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Geometry in Rhino is based on the NURBS mathematical model. Like AutoCAD, Rhino has always featured a command line where users can type commands. From its inception, Rhino was designed to be easy to learn, easy to use, low-cost and extensible. The software evolved from a 1992 program called Sculptura. Primarily a surface modeler, but with many related features, Rhino is developed by Robert McNeel & Associates. The program can create, edit, analyze, document, render, animate and translate Non-Uniform Rational B-Spline (NURBS) curves, surfaces, solids, point clouds and polygon meshes. Since its initial release at SIGGRAPH in 1998, Rhinoceros-or, more commonly, Rhino or Rhino3D-has won a very loyal following.
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