getHex(), function( val ) {

						colorA.value.setHex( val );

					}, true );

					addGui( 'colorB', colorB.value.getHex(), function( val ) {

						colorB.value.setHex( val );

					}, true );

					break;

				case 'soft-body':

					// MATERIAL

					move = true;

					mtl = new THREE.StandardNodeMaterial();

					var scale = new THREE.FloatNode( 2 );
					var colorA = new THREE.ColorNode( 0xFF6633 );
					var colorB = new THREE.ColorNode( 0x3366FF );

					var pos = new THREE.PositionNode();
					var posNorm = new THREE.Math1Node( pos, THREE.Math1Node.NORMALIZE );

					var mask = new THREE.SwitchNode( posNorm, 'y' );

					var velocity = new THREE.VelocityNode( mesh, {
						type: 'elastic',
						spring: .8,
						friction: .9
					} );

					var velocityArea = new THREE.OperatorNode(
						mask,
						scale,
						THREE.OperatorNode.MUL
					);

					var softVelocity = new THREE.OperatorNode(
						velocity,
						velocityArea,
						THREE.OperatorNode.MUL
					);

					var softPosition = new THREE.OperatorNode(
						new THREE.PositionNode(),
						softVelocity,
						THREE.OperatorNode.ADD
					);

					var colors = new THREE.Math3Node(
						colorB,
						colorA,
						mask,
						THREE.Math3Node.MIX
					);

					mtl.color = colors;
					mtl.transform = softPosition;

					// GUI

					addGui( 'spring', velocity.params.spring, function( val ) {

						velocity.params.spring = val;

					}, false, 0, .9 );

					addGui( 'friction', velocity.params.friction, function( val ) {

						velocity.params.friction = val;

					}, false, 0, .9 );

					addGui( 'scale', scale.number, function( val ) {

						scale.number = val;

					}, false, 0, 3 );

					addGui( 'softBody', colorA.value.getHex(), function( val ) {

						colorA.value.setHex( val );

					}, true );

					addGui( 'hardBody', colorB.value.getHex(), function( val ) {

						colorB.value.setHex( val );

					}, true );

					break;

				case 'plush':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var color = new THREE.ColorNode( 0x8D8677 );
					var mildness = new THREE.FloatNode( 1.6 );
					var fur = new THREE.FloatNode( .5 );

					var posDirection = new THREE.Math1Node( new THREE.PositionNode( THREE.PositionNode.VIEW ), THREE.Math1Node.NORMALIZE );
					var norDirection = new THREE.Math1Node( new THREE.NormalNode( THREE.NormalNode.VIEW ), THREE.Math1Node.NORMALIZE );

					var viewZ = new THREE.Math2Node(
						posDirection,
						norDirection,
						THREE.Math2Node.DOT
					);

					// without luma correction for now
					var mildnessColor = new THREE.OperatorNode(
						color,
						mildness,
						THREE.OperatorNode.MUL
					);

					var furScale = new THREE.OperatorNode(
						viewZ,
						fur,
						THREE.OperatorNode.MUL
					);

					mtl.color = color;
					mtl.normal = new THREE.TextureNode( grassNormal );
					mtl.normalScale = furScale;
					mtl.environment = mildnessColor;
					mtl.environmentAlpha = new THREE.Math1Node( viewZ, THREE.Math1Node.INVERT );
					mtl.shininess = new THREE.FloatNode( 0 );

					// GUI

					addGui( 'color', color.value.getHex(), function( val ) {

						color.value.setHex( val );

					}, true );

					addGui( 'mildness', mildness.number, function( val ) {

						mildness.number = val;

					}, false, 1, 2 );

					addGui( 'fur', fur.number, function( val ) {

						fur.number = val;

					}, false, 0, 2 );

					break;

				case 'skin':
				case 'skin-phong':

					// MATERIAL

					mtl = name == 'skin' ? new THREE.StandardNodeMaterial() : new THREE.PhongNodeMaterial();

					var skinColor = new THREE.ColorNode( 0xFFC495 );
					var bloodColor = new THREE.ColorNode( 0x6b0602 );
					var wrapLight = new THREE.FloatNode( 1.5 );
					var wrapShadow = new THREE.FloatNode( 0 );

					var directLight = new THREE.LightNode();

					var lightLuminance = new THREE.LuminanceNode( directLight );

					var lightWrap = new THREE.Math3Node(
						wrapShadow,
						wrapLight,
						lightLuminance,
						THREE.Math3Node.SMOOTHSTEP
					);

					var lightTransition = new THREE.OperatorNode(
						lightWrap,
						new THREE.ConstNode( THREE.ConstNode.PI2 ),
						THREE.OperatorNode.MUL
					);

					var wrappedLight = new THREE.Math1Node( lightTransition, THREE.Math1Node.SIN );

					var wrappedLightColor = new THREE.OperatorNode(
						wrappedLight,
						bloodColor,
						THREE.OperatorNode.MUL
					);

					var bloodArea = new THREE.Math1Node( wrappedLightColor, THREE.Math1Node.SAT );

					var totalLight = new THREE.OperatorNode(
						directLight,
						bloodArea,
						THREE.OperatorNode.ADD
					);

					mtl.color = skinColor;
					mtl.light = totalLight;

					if ( name == 'skin' ) {

						// StandardNodeMaterial

						mtl.metalness = new THREE.FloatNode( .05 );
						mtl.roughness = new THREE.FloatNode( .5 );
						mtl.environment = new THREE.CubeTextureNode( cubemap );

