OFF
#  cube.off
#  A cube
8 12 0
-1 -0.01 -1
1 -0.01 -1
-1 0.01 -1
1 0.01 -1
-1 -0.01 1
 1 -0.01 1
-1 0.01 1
 1 0.01 1
3   0 2 1
3   2 3 1
3   1 3 5
3   3 7 5
3   2 6 3
3   6 7 3
3   5 7 4
3   7 6 4
3   4 6 0
3   6 2 0
3   4 0 1
3   4 1 5