Problems with faces and subdivision surface

Hello blenderartists,

Basically, I have this very simple mesh object with only 7 vertices (see attachment).

I’ve added a subsurf modifier, but the faces are abnormally distorted (try to put in loop cuts and you’ll know what I mean).

I already have done the following:

  1. Ctl-N (made sure all vertices have same normal)
  2. Removed all doubles and overlapping faces.

I would like to know what is the basic problem here (by the way, I’ve been using Blender for 2 yrs and occasionally run across this).

and … I can remedy this problem by deleting all the faces and putting the faces back in (but if I have a model with 1000s of faces it is cumbersome).




problem with faces object.blend (1.6 MB)

You need to take more care modelling so you don’t have stray edges overlapping each other


Got it, thanks to both for turning on light bulb!