[vtkusers] vtkUnstructuredGridVolumeRayCastMapper (05B22CB8): Can't use the ray cast mapper without scalars!

[Ali Habib]

I wrote a code to make tetrahedral mesh on sphere , but it no give result
except :

ERROR: In
m:\dev\cur\vtkdotnet\branch\50\VolumeRendering\vtkUnstructuredGridVolumeRayCastMapper.cxx,
line 274
vtkUnstructuredGridVolumeRayCastMapper (05B22CB8): Can't use the ray cast
mapper without scalars!

every time I  run the code

attached is the c++ code , your fast reply is highly appretiated


best regards
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