samien
/
three.js
镜像来自 https://github.com/mrdoob/three.js.git


			
				
					
						
						
							12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394
							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webgl - postprocessing - afterimage</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>
		<script type="importmap">
			{
				"imports": {
					"three": "../build/three.module.js",
					"three/addons/": "./jsm/"
				}
			}
		</script>

		<script type="module">

			import * as THREE from 'three';

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

			import { AfterimagePass } from 'three/addons/postprocessing/AfterimagePass.js';

			let camera, scene, renderer;
			let mesh;

			let afterimagePass;

			const params = {

				enable: true

			};

			init();

			function init() {

				renderer = new THREE.WebGLRenderer( { outputBufferType: THREE.HalfFloatType } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.setAnimationLoop( animate );
				document.body.appendChild( renderer.domElement );

				camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
				camera.position.z = 400;

				scene = new THREE.Scene();
				scene.fog = new THREE.Fog( 0x000000, 1, 1000 );

				const geometry = new THREE.BoxGeometry( 150, 150, 150, 2, 2, 2 );
				const material = new THREE.MeshNormalMaterial();
				mesh = new THREE.Mesh( geometry, material );
				scene.add( mesh );

				// postprocessing

				afterimagePass = new AfterimagePass();
				renderer.setEffects( [ afterimagePass ] );

				window.addEventListener( 'resize', onWindowResize );

				const gui = new GUI( { title: 'Damp setting' } );
				gui.add( afterimagePass, 'damp', 0, 1 ).step( 0.001 );
				gui.add( params, 'enable' );

			}

			function onWindowResize() {

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

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

			}

			function animate() {

				mesh.rotation.x += 0.005;
				mesh.rotation.y += 0.01;

				afterimagePass.enabled = params.enable;

				renderer.render( scene, camera );

			}

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