Working on a new map (payload) and I have my first stage complete. Going through and doing the optimizing part. Never been the best at that but getting better. I looked through valve maps and on open doorways (even with no gates or doors) I see they use the area portal texture on the brush the covers the doorway. I tried this on my map and when I compiled it, the area portal texture was visible and the doorway was blocked. What have I done wrong? I tried to do some research on the web and saw a few others talk about making the brush a func_areaportalwindow. I went back to the valve maps to see if I overlooked that and they are not func brushes of any sort. Ahhhhhh help me please. This is gonna be a good map but I want it to play smooth and fast. Thanks. Forgive the brightness of the screenshot, I did not place my tonemap in yet.