Greetings to everybody,
I’m trying to model this gland showed on left side. I’ve been using a cube on start. After I add subdivision surface modifier I have a problem with some sharp edges. How to smooth it out?
My second problem is making that kind of inset (mark with red quad on picture). I’ve been trying with Knife tool, but sharp edges is also problem after subsurf.
Here is my screenshot:
Thank’s in advance,
Nikola N.
You may try to select all the vertices and Mesh > Edges > Clear sharp, if you accidentally added a sharp edge somewhere.
But this seems more like a case of a bad topology, so where you have more density of vertices they will be subdivided even more in detail. It means that if, in the sharp zones, you have 2 close loops of vertices that deline the shape, with subsurf you’ll obtain more subdivisions on a very little zone, that makes it sharper.
Post your wireframe image… 
You may have 2 verts in the same spot.
I tryed with clear sharp, but without effect. Here I have my wireframe image.
I had this same exact issue with a few meshes of mine recently. I think it’s something I’m doing wrong 
but…
This is what fixed it for me:
for some reason, the shortcut Shift+N would not work every time, but does in fact work, so you could try shift+n first… However, this manual operation reliably solved this issue for me.
also, you could try selecting local geometry around that area with the sharp edge and/or point, and use the recalculate normals shortcut. This can work as well, but is not reliable. I have found selecting all linked geometry(shortcut ‘L’) and recalculating all normals worked best.
Current Blender version : 3.2.0
