1.  Start with file.dem

2.  dem2node file.dem tolerance^2 (meters)

    - dem2node file.dem 160000

3.  triangle -q file

4.  fixnode file

5.  tri2obj file.1

6.  strip file.1.obj

7.  cp bands.d file-new.obj

8.  fixobj file-new

9.  cp file-new.1.obj .../Scenery/...