To:	arcanix AT erols DOT com
Cc:	djgpp AT delorie DOT com
Subject:	Re: Question about Doom.
Message-ID:	<19970322.205936.7063.0.fwec@juno.com>
References:	<199703211735 DOT JAA29516 AT netcom9 DOT netcom DOT com> <3332FA0B DOT 3418 AT shoreland DOT com DOT nospam>
From:	fwec AT juno DOT com (Mark T Logan)
Date:	Sat, 22 Mar 1997 21:01:37 EST

On Sat, 22 Mar 1997 00:39:06 -0500 Francisco Gochez <arcanix AT erols DOT com>
writes:
>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?

I also have no idea what sector flowing is.  I would like to know what it
is.  I expained a one-d completion mask in an earlier post.


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