Re: [PyOpenGL-Users] Enums from extensions

[Gary M. <gar...@ph...>]

Dear all,

I've been interested in this kind of thing as well. I found that if I 
import the extension module then the functions and constants are named 
with a string appended. So for instance, I wanted to look at 3D textures 
so I imported OpenGL.GL.EXT.texture3D. The functions in this module all 
have EXT appended to the normal name while the constants have _EXT 
appended instead. I just assigned the extension versions of the 
functions and constants I required to the normal names:
    glTexImage3D = glTexImage3DEXT
    GL_TEXTURE_3D = GL_TEXTURE_3D_EXT

This seems to do the job - at least I am able to use the functions and 
constants - but I have also got some strange results when translating an 
example from C to Python so I might have missed something! Any 
suggestions would be welcome!

A bit of digging about seems to show that GL_DEPTH_COMPONENT24 is in 
OpenGL.GL.SGIX.depth_texture and is named GL_DEPTH_COMPONENT24_SGIX

Cheers,
    Gary

> I see in the documentation how I could import an extension and
> initialize it, but how do I get the enums from an extension?  For
> example right now I would like to use GL_DEPTH_COMPONENT24 in my code
> but I don't know how to get that from PyOpenGL.
>
> Any ideas?
>
> Also, this may have been asked before, but are there any plans to make
> it easier to use the newer "extension" features of OpenGL?  With the
> dynamic nature of python it seems like it would be possible to have
> PyOpenGL dynamically adapt it's interface to any given version of
> OpenGL on the fly.  For example asking PyOpenGL to present the
> standard interface for OpenGL 2.0 it could go out and find any of the
> needed extensions and name them like they are in the 2.0 spec.  This
> would be a great feature and would be unique to PyOpenGL since it
> can't be done in C or C++.
>
> Thanks,
> Allen
>
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> PyOpenGL Homepage
> http://pyopengl.sourceforge.net
> _______________________________________________
> PyOpenGL-Users mailing list
> PyO...@li...
> https://lists.sourceforge.net/lists/listinfo/pyopengl-users
>
>
>