I've been getting these shading inconsistencies with sub surf mod regardless of the subdivisions value, and "Smooth Vertex" deforms my shape undesirably. how do I go about fixing this? Shading Artifacts

This is how it looks in Edit mode: Edit mode

  • $\begingroup$ Seems like a problem with your topology. Can you add more pictures in EDIT mode? or even better, a .blend file? $\endgroup$
    – Cos Dim
    Commented Feb 13, 2017 at 19:57
  • $\begingroup$ @CosDim I edited the question $\endgroup$ Commented Feb 13, 2017 at 20:09
  • $\begingroup$ Most likely either wrong normals orientation or custom split normals. $\endgroup$
    – Mr Zak
    Commented Feb 13, 2017 at 20:18
  • $\begingroup$ @MrZak I checked the normals they're good - I'm going to check your second $\endgroup$ Commented Feb 13, 2017 at 20:48

1 Answer 1


Seems like your topology is the culprit. Subdivison modifier tends to not work well with triangles like the ones you have. Try using only quads (squares). Other than that, I think your normals are flipped. Try this: Hit "T" to bring up the left hand panel on the viewport. Then go into EDIT mode and find the "Shading/UVs" tab. There scroll down and click "Flip Direction". Hope this helps.

  • $\begingroup$ The topology was the problem indeed - using quads only seemed to fix the problem quite nicely $\endgroup$ Commented Feb 13, 2017 at 22:05

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