<!DOCTYPE html><html><head> ???<title></title> ???<script src="https://cdn.bootcss.com/three.js/r67/three.js"></script> ???<script src="https://cdn.bootcss.com/stats.js/r10/Stats.min.js"></script> ???<script type="text/javascript" src="https://cdn.bootcss.com/dat-gui/0.7.3/dat.gui.js"></script> ???<style> ???????body { ???????????margin: 0; ???????????overflow: hidden; ???????} ???</style></head><body><div id="Stats-output"></div><div id="WebGL-output"></div><script type="text/javascript"> ???// 初始化 ???function init() { ???????var stats = initStats(); ???????// 创建一个场景 ???????var scene = new THREE.Scene(); ???????scene.fog = new THREE.Fog(0xaaaaaa, 0.010, 200); ???????// 创建一个相机 ???????var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000); ???????// 创建一个渲染器 ???????var renderer = new THREE.WebGLRenderer({antialias: true, alpha: true}); ???????renderer.setClearColor(new THREE.Color(0xaaaaff, 1.0)); ???????renderer.setSize(window.innerWidth, window.innerHeight); ???????renderer.shadowMapEnabled = true; ???????// 创建草坪 ???????var textureGrass = THREE.ImageUtils.loadTexture("../assets/textures/ground/grasslight-big.jpg"); ???????textureGrass.wrapS = THREE.RepeatWrapping; ???????textureGrass.wrapT = THREE.RepeatWrapping; ???????textureGrass.repeat.set(4, 4);//创建地面 ???????var planeGeometry = new THREE.PlaneGeometry(1000, 200, 20, 20); ???????var planeMaterial = new THREE.MeshLambertMaterial({map: textureGrass}); ???????var plane = new THREE.Mesh(planeGeometry, planeMaterial); ???????plane.receiveShadow = true; ???????// 让地面水平 ???????plane.rotation.x = -0.5 * Math.PI; ???????plane.position.x = 15; ???????plane.position.y = 0; ???????plane.position.z = 0; ???????// 把地面添加到场景中 ???????scene.add(plane); ???????// 创建一个正方体 ???????var cubeGeometry = new THREE.BoxGeometry(4, 4, 4); ???????var cubeMaterial = new THREE.MeshLambertMaterial({color: 0xff3333}); ???????var cube = new THREE.Mesh(cubeGeometry, cubeMaterial); ???????cube.castShadow = true; ???????// 设置正方体的坐标 ???????cube.position.x = -4; ???????cube.position.y = 3; ???????cube.position.z = 0; ???????// 把正方体添加到场景中 ???????scene.add(cube); ???????var sphereGeometry = new THREE.SphereGeometry(4, 25, 25); ???????var sphereMaterial = new THREE.MeshLambertMaterial({color: 0x7777ff}); ???????var sphere = new THREE.Mesh(sphereGeometry, sphereMaterial); ???????// 设置圆球坐标 ???????sphere.position.x = 10; ???????sphere.position.y = 5; ???????sphere.position.z = 10; ???????sphere.castShadow = true; ???????// 把圆球添加到场景中 ???????scene.add(sphere); ???????// 设置相机坐标 ???????camera.position.x = -20; ???????camera.position.y = 15; ???????camera.position.z = 45; ???????camera.lookAt(new THREE.Vector3(10, 0, 0)); ???????// 添加自然光 ???????var ambiColor = "#1c1c1c"; ???????var ambientLight = new THREE.AmbientLight(ambiColor); ???????scene.add(ambientLight); ???????// 添加聚光灯 ???????var spotLight0 = new THREE.SpotLight(0xcccccc); ???????spotLight0.position.set(-40, 60, -10); ???????spotLight0.lookAt(plane); ???????scene.add(spotLight0); ???????var target = new THREE.Object3D(); ???????target.position = new THREE.Vector3(5, 0, 0); ???????var pointColor = "#ffffff";// ???var spotLight = new THREE.SpotLight( pointColor); ???????var spotLight = new THREE.DirectionalLight(pointColor); ???????spotLight.position.set(30, 10, -50); ???????spotLight.castShadow = true; ???????spotLight.shadowCameraNear = 0.1; ???????spotLight.shadowCameraFar = 100; ???????spotLight.shadowCameraFov = 50; ???????spotLight.target = plane; ???????spotLight.distance = 0; ???????spotLight.shadowCameraNear = 2; ???????spotLight.shadowCameraFar = 200; ???????spotLight.shadowCameraLeft = -100; ???????spotLight.shadowCameraRight = 100; ???????spotLight.shadowCameraTop = 100; ???????spotLight.shadowCameraBottom = -100; ???????spotLight.shadowMapWidth = 2048; ???????spotLight.shadowMapHeight = 2048; ???????scene.add(spotLight); ??????//把渲染后的效果放到DOM元素中去 ???????document.getElementById("WebGL-output").appendChild(renderer.domElement); ???????????????var step = 0; ??????????????var invert = 1; ???????var phase = 0; ???????var controls = new function () { ???????????this.rotationSpeed = 0.03; ???????????this.bouncingSpeed = 0.03; ???????????this.ambientColor = ambiColor; ???????????this.pointColor = pointColor; ???????????this.intensity = 0.1; ???????????this.distance = 0; ???????????this.exponent = 30; ???????????this.angle = 0.1; ???????????this.debug = false; ???????????this.castShadow = true; ???????????this.onlyShadow = false; ???????????this.target = "Plane"; ???????}; ???????var gui = new dat.GUI(); ???????gui.addColor(controls, ‘ambientColor‘).onChange(function (e) { ???????????ambientLight.color = new THREE.Color(e); ???????}); ???????gui.addColor(controls, ‘pointColor‘).onChange(function (e) { ???????????spotLight.color = new THREE.Color(e); ???????}); ???????gui.add(controls, ‘intensity‘, 0, 5).onChange(function (e) { ???????????spotLight.intensity = e; ???????}); ???????var textureFlare0 = THREE.ImageUtils.loadTexture("../assets/textures/lensflare/lensflare0.png"); ???????var textureFlare3 = THREE.ImageUtils.loadTexture("../assets/textures/lensflare/lensflare3.png");//眩晕设置 ???????var flareColor = new THREE.Color(0xffaacc); ???????var lensFlare = new THREE.LensFlare(textureFlare0, 350, 0.0, THREE.AdditiveBlending, flareColor); ???????lensFlare.add(textureFlare3, 60, 0.6, THREE.AdditiveBlending); ???????lensFlare.add(textureFlare3, 70, 0.7, THREE.AdditiveBlending); ???????lensFlare.add(textureFlare3, 120, 0.9, THREE.AdditiveBlending); ???????lensFlare.add(textureFlare3, 70, 1.0, THREE.AdditiveBlending); ???????lensFlare.position.copy(spotLight.position); ???????scene.add(lensFlare); ???????render(); ???????function render() { ???????????stats.update(); ??????????//选装正方体 ???????????cube.rotation.x += controls.rotationSpeed; ???????????cube.rotation.y += controls.rotationSpeed; ???????????cube.rotation.z += controls.rotationSpeed; ???????????// 旋转球体 ???????????step += controls.bouncingSpeed; ???????????sphere.position.x = 20 + ( 10 * (Math.cos(step))); ???????????sphere.position.y = 2 + ( 10 * Math.abs(Math.sin(step))); ???????????requestAnimationFrame(render); ???????????renderer.render(scene, camera); ???????} ???????function initStats() { ???????????var stats = new Stats(); ???????????stats.setMode(0); // 0: fps, 1: msdistance ???????????????????????stats.domElement.style.position = ‘absolute‘; ???????????stats.domElement.style.left = ‘0px‘; ???????????stats.domElement.style.top = ‘0px‘; ???????????document.getElementById("Stats-output").appendChild(stats.domElement); ???????????return stats; ???????} ???}; ???window.onload = init;</script></body></html>
16-THREE.JS 光晕滤镜
原文地址：https://www.cnblogs.com/shuaihan/p/9878762.html