Bill!! I was able to convert it to C#. It does work with my real data!! Thank you!! :) -- View this message in context: http://vtk.1045678.n5.nabble.com/Uneven-colors-after-the-vtkButterflySubdivisionFilter-tp5720205p5720266.html Sent from the VTK - Users mailing list archive at Nabble.com.