newmtl white
Ka 0 0 0
Kd 1 1 1
Ks 0 0 0
# filename with white space.
map_Kd texture 01.png

newmtl red
Ka 0 0 0
Kd 1 0 0
Ks 0 0 0
# texture option + filename with white space.
bump -bm 2 bump 01.png

newmtl green
Ka 0 0 0
Kd 0 1 0
Ks 0 0 0

newmtl blue
Ka 0 0 0
Kd 0 0 1
Ks 0 0 0

newmtl light
Ka 20 20 20
Kd 1 1 1
Ks 0 0 0