added new versions of Terrain.toMesh() to use only a region (instead of the entire) terrain, that allows slicing large terrains into limited size tiles for 3D printing etc.
added new versions of Terrain.toMesh() to use only a region (instead of the entire) terrain, that allows slicing large terrains into limited size tiles for 3D printing etc.

--HG--
branch : toxiclibs

rekii/toxiclibs,rekii/toxiclibs,postspectacular/toxiclibs,postspectacular/toxiclibs,ruby-processing/toxiclibs