It's me annoying topology question man!

Dominic Sewell

Hi guys,

so ive never been the best at figuring out topology flow i kind of hate it to the core

anyhow, i have this issue which is cuasing a pinch when smoothed and would love any suggestions on exactly how to cut in this shape







Cheers everyone!

Apocrs1980

Just my opinion, but If it's not going to animate, I would say you'd be okay with triangles.

Dominic Sewell

@Apocrs1980 its not going to animate its just that when i smooth it which i need to do i get this gross pinch if i cut triangles in

jacopoS

Unfortunately, as far as I know, there's no perfect solution for this kind of situation due to how the CatmullClark smoothing algorithm works.

I suggest you start with a new cylinder with at least double the subdivisions of the current one (maybe even four times so).
I see you already subdivided some areas in half: this is going to give you uneven results.
Starting over with a higher resolution around the axis will give you a less apparent pinch by default plus it's always better to have an even resolution around the axis. Try to avoid subdividing it later.

jose.fuentes

dont fear triangles, in the end everything is triangulated in engine.  Also if that part is something that won't animate then you have nothing to worry about 

Epitaph

Yeah, when doing sub-d work on curved/rounded elements like this cylinder, it's always best to start with a LOT of edges. This will help support that sort of detail without pinching/smoothing artifacts

right now you've got 16 sided cylinder, try it with 48!

brooceylad

Check if it's non manifold geometry, in mesh cleanup. That will cause pinching, also that looks like an ngon whilst the surrounding geo is quads.