v 1.0 0.0 -1.0
v 0.0 -1.0 -1.0
v -1.0 0.0 -1.0
v 0.0 1.0 -1.0
v 1.0 -1.0 0.0
v -1.0 -1.0 0.0
v 1.0 1.0 0.0
v 1.0 0.0 1.0
v 0.0 -1.0 1.0
f 1 2 3 4 
f 2 1 5 
f 3 2 6 
f 4 7 1 
f 8 5 1 7 
f 2 5 9 6 
f 9 5 8 

s 4 0 1 2 3 
s 3 1 0 4 
s 3 2 1 5 
s 3 3 6 0 
s 4 7 4 0 6 
s 4 1 4 8 5 
s 3 8 4 7 

