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299 lines
8.2 KiB
299 lines
8.2 KiB
2 years ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js webgl - arcball controls</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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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - arcball controls<br/>
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<a href="http://www.polycount.com/forum/showthread.php?t=130641" target="_blank" rel="noopener">Cerberus(FFVII Gun) model</a> by Andrew Maximov.
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</div>
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<!-- Import maps polyfill -->
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<!-- Remove this when import maps will be widely supported -->
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<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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<script type="importmap">
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{
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"imports": {
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"three": "../build/three.module.js",
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"three/addons/": "./jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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import { ArcballControls } from 'three/addons/controls/ArcballControls.js';
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import { OBJLoader } from 'three/addons/loaders/OBJLoader.js';
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import { RGBELoader } from 'three/addons/loaders/RGBELoader.js';
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const cameras = [ 'Orthographic', 'Perspective' ];
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const cameraType = { type: 'Perspective' };
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const perspectiveDistance = 2.5;
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const orthographicDistance = 120;
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let camera, controls, scene, renderer, gui;
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let folderOptions, folderAnimations;
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const arcballGui = {
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gizmoVisible: true,
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setArcballControls: function () {
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controls = new ArcballControls( camera, renderer.domElement, scene );
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controls.addEventListener( 'change', render );
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this.gizmoVisible = true;
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this.populateGui();
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},
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populateGui: function () {
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folderOptions.add( controls, 'enabled' ).name( 'Enable controls' );
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folderOptions.add( controls, 'enableGrid' ).name( 'Enable Grid' );
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folderOptions.add( controls, 'enableRotate' ).name( 'Enable rotate' );
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folderOptions.add( controls, 'enablePan' ).name( 'Enable pan' );
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folderOptions.add( controls, 'enableZoom' ).name( 'Enable zoom' );
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folderOptions.add( controls, 'cursorZoom' ).name( 'Cursor zoom' );
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folderOptions.add( controls, 'adjustNearFar' ).name( 'adjust near/far' );
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folderOptions.add( controls, 'scaleFactor', 1.1, 10, 0.1 ).name( 'Scale factor' );
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folderOptions.add( controls, 'minDistance', 0, 50, 0.5 ).name( 'Min distance' );
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folderOptions.add( controls, 'maxDistance', 0, 50, 0.5 ).name( 'Max distance' );
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folderOptions.add( controls, 'minZoom', 0, 50, 0.5 ).name( 'Min zoom' );
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folderOptions.add( controls, 'maxZoom', 0, 50, 0.5 ).name( 'Max zoom' );
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folderOptions.add( arcballGui, 'gizmoVisible' ).name( 'Show gizmos' ).onChange( function () {
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controls.setGizmosVisible( arcballGui.gizmoVisible );
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} );
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folderOptions.add( controls, 'copyState' ).name( 'Copy state(ctrl+c)' );
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folderOptions.add( controls, 'pasteState' ).name( 'Paste state(ctrl+v)' );
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folderOptions.add( controls, 'reset' ).name( 'Reset' );
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folderAnimations.add( controls, 'enableAnimations' ).name( 'Enable anim.' );
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folderAnimations.add( controls, 'dampingFactor', 0, 100, 1 ).name( 'Damping' );
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folderAnimations.add( controls, 'wMax', 0, 100, 1 ).name( 'Angular spd' );
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}
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};
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init();
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function init() {
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const container = document.createElement( 'div' );
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document.body.appendChild( container );
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renderer = new THREE.WebGLRenderer( { antialias: true, alpha: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.outputEncoding = THREE.sRGBEncoding;
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renderer.toneMapping = THREE.ReinhardToneMapping;
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renderer.toneMappingExposure = 3;
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renderer.domElement.style.background = 'linear-gradient( 180deg, rgba( 0,0,0,1 ) 0%, rgba( 128,128,255,1 ) 100% )';
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container.appendChild( renderer.domElement );
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//
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scene = new THREE.Scene();
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scene.add( new THREE.HemisphereLight( 0x443333, 0x222233, 4 ) );
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camera = makePerspectiveCamera();
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camera.position.set( 0, 0, perspectiveDistance );
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const material = new THREE.MeshStandardMaterial();
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new OBJLoader()
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.setPath( 'models/obj/cerberus/' )
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.load( 'Cerberus.obj', function ( group ) {
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const textureLoader = new THREE.TextureLoader().setPath( 'models/obj/cerberus/' );
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material.roughness = 1;
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material.metalness = 1;
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const diffuseMap = textureLoader.load( 'Cerberus_A.jpg', render );
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diffuseMap.encoding = THREE.sRGBEncoding;
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material.map = diffuseMap;
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material.metalnessMap = material.roughnessMap = textureLoader.load( 'Cerberus_RM.jpg', render );
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material.normalMap = textureLoader.load( 'Cerberus_N.jpg', render );
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material.map.wrapS = THREE.RepeatWrapping;
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material.roughnessMap.wrapS = THREE.RepeatWrapping;
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material.metalnessMap.wrapS = THREE.RepeatWrapping;
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material.normalMap.wrapS = THREE.RepeatWrapping;
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group.traverse( function ( child ) {
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if ( child.isMesh ) {
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child.material = material;
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}
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} );
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group.rotation.y = Math.PI / 2;
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group.position.x += 0.25;
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scene.add( group );
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render();
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new RGBELoader()
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.setPath( 'textures/equirectangular/' )
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.load( 'venice_sunset_1k.hdr', function ( hdrEquirect ) {
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hdrEquirect.mapping = THREE.EquirectangularReflectionMapping;
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scene.environment = hdrEquirect;
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render();
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} );
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window.addEventListener( 'keydown', onKeyDown );
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window.addEventListener( 'resize', onWindowResize );
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//
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gui = new GUI();
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gui.add( cameraType, 'type', cameras ).name( 'Choose Camera' ).onChange( function () {
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setCamera( cameraType.type );
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} );
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folderOptions = gui.addFolder( 'Arcball parameters' );
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folderAnimations = folderOptions.addFolder( 'Animations' );
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arcballGui.setArcballControls();
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render();
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} );
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}
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function makeOrthographicCamera() {
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const halfFovV = THREE.MathUtils.DEG2RAD * 45 * 0.5;
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const halfFovH = Math.atan( ( window.innerWidth / window.innerHeight ) * Math.tan( halfFovV ) );
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const halfW = perspectiveDistance * Math.tan( halfFovH );
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const halfH = perspectiveDistance * Math.tan( halfFovV );
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const near = 0.01;
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const far = 2000;
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const newCamera = new THREE.OrthographicCamera( - halfW, halfW, halfH, - halfH, near, far );
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return newCamera;
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}
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function makePerspectiveCamera() {
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const fov = 45;
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const aspect = window.innerWidth / window.innerHeight;
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const near = 0.01;
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const far = 2000;
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const newCamera = new THREE.PerspectiveCamera( fov, aspect, near, far );
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return newCamera;
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}
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function onWindowResize() {
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if ( camera.type == 'OrthographicCamera' ) {
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const halfFovV = THREE.MathUtils.DEG2RAD * 45 * 0.5;
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const halfFovH = Math.atan( ( window.innerWidth / window.innerHeight ) * Math.tan( halfFovV ) );
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const halfW = perspectiveDistance * Math.tan( halfFovH );
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const halfH = perspectiveDistance * Math.tan( halfFovV );
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camera.left = - halfW;
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camera.right = halfW;
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camera.top = halfH;
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camera.bottom = - halfH;
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} else if ( camera.type == 'PerspectiveCamera' ) {
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camera.aspect = window.innerWidth / window.innerHeight;
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}
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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render();
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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 onKeyDown( event ) {
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if ( event.key === 'c' ) {
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if ( event.ctrlKey || event.metaKey ) {
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controls.copyState();
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}
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} else if ( event.key === 'v' ) {
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if ( event.ctrlKey || event.metaKey ) {
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controls.pasteState();
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}
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}
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}
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function setCamera( type ) {
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if ( type == 'Orthographic' ) {
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camera = makeOrthographicCamera();
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camera.position.set( 0, 0, orthographicDistance );
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} else if ( type == 'Perspective' ) {
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camera = makePerspectiveCamera();
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camera.position.set( 0, 0, perspectiveDistance );
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}
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controls.setCamera( camera );
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render();
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}
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</script>
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</body>
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