newmtl material
Ns 90.0
Ka 1.0 1.0 1.0
Kd 0.5 0.5 0.5
Ks 0.5 0.5 0.5
Ke 0.0 0.0 0.0
Ni 1.0
d 1.0
illum 2
map_Kd wall.png