The "Marching Cubes"[1] algorithm got patented ages ago and the patent was enforced. Some clever people had to come up with a similar solution called "Marching

The "Marching Cubes"[1] algorithm got patented ages ago and the patent was enforced. Some clever people had to come up with a similar solution called "Marching Tetrahedrons" to work around the patent. [1]http://en.wikipedia.org/wiki/Marching_cubes http://en.wikipedia.org/wiki/Marching_cubes