From: Francisco Gochez <arcanix AT erols DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: John Carmack <johnc AT idnewt DOT idsoftware DOT com>: Re: Question about Doom.
Date: Sat, 22 Mar 1997 00:39:06 -0500
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References: <199703211735 DOT JAA29516 AT netcom9 DOT netcom DOT com> <3332FA0B DOT 3418 AT shoreland DOT com DOT nospam>
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Ray Ratelis wrote:
> 
> > > Wolfenstein 3D used ray casting.
> > > Doom used BSP trees and a one dimensional completion mask.
> > > Duke3D used sector flowing.
> > > Quake used BSP trees, a PVS, and an edge list.
> 
> What is Sector Flowing?

I would also like to know what sector flowing is.  I am impressed by the 
build engine's lack of a BSP tree.  Also, what the heck is a one 
dimesional completion mask?

> 
> --
> ******************************
> * Ray Ratelis                *
> * mailto:ray AT shoreland DOT com   *
> ******************************