Culling

I had a lot of struggle with Precomputed Visibilty volumes, because I didn't understand how it worked and how I should mark an area. I learned that it should be kept only where you're able to walk and it should only collide with the floor, otherwise you can get boxes where you don't want them.

After comparing the difference I feel like it either doesn't impact much or adds a bit of a negative effect to performance. Below you can see the same scene but the first without the volumes and the second one with. I'm not sure what's causing the loss, since comparing the values in the list doesn't give much difference. I guess the next step is to get rid of the all the boxes.