Unfortunately I have to play Doom without OpenGl these days because my laptop has palpitations if I try using it on Doom maps as complex as these. On the other hand it means I can spot all the software mode related problems.

Something that came to my attention were these strange graphical artifacts.





At first I thought they were slime trails, a problem inherent to the software renderer, but it actually seem to be a dummy-sector outside the map that bleeds through the walls at certain angles. Why it is doing this I cannot say but it looks very bad. Also note the armour bonus that appears to be hovering in mid-air in the second shot, as if it thinks it is inside another sector with a different floor height. Perhaps this is the result of an unclosed sector or node error?

This appears to have been fixed somehow. It does not seem to happen anymore in the recent builds. Case closed I guess.