Step by step intro to SubD in Rhino 7
For designers who need to explore organic shapes quickly, SubD is a new geometry type that can create editable, highly accurate shapes. Unlike other geometry types, SubD combines free-form accuracy while still allowing quick editing. Accurate, organic modeling just got easier. Push and pull to explore complex, free-form shapes in real time.
SubD objects are highly accurate and can be converted directly to manufacturable solids. You can also convert scan or mesh data into SubD objects, then optionally to NURBS.