Help wanted: how to view statistics through a scene camera

I’m currently working on a project based on retro graphics, and I want to be able to calculate (real-time) the total number of polygons visible from a camera object. If it can’t “see” the polys, it excludes them from the statistics.

Suggestions?

I would use geometry nodes camera culling for this (google it/youtube)

My work shifts between Blender 2.79 and Blender 2.9, so I can’t use geometry nodes. How would I work around that limitation without using a newer version? All I’m after is the data.

UPDATE:

After some playing around in Blender, I solved the issue. No further replies are necessary, but thanks anyways!