[vtkusers] OpenGL question

[Frank Gao]

Greetings!
New to OpenGL. Have some silly OpenGL questions here:
How do I know if my system is making full usage of the graphics card? Since
VTK is using Microsoft's OpenGL lib, I am wondering whether this means that
it may or may not fully use graphics card hardware acceleration.
Performance wise, do I need to use OpenGL lib from for example NVIDIA? Does
NVIDIA have one at all? Where to get it?
Can somebody point to a 'good' OpenGL lib download? Can VTK use OpenGL 2.0?
Thanks,
Frank

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