OSDev.org

Posted: **Mon Jun 30, 2008 3:03 am**

How can I use OpenGL extensions like ARB_vertex_program and ARB_fragment_program? Are OpenGL extensions implemented and handled by graphics' drivers? Or...?

Posted: **Mon Jun 30, 2008 9:22 am**

I don't even *use* OpenGL, but I found what you're looking for.. via Google!

<GL/glext.h> from Mesa seems to contain those "ARB" functions...

http://oss.sgi.com/projects/ogl-sample/ ... rogram.txt
http://oss.sgi.com/projects/ogl-sample/ ... rogram.txt
http://www.devmaster.net/forums/showthread.php?t=280
http://www.3ddrome.com/articles/cgshaders.php

Your Google-fu needs improvement.

EDIT: It would seem Mesa will use software fall back if those extensions aren't supported natviely by the card, I guess that was your question? As for Windows, I don't know.

Posted: **Mon Jun 30, 2008 9:30 am**

Jeko,

As with your other post, please take this as a warning to read the forum rules and do some background reading before you ask such a non-specific question. Looking at your other posts, you now seem to be trying to implement OpenGL without first having implemented graphics drivers.

Before doing anything else, research.

Cheers,
Adam

OSDev.org

OpenGL fragment and vertex shader extentions

OpenGL fragment and vertex shader extentions

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Re: OpenGL fragment and vertex shader extentions