C++ Post-Postprocessing callback?

Development Rendering
1

I have some custom post-processing that I’d like to do in C++.

Is there a callback after FSceneRenderer does its work and before FSlateRenderer starts? Something akin to FSlateRenderer::FOnBackBufferReadyToPresent only sooner.

If not, what’s the best way to add a new c++ post processor?

2

FYI if anyone else is trying to accomplish this, I found a way.

It involves overloading FDefaultDynamicResolutionState and calling Gengine->ChangeDynamicResolutionStateAtNextFrame() with the new object that contains the callback.