imsize 512 512
eye 0 0 0
viewdir 0 0 -1
hfov 45
updir 0 1 0
bkgcolor 0 0 0 1
light -3.5 -3.5 0 1 1

mtlcolor 0 1 0 1 1 1 0.2 0.8 0 1 1 1
sphere -0.75 -0.75 -5 0.75

mtlcolor 0 1 0 1 1 1 0.2 0.8 0 1 1 1
sphere 1.75 1.75 -10 2