297 lines
8.8 KiB
HTML
297 lines
8.8 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - mirror with nodes</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<link type="text/css" rel="stylesheet" href="main.css">
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<style>
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body {
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color: #444;
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}
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a {
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color: #08f;
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}
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</style>
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</head>
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<body>
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<div id="container"></div>
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<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - mirror node-based
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</div>
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<script type="module">
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import * as THREE from '../build/three.module.js';
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import { GUI } from './jsm/libs/dat.gui.module.js';
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import { OrbitControls } from './jsm/controls/OrbitControls.js';
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import { ReflectorRTT } from './jsm/objects/ReflectorRTT.js';
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import {
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NodeFrame,
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ExpressionNode,
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PhongNodeMaterial,
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MathNode,
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OperatorNode,
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TextureNode,
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BlurNode,
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FloatNode,
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ReflectorNode,
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SwitchNode,
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NormalMapNode,
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} from './jsm/nodes/Nodes.js';
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const decalNormal = new THREE.TextureLoader().load( 'textures/decal/decal-normal.jpg' );
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const decalDiffuse = new THREE.TextureLoader().load( 'textures/decal/decal-diffuse.png' );
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decalDiffuse.wrapS = decalDiffuse.wrapT = THREE.RepeatWrapping;
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let camera, scene, renderer;
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const clock = new THREE.Clock();
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let cameraControls;
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const gui = new GUI();
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let sphereGroup, smallSphere;
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let groundMirrorMaterial;
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const frame = new NodeFrame();
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let groundMirror;
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let blurMirror;
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function init() {
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// renderer
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renderer = new THREE.WebGLRenderer();
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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// scene
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scene = new THREE.Scene();
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// camera
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camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 500 );
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camera.position.set( 0, 75, 160 );
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cameraControls = new OrbitControls( camera, renderer.domElement );
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cameraControls.target.set( 0, 40, 0 );
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cameraControls.maxDistance = 400;
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cameraControls.minDistance = 10;
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cameraControls.update();
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const container = document.getElementById( 'container' );
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container.appendChild( renderer.domElement );
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window.addEventListener( 'resize', onWindowResize, false );
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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groundMirror.getRenderTarget().setSize(
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window.innerWidth * window.devicePixelRatio,
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window.innerHeight * window.devicePixelRatio
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);
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blurMirror.size.set(
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window.innerWidth * window.devicePixelRatio,
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window.innerHeight * window.devicePixelRatio
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);
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blurMirror.updateFrame();
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}
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function fillScene() {
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const planeGeo = new THREE.PlaneGeometry( 100.1, 100.1 );
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let geometry, material;
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// reflector/mirror plane
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geometry = new THREE.PlaneGeometry( 100, 100 );
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groundMirror = new ReflectorRTT( geometry, {
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clipBias: 0.003,
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textureWidth: window.innerWidth * window.devicePixelRatio,
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textureHeight: window.innerHeight * window.devicePixelRatio
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} );
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const mask = new SwitchNode( new TextureNode( decalDiffuse ), 'w' );
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const mirror = new ReflectorNode( groundMirror );
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const normalMap = new TextureNode( decalNormal );
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const normalXY = new SwitchNode( normalMap, 'xy' );
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const normalXYFlip = new MathNode(
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normalXY,
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MathNode.INVERT
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);
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const offsetNormal = new OperatorNode(
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normalXYFlip,
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new FloatNode( .5 ),
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OperatorNode.SUB
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);
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mirror.offset = new OperatorNode(
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offsetNormal, // normal
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new FloatNode( 6 ), // scale
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OperatorNode.MUL
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);
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blurMirror = new BlurNode( mirror );
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blurMirror.size = new THREE.Vector2(
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window.innerWidth * window.devicePixelRatio,
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window.innerHeight * window.devicePixelRatio
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);
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blurMirror.uv = new ExpressionNode( 'projCoord.xyz / projCoord.q', 'vec3' );
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blurMirror.uv.keywords[ 'projCoord' ] = new OperatorNode( mirror.offset, mirror.uv, OperatorNode.ADD );
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blurMirror.radius.x = blurMirror.radius.y = 0;
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gui.add( { blur: blurMirror.radius.x }, 'blur', 0, 25 ).onChange( function ( v ) {
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blurMirror.radius.x = blurMirror.radius.y = v;
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} );
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groundMirrorMaterial = new PhongNodeMaterial();
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groundMirrorMaterial.environment = blurMirror; // or add "mirror" variable to disable blur
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groundMirrorMaterial.environmentAlpha = mask;
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groundMirrorMaterial.normal = new NormalMapNode( normalMap );
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//groundMirrorMaterial.normalScale = new FloatNode( 1 );
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// test serialization
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/*
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let library = {};
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library[ groundMirror.uuid ] = groundMirror;
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library[ decalDiffuse.uuid ] = decalDiffuse;
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library[ decalNormal.uuid ] = decalNormal;
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library[ mirror.textureMatrix.uuid ] = mirror.textureMatrix; // use textureMatrix to projection
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let json = groundMirrorMaterial.toJSON();
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groundMirrorMaterial = new NodeMaterialLoader( null, library ).parse( json );
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*/
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//--
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const mirrorMesh = new THREE.Mesh( planeGeo, groundMirrorMaterial );
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// add all alternative mirror materials inside the ReflectorRTT to prevent:
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// glDrawElements: Source and destination textures of the draw are the same.
