[vtkusers] How to get intensity of a point on a 3D model

[Wenlong Wang]

Thanks, David. I can refresh this issue time to time. Maybe someone knows
can help me.

Thank you for your kindly help.

Wenlong

2011/8/31 David Doria <daviddoria at gmail.com>

> >> The intensity I mentioned is light intensity on particular point on my
> >> model. My model is composed by 5090 3D points. I put all these points
> into a
> >> vtkPolyData object and bind it to an vtkActor. I haven't set any
> lighting
> >> sources but ambient light.
> >>
> >> Yes, I want to know how much light in the scene is reflecting from a
> >> particular point at the surface of my model.
> > And yes, the model is a mesh.
>
> >> Thank you very much.
> >>
> >> Wenlong
>
> Please keep your replies on the mailing list so everyone can help and
> learn.
>
> How do you want to specify the point at which to get the intensity? As
> a 3D point? Do you want the intensities only at points that exist in
> your model? Or also at points inside the model triangles?
>
> Unfortunately I've never done this, but this information will
> certainly help you get an answer from someone who has.
>
> David
>
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