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 seatSG
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 seat_diffuse.png
bump seat_nrml.png -bm 1
Ni 1.00
Ks 0.00 0.00 0.00
map_Ks seat_metallic.png
Ns -1.00