[vtkusers] Extending vtkOpenGLRenderer

[Marcus D. Hanwell]

On Tue, Nov 13, 2018 at 2:18 PM Matthew Troke <
matthew.troke at avalonholographics.com> wrote:

> I think I've figured out that the abstract New() searches all registered
> object factories for an override. My question is if you have 2 modules with
> object factories that override the same base object, which one wins out?
> And can you ensure that a particular override gets chosen?
>

Take a look at
https://github.com/Kitware/VTK/blob/master/Common/Core/Testing/Cxx/TestObjectFactory.cxx
for the object factory in use, figuring out which override wins, etc.
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