[LayaAir 1.0]layair3d怎么建立个平面 然后贴图

var Plane:MeshSprite3D = scene.addChild(new MeshSprite3D( new PlaneMesh())) as MeshSprite3D;
            Plane.transform.rotate(new Vector3(0,45,0),false,false);
            var material:StandardMaterial = new StandardMaterial();
            material.diffuseTexture = Texture2D.load("res/layabox.png");
            Plane.meshRender.material = material;