javascript
/
three.js
镜像来自 https://github.com/tazdij/three.js.git


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - materials - bump map [Lee Perry-Smith]</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> - bump mapping without tangents<br/>
			<a href="https://casual-effects.com/data/" target="_blank" rel="noopener">Lee Perry-Smith</a> head
		</div>

		<!-- Import maps polyfill -->
		<!-- Remove this when import maps will be widely supported -->
		<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>

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

		<script type="module">

			import * as THREE from 'three';

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

			import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';

			let container, stats, loader;

			let camera, scene, renderer;

			let mesh;

			let spotLight;

			let mouseX = 0;
			let mouseY = 0;

			let targetX = 0;
			let targetY = 0;

			const windowHalfX = window.innerWidth / 2;
			const windowHalfY = window.innerHeight / 2;

			init();
			animate();

			function init() {

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

				//

				camera = new THREE.PerspectiveCamera( 27, window.innerWidth / window.innerHeight, 0.1, 100 );
				camera.position.z = 12;

				scene = new THREE.Scene();
				scene.background = new THREE.Color( 0x060708 );

				// LIGHTS

				scene.add( new THREE.HemisphereLight( 0x8d7c7c, 0x494966, 3 ) );

				spotLight = new THREE.SpotLight( 0xffffde, 200 );
				spotLight.position.set( 3.5, 0, 7 );
				scene.add( spotLight );

				spotLight.castShadow = true;

				spotLight.shadow.mapSize.width = 2048;
				spotLight.shadow.mapSize.height = 2048;

				spotLight.shadow.camera.near = 2;
				spotLight.shadow.camera.far = 15;

				spotLight.shadow.camera.fov = 40;

				spotLight.shadow.bias = - 0.005;

				//

				const mapHeight = new THREE.TextureLoader().load( 'models/gltf/LeePerrySmith/Infinite-Level_02_Disp_NoSmoothUV-4096.jpg' );

				const material = new THREE.MeshPhongMaterial( {
					color: 0x9c6e49,
					specular: 0x666666,
					shininess: 25,
					bumpMap: mapHeight,
					bumpScale: 0.1
				} );

				loader = new GLTFLoader();
				loader.load( 'models/gltf/LeePerrySmith/LeePerrySmith.glb', function ( gltf ) {

					createScene( gltf.scene.children[ 0 ].geometry, 1, material );

				} );

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

				renderer.shadowMap.enabled = true;

				//

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

				// EVENTS

				document.addEventListener( 'mousemove', onDocumentMouseMove );
				window.addEventListener( 'resize', onWindowResize );

			}

			function createScene( geometry, scale, material ) {

				mesh = new THREE.Mesh( geometry, material );

				mesh.position.y = - 0.5;
				mesh.scale.set( scale, scale, scale );

				mesh.castShadow = true;
				mesh.receiveShadow = true;

				scene.add( mesh );

			}

			//

			function onWindowResize() {

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

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

			}

			function onDocumentMouseMove( event ) {

				mouseX = ( event.clientX - windowHalfX );
				mouseY = ( event.clientY - windowHalfY );

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();
			
				stats.update();

			}

			function render() {

				targetX = mouseX * .001;
				targetY = mouseY * .001;

				if ( mesh ) {

					mesh.rotation.y += 0.05 * ( targetX - mesh.rotation.y );
					mesh.rotation.x += 0.05 * ( targetY - mesh.rotation.x );

				}

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>