[vtkusers] how can I tell in vtk if software opengl rendering is being used?

[Mark Roden]

Hi all,

Here's another troublesome deployment problem.  I've found that the supplied
drivers for some Intel chips on Windows don't automatically install the
hardware opengl drivers and instead revert to software drivers, greatly
slowing down the rendering process.  Is there a way in vtk to determine if
the rendering pipeline is hardware or software based?

Thanks,
Mark
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