area portal

Hello, I have created a brush with func_areaportal and assigned the texture to the whole brush. The brush itself is the size of the door and aligned with the wall. The problem is that I can see the void from the inside of spawn, however once I get close to the door and it opens the problem isn't...

I really do not know how area portal works I simply added some to my map and compiled it and now I get this error when I try to enter the map: "portal> numareaportals" here an img of the room where I added the area portal and under the compiled log... materialPath: C:\Program Files...

Heyo. I got some problems with maps again. When I approach the saws, they disappear. The room with the saws in question are separated with an area portal from other rooms, yet, the saws render when the room its in doesn't. I tried to fix this by expanding the visleaf the saws are...

i was trying recently to add area portal to my map. basicly in every doorway i had and in every 'house doors or windows and it doesnt work.its says that area portals make the map not you know update-work. and i am pressing control - T and name is areaportal like everyone else. what am i doing...

well to reduce even more lag on my map i made a new version of it and i added quite a lot area_portal to the doors only but when i open tf2 and go to the map it crashes and says something for area_portal should i do something different? or am i making something wrong? feel free to tell me down...

Hey, I'm developing a custom gamemode and the maps tend to be really really open and wide. For that reason I can barely use any areaportals to gain FPS. I am currently using fog and nodraw as my main optimization methods. Are there any other methods of optimizing a very open map?