RHINO is 3D modeling software produced by McNeel. It is widely used in design disciplines and is distinguished by its ability to handle complex curves and curved surfaces based on the NURBS mechanism.
www.rhino3d.com for information, links, examples, and other resources.
www.rhino3d.com/tutorials for tutorials.
v5.rhino3d.com for a discussion forum.
www.food4rhino.com for third-party plugins to extend Rhino’s functionality.