mesh - Cylinder has small wierd bumps when using Subdivision Surface - Blender Stack Exchange
modeling - Why does Subdivide Smooth look different when compared to the Subsurf modifier? - Blender Stack Exchange
Please help me, how can I smooth those lines? I thought that subdivision surface smooths those corners, but no :( I don't get the logic how some lines are smooth and some
Subdivision Surface Modifier — Blender Manual
1.7.8.1. Subdivide — MCell and CellBlender Tutorials
Blender 3D- The Subdivision Surface Modifier and Edge Creasing - YouTube