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I am curious how "Edge Angles" are calculated in Blender. In the picture below, the angle reads under 90 degrees even though it looks greater.

enter image description here

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  • $\begingroup$ It's the angle between the face's normal vectors I think, which looks like about 45 degrees in your picture. Do you have some king of transform applied to the mesh? $\endgroup$
    – scurest
    Nov 9 '21 at 5:05
  • $\begingroup$ @scurest: your comment sounds reasonable, but why does it show 87 degrees if you are talking about 45 degrees? :D $\endgroup$
    – Chris
    Nov 9 '21 at 6:13
  • $\begingroup$ @Chris could there be an object-level scale on this, as scurest suggests? From experiments only (I wish I was better at searching the code) the angle looks like arccos(face1normal.dot (face2normal)) $\endgroup$ Nov 9 '21 at 11:14
  • $\begingroup$ @Robin Betts: oooops - i am very sorry for my limited knowledge - I didn’t even realize that 🙈 so i obviously have still to learn a lot here….🥺…sorry scurest!!! $\endgroup$
    – Chris
    Nov 9 '21 at 11:22

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