Re: [pygame] GLSL in Pygame on a Mac

[Brandon N <kordova@xxxxxxxxx>]

Thanks, that seems to be the solution.

Interestingly, perhaps this is a Python feature that I am unaware of  
but this seems strange to me:

>>> import ctypes
>>> ctypes.util.find_library
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
AttributeError: 'module' object has no attribute 'util'
>>> from ctypes.util import find_library
>>>

Is there something unique about the util module in ctypes?

Thanks again!

Cheers,
  Brandon

On Dec 16, 2006, at 10:54 PM, Alex Holkner wrote:

> Brandon N wrote:
>
> > Hello,
> >   I recently came across the GLSL example at: http:// 
> > www.pygame.org/ wiki/GLSLExample
> >
> >   This would appear to meet my needs for using GLSL from within   
> > pygame, but I cannot seem to get it working. First, as I am not   
> > really familiar with the Python wrapper of OpenGL, is that  
> > example  Mac friendly? If so, is there a reason why it would fail  
> > on my  machine when I have OpenGL installed?
> >
> > My exception (which just shows that neither loading method is  
> > working):
> > OSError: dlopen(libGL.so, 6): image not found
> >
> > at file root
> >   in shader_test.py at line 14
> > function LoadLibrary
> >   in __init__.py at line 395
> > function __init__
> >   in __init__.py at line 312
> >
> > I am not really certain where to go with this, so thanks for any   
> > assistance!
>
> The example is Linux-centric, trying to load libGL.so.  On Mac, the  
> functions are in the OpenGL.framework.  Replace the line  `gl =  
> cdll.LoadLibrary('libGL.so')` with
>
>     import ctypes.util
>     path = ctypes.util.find_library('OpenGL')    # finds the  
> absolute path to the framework
>     gl = cdll.LoadLibrary(path)
>
> Cheers
> Alex.