public void Shutdown() { // Release the camera object. Camera = null; // Release the transparent shader object. TransparentShader?.ShutDown(); TransparentShader = null; // Release the texture shader object. TextureShader?.ShutDown(); TextureShader = null; //// Release the model object. Model?.Shutdown(); Model = null; Model2?.Shutdown(); Model2 = null; // Release the Direct3D object. D3D?.ShutDown(); D3D = null; }