[vtk-developers] vtkOpenGLTexture logic of PBO usage

[Pokutnev, Pavel (GE EntSol, SensInsp)]

Hello vtk-devs,
 
i have a question about the logic of PBO usage in vtkOpenGLTexture. It
seems that the current implemetation make use of the PBO just the first
render time or if the ivar RenderWindow is not set. Otherweise the ivar
SupportsPBO will be always reseted to false during the
ReleaseGraphicsResource() call in line 309, so the PBO never used. Is it
desired behavior? Or should the ReleaseGraphicsResource() call be moved
to line 255 before CheckHardwareSupport?
 
Best regards!
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