Hi, Take a look at this, http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/Subdivision <http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/Subdivision> -- View this message in context: http://vtk.1045678.n5.nabble.com/question-about-polydata-smooth-need-help-tp5725155p5725175.html Sent from the VTK - Users mailing list archive at Nabble.com.