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

Wenlong Wang scc.wwl at gmail.com
Wed Aug 31 10:08:50 EDT 2011

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

Thank you for your kindly help.


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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20110831/f6936e10/attachment.htm>

More information about the vtkusers mailing list