For designers who need to explore organic shapes quickly in Rhino, SubD is a geometry type new to Rhino 7 that can create editable, highly accurate shapes. Unlike other geometry types, SubD combines free-form accuracy while still allowing quick editing. Push and pull to explore complex, free-form shapes in realtime.
Traditionally SubD objects are mesh-based and lend themselves well to more approximate types of modeling such as character modeling and creating smooth organic forms. Rhino SubD objects are, however, high precision spline-based surfaces and introduce a level of accuracy to the process of creating complex freeform shapes.
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.
Learn more about each Rhino SubD command: