Copy topology

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  01 January 2013
Copy topology


I guess I need code for this, but I'll ask anyway.

1. I have three meshes P, Q, and T.
2. Q has the same topology as P, but has a different shape (some deformation of P).
3. T has the same shape as P, but has different topology (different number of vertices and faces), i.e. different topologies of the same surface.

I'd like to copy the topology from T to Q. Or put otherwise, I'd like to deform T, such points on the surface of T that have the same coordinates as vertices of P would go to a new position of corresponding vertices in Q, and the rest of the vertices of T would interpolate smoothly.

Maybe I could parametrize T and P by spatial position, parametrize Q the same as P (copy UV by vertex order), and then transfer vertex positions from Q to T.
  01 January 2013
"Closest point on mesh" should help you if I understand what you are trying to achieve.
You can also use a Shrink Warp approach (
  01 January 2013
It worked with the mesh transfer attributes.
  01 January 2013
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