Hi Brian, I using this one

Fast Parallel Construction of Smooth Surfaces from Meshes with Tri/Quad/Pent Facets
A. Myles and T. Ni and J. Peters
https://www.cise.ufl.edu/research/SurfLab/papers/08poly.pdf

It can use any solid object with flat faces, which can be created in MoI, or imported using my importobj script.

P.S. Also you can read this document: Smooth Surfaces from 4-sided Facets
T. L. Ni, Y. Yeo, A. Myles, V. Goel and J. Peters.