v -0.49999999792743177 0.8660254049810364 0 
v 0 0 1 
v 1.0 0.0 0 
v -0.5000000041451365 -0.866025401391243 0
                                         
f 2 3 1 
f 2 1 4 
f 2 4 3 
f 3 4 1
 
s 3 1 2 0 
s 3 1 0 3 
s 3 1 3 2 
s 3 2 3 0