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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgpu - materials - clearcoat</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">
	</head>
	<body>
		<div id="info">
			<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgpu - clearcoat
		</div>

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

		<script type="module">

			import * as THREE from 'three';

			import Stats from 'three/addons/libs/stats.module.js';

			import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
			import { HDRCubeTextureLoader } from 'three/addons/loaders/HDRCubeTextureLoader.js';

			import { FlakesTexture } from 'three/addons/textures/FlakesTexture.js';

			let container, stats;

			let camera, scene, renderer;

			let particleLight;
			let group;

			init();

			function init() {

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

				camera = new THREE.PerspectiveCamera( 27, window.innerWidth / window.innerHeight, 0.25, 50 );
				camera.position.z = 10;

				scene = new THREE.Scene();

				group = new THREE.Group();
				scene.add( group );

				new HDRCubeTextureLoader()
					.setPath( 'textures/cube/pisaHDR/' )
					.load( [ 'px.hdr', 'nx.hdr', 'py.hdr', 'ny.hdr', 'pz.hdr', 'nz.hdr' ],
						function ( texture ) {

							const geometry = new THREE.SphereGeometry( .8, 64, 32 );

							const textureLoader = new THREE.TextureLoader();

							const diffuse = textureLoader.load( 'textures/carbon/Carbon.png' );
							diffuse.colorSpace = THREE.SRGBColorSpace;
							diffuse.wrapS = THREE.RepeatWrapping;
							diffuse.wrapT = THREE.RepeatWrapping;
							diffuse.repeat.x = 10;
							diffuse.repeat.y = 10;

							const normalMap = textureLoader.load( 'textures/carbon/Carbon_Normal.png' );
							normalMap.wrapS = THREE.RepeatWrapping;
							normalMap.wrapT = THREE.RepeatWrapping;
							normalMap.repeat.x = 10;
							normalMap.repeat.y = 10;

							const normalMap2 = textureLoader.load( 'textures/water/Water_1_M_Normal.jpg' );

							const normalMap3 = new THREE.CanvasTexture( new FlakesTexture() );
							normalMap3.wrapS = THREE.RepeatWrapping;
							normalMap3.wrapT = THREE.RepeatWrapping;
							normalMap3.repeat.x = 10;
							normalMap3.repeat.y = 6;
							normalMap3.anisotropy = 16;

							const normalMap4 = textureLoader.load( 'textures/golfball.jpg' );

							const clearcoatNormalMap = textureLoader.load( 'textures/pbr/Scratched_gold/Scratched_gold_01_1K_Normal.png' );

							// car paint

							let material = new THREE.MeshPhysicalMaterial( {
								clearcoat: 1.0,
								clearcoatRoughness: 0.1,
								metalness: 0.9,
								roughness: 0.5,
								color: 0x0000ff,
								normalMap: normalMap3,
								normalScale: new THREE.Vector2( 0.15, 0.15 )
							} );
							let mesh = new THREE.Mesh( geometry, material );
							mesh.position.x = - 1;
							mesh.position.y = 1;
							group.add( mesh );

							// fibers

							material = new THREE.MeshPhysicalMaterial( {
								roughness: 0.5,
								clearcoat: 1.0,
								clearcoatRoughness: 0.1,
								map: diffuse,
								normalMap: normalMap
							} );
							mesh = new THREE.Mesh( geometry, material );
							mesh.position.x = 1;
							mesh.position.y = 1;
							group.add( mesh );

							// golf

							material = new THREE.MeshPhysicalMaterial( {
								metalness: 0.0,
								roughness: 0.1,
								clearcoat: 1.0,
								normalMap: normalMap4,
								clearcoatNormalMap: clearcoatNormalMap,

								// y scale is negated to compensate for normal map handedness.
								clearcoatNormalScale: new THREE.Vector2( 2.0, - 2.0 )
							} );
							mesh = new THREE.Mesh( geometry, material );
							mesh.position.x = - 1;
							mesh.position.y = - 1;
							group.add( mesh );

							// clearcoat + normalmap

							material = new THREE.MeshPhysicalMaterial( {
								clearcoat: 1.0,
								metalness: 1.0,
								color: 0xff0000,
								normalMap: normalMap2,
								normalScale: new THREE.Vector2( 0.15, 0.15 ),
								clearcoatNormalMap: clearcoatNormalMap,

								// y scale is negated to compensate for normal map handedness.
								clearcoatNormalScale: new THREE.Vector2( 2.0, - 2.0 )
							} );
							mesh = new THREE.Mesh( geometry, material );
							mesh.position.x = 1;
							mesh.position.y = - 1;
							group.add( mesh );

							//

							scene.background = texture;
							scene.environment = texture;

						}

					);

				// LIGHTS

				particleLight = new THREE.Mesh(
					new THREE.SphereGeometry( .05, 8, 8 ),
					new THREE.MeshBasicMaterial( { color: 0xffffff } )
				);
				scene.add( particleLight );

				particleLight.add( new THREE.PointLight( 0xffffff, 30 ) );

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

				//

				renderer.toneMapping = THREE.ACESFilmicToneMapping;
				renderer.toneMappingExposure = 1.25;

				//

				stats = new Stats();
				container.appendChild( stats.dom );

				// EVENTS

				const controls = new OrbitControls( camera, renderer.domElement );
				controls.minDistance = 3;
				controls.maxDistance = 30;

				window.addEventListener( 'resize', onWindowResize );

			}

			//

			function onWindowResize() {

				const width = window.innerWidth;
				const height = window.innerHeight;

				camera.aspect = width / height;
				camera.updateProjectionMatrix();

				renderer.setSize( width, height );

			}

			//

			function animate() {

				render();

				stats.update();

			}

			function render() {

				const timer = Date.now() * 0.00025;

				particleLight.position.x = Math.sin( timer * 7 ) * 3;
				particleLight.position.y = Math.cos( timer * 5 ) * 4;
				particleLight.position.z = Math.cos( timer * 3 ) * 3;

				for ( let i = 0; i < group.children.length; i ++ ) {

					const child = group.children[ i ];
					child.rotation.y += 0.005;

				}

				renderer.render( scene, camera );

			}

		</script>
	</body>
</html>