IIRC, marching cubes also has a patent on it so many applications generating meshes from isosurfaces use slight derivations of marching cubes that generally sp

IIRC, marching cubes also has a patent on it so many applications generating meshes from isosurfaces use slight derivations of marching cubes that generally speaking, accomplish the same goal. I don't know if this is still true (patented part). Edit: the patent has expired and is in the public domain. Alternatives were used for many years though.