Three.js实现3D机房效果

3D机房系统是最近用户的需求,通过相关了解最后使用Three.js,也发现最近有东西可以写出来分享：

分步实现3D效果

一 . 初始化3D模型参数

//参数处理 this.option = new Object(); this.option.antialias = option.antialias || true; this.option.clearCoolr = option.clearCoolr || 0x1b7ace; this.option.showHelpGrid = option.showHelpGrid || false; //对象 this.id = id; this.width = width(); this.height = height(); this.renderer = null;//渲染器 this.scene = null;//场景 this.camera = null;//摄像机 this.selected=null; this.objects = []; this.mouseClick = new THREE.Vector2(); this.raycaster = new THREE.Raycaster(); this.controls = null;//鼠标控制器 this.trsnaformControls = null;//鼠标控制器 this.dragcontrols = null; this.objList = json.objects;//对象列表 this.eventList = json.events;//事件对象列表 this.dragList = []; this.objectStatusList = {}; this.clickList = []; var that = this;

对于一些需要使用的参数,开始加载进行初始化操作。

二 . 开始搭建场景

搭建场景包含一些具体的初始化操作　一些初始化方法(之后才对具体方法加以说明)：

var that = this; room3dObj = that; that.initThree(that.id); //初始化渲染器 that.initCamera(); //初始化摄像机 that.initScene();//创建场景 that.initHelpGrid();//创建网格 that.initLight();//灯光布置 //添加3D对象 $.each(that.objList, function (index,obj) { that.InitAddObject(obj);//添加对象到场景中 }); that.initMouseCtrl();//创建鼠标控制器 that.animation();//循环渲染界面

三 . 初始化渲染器

渲染器 WebGLRenderer　定义语法：

var that = this; that.renderer = new THREE.WebGLRenderer({ alpha: true, antialias: that.option.antialias }); that.renderer.setSize(that.width, that.height); $(“#” + that.id).append(that.renderer.domElement); that.renderer.setClearColor(that.option.clearCoolr, 1.0); that.renderer.shadowMap.enabled = true; that.renderer.shadowMapSoft = true; //事件 that.renderer.domElement.addEventListener(‘mousedown',that.onDocumentMouseDown, false); that.renderer.domElement.addEventListener(‘mousemove',that.onDocumentMouseMove, false);

四 . 初始化摄像机

采用PerspectiveCamera 相机：

var that = this;  that.camera = new THREE.PerspectiveCamera(45, that.width / that.height, 1, 100000);  that.camera.name = 'mainCamera';  that.camera.position.x =0;  that.camera.position.y =2000;  that.camera.position.z =1800;  that.camera.up.x = 0;  that.camera.up.y =1;  that.camera.up.z =0;  that.camera.lookAt({ x: 100, y: 0, z: 100 });  that.objects.push(that.camera);  that.dragList.push(that.camera);  that.clickList.push(that.camera);