Misc

Some theory:

• https://www.cs.purdue.edu/homes/cmh/distribution/books/geo.html
• https://www.cin.ufpe.br/~mdlm/files/Farin-5a_edicao.pdf

NURBS modeler with BSD license

• http://ayam.sourceforge.net/

More NURBS

• http://libnurbs.sourceforge.net/

Other interesting projects

• https://www.geometrictools.com/index.html