newmtl default Ka 1.00 1.00 1.00 Kd 1.00 1.00 1.00 Ks 0.00 0.00 0.00 Ns 20.00 illum 2 newmtl 1566250915144_0 Ka 1.00 1.00 1.00 Kd 1.00 1.00 1.00 Ks 0.00 0.00 0.00 Ns 20.00 illum 2 map_Ka 1566250915144_0.png map_Kd 1566250915144_0.png