From: Thomas Harte <T DOT Harte AT btinternet DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: PTEX polygon mapping - how are u/v coordinates written?
Date: Sun, 05 Sep 1999 14:38:53 +0100
Organization: BT Internet
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> However, the texture mapping just gives weird results. Does anyone have any
> clue as to why this? Could it be that I am missing some requirement put upon
> the declaration of u and v coordinates?

	As far as I remember, PTEX differs in Allergo from ATEX in that for each
vertice, you must pass a V3d with z correct as well as x, y, u and v. Is it
possible that you are filling your screen space V3d structures with only x, y,
u and v?

		-Thomas