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Fundamentals of NURBS Modeling

NURBS are Non-Uniform Rational B-Splines. Softimage uses NURBS as the basis for curves, surfaces, and surface meshes. This chapter describes some of the basic underlying concepts behind NURBS modeling, including:

• Degree and continuity

• Points, knots, and segments

• Parameterization

• Multiplicity

• Open and closed NURBS

• Geometry approximation on NURBS

The chapters that follow describe how to model NURBS curves and surfaces in Softimage.

Autodesk Softimage v.7.5     <     >