I’m using Rhino now since several days. I opened a .obj file which contains a sphere. Using the render view, it looks very smooth and nice. If I now use the “Mesh tools” -> “Remove face”, to remove a face and just add a new one at the same place using “Mesh Tools” -> “Add face”, this part looks really sharp and not smooth anymore.
I hope I explained it correctly. If someone needs more details, just tell me, I will upload a animated gif or so. But maybe this is a well known behavior and also easy to solve.
Please help me.