private void ExecutePostRenderFunctions()
{
//Back on the main thread we can now safely pass data back to the user
InvokePostRenderingSurfaceCopyCallbacks();
//Process queued framework item destruction
_surfaceManager.ProcessPendingDestruction();
_renderStageManager.ProcessPendingDestruction();
_viewportManager.ProcessPendingDestruction();
_fontManager.ProcessPendingDestruction();
_cameraManager.ProcessPendingDestruction();
}