From: Simon Strandgaard <0bz63fz3m1qt3001@...>
Date: 2003-05-27T07:02:26+09:00
Subject: Re: OpenGL and large texture bitmaps

On Tue, 27 May 2003 06:12:21 +0900, Joel VanderWerf wrote:

> 
> I'm trying to use a large (1024x1024) bitmap as a texture. I started 
> with the texbind.rb example in the ruby opengl package.
> 
> The problem is that this code gives me a GL_INVALID_VALUE error for any 
> bitmap larger than 256x256. I've tried using both RGB and RGBA formats, 
> with appropriate modifications to the GL calls.
> 
> This is probably not a problem with the ruby opengl package, but with my 
> understanding of opengl, so it may be off topic. But if anyone here 
> wants to take a look, the two files are at:
> 
> http://PATH.Berkeley.EDU/~vjoel/ruby/texture-bug/
> 
> The first few lines of bug.rb explains how to generate the problem (in 
> the 1024x1024 and 512x512 cases) and how to avoid the problem (by 
> cutting the image down to 256x256). Thanks for any help!


I think I saw this on 'comp.graphics.api.opengl' yesterday.

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&safe=off&threadm=bajfug%24eoic%241%40ID-44132.news.dfncis.de&rnum=1&prev=/groups%3Fhl%3Den%26lr%3D%26ie%3DISO-8859-1%26safe%3Doff%26q%3Dopengl%2Btexture%2Bsize%2Bmax%2Bbindtexture


--
Simon Strandgaard