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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="https://threejs.org" target="_blank" rel="noopener">three.js</a> - mirror node-based
- </div>
- <script type="module">
- import * as THREE from '../build/three.module.js';
- import { GUI } from './jsm/libs/dat.gui.module.js';
- import { OrbitControls } from './jsm/controls/OrbitControls.js';
- import { ReflectorRTT } from './jsm/objects/ReflectorRTT.js';
- import {
- NodeFrame,
- ExpressionNode,
- PhongNodeMaterial,
- MathNode,
- OperatorNode,
- TextureNode,
- BlurNode,
- FloatNode,
- ReflectorNode,
- SwitchNode,
- NormalMapNode,
- } from './jsm/nodes/Nodes.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 GUI();
- var sphereGroup, smallSphere;
- var groundMirrorMaterial;
- var frame = new 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 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 ReflectorRTT( geometry, { clipBias: 0.003, textureWidth: WIDTH, textureHeight: HEIGHT } );
- var mask = new SwitchNode( new TextureNode( decalDiffuse ), 'w' );
- var mirror = new ReflectorNode( groundMirror );
- var normalMap = new TextureNode( decalNormal );
- var normalXY = new SwitchNode( normalMap, 'xy' );
- var normalXYFlip = new MathNode(
- normalXY,
- MathNode.INVERT
- );
- var offsetNormal = new OperatorNode(
- normalXYFlip,
- new FloatNode( .5 ),
- OperatorNode.SUB
- );
- mirror.offset = new OperatorNode(
- offsetNormal, // normal
- new FloatNode( 6 ), // scale
- OperatorNode.MUL
- );
- var blurMirror = new BlurNode( mirror );
- blurMirror.size = new THREE.Vector2( WIDTH, HEIGHT );
- blurMirror.uv = new ExpressionNode( "projCoord.xyz / projCoord.q", "vec3" );
- blurMirror.uv.keywords[ "projCoord" ] = new OperatorNode( mirror.offset, mirror.uv, 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 PhongNodeMaterial();
- groundMirrorMaterial.environment = blurMirror; // or add "mirror" variable to disable blur
- groundMirrorMaterial.environmentAlpha = mask;
- groundMirrorMaterial.normal = new NormalMapNode( normalMap );
- //groundMirrorMaterial.normalScale = new 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 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>
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