I've been working in blender for the past 3 years and never encountered something like this. When I set the normal shading for this object to flat, it shows up like this.

enter image description here

I made sure the the faces all had the same normals. I tried shading them smoothly and adding sharp edges, that results in the strange smooth normal shading shown below.

enter image description here

Any help would be appreciated.

  • $\begingroup$ I know you said you checked, but could you double and triple check the vertex normals? idk what else it could be. $\endgroup$
    – Scalia
    Jun 22, 2017 at 21:49
  • $\begingroup$ If object is imported try removing custom imported normals, blender.stackexchange.com/questions/76513/… $\endgroup$
    – Mr Zak
    Jun 22, 2017 at 21:56
  • $\begingroup$ Its not imported and I checked the normals again, everything is fine Normals and this doesnt show up on the rest of the model Rest of Model $\endgroup$
    – Jordan T
    Jun 22, 2017 at 22:49

1 Answer 1


TL:DR press Set From Faces in the Shading tab of the Tool Shelf.

What's happened is your normals have got bent out of shape in a weird way that the usual Ctrl + N make normals consistent doesn't see as a problem.

They're all facing the right way vis-a-vis inside/outside, but they're all over the place in terms of direction. So you just tell Blender it needs to force all normals to be perpendicular to their corresponding face.

I still have no idea how this problem occurs in the first place, though. It foxed me for a good few days.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.