pyopengl-users

[PyOpenGL-Users] Extension problems

[J. A. <ja...@ca...>]

Python 2.4.4, PyOpenGL-3.0.0a5 and a4.

glGetString(GL_EXTENSIONS) seems to be returning none. I have no idea why. 
Has anybody any idea what could be causing this? I tried running an 
extension viewer, and it can find them find, however PyOpenGL doesn't seem 
to be able to find any.

I've not used extensions before so there is a chance I could be doing 
something moronic, however I'm not sure. I used the python code fot the 
NeHe lesson 41 (http://nehe.gamedev.net/data/lessons/lesson.asp?lesson=41) 
which I would imagine is meant to work, and after a bit of backtracking 
found that PyOpenGL was trying to split the NoneType object returned from 
glGetString(GL_EXTENSIONS).

Any ideas?

Jeremy Appleyard

Re: [PyOpenGL-Users] Extension problems

[Mike C. F. <mcf...@vr...>]

J. Appleyard wrote:
> Python 2.4.4, PyOpenGL-3.0.0a5 and a4.
>
> glGetString(GL_EXTENSIONS) seems to be returning none. I have no idea why. 
> Has anybody any idea what could be causing this? I tried running an 
> extension viewer, and it can find them find, however PyOpenGL doesn't seem 
> to be able to find any.
>   
You are most likely calling the function before you have a valid 
rendering context.  At least on my machine that returns None.  Calling 
with an active context should return the set of extensions.

HTH,
Mike

-- 
________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://www.vrplumber.com
  http://blog.vrplumber.com