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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <title>threejs webgl - materials - equirectangular exr image based lighting</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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+
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+ <div id="container"></div>
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+ <div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">threejs</a> - Example of <a href="https://cloud.needle.tools/hdris" target="_blank">FastHDR</a>, loading 10x faster and using 95% less GPU memory than EXR.<br/>Photography by <a href="https://cloud.needle.tools/hdris?img=Ballroom" target="_blank" rel="noopener">Sergej Majboroda</a></div>
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+
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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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+
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+ <script type="module">
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+
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+ import * as THREE from 'three';
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+
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+ import Stats from 'three/addons/libs/stats.module.js';
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+
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+ import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
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+ import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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+ import { KTX2Loader } from 'three/addons/loaders/KTX2Loader.js';
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+
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+ const params = {
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+ 'image': 'ballroom',
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+ 'fov': 40,
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+ 'exposure': 1.0,
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+ 'backgroundBlurriness': 0.0
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+ };
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+
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+ let container, stats;
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+ let camera, scene, renderer, controls;
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+
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+ init();
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+
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+ function init() {
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+
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+ container = document.createElement( 'div' );
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+ document.body.appendChild( container );
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+
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+ camera = new THREE.PerspectiveCamera( params.fov, window.innerWidth / window.innerHeight, .1, 50 );
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+ camera.position.set( 7, 0, 0 );
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+
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+ scene = new THREE.Scene();
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+
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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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+ renderer.setAnimationLoop( animate );
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+ renderer.backgroundBlurryness = params.backgroundBlurryness;
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+
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+ container.appendChild( renderer.domElement );
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+
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+ renderer.toneMapping = THREE.ACESFilmicToneMapping;
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+
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+ //
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+
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+ const sphereGeometry = new THREE.SphereGeometry( 0.45, 64, 32 );
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+
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+ const sphere01 = new THREE.Mesh( sphereGeometry, new THREE.MeshPhysicalMaterial( {
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+ transmission: 1.0,
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+ thickness: 2.0,
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+ metalness: 0.0,
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+ roughness: 0.0,
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+ } ) );
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+ sphere01.position.z += 2;
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+ scene.add( sphere01 );
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+
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+ const sphere02 = new THREE.Mesh( sphereGeometry, new THREE.MeshStandardMaterial( {
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+ metalness: 0.0,
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+ roughness: 1.0,
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+ } ) );
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+ sphere02.position.z += 1;
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+ scene.add( sphere02 );
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+
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+ const sphere03 = new THREE.Mesh( sphereGeometry, new THREE.MeshStandardMaterial( {
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+ metalness: 1.0,
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+ roughness: 0.0,
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+ } ) );
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+ sphere03.position.z += 0;
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+ scene.add( sphere03 );
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+
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+ const sphere04 = new THREE.Mesh( sphereGeometry, new THREE.MeshStandardMaterial( {
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+ metalness: 1.0,
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+ roughness: 0.5,
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+ color: 0x888888
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+ } ) );
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+ sphere04.position.z -= 1;
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+ scene.add( sphere04 );
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+
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+ const sphere05 = new THREE.Mesh( sphereGeometry, new THREE.MeshStandardMaterial( {
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+ metalness: 0.0,
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+ roughness: 0.0,
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+ color: 0x6ab440
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+ } ) );
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+ sphere05.position.z -= 2;
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+ scene.add( sphere05 );
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+
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+ const loader = new KTX2Loader()
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+ .setTranscoderPath( 'jsm/libs/basis/' )
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+ .detectSupport( renderer );
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+
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+ function loadTexture( url ) {
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+
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+ loader.load(url, (texture) => {
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+ texture.mapping = THREE.CubeUVReflectionMapping;
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+ scene.environment = texture;
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+ scene.background = texture;
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+ } );
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+
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+ }
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+
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+ loadTexture("https://cdn.needle.tools/static/hdris/ballroom_2k.pmrem.ktx2");
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+
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+ stats = new Stats();
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+ container.appendChild( stats.dom );
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+
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+ controls = new OrbitControls( camera, renderer.domElement );
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+ controls.minDistance = .1;
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+ controls.maxDistance = 20;
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+
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+ window.addEventListener( 'resize', onWindowResize );
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+
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+ const gui = new GUI();
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+
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+ gui.add( params, 'image', {
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+ 'ballroom': 'https://cdn.needle.tools/static/hdris/ballroom_2k.pmrem.ktx2',
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+ 'brown photostudio': 'https://cdn.needle.tools/static/hdris/brown_photostudio_02_2k.pmrem.ktx2',
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+ 'cape hill': 'https://cdn.needle.tools/static/hdris/cape_hill_2k.pmrem.ktx2',
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+ 'cannon': "https://cdn.needle.tools/static/hdris/cannon_2k.pmrem.ktx2",
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+ 'metro noord': "https://cdn.needle.tools/static/hdris/metro_noord_2k.pmrem.ktx2",
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+ 'the sky is on fire': "https://cdn.needle.tools/static/hdris/the_sky_is_on_fire_2k.pmrem.ktx2",
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+ 'studio small 09': 'https://cdn.needle.tools/static/hdris/studio_small_09_2k.pmrem.ktx2',
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+ 'wide street 01': 'https://cdn.needle.tools/static/hdris/wide_street_01_2k.pmrem.ktx2'
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+ } ).onChange( () => {
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+
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+ loadTexture( params.image );
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+
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+ } );
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+ gui.add( params, 'exposure', 0, 2, 0.01 );
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+ gui.add( params, 'fov', 10, 100 ).onChange( () => {
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+
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+ camera.fov = params.fov;
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+ camera.updateProjectionMatrix();
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+
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+ } );
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+ gui.add( params, 'backgroundBlurriness', 0, 1, 0.01 ).name('background blurriness');
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+
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+ gui.open();
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+
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+ }
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+
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+ function onWindowResize() {
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+
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+ const width = window.innerWidth;
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+ const height = window.innerHeight;
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+
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+ camera.aspect = width / height;
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+ camera.updateProjectionMatrix();
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+
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+ renderer.setSize( width, height );
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+
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+ }
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+
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+ function animate() {
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+
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+ stats.begin();
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+ render();
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+ stats.end();
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+
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+ }
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+
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+ function render() {
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+
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+ renderer.toneMappingExposure = params.exposure;
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+ scene.backgroundBlurriness = params.backgroundBlurriness;
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+
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+ renderer.render( scene, camera );
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+
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+ }
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+
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+ </script>
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+
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+ </body>
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+</html>
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Marcel Wiessler
