A problem that seems to recur and I'm not sure I understand what causes this yet.
2 symptoms -
1) In a mesh, a face looks darker than those around it; the angle between the odd one and the others are all similar
2) When I import the mesh into road kill there are extra edges and faces
It looks like I have 2 edges between 2 points and then 2 faces one on top of the other. Sometimes when I double click a triangle face it says there are 4 edges (quads sometimes have 5 or 6 edges).
Sometimes a similar problem is caused by 2 points at the same location but I can fix that by selecting the whole mesh and merging points.
When I have the double edge problem, it's hard to find the edge that's doubled and fix it. Is there a quick way to find / fix these edges / avoid them in the first place?
thanks A
