[PyOpenGL-Users] osmesa platform not working

[Richard G. <ric...@cb...>]

Hello,

I am trying to get a project (pyoptools) to work which requires using 
pyopengl with the osmesa platform and am running into an issue.

I can normally import OpenGL.GL fine, however after setting the 
environment variable PYOPENGL_PLATFORM=osmesa it fails to load :

>>> from OpenGL.GL import *  Traceback (most recent call last): File "<stdin>", line 1, in <module> 
File "/usr/lib/python3.6/site-packages/OpenGL/GL/__init__.py", line 4, 
in <module> from OpenGL.GL.VERSION.GL_1_1 import * File 
"/usr/lib/python3.6/site-packages/OpenGL/GL/VERSION/GL_1_1.py", line 14, 
in <module> from OpenGL.raw.GL.VERSION.GL_1_1 import * File 
"/usr/lib/python3.6/site-packages/OpenGL/raw/GL/VERSION/GL_1_1.py", line 
7, in <module> from OpenGL.raw.GL import _errors File 
"/usr/lib/python3.6/site-packages/OpenGL/raw/GL/_errors.py", line 4, in 
<module> _error_checker = _ErrorChecker( _p, _p.GL.glGetError ) File 
"/usr/lib64/python3.6/ctypes/__init__.py", line 356, in __getattr__ func 
= self.__getitem__(name) File "/usr/lib64/python3.6/ctypes/__init__.py", 
line 361, in __getitem__ func = self._FuncPtr((name_or_ordinal, self)) 
AttributeError: /lib64/libOSMesa.so.8: undefined symbol: glGetError

I have tried this on a fedora 27 system and a recent arch linux system. 
It seem like there might have been a change with libOSMesa, or it is 
trying to load the wrong library. Checking the symbols in libOSMesa.so.8 
using "nm -D", I don't see glGetError, or any other similar glGet* 
symbols like what I can see in libGL.so.

Any help much appreciated.

Thanks,

--

Richard





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