newmtl mat18 Kd 1.00 0.80 0.53 newmtl mat21 Kd 1.00 1.00 1.00 newmtl mat22 Kd 0.62 0.62 0.62 newmtl mat23 Kd 0.10 0.10 0.10 newmtl mat7 Kd 0.94 0.38 0.57