(example: an octahedron)

ModelV1 is just like ModelV2 except there is only one object, and it
includes all the triangles.

ModelV2				magic number
1 6 6 8 1			number of
				- materials
				- locations
				- points
				- triangles
				- objects
White 0 0 0 .7 .7 .7 10 .5	Materials.  Each one has:
				- name
				- self-luminant colour (r, g, b)
				- reflective colour (r, g, b)
				- specularity exponent
				- specularity multiplier
1 0 0				Locations.  Each one has:
0 1 0				- point in space (x, y, z)
0 0 1
-1 0 0
0 -1 0
0 0 -1
0 c				Points.  each one has:
1 c				- location #
2 c				- type:
3 c				  c - corner
4 c				  s x y z - surface, normal <x,y,z>
5 c
0 0 2 1				Triangles.  each one has:
0 0 1 5				- material #
0 0 4 2				- points of vertices
0 0 5 4				Vertices are in clockwise order when
0 3 1 2				seen in the frontfacing direction
0 3 5 1
0 3 2 4
0 3 4 5
8 0 1 2 3 4 5 6 7		Objects.  Each one has:
				- Count, N, of triangles
				- N triangle numbers

Objects are just arbitrary sets of triangles.  In particular, there is
no real restriction on the number of objects a triangle may belong to -
it may be from 0 to as many objects as the file contains - and no
restriction on the overlap between different objects' triangle sets.
(Some uses of the file format may impose additional restrictions.)