[vtkusers] VTK crashes when adding multiple lights

[Ken Martin]

It is currently coded for a maximum of 6. In vtkOpenGLPolyDataMapper.cxx
there are a bunch of [6] associated with the lighting code that could be
made more general and specified at run time.

On Sat, Jan 14, 2017 at 1:35 PM, Carlos Lopez <rcourant at gmail.com> wrote:

> Hello Everyone,
>
> I'm working on illuminating a scene and noticed that adding more than 6
> lights cause issues; if they are not positional, then spurious colors start
> appearing after adding 6 and vtk crashes after adding 19 lights.
> It the lamps are positional, then it crashes when adding more than 6.
>
> I'm not sure this is a bug, but the vtk light class does not indicate such
> a limitation.
>
> best,
> carlos
>
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Ken Martin PhD
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