protected void Clean()
{
// clean up all resources
// anything we missed will show up in the debug output
Vertices.Close();
Vertexbuffer.Dispose();
Layout.Dispose();
InputSignature.Dispose();
Vertexshader.Dispose();
Pixelshader.Dispose();
Rendertarget.Dispose();
_swapchain.Dispose();
_device.Dispose();
}
