Path: utzoo!news-server.csri.toronto.edu!rutgers!att!pacbell.com!tandem!netcom!rodent
From: rodent@netcom.COM (Ben Discoe)
Newsgroups: comp.sys.amiga.programmer
Subject: Re: 3D Graphics
Message-ID: <27984@netcom.COM>
Date: 13 Mar 91 02:15:13 GMT
References: <91067.230242R18QC@CUNYVM.BITNET> <1991Mar10.183032.17717@hoss.unl.edu> <1991Mar11.192635.6235@ucunix.san.uc.edu>
Organization: Netcom - Online Communication Services  UNIX System {408 241-9760 guest}
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reher@ucunix.san.uc.edu (Jay R. Reher) writes:
>	I do belive the word you are looking for is Z-buffering. Depth Cueing
>refers to items looking darker the further they are away from the viewer.

For crying out loud, we're talking Amigas here.  Can you imagine doing
several frames a second using software Z-buffering?  No way.  A BSP tree
method might certainly do some good (assuming only the viewpoint moves,
which is a rather severe assumption).  We're talking depth sorting here,
not depth cueing (who mentioned cueing?)  The Newell-etc. algorithm is
the best method I've found after two years of coding, study, and reading
every textbook on the subject.  If you've got a real suggestion, there are
several of us very much interested!

>it works well and the display code is easy to write.
>						Jay Reher

...and takes several minutes for a scene of average complexity, at least.
Any ideas for something usable for virtual reality (what we're all
interested in nowadays), say, at minimum 1 frame a second?

........Ben, trying to be nice but having sweated blood on this project
for a long time, may start to show signs of cracking.  Sorry.