From:	Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: 3D-boy is back!
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NNTP-Posting-Date:	Mon, 11 Sep 2000 02:27:06 GMT
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Date:	Mon, 11 Sep 2000 02:27:06 GMT
To:	djgpp AT delorie DOT com
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On Sun, 10 Sep 2000 19:20:22 -0500, "23yrold3yrold" <cbarry AT pangea DOT ca>
wrote:

>void get_camera_matrix(MATRIX *m, fixed x, y, z, xfront, yfront, zfront,
>fixed xup, yup, zup, fov, aspect);
>
>The first four and last two I understand, but the front's and up's don't
>make any sense to me whatsoever. Are the 'in front' variables

in front is a vector toward what you want to look at, preferably
normalized to length 1.00000

>What is an 'up' direction vector?

up is a vector perpendicular to in front that should point out the top
of the camera.

>Also, does it matter in what order you apply this
>matrix to an object? I assume one should do it last.

last is ok.

>2. What is a good way of creating a 3D model

http://www.blender.nl/

>I know not a whole lot of 3D chat goes on here

news:comp.graphics.algorithms

>but I really could use an Allegro-specific answer

http://alleg.sourceforge.net/allegro/maillist.html

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