Meshing method to use
The following methods are available:

-Marching cubes: Constructs a mesh from the scene
using the marching cubes method (SIGGRAPH, 1987).

-Dual contouring: Constructs a mesh from the scene
using the dual contouring method (SIGGRAPH, 2002).

-Mesh ribbons: Produces a mesh by only producing
vertical sides from the slice contours. While
completely open, the mesh can be processed success-
fully by most external slicers. 

-Mesh slices: Produces a watertight mesh from the
slices. The mesh is assembled from the slice contours.
This process is somewhat slow and not guaranteed 
to succeed, so prefer ribbons whenever possible.