imsize 600 200
eye 0 0 15
viewdir 0 0 -1
hfov 90
updir 0 1 0
bkgcolor 0.4 0.4 0.4

light 0 5 5 1 0.7 0.7 0.8

mtlcolor 0.6 1 0.4 1 1 1 0 0.4 0 1 
sphere -10 0 0 2

mtlcolor 0.6 1 0.4 1 1 1 0.2 0.4 0 1 
sphere -5 0 0 2

mtlcolor 0.6 1 0.4 1 1 1 0.4 0.4 0 1 
sphere 0 0 0 2

mtlcolor 0.6 1 0.4 1 1 1 0.6 0.4 0 1 
sphere 5 0 0 2

mtlcolor 0.6 1 0.4 1 1 1 0.8 0.4 0 1 
sphere 10 0 0 2