Is there a filter that can remove coplanar triangles? IE: Many coplanar triangles become just a few. I tried vtkCleanPolyData and I've tried vtkDecimatePro with 0.0 decimation? That didn't even make sense but I didn't know what else to try. -- Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html