rendering to texture

//Create some variables for the render to texture methodtexture = new Texture(renderer.Device, 128, 128, 1, Usage.RenderTarget, Format.X8R8G8B8, Pool.Default);surface = texture.GetSurfaceLevel(0);//Render to texture methodprivate void RenderToTexture(){	Surface oldRenderTarget = renderer.Device.GetRenderTarget(0);	renderer.Device.SetRenderTarget(0, surface);	renderer.Device.Clear(ClearFlags.Target | ClearFlags.ZBuffer, Color.Black.ToArgb(), 1.0f, 0);	renderer.Device.BeginScene();	renderer.Device.Material = material;	renderer.Device.Transform.World = matWorld;	cube.DrawSubset(0);	renderer.Device.EndScene();	renderer.Device.SetRenderTarget(0, oldRenderTarget);}//Call the Render method and Render to texture first.//The Sprite will then render our rendered-to-texture texturepublic void Render(){	RenderToTexture();	renderer.BeginRender(Color.Black);	renderer.Device.Material = material;	renderer.Device.Transform.World = matWorld;	cube.DrawSubset(0);	using(Sprite s = new Sprite(renderer.Device))	{		s.Begin(SpriteFlags.None);		s.Draw(texture, new Rectangle(0, 0, 128, 128), new Vector3(0.0f, 0.0f, 0.0f), new Vector3(0.0f, 0.0f, 0.0f), Color.White);		s.End();	}	renderer.EndRender();}