javascript
/
three.js
镜像自地址 https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - mirror with nodes</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>
			body {
				color: #444;
			}
			a {
				color: #08f;
			}
		</style>
	</head>
	<body>

		<div id="container"></div>
		<div id="info"><a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - mirror node-based
		</div>

		<script src="../build/three.js"></script>
		<script src="js/libs/dat.gui.min.js"></script>
		<script src="js/objects/Reflector.js"></script>
		<script src="js/objects/ReflectorRTT.js"></script>
		<script src="js/controls/OrbitControls.js"></script>

		<script type="module">

			import './js/nodes/THREE.Nodes.js';
			import './js/loaders/NodeMaterialLoader.js';

			// scene size
			var WIDTH = window.innerWidth;
			var HEIGHT = window.innerHeight;

			// camera
			var VIEW_ANGLE = 45;
			var ASPECT = WIDTH / HEIGHT;
			var NEAR = 1;
			var FAR = 500;

			var decalNormal = new THREE.TextureLoader().load( 'textures/decal/decal-normal.jpg' );

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

			var camera, scene, renderer;
			var clock = new THREE.Clock();

			var cameraControls;

			var gui = new dat.GUI();

			var sphereGroup, smallSphere;
			var groundMirrorMaterial;

			var frame = new THREE.NodeFrame();

			function init() {

				// renderer
				renderer = new THREE.WebGLRenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( WIDTH, HEIGHT );

				// scene
				scene = new THREE.Scene();

				// camera
				camera = new THREE.PerspectiveCamera( VIEW_ANGLE, ASPECT, NEAR, FAR );
				camera.position.set( 0, 75, 160 );

				cameraControls = new THREE.OrbitControls( camera, renderer.domElement );
				cameraControls.target.set( 0, 40, 0 );
				cameraControls.maxDistance = 400;
				cameraControls.minDistance = 10;
				cameraControls.update();

				var container = document.getElementById( 'container' );
				container.appendChild( renderer.domElement );

			}

			function fillScene() {

				var planeGeo = new THREE.PlaneBufferGeometry( 100.1, 100.1 );

				// reflector/mirror plane
				var geometry = new THREE.PlaneBufferGeometry( 100, 100 );
				var groundMirror = new THREE.ReflectorRTT( geometry, { clipBias: 0.003, textureWidth: WIDTH, textureHeight: HEIGHT } );

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

				var mirror = new THREE.ReflectorNode( groundMirror );

				var normalMap = new THREE.TextureNode( decalNormal );
				var normalXY = new THREE.SwitchNode( normalMap, 'xy' );
				var normalXYFlip = new THREE.Math1Node(
					normalXY,
					THREE.Math1Node.INVERT
				);

				var offsetNormal = new THREE.OperatorNode(
					normalXYFlip,
					new THREE.FloatNode( .5 ),
					THREE.OperatorNode.SUB
				);

				mirror.offset = new THREE.OperatorNode(
					offsetNormal, // normal
					new THREE.FloatNode( 6 ), // scale
					THREE.OperatorNode.MUL
				);

				var blurMirror = new THREE.BlurNode( mirror );
				blurMirror.size = new THREE.Vector2( WIDTH, HEIGHT );
				blurMirror.uv = new THREE.ExpressionNode( "projCoord.xyz / projCoord.q", "vec3" );
				blurMirror.uv.keywords[ "projCoord" ] = new THREE.OperatorNode( mirror.offset, mirror.uv, THREE.OperatorNode.ADD );
				blurMirror.radius.x = blurMirror.radius.y = 0;

				gui.add( { blur: blurMirror.radius.x }, "blur", 0, 25 ).onChange( function ( v ) {

					blurMirror.radius.x = blurMirror.radius.y = v;

				} );

				groundMirrorMaterial = new THREE.PhongNodeMaterial();
				groundMirrorMaterial.environment = blurMirror; // or add "mirror" variable to disable blur
				groundMirrorMaterial.environmentAlpha = mask;
				groundMirrorMaterial.normal = new THREE.NormalMapNode( normalMap );
				//groundMirrorMaterial.normalScale = new THREE.FloatNode( 1 );

