How to find out which sectors are affected by Culling Camera

[Deadcow]

I'm trying to do some optimizations based on visibility of sector (besides of culling).

Basically, I need to get current sector + sector visible through portal, if any.

CullingCamera script is pretty hard to figure out for me, so hints in the right  direction would be appreciated.

Thanks!

[Bryan]

I think you would need to tie into the neighbor loader and pip camera. 
We should have a demo of that in the sectr asset. 
Sectr Vis demo.