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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - GLTFloader + Sheen</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 {
				background: #bbbbbb;
			}
		</style>
	</head>

	<body>
		<div id="info">
			<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> - GLTFLoader + <a href="https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_sheen" target="_blank" rel="noopener">KHR_materials_sheen</a><br />
			Sheen Chair from <a href="https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/SheenChair" target="_blank" rel="noopener">glTF-Sample-Models</a>
		</div>

		<script type="importmap">
			{
				"imports": {
					"three": "../build/three.module.js",
					"three/addons/": "./jsm/"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three';

			import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
			import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';
			import { RoomEnvironment } from 'three/addons/environments/RoomEnvironment.js';

			import { GUI } from 'three/addons/libs/lil-gui.module.min.js';

			let camera, scene, renderer, controls;

			init();

			function init() {

				const container = document.createElement( 'div' );
				document.body.appendChild( container );

				camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.1, 20 );
				camera.position.set( - 0.75, 0.7, 1.25 );

				scene = new THREE.Scene();

				// model

				new GLTFLoader()
					.setPath( 'models/gltf/' )
					.load( 'SheenChair.glb', function ( gltf ) {

						scene.add( gltf.scene );

						const object = gltf.scene.getObjectByName( 'SheenChair_fabric' );

						const gui = new GUI();

						gui.add( object.material, 'sheen', 0, 1 );
						gui.open();

					} );

				renderer = new THREE.WebGLRenderer( { antialias: true } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.setAnimationLoop( animate );
				renderer.toneMapping = THREE.ACESFilmicToneMapping;
				renderer.toneMappingExposure = 1;
				container.appendChild( renderer.domElement );

				const environment = new RoomEnvironment();
				const pmremGenerator = new THREE.PMREMGenerator( renderer );

				scene.background = new THREE.Color( 0xbbbbbb );
				scene.environment = pmremGenerator.fromScene( environment ).texture;

				controls = new OrbitControls( camera, renderer.domElement );
				controls.enableDamping = true;
				controls.minDistance = 1;
				controls.maxDistance = 10;
				controls.target.set( 0, 0.35, 0 );
				controls.update();

				window.addEventListener( 'resize', onWindowResize );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			//

			function animate() {

				controls.update(); // required if damping enabled

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>