mtllib grid.0.mtl o grid.0.obj v -2.500000 0.500000 -0.000000 v -2.000000 0.500000 -0.000000 v -1.500000 0.500000 -0.000000 v -2.500000 0.000000 0.000000 v -2.000000 0.000000 0.000000 v -1.500000 0.000000 0.000000 v -2.500000 -0.500000 0.000000 v -2.000000 -0.500000 0.000000 v -1.500000 -0.500000 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 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 vn 0.000000 0.000000 1.000000 vt 0.004950 0.500000 vt 0.500000 0.500000 vt 0.500000 0.995049 vt 0.004950 0.995049 vt 0.004950 0.004950 vt 0.500000 0.004950 vt 0.995049 0.500000 vt 0.995049 0.995049 vt 0.995049 0.004950 g grid usemtl Default f 4/1/4 5/2/5 2/3/2 1/4/1 f 7/5/7 8/6/8 5/2/5 4/1/4 f 5/2/5 6/7/6 3/8/3 2/3/2 f 8/6/8 9/9/9 6/7/6 5/2/5