				// test serialization
				/*
						var library = {};
						library[ groundMirror.uuid ] = groundMirror;
						library[ decalDiffuse.uuid ] = decalDiffuse;
						library[ decalNormal.uuid ] = decalNormal;
						library[ mirror.textureMatrix.uuid ] = mirror.textureMatrix; // use textureMatrix to projection

						var json = groundMirrorMaterial.toJSON();

						groundMirrorMaterial = new THREE.NodeMaterialLoader( null, library ).parse( json );
					*/
				//--

				var mirrorMesh = new THREE.Mesh( planeGeo, groundMirrorMaterial );
				// add all alternative mirror materials inside the ReflectorRTT to prevent:
				// glDrawElements: Source and destination textures of the draw are the same.
				groundMirror.add( mirrorMesh );
				groundMirror.rotateX( - Math.PI / 2 );
				scene.add( groundMirror );

				sphereGroup = new THREE.Object3D();
				scene.add( sphereGroup );

				var geometry = new THREE.CylinderBufferGeometry( 0.1, 15 * Math.cos( Math.PI / 180 * 30 ), 0.1, 24, 1 );
				var material = new THREE.MeshPhongMaterial( { color: 0xffffff, emissive: 0x444444 } );
				var sphereCap = new THREE.Mesh( geometry, material );
				sphereCap.position.y = - 15 * Math.sin( Math.PI / 180 * 30 ) - 0.05;
				sphereCap.rotateX( - Math.PI );

				var geometry = new THREE.SphereBufferGeometry( 15, 24, 24, Math.PI / 2, Math.PI * 2, 0, Math.PI / 180 * 120 );
				var halfSphere = new THREE.Mesh( geometry, material );
				halfSphere.add( sphereCap );
				halfSphere.rotateX( - Math.PI / 180 * 135 );
				halfSphere.rotateZ( - Math.PI / 180 * 20 );
				halfSphere.position.y = 7.5 + 15 * Math.sin( Math.PI / 180 * 30 );

				sphereGroup.add( halfSphere );

				var geometry = new THREE.IcosahedronBufferGeometry( 5, 0 );
				var material = new THREE.MeshPhongMaterial( { color: 0xffffff, emissive: 0x333333, flatShading: true } );
				smallSphere = new THREE.Mesh( geometry, material );
				scene.add( smallSphere );

				// walls
				var planeTop = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0xffffff } ) );
				planeTop.position.y = 100;
				planeTop.rotateX( Math.PI / 2 );
				scene.add( planeTop );

				var planeBack = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0xffffff } ) );
				planeBack.position.z = - 50;
				planeBack.position.y = 50;
				scene.add( planeBack );

				var planeFront = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0x7f7fff } ) );
				planeFront.position.z = 50;
				planeFront.position.y = 50;
				planeFront.rotateY( Math.PI );
				scene.add( planeFront );

				var planeRight = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0x00ff00 } ) );
				planeRight.position.x = 50;
				planeRight.position.y = 50;
				planeRight.rotateY( - Math.PI / 2 );
				scene.add( planeRight );

				var planeLeft = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0xff0000 } ) );
				planeLeft.position.x = - 50;
				planeLeft.position.y = 50;
				planeLeft.rotateY( Math.PI / 2 );
				scene.add( planeLeft );

				// lights
				var mainLight = new THREE.PointLight( 0xcccccc, 1.5, 250 );
				mainLight.position.y = 60;
				scene.add( mainLight );

				var greenLight = new THREE.PointLight( 0x00ff00, 0.25, 1000 );
				greenLight.position.set( 550, 50, 0 );
				scene.add( greenLight );

				var redLight = new THREE.PointLight( 0xff0000, 0.25, 1000 );
				redLight.position.set( - 550, 50, 0 );
				scene.add( redLight );

				var blueLight = new THREE.PointLight( 0x7f7fff, 0.25, 1000 );
				blueLight.position.set( 0, 50, 550 );
				scene.add( blueLight );

			}

			function render() {

				renderer.render( scene, camera );

			}

			function update() {

				requestAnimationFrame( update );

				var delta = clock.getDelta();
				var timer = Date.now() * 0.01;

				sphereGroup.rotation.y -= 0.002;

				smallSphere.position.set(
					Math.cos( timer * 0.1 ) * 30,
					Math.abs( Math.cos( timer * 0.2 ) ) * 20 + 5,
					Math.sin( timer * 0.1 ) * 30
				);
				smallSphere.rotation.y = ( Math.PI / 2 ) - timer * 0.1;
				smallSphere.rotation.z = timer * 0.8;

				frame.update( delta ).updateNode( groundMirrorMaterial );

				render();

			}

			init();
			fillScene();
			update();

		</script>
	</body>
</html>