I'm new to Blender and I'm currently practicing by making a basic low poly character. I've encountered a weird glitch with when I apply subdivision surface to the model.

enter image description here

Used the boolean modifier to cut out some fingers for my model. However, when I activate the subdivision surface modifier, this happens. enter image description here

How do I go about fixing this?

  • 1
    $\begingroup$ avoid ngons (faces with more than 4 vertices) $\endgroup$
    – user1853
    Commented Dec 15, 2019 at 20:47

1 Answer 1


Take a look at the topology of your hand there. The entire part with the fingers is one big concave n-gon, not good. your hand The ngon is what is making the subdivision surface freak out.

To fix this you need to change the topology of the fingers so that each finger is a separate face (example below)

hand with better topology hand withmuch better topology

Sadly there is no easy to fix for that. I tried using the knife tool and cutting in some additional faces, but that just moves the problem ngon, not get rid of it.

  • $\begingroup$ Oh, I see What's a good way of doing this after the fingers have been cut out? I know I can manually create loops (CTRL+R), but I was just curious if there's any specific tools to help speed up this process. $\endgroup$ Commented Dec 15, 2019 at 21:12

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .