v 0 0 0
v 0 0 8
v 0 8 0
v 0 8 8
v 8 0 0
v 8 0 8
v 8 8 0
v 8 8 8
F 1 4 3 0xd75f5fff
F 1 2 4 0xd75f5fff

F 4 2 8 0x87af5fff
F 2 6 8 0x87af5fff

F 5 7 8 0xffaf5fff
F 6 5 8 0xffaf5fff

F 1 3 7 0x87afd7ff
F 1 7 5 0x87afd7ff

F 1 6 2 0x69b2b2ff
F 1 5 6 0x69b2b2ff

F 4 8 3 0x8787afff
F 3 8 7 0x8787afff