Example Model

# Blender3D v244 OBJ File: <memory>
# www.blender3d.org
mtllib 2 cubes.mtl
o Cube_Cube.001
v -10.113772 -3.084297 -6.807512
v -10.918790 -3.644285 -5.064423
v -9.284081 -3.006697 -4.104627
v -8.479064 -2.446710 -5.847717
v -9.289351 -4.895346 -7.008585
v -10.094367 -5.455332 -5.265495
v -8.459658 -4.817744 -4.305700
v -7.654641 -4.257757 -6.048790
v -8.507682 -2.832320 -2.491895
v -9.312699 -3.392307 -0.748806
v -7.677991 -2.754719 0.210990
v -6.872974 -2.194732 -1.532100
v -7.683259 -4.643368 -2.692969
v -8.488276 -5.203355 -0.949878
v -6.853567 -4.565767 0.009917
v -6.048551 -4.005780 -1.733173
usemtl (null)
usemtl (null)
s 1
f 1 2 3 4
f 5 8 7 6
f 1 5 6 2
f 2 6 7 3
f 3 7 8 4
f 5 1 4 8
f 11 12 9 10
f 13 16 15 14
f 9 13 14 10
f 10 14 15 11
f 11 15 16 12
f 12 16 13 9