# How to smooth a cone side without changing its shape?

I'm trying to smooth cone's side like I did for a cylinder using Edge Split and Subdivision Surface.

However, the cone (red one) is changing its shape at the top:

How can I prevent this?

• You could try adding an edge loop very close to the top. – Ezra Apr 14 '17 at 21:04

## 2 Answers

The easiest way is to actually use a cylinder. you can then shrink the top to a very small size in order to make it feel like a cone. Then add an edge split modifier and the SubSurf. The reason a cylinder is better is that the edge split doesn't work really well for triangles, and the cone basemesh is made of triangles. (You can't add edge loops on a cone).

On the screenshot I made the cylinder top big so you can see it's actually a cylinder but feel free to shrink the size as you want.

• – cegaton Apr 15 '17 at 2:29
• I would like to note that I used Simple Deform -> Taper modifier to change the shape of a cylinder. – Skyblade Apr 15 '17 at 10:55
• I didn't find the modifier you are talking about in the modifiers panel ------------------------------------------------------------------------------------------------- edit oh sorry actually it is in the modifier panel just didn't understant you had to pick the simple deform modifier with taper option – Pascal Nardi Apr 15 '17 at 17:41
1. I extrude the bottom ring just a tiny bit like you see on the picture.
2. Then I took the original loop above and performed edge slide all the way up to where you see the tiny loop up top.
3. Then I extruded the bottom loop again a tiny bit like the first time.
4. And finally I made the bottom loop completely sharp.