public void Begin()
{
oldRenderSurface = DeviceMain.GetRenderTarget(0);
oldDepthStencilSurface = DeviceMain.DepthStencilSurface;
DeviceMain.SetRenderTarget(0, renderSurface);
DeviceMain.DepthStencilSurface = renderDepthStencilSurface;
DeviceMain.Clear(ClearFlags.ZBuffer | ClearFlags.Target, new Color4(0.0f, 0.0f, 0.0f, 0.0f), 1f, 0);
}
public void End()
{
DeviceMain.SetRenderTarget(0, oldRenderSurface);
DeviceMain.DepthStencilSurface = oldDepthStencilSurface;
}