The first is to do with teleporting. Sometimes when teleporting I can see the briefest flash of another location in the map. I had to use FRAPS to grab these screenshots because it happens too quickly to grab manually. Anyway, the first screenshot is just before entering the teleport, the last is the exit for the teleport but the screenshot in the middle is the view I had for a tic or two whilst teleporting. It shouldn't be there and I can see no obvious reason for it to be - no teleport locations there etc. This is not specific to this map BTW.
And seeing as how I was using FRAPS, here's the video.
http://www.zen64060.zen.co.uk/images/teleport.wmv
The second thing is to do with camera textures. I have a level where a computer monitor is switched off when the player enters a room and the player can activate it using a script. The view from a camera is allocated to the camera texture in an open script at level startup. The computer is switched on by changing the texture on the computer screen line to the camera texture using "setlinetexture". This works but sometimes I can momentarily see the half-black/half-pink effect of an uninitialised camera texture before the camera view is painted on the wall. I have noticed that putting the camera texture on a wall in a control sector right from startup (where the player never sees it) seems to remove the problem. I just wanted to check that this was expected behaviour.
