No 3D model was imported. The hull is a fair surface described by code - stations, waterlines and buttocks lofted exactly the way a boat-builder lofts them on the floor. It assembles, breathes apart into its systems, and comes back together.
I built superyachts for Sunseeker, Princess and Oyster before I built websites. Same discipline, different material: the decks lift away, the hull opens into its frames, and everything lands back exactly where it should.