A modeling library for OpenSceneGraph, creating kinds of parametric curves and surfaces, e.g. the NU

osgModeling is a open source modeling library for OpenSceneGraph(OSG). Its purpose is to help generate kinds of parametric curves and surfaces, like extrusions, revolutions, lofts, Bezier and NURBS. Another important feature of the library is to help implement multiple polygon technologies. The subdivision of low polygons is supported at present. It also helps construct the binary space partitioning (BSP) trees and do boolean operations (Intersection, Union and Difference) based on the BSP. New Release osgModeling 0.1.1 is available on November 17th, 2008. Changes includes: New polygon mesh generator to convert any geometries to vertices-edges-faces list. New subdivision classes to support Loop and Sqrt(3) methods to subdivide polygon meshes. New normal generator to generate normal arrays using different mean weights (MWE, MWA, MWSELR, MWAAT, MWELR, MWRELR). New osgdb_osgmodeling plugin for read/write osgM