DOOM style rendering - Need help

[Brad Broerman <bbroer@one.net>]

I'm working on a DOOM style renderer. I have the walls rendering nicely, but I
need a little help with the floors. I am not sure how to proceed.

 The subsectors do not provide enough information to use an affine texture
mapper, as the subsector is ot surrounded by segments, and doing raycasting does
not seem to work, because you don't know the sector, adn hence the floor height,
of the area you're casting into...

  Anyone out there build a successful DOOM renderer? If so, how did you do the
floors and ceilings?

 Thanks.



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