mtllib ./wood.obj.mtl

v -0.300000 -0.300000 0.000000
v 0.300000 -0.300000 0.000000
v -0.300000 0.300000 0.000000
v 0.300000 0.300000 0.000000
vn 0.000000 0.000000 1.000000
vn 0.000000 0.000000 1.000000
vn 0.000000 0.000000 1.000000
vn 0.000000 0.000000 1.000000
vt 0.000000 0.000000
vt 1.000000 0.000000
vt 0.000000 1.000000
vt 1.000000 1.000000

usemtl material_0
f 1/1/1 2/2/2 4/4/4
f 1/1/1 4/4/4 3/3/3