Are you aware, that we can do unstructured meshing with a surface-to-volume (S2V) algorithm?
No? Then you are not alone. The Volume-2-Surface approach is typically associated with the mesh generation in HEXPRESS™/Hybrid or Fidelity Hexpress. However, S2V has been in use for several years. This lifehack provides all the important information to start with your first S2V mesh setup.