[vtkusers] Deleunay3D -->UnstructuredGridRayCast : without scalars

[Mohammed Amine SAHTARI]

Hi experts,

I have a polydata which contains a set of points and their data
attributes (Scalars) of type vtkIntArray.
I use the filter Delaunay3D in order to tetrahedralize this data. In this
way, I can do volume rendering by using
vtkUnstructuredGridRayCastVolumeMapper.

However , when I got this :
ERROR : Can't use the ray cast mapper without scalars!

Is there anyone who has an idea/issue of this matter ?

Thank you in advance.

Best regerads!

Amine
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