o Plane
v 0.000000 -0.500000 0.500000
v 0.000000 0.500000 0.5000000
v 0.000000 -0.500000 -0.500000
v 0.000000 0.500000 -0.500000
vt 0.000000 1.000000
vt 1.000000 0.000000
vt 0.000000 0.000000
vt 1.000000 1.000000
vn 1.0000 0.0000 0.0000
s off
f 1/3/1 3/2/1 2/1/1 
f 3/2/1 4/4/1 2/1/1 