					}
					else {

						// PhongNodeMaterial

						mtl.specular = new THREE.ColorNode( 0x2f2e2d );
						mtl.shininess = new THREE.FloatNode( 10 );

					}

					// GUI

					addGui( 'skinColor', skinColor.value.getHex(), function( val ) {

						skinColor.value.setHex( val );

					}, true );

					addGui( 'bloodColor', bloodColor.value.getHex(), function( val ) {

						bloodColor.value.setHex( val );

					}, true );

					addGui( 'wrapLight', wrapLight.number, function( val ) {

						wrapLight.number = val;

					}, false, 0, 3 );

					addGui( 'wrapShadow', wrapShadow.number, function( val ) {

						wrapShadow.number = val;

					}, false, -1, 0 );

					break;

				case 'toon':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var count = new THREE.FloatNode( 3.43 );
					var sceneDirectLight = new THREE.LightNode();
					var color = new THREE.ColorNode( 0xAABBFF );

					var lineColor = new THREE.ColorNode( 0xFF0000 );
					var lineSize = new THREE.FloatNode( 0.23 );
					var lineInner = new THREE.FloatNode( 0 );

					// CEL

					var lightLuminance = new THREE.LuminanceNode( sceneDirectLight );

					var preCelLight = new THREE.OperatorNode(
						lightLuminance,
						count,
						THREE.OperatorNode.MUL
					);

					var celLight = new THREE.Math1Node(
						preCelLight,
						THREE.Math1Node.CEIL
					);

					var posCelLight = new THREE.OperatorNode(
						celLight,
						count,
						THREE.OperatorNode.DIV
					);

					// LINE

					var posDirection = new THREE.Math1Node( new THREE.PositionNode( THREE.PositionNode.VIEW ), THREE.Math1Node.NORMALIZE );
					var norDirection = new THREE.Math1Node( new THREE.NormalNode( THREE.NormalNode.VIEW ), THREE.Math1Node.NORMALIZE );

					var viewZ = new THREE.Math2Node(
						posDirection,
						norDirection,
						THREE.Math2Node.DOT
					);

					var lineOutside = new THREE.Math1Node(
						viewZ,
						THREE.Math1Node.ABS
					);

					var line = new THREE.OperatorNode(
						lineOutside,
						new THREE.FloatNode( 1 ),
						THREE.OperatorNode.DIV
					);

					var lineScaled = new THREE.Math3Node(
						line,
						lineSize,
						lineInner,
						THREE.Math3Node.SMOOTHSTEP
					);

					var innerContour = new THREE.Math1Node( new THREE.Math1Node( lineScaled, THREE.Math1Node.SAT ), THREE.Math1Node.INVERT );

					// APPLY

					mtl.color = color;
					mtl.light = posCelLight;
					mtl.shininess = new THREE.FloatNode( 0 );

					mtl.environment = lineColor;
					mtl.environmentAlpha = innerContour;

					// GUI

					addGui( 'color', color.value.getHex(), function( val ) {

						color.value.setHex( val );

					}, true );

					addGui( 'lineColor', lineColor.value.getHex(), function( val ) {

						lineColor.value.setHex( val );

					}, true );

					addGui( 'count', count.number, function( val ) {

						count.number = val;

					}, false, 1, 8 );

					addGui( 'lineSize', lineSize.number, function( val ) {

						lineSize.number = val;

					}, false, 0, 1 );

					addGui( 'lineInner', lineInner.number, function( val ) {

						lineInner.number = val;

					}, false, 0, 1 );

					addGui( 'ignoreIndirectLight', false, function( val ) {

						mtl.ao = val ? new THREE.FloatNode() : undefined;

						mtl.build();

					} );

					break;

				case 'firefly':

					// MATERIAL

					mtl = new THREE.PhongNodeMaterial();

					var time = new THREE.TimerNode();
					var speed = new THREE.FloatNode( .5 );

					var color = new THREE.ColorNode( 0x98ff00 );

					var timeSpeed = new THREE.OperatorNode(
						time,
						speed,
						THREE.OperatorNode.MUL
					);

					var sinCycleInSecs = new THREE.OperatorNode(
						timeSpeed,
						new THREE.ConstNode( THREE.ConstNode.PI2 ),
						THREE.OperatorNode.MUL
					);

					var cycle = new THREE.Math1Node( sinCycleInSecs, THREE.Math1Node.SIN );

					var cycleColor = new THREE.OperatorNode(
						cycle,
						color,
						THREE.OperatorNode.MUL
					);

					var cos = new THREE.Math1Node( cycleColor, THREE.Math1Node.SIN );

					mtl.color = new THREE.ColorNode( 0 );
					mtl.emissive = cos;

					// GUI

					addGui( 'speed', speed.number, function( val ) {

						speed.number = val;

					}, false, 0, 3 );

					break;
			}

			// build shader
			mtl.build();

			// set material
			mesh.material = mtl;

		}

		function onWindowResize() {

			camera.aspect = window.innerWidth / window.innerHeight;
			camera.updateProjectionMatrix();

			renderer.setSize( window.innerWidth, window.innerHeight );

		}

		function animate() {

			var delta = clock.getDelta();

			if ( move ) {

				var time = Date.now() * 0.005;

				mesh.position.z = Math.cos( time ) * 10;
				mesh.position.y = Math.sin( time ) * 10;

			}
			else {

				mesh.position.z = mesh.position.y = 0;

			}

			//mesh.rotation.z += .01;

			// update material animation and/or gpu calcs (pre-renderer)
			mesh.material.updateAnimation( delta );

			renderer.render( scene, camera );

			requestAnimationFrame( animate );

		}

		</script>

	</body>
</html>