I tried that, I have a box shaped map, with the top open. About 3/4ths up the walls of the map, the texture is {blue, and is invisible. So I took the sky brush and completely surround the walls and top (making sure they were touching the walls), and removed the bottom of the sky box (no point because un-seeable). I loaded the map and had EXTREME lag. So I read the tutorial about saying to move texture 1 pixel off, to stop the VIS (or whatever) from choping the texture into several pieces thus increasing r_speeds. So instead I moved the sky box walls, 1 pixel off of my map walls and put a 1 pixel wide little close off at the bottom, making sure it was enclosed, and having all but 1 pixel touching the walls. Once again I got extreme lag. My original set up had the sky box way out, and included a bottom. The lag was very low (still had some from things like touching brushs, no func_walls, etc.). Wouldn't bringing the sky box in closer reduce r_speeds, instead of increasing them?
In other words, I'm having less lag while having my sky box 150-200+ pixels off of my map walls, and including a bottom. Then I am bringing it super close and enclosing it off my walls.
:
Any help would be very appriciated.