[visionegg] Texture artifacts

Hello all, 

This is very likely a simple fix:

When loading textures and superimposing them atop other stimuli, I often get
visual artifacts around the edges of the texture, likely due to OpenGL
texture manipulations.  I have included a jpeg image of a screen capture
with one such texture artifact (in this case, the top and right edges are
shown as grey bars, where the texture meets the background).

I have tried different internal_format settings to no avail.  I have seen
this problem before in previous studies and found that I had to actually
draw my stimuli using the Python Imaging Library.

Anybody know a workaround for this?

Cheers, 

-=Gabriel Nevarez
Research Programmer
Psychology Department
Cardiff University
http://www.cf.ac.uk/psych

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