[Octave-bug-tracker] [bug #65431] crash after hgload certain data

[Markus Mützel]

Follow-up Comment #41, bug #65431 (group octave):


> I'm mostly concerned that setting cdata changes vertices. That shouldn't
happen.

That needs to happen because shared vertices might need to be separated:
The (per-vertex) color assigned in "facevertexcdata" applies to all faces
neighboring any given vertex.
On the other hand, the (per-vertex) color in "cdata" can be different for each
face (also for shared vertices).
So, when a user sets "cdata" manually, shared vertices must be duplicated so
that no face shares vertices with another face.



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