function ModelLoader(layer3D)
{
	this.parameter = layer3D.layer.parameter;
	this.glassBoxMeshes = layer3D.collectMeshes.glassBoxMeshes;
	this.collidableMeshes=layer3D.collectMeshes.collidableMeshes;
	
	this.scene = layer3D.scene3D.scene;
	this.engine = layer3D.scene3D.engine;
	
	this.furnitureScal=0.2;
	this.currentPhotoMesh=null;
};

//添加画，图
ModelLoader.prototype.showPicture=function(src)
{
	var plan = BABYLON.Mesh.CreatePlane("picture-"+src, 1, this.scene);
	plan.scaling.x=50;
	plan.scaling.y=40;
	plan.floor=layer.selectFloor;
	plan.position=new BABYLON.Vector3(0, (plan.floor-1)*this.parameter.wallHeight, 0);
	var material = new BABYLON.StandardMaterial("planmaterial", this.scene);
	material.diffuseTexture = new BABYLON.Texture(this.wallpicture_pre+src, this.scene);
	material.bumpTexture = new BABYLON.Texture("images/floor1.png", this.scene);
	plan.material=material;
	plan.rotation.x=Math.PI/2;
	
	this.collidableMeshes.push(plan);
};

//添加镜框
ModelLoader.prototype.showPhoFrame=function(src)
{
	BABYLON.SceneLoader.ImportMesh("", "images/3d/", src, this.scene, function (newMeshes)
	{
		newMeshes[0].scaling=new BABYLON.Vector3(this.furnitureScal,this.furnitureScal,this.furnitureScal);
		
		newMeshes[0].computeWorldMatrix(true);
		newMeshes[0].refreshBoundingInfo();
		
		newMeshes[0].position=new BABYLON.Vector3(0,this.parameter.softDecorationY,0);
		//newMeshes[0].name="pho-"+src;
		newMeshes[0].thice=Math.abs(newMeshes[0]._boundingInfo.boundingBox.maximumWorld.z-newMeshes[0]._boundingInfo.boundingBox.minimumWorld.z);
		newMeshes[0].firstHeigh=Math.abs(newMeshes[0]._boundingInfo.boundingBox.maximumWorld.y-newMeshes[0]._boundingInfo.boundingBox.minimumWorld.y);

		this.currentPhotoMesh=newMeshes[0];
		this.currentPhotoMesh.name="photo";
		
		this.currentPhotoMesh.height=newMeshes[0].firstHeigh;
		this.currentPhotoMesh.length=Math.abs(newMeshes[0]._boundingInfo.boundingBox.maximumWorld.x-newMeshes[0]._boundingInfo.boundingBox.minimumWorld.x);
		this.currentPhotoMesh.visibility=0;
		document.getElementById("container3d").style.cursor="url('images/brush.ico'),auto";

		for(var i=0;i<this.currentPhotoMesh._boundingInfo.boundingBox.vectorsWorld.length;++i)
		{
			if(this.currentPhotoMesh._boundingInfo.boundingBox.vectorsWorld[i].z>this.currentPhotoMesh._boundingInfo.boundingBox.minimumWorld.z)
			{
				this.currentPhotoMesh.frontindex=i;
				break;
			}
		}
		this.engine.hideLoadingUI();
	}.bind(this));
};

//初始化时，会有一些三维模型
ModelLoader.prototype.showProductfirst=function(src,position,rotation)
{
	BABYLON.SceneLoader.ImportMesh("", "images/3d/", src, this.scene, function (newMeshes)
	{
		var mesh;
		if(newMeshes.length>1)
		{
			mesh=BABYLON.Mesh.MergeMeshes(newMeshes);
		}
		else
		{
			mesh=newMeshes[0];
		}
		var name=src.replace(".babylon","");
		mesh.scaling=new BABYLON.Vector3(layer.parameter.testModelData[name],layer.parameter.testModelData[name],layer.parameter.testModelData[name]);
		mesh.position=position;
		if(layer.parameter.cabinet.indexOf(name+",")>-1)
		{
			var glassMesh = BABYLON.Mesh.CreateBox("box", 1, this.scene);
			glassMesh.scaling.x=Math.abs(mesh._boundingInfo.maximum.x-mesh._boundingInfo.minimum.x)*mesh.scaling.x-5;
			glassMesh.scaling.y=80;
			glassMesh.scaling.z=Math.abs(mesh._boundingInfo.maximum.z-mesh._boundingInfo.minimum.z)*mesh.scaling.z/1.2;
			glassMesh.position.x=position.x;
			glassMesh.position.y=Math.abs(mesh._boundingInfo.maximum.y-mesh._boundingInfo.minimum.y)*mesh.scaling.y-40;
			glassMesh.position.z=position.z-2;
			glassMesh.visibility = 0.3;
			glassMesh.name="mirror";
			this.glassBoxMeshes.push(glassMesh);
		}
		
		for(var i=0;i<this.collidableMeshes.length;++i)
		{
			if (typeof(this.collidableMeshes[i]) == "undefined") { 
				this.collidableMeshes.splice(i,1);
				--i;
				continue;
				}  
			if (mesh.intersectsMesh(this.collidableMeshes[i], true))
			{
				mesh.iscollision=true;
				break;
			}
		}
		++initMesh;
		if(initMesh>21)
		{
			this.engine.hideLoadingUI();
			initMesh=0;
		}
		mesh.floor=layer.selectFloor;
		mesh.position.y+=(mesh.floor-1)*this.parameter.wallHeight;
		this.collidableMeshes.push(mesh);
	}.bind(this));
	return this.collidableMeshes[this.collidableMeshes.length-1];
};

//加载三维模型
ModelLoader.prototype.showProduct=function(src)
{
	this.engine.displayLoadingUI();
	this.engine.loadingUIText = "正在加载家具，请稍等！";
	BABYLON.SceneLoader.ImportMesh("", "images/3d/", src, this.scene, function (newMeshes)
	{
		var mesh;
		if(newMeshes.length>1)
		{
			mesh=BABYLON.Mesh.MergeMeshes(newMeshes);
		}
		else
		{
			mesh=newMeshes[0];
		}
		var name=src.replace(".babylon","");
		mesh.scaling=new BABYLON.Vector3(layer.parameter.testModelData[name],layer.parameter.testModelData[name],layer.parameter.testModelData[name]);
		mesh.name=src;
		
		for(var i=0;i<this.collidableMeshes.length;++i)
		{
			if (typeof(this.collidableMeshes[i]) == "undefined") { 
				this.collidableMeshes.splice(i,1);
				--i;
				continue;
				}  
			if (mesh.intersectsMesh(this.collidableMeshes[i], true))
			{
				//第一次加载的模型，如果此时和别的模型发生碰撞，则表示可以碰撞，待不和别的模型发送碰撞时候，再实现不可碰撞
				mesh.iscollision=true;
				break;
			}
		}
		mesh.floor=layer.selectFloor;
		mesh.position.y=(mesh.floor-1)*this.parameter.wallHeight;
		this.collidableMeshes.push(mesh);
		this.engine.hideLoadingUI();
	}.bind(this));
};