This modeling technique is the most accurate there is. This kind of modeling uses adaptive mesh, which enables you to optimize the number of faces forming the object’s surface. You create your three-dimensional surface by manipulating curves. With this technique, you work with curves when modeling rather than by linking polygons. This mathematical model offers great flexibility and precision during the whole 3D modeling process. NURBS is a mathematical model that renders curves and surfaces in computer graphics. Rhino 3D is a free form surface modeler that uses the modeling by curves technique (NURBS or Non-Uniform Rational Basis Spline).
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