meshing_surface_subdivision_loop filter reorders/merges vertices

[Sentient07]

Hi,

I want to subdivide multiple meshes while preserving correspondence. I was using the meshing_surface_subdivision_loop, however, it does not preserve correspondence. I observe that starting with the same vertices and faces, this algorithm gives different numbers of vertices and faces upon applying the filter depending on the geometry of the mesh. It occurs to me that some post-processing is not very obvious (from the docs). Perhaps the vertices are being merged? Could this be avoided while using this filter?

Thanks,