g shadow
v -3.42288709 0.740641773 -0.00109988207
v -0.286628097 0.740641773 -0.00109988207
v -0.286628097 1.71172726 -0.00109988207
v -3.42288709 1.71172726 -0.00109988207
vt 0.990100026 0.25035733
vt 0.00999867916 0.25035733
vt 0.00999867916 0.749046624
vt 0.990100026 0.749046624
vn -0 0 -1
vn -0 0 -1
vn -0 0 -1
vn -0 0 -1
g shadow_0
f 3/3/3 2/2/2 1/1/1
f 4/4/4 3/3/3 1/1/1