Since I'm developing Doom++ in parallell with DoomSharp, I've decided to lend a hand with the nastiest part of it all.. perspective correct rendering

I'm working on a tutorial that will be available at http://www.abo.fi/~ksugii/ptm.html quite soon..

Until then I'm going to post a very revealing little artwork I made a while ago trying to figure out the magic numbers:



Have fun