[vtk-developers] Update Custom Uniforms for Shaders

[Milef, Nicholas Boris]

I need to update a custom uniform for a vtkOpenGLPolyDataMapper object. Where would be the best place for me to do this?

I need to update it every render frame. I assume this would be similar to updating one of the color uniforms, but I can't find where those uniforms are updated.

Thanks,
Nick
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