[vtkusers] Can VTK and OpenGL be used interchangeably?

[M.Salman]

hi all,
It may be a silly question but I am just a novice. Can OPENGL be used as a substitue for VTK.I am having problems with VTK at the moement and was wondering can I use OPENGL instead of VTK.Does OPENGAL cover the full functionality of VTK or is there anything which VTK can do and OPENGL can't.
Thanks very much.

Regards

M.Salman 

                                                                                                     

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