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I wrote this writeup on the Doom rendering engine a few days ago, it details how all the various parts of the rendering engine work together.
Writing it was actually an educational experience. I had to read through the source to clarify several things which I didnt understand and I've ended up understanding it better than I ever did before.
Anyway, I hope people find it informative and perhaps helpful. There only seem to be a few people that I've heard of who totally understand how everything works in the Doom engine.
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I repeat : yeah to me! :P
Time to update this little text of yourse I guess. ;)
Well, technically we're both right. My writeup is supposed to be a fairly high level description of the engine, so describing visplanes as built from of vertical strips seems a better point of view. I'll certainly add a note in about it though.