NURBs are the ultimate modeling tool for smooth, continuous surfaces which require both organic shape and extreme precision. Many primitives are supplied, providing a quick starting point for any object you need to model. You don't have to rely on our primitives, however. You can easily create your own using advanced NURBS modeling tools such as Lathe, Loft and Extrude. These primitives are relational, as well, so changing the original curve or curves used to create them will dynamically update the primitive. Once you have a primitive, you can start working it like clay using our exclusive FreeForm modeling tools.