newmtl blue Ka 0.6 0.6 0.6 Kd 0.6 0.6 0.6 Ks 0.1 0.1 0.1 d 1.0 Ns 150.0 illum 2 map_Kd blue.jpg newmtl blue-grid Ka 0.6 0.6 0.6 Kd 0.6 0.6 0.6 Ks 0.1 0.1 0.1 d 1.0 Ns 150.0 illum 2 map_Kd blue-grid.png