[vtkusers] Set vertex normals ?

[David E DeMarle]

vtkPolyData->GetPointData()->SetNormals(your 3component wide x numcells
tuple long array) should do the trick.



David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Thu, Oct 22, 2015 at 1:32 PM, Ronald Levine <rl at quantcomp.com> wrote:

> I have a large quad mesh (easily decomposed into a set of triangle strips)
> whose positions AND vertex normals (point normals) are mathematically
> generated.  I want to render the surface with Gouraud shading using my
> supplied vertex normals.  I do not want the system to estimate the point
> normals from the triangle geometry.
>
> Working in Python, where it's easy to experiment, I don't see any way to do
> that.  Neither does reading the C++ documentation provide any clues.
>
> Thanks for any helpful comments.
>
> RL
>
>
>
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