newmtl initialShadingGroup illum 4 Kd 0.50 0.50 0.50 Ka 0.00 0.00 0.00 Tf 1.00 1.00 1.00 Ni 1.00 newmtl lambert4SG illum 4 Kd 0.00 0.00 0.00 Ka 0.00 0.00 0.00 Tf 1.00 1.00 1.00 map_Kd onepointfive_texture.png Ni 1.00 Ks 0.00 0.00 0.00 map_Ks onepointfive_spec.png