mtllib regr_3429812.mtl v 0.0498759 0.964456 0.0949991 v 0.042335 0.96222 0.0980526 v 0.0418548 0.961535 0.096869 v 0.049267 0.963762 0.0939126 usemtl Trim g rectangle f 4 3 2 1 g triangle1 f 4 3 2 g triangle2 f 4 2 1
