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Thread: GLError: <unprintable GLError object>

  1. #1
    Junior Member Newbie
    Join Date
    Apr 2011
    Posts
    2

    GLError:

    Hi all, I am new to programming with Python. My program runs successfully to a point however I am getting an error thrown after a number of iterations:
    GLError: <unprintable GLError object>

    Traceback (most recent call last):
    File "C:\Users\u276181\Documents\Python\justin3-AA.py", line 423, in <module>
    exp.blocks[0].trials[trial].stimuli[5].preload() -\
    File "C:\Python26\lib\site-packages\expyriment\stimuli\base.py", line 546, in preload
    self.ogl_screen.refresh()
    File "C:\Python26\lib\site-packages\expyriment\stimuli\base.py", line 217, in refresh
    self._txtr = Visual._load_texture(self._surfTotal)
    File "C:\Python26\lib\site-packages\expyriment\stimuli\base.py", line 112, in _load_texture
    ogl.GL_RGBA, ogl.GL_UNSIGNED_BYTE, textureData)
    File "C:\Python26\lib\site-packages\OpenGL\latebind.py", line 41, in __call__
    return self._finalCall( *args, **named )
    File "C:\Python26\lib\site-packages\OpenGL\wrapper.py", line 791, in wrapperCall
    raise err
    GLError: <unprintable GLError object>

    Can anyone advise please?

    Thanks,
    Justin

  2. #2
    Junior Member Newbie
    Join Date
    Apr 2011
    Posts
    2

    Re: GLError:

    Ok, so maybe I havnt provided adequate information, but I really need help with this problem. Since I thought it may be a memory allocation error I tried calling gc.collect() to try and force-free-up some memory but this didnt fix the problem. I also get the error message:

    Traceback (most recent call last):
    File "C:\Users\u276181\Documents\Python\justin3-AA.py", line 436, in <module>
    exp.blocks[0].trials[trial].stimuli[5].preload() -\
    File "C:\Python26\lib\site-packages\expyriment\stimuli\base.py", line 544, in preload
    position=self.position)
    File "C:\Python26\lib\site-packages\expyriment\stimuli\base.py", line 180, in __init__
    self.clear()
    File "C:\Python26\lib\site-packages\expyriment\stimuli\base.py", line 189, in clear
    (powerOfTwo, powerOfTwo), pygame.SRCALPHA, 32).convert_alpha()
    error: Out of memory

    on some occasions. Any ideas?

    Thanks,
    justin

  3. #3
    Super Moderator OpenGL Lord
    Join Date
    Dec 2003
    Location
    Grenoble - France
    Posts
    5,574

    Re: GLError:

    Hard to say, it seems it depends on the wrapper you use ? Is that PyOpenGL ?

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