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Re: texture_coord [message #27723 is a reply to message #27722]

Thu, 01 November 2001 17:07

Mark Hadfield
Messages: 783
Registered: May 1995

Senior Member

From: "David Fanning" <david@dfanning.com>
> So we all remember how to do it, I've added an article to
> my web page:
>
> http://www.dfanning.com/ographics_tips/imgtex.html
>
> I've also cobbled together an example program:
>
> http://www.dfanning.com/programs/texture_surface.pro

Great work, David.

> Note that the article talks about a couple of unresolved
> issues. First, when I position the image as above, I don't
> seem to have control over what color the *rest* of the
> surface is.

I see that in your screenshots it is yellow. On my system it is dull green.
Curious!

> Second, the positioned image seems to have
> problems around its edges.

Your test image ('rose.jpg') is 227 x 149 pixels. Texture-map image
dimensions are supposed to be a power of 2 (or so I was informed some time
ago when I complained to RSI about misalignment problems). As I understand
it, this is an OpenGL restriction.

---
Mark Hadfield
m.hadfield@niwa.cri.nz http://katipo.niwa.cri.nz/~hadfield
National Institute for Water and Atmospheric Research

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[Message index]

		Re: texture_coord By: Mark Hadfield on Sun, 04 November 2001 13:23
		Re: texture_coord By: David Fanning on Sun, 04 November 2001 08:53
		Re: texture_coord By: Karl Schultz on Fri, 02 November 2001 09:49
		Re: texture_coord By: David Fanning on Fri, 02 November 2001 09:30
		Re: texture_coord By: Pavel A. Romashkin on Fri, 02 November 2001 09:16
		Re: texture_coord By: David Fanning on Fri, 02 November 2001 09:04
		Re: texture_coord By: Karl Schultz on Fri, 02 November 2001 08:46
		Re: texture_coord By: Karl Schultz on Fri, 02 November 2001 08:39
		Re: texture_coord By: David Fanning on Fri, 02 November 2001 07:09
		Re: texture_coord By: Mark Hadfield on Thu, 01 November 2001 18:48
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 17:31
		Re: texture_coord By: Mark Hadfield on Thu, 01 November 2001 17:07
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 16:34
		Re: texture_coord By: Harald von der Osten-[1] on Thu, 01 November 2001 10:48
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 09:57
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 09:53
		Re: texture_coord By: Karl Schultz on Thu, 01 November 2001 08:11
		Re: texture_coord By: David Fanning on Thu, 01 November 2001 07:18

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