From: broeker AT acp3bf DOT knirsch DOT de (Hans-Bernhard Broeker)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Request for help with camera matrix.
Date: 3 Jan 2000 17:09:49 +0100
Organization: RWTH Aachen, III. physikalisches Institut B
Lines: 24
Distribution: world
Message-ID: <84qhkd$13g@acp3bf.knirsch.de>
References: <386717B0 DOT EF1E4F98 AT ozemail DOT com DOT au>
NNTP-Posting-Host: acp3bf.physik.rwth-aachen.de
X-Trace: nets3.rz.RWTH-Aachen.DE 946915792 20021 137.226.32.75 (3 Jan 2000 16:09:52 GMT)
X-Complaints-To: abuse AT rwth-aachen DOT de
NNTP-Posting-Date: 3 Jan 2000 16:09:52 GMT
X-Newsreader: TIN [version 1.2 PL2]
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

QarnoS (qarnos AT ozemail DOT com DOT au) wrote:
> The engine itself runs perfectly; there is no problem with rendering of
> 3d objects, my problem is with camera movement, or more specifially,
> camera movement & rotation relative to it's current position and
> direction.
[...]
> What I need to know is, how do I Make relative movements & rotations of
> the camera, taking into account the current horizontal and vertical
> planes of the camera (ie: The front & up vectors)? I have an inkling I'm
> going to need to use an alignment matrix, but I just can't get it to
> work properly.

You're asking the wrong people -- your question is in no way specific
to DJGPP or Allegro. This subject is covered in a different newsgroup:

	comp.graphics.algorithms

Look up their FAQ, or one of the books recommended by it. Or ask the
question there, if you can't understand the FAQ.


-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.