[vtkusers] Polygon colouring

[Gib Bogle]

I'm rendering a shape using vtkPolyData, i.e. as a collection of polygons.  Is there a way to colour each polygon separately?

polygonPolyData = vtkSmartPointer<vtkPolyData>::New();
polygonPolyData->SetPoints(points);
polygonPolyData->SetPolys(polygons);
hexmapper = vtkSmartPointer<vtkPolyDataMapper>::New();
hexmapper->SetInput(polygonPolyData);
hexactor = vtkSmartPointer<vtkActor>::New();
hexactor->SetMapper(hexmapper);

ren->AddActor(hexactor);

Thanks
Gib
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