NURBS (Non-Uniform Rational B-Splines) are a popular and versatile representation of curves and surfaces. GroIMP contains full NURBS support, e.g., techniques to construct NURBS surfaces out of a set of NURBS curves, including surface skinning, surfaces of revolution, extrusion and sweep surfaces. A detailed description of these techniques will follow in later versions of this manual. For the time being, you can experiment with the surface settings in the Attribute Editor. Of course, you have to create a surface via Objects/NURBS/Surface at first.

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