eye 0 0 0
imsize 512 256
viewdir 0 0 -1
updir 0 1 0
vfov 45
bkgcolor 0.1 0.1 0.1 1
light -2 1 0 1 0.5
mtlcolor 0 1 1 1 1 1 0.2 0.6 0.2 20 1 1

v -1 1 -4
v -1 -1 -4
v 1 -1 -4
v 1 1 -4

f 1 2 3