How to keep from rendering triangles that can not be seen?

Questions & Answers
1

So, I’m working on a project and I’ve been looking through the documentation and questions on rendering and visibility. So far what I’ve found is that unity does not render anything not in the camera view.

This is obviously true as you can see the tris change and you look around the world.

The issue I’d like to address is that even objects that the player can not see (due to occlusion from other objects) are still being rendered because they are in the field of view and within the far range

I’ve made a little graphic to try and make more clear my intentions

79460-lineofsight.jpg
79460-lineofsight.jpg1366×768 102 KB

Is there a function in unity to do this is will it require the development of new logic?

2

That is called occlusion culling and already a feature in Unity.

Occlusion Culling is a feature that disables rendering of objects when they are not currently seen by the camera because they are obscured (occluded) by other objects.