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groundMirror.add( mirrorMesh );
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groundMirror.rotateX( - Math.PI / 2 );
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scene.add( groundMirror );
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sphereGroup = new THREE.Object3D();
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scene.add( sphereGroup );
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geometry = new THREE.CylinderGeometry( 0.1, 15 * Math.cos( Math.PI / 180 * 30 ), 0.1, 24, 1 );
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material = new THREE.MeshPhongMaterial( { color: 0xffffff, emissive: 0x444444 } );
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const sphereCap = new THREE.Mesh( geometry, material );
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sphereCap.position.y = - 15 * Math.sin( Math.PI / 180 * 30 ) - 0.05;
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sphereCap.rotateX( - Math.PI );
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geometry = new THREE.SphereGeometry( 15, 24, 24, Math.PI / 2, Math.PI * 2, 0, Math.PI / 180 * 120 );
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const halfSphere = new THREE.Mesh( geometry, material );
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halfSphere.add( sphereCap );
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halfSphere.rotateX( - Math.PI / 180 * 135 );
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halfSphere.rotateZ( - Math.PI / 180 * 20 );
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halfSphere.position.y = 7.5 + 15 * Math.sin( Math.PI / 180 * 30 );
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sphereGroup.add( halfSphere );
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geometry = new THREE.IcosahedronGeometry( 5, 0 );
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material = new THREE.MeshPhongMaterial( { color: 0xffffff, emissive: 0x333333, flatShading: true } );
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smallSphere = new THREE.Mesh( geometry, material );
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scene.add( smallSphere );
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// walls
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const planeTop = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0xffffff } ) );
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planeTop.position.y = 100;
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planeTop.rotateX( Math.PI / 2 );
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scene.add( planeTop );
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const planeBack = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0xffffff } ) );
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planeBack.position.z = - 50;
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planeBack.position.y = 50;
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scene.add( planeBack );
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const planeFront = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0x7f7fff } ) );
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planeFront.position.z = 50;
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planeFront.position.y = 50;
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planeFront.rotateY( Math.PI );
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scene.add( planeFront );
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const planeRight = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0x00ff00 } ) );
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planeRight.position.x = 50;
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planeRight.position.y = 50;
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planeRight.rotateY( - Math.PI / 2 );
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scene.add( planeRight );
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const planeLeft = new THREE.Mesh( planeGeo, new THREE.MeshPhongMaterial( { color: 0xff0000 } ) );
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planeLeft.position.x = - 50;
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planeLeft.position.y = 50;
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planeLeft.rotateY( Math.PI / 2 );
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scene.add( planeLeft );
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// lights
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const mainLight = new THREE.PointLight( 0xcccccc, 1.5, 250 );
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mainLight.position.y = 60;
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scene.add( mainLight );
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const greenLight = new THREE.PointLight( 0x00ff00, 0.25, 1000 );
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greenLight.position.set( 550, 50, 0 );
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scene.add( greenLight );
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const redLight = new THREE.PointLight( 0xff0000, 0.25, 1000 );
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redLight.position.set( - 550, 50, 0 );
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scene.add( redLight );
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const blueLight = new THREE.PointLight( 0x7f7fff, 0.25, 1000 );
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blueLight.position.set( 0, 50, 550 );
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scene.add( blueLight );
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}
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function render() {
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renderer.render( scene, camera );
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}
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function update() {
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requestAnimationFrame( update );
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const delta = clock.getDelta();
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const timer = Date.now() * 0.01;
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sphereGroup.rotation.y -= 0.002;
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smallSphere.position.set(
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Math.cos( timer * 0.1 ) * 30,
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Math.abs( Math.cos( timer * 0.2 ) ) * 20 + 5,
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Math.sin( timer * 0.1 ) * 30
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);
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smallSphere.rotation.y = ( Math.PI / 2 ) - timer * 0.1;
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smallSphere.rotation.z = timer * 0.8;
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frame.update( delta ).updateNode( groundMirrorMaterial );
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render();
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}
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init();
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fillScene();
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update();
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</script>
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</body>
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</html>
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