Vertex Normals Not Facing Correct Directions
Blender Asked by stphnl329 on November 17, 2021
I was in the process of modelling a part, but then noticed that the faces were not being shaded properly (smooth shading with auto-smooth normals). Upon closer inspection, all face normals are in the correct direction but the vertex normals do not seem to be correct. Recalculating normals does not appear to fix the problem. How do I recalculate the vertex normals?
I am unsure of the modelling steps that lead to this shading issue and have not successfully replicated the issue.
I am aware that it would not take very long to remodel the part but am curious about this issue.
One Answer
Credits to Rahul Chaudhary on https://developer.blender.org/ for the solution.
Turns out the issue is a result of the abnormal scaling I had originally placed on the object to scale a cylinder down to the approximate diameter and height (.078 in XY, 4.888 in Z). Applying the scale immediately fixed the issue.
To clarify, this would be the mesh Blender used to calculate all of the normals, after which it rescaled the mesh to look like the cylinder I had.
Before Applying Scale:
After Applying Scale:
Answered by stphnl329 on November 17, 2021
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