Mail Archives: djgpp/1999/09/05/11:06:12
From: | Thomas Harte <T DOT Harte AT btinternet DOT com>
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Newsgroups: | comp.os.msdos.djgpp
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Subject: | Re: PTEX polygon mapping - how are u/v coordinates written?
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Date: | Sun, 05 Sep 1999 14:38:53 +0100
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Organization: | BT Internet
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Lines: | 10
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Message-ID: | <37D2726D.C0D84AA5@btinternet.com>
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References: | <7qtr2g$ng4$1 AT cubacola DOT tninet DOT se>
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To: | djgpp AT delorie DOT com
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DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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Reply-To: | djgpp AT delorie DOT com
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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
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