Change a Triangle's Submesh

Dear CommUnity,

I simply want to change the submesh a given triangle belongs to, in order to assign a different material.
Do you have any idea what to do?

My current approach is to add the triangle to the new submesh:
1. retrieve all triangles of the new submesh (GetTriangles)
2. add the given triangle to those triangles
3. reassign the triangles to the new submesh (SetTriangles).

It works, but unfortunately the 'old' triangle persists, so now i've got 2 triangles.
Therefore, I have to further delete the triangle from the old submesh

4. retrieve all triangles of the old submesh (GetTriangles)
5. remove the given triangle from those
6. reassign the triangles to the old submesh(SetTriangles)

But as you can see, it's seems kind of too much for such a simple task, moreover the manual triangle array deletion gets really messy as the indices shift etc.


I'm sure there's a simpler way to handle this relatively easy task!

Thanks so much

 

*shameless crying-for-help selfbump*

 

Hum, I'm now messing with the same stuff. Did you find a clever way?
Thks,
Michael