imsize 1024 256
eye 0 0 0
viewdir 0 0 -1
hfov 45
updir 0 1 0
bkgcolor 0 0 0 1
light 1 1 0 0 1

mtlcolor 0 1 0 1 1 1 0.1 0.2 0.8 15 1 1
sphere -6 0 -20 1

mtlcolor 0 1 0 1 1 1 0.1 0.2 0.8 15 1 1
sphere -3 0 -20 1

mtlcolor 0 1 0 1 1 1 0.1 0.2 0.8 15 1 1
sphere 0 0 -20 1

mtlcolor 0 1 0 1 1 1 0.1 0.2 0.8 15 1 1
sphere 3 0 -20 1

mtlcolor 0 1 0 1 1 1 0.1 0.2 0.8 15 1 1
sphere 6 0 -20 1