Thank you, it worked like a charm! Can you also help me render a gridline behind the mesh like this: <http://vtk.1045678.n5.nabble.com/file/t342418/halpaa.png> I tried looking up on google but couldn't find anything about it.. Cheers -- Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html