# Horizontal opaque panels; OBJ import is Y-up.
v -2 6 -4
v -4.9 6 -4
v -4.9 6 -6
v -2 6 -6
f 1 3 2
f 1 4 3
v -5.1 6 -4
v -8 6 -4
v -8 6 -6
v -5.1 6 -6
f 5 7 6
f 5 8 7