As mentioned when you were implementing this, you can't do anything to optimize the near plane as things stand.  You first need the interior volume and not the exterior AABB.  If you try to optimize using the exterior AABB it will simply introduce false positives, near plane must remain a…

JoeJ said:
Yes. But my understanding is only very basic. The idea is similar to how we use occlusion queries. I think it would work somehow like this: You have clusters of geometry (like your ‘regions’). Each cluster has a bounding box, which you convert to bounding rectangles in screen space, which…