Mesh internal surface smoothing behavior changed in vtkWindowedSincPolyDataFilter - Support - VTK
It seems that the rewrite of vtkWindowedSincPolyDataFilter (that amazingly improved its performance) also changed how internal surfaces are smoothed. Smoothing of internal surfaces are important because when we segment a medical image we usually annotate many adjacent structures that have common surfaces and when we apply smoothing then we want to smooth surface of each structure and not just the outer surface of the entire segmented region. The old version (VTK8) smoothed the internal surfaces
vtk: how to smooth surface? - Support - VTK
Smooth surface boundary - Support - VTK
Surface_mesh.jpg
Change in rendering of semi-opaque solid meshes with edges enabled - Support - VTK
Is it possible to use smooth shading? · pyvista pyvista · Discussion #2209 · GitHub
Feature request: add ACVD uniform remeshing filter - Development - VTK
Problem with crossing tubes - Support - 3D Slicer Community
Surface mesh with multiple scalar data - Support - 3D Slicer Community
vtkWindowedSincPolydataFilter not affecting polydata · Issue #2082 · Kitware/vtk-js · GitHub
Interpolating data between meshes