1. When using an areaportalwindow, does the geometry enclosed in and behind it effectively cease to render when the rendered window is fully opaque? And if not, what is the purpose of the rendered window?
2. What does it mean if I have geometry that's rendering like this in-game: I assume it means there is too much geometry being rendered at one time. Thing is, I set up areportalwindows with hopes to remedy that problem (on the belief that the answer to my previous question is yes.) The func_brush pictured is identical to several others in the same room which render perfectly. If I put more than 22 of them in the room, the remainder render like shown in the image. But I have set up the areaportalwindows such that no more than ~10 of them are visible (not encolsed in an opaque rendered window) at any given time.
I have tried using func_lod's instead and got buggy results. That's aside from the fact that I need these brushed to cast shadows.