type: lobe(lobe)*
smAgg
blLmbrtn rgb 0.1 0.7 0.2 end end % a green Lambertian material
end
smAgg
blLmbrtn spctrl 400 0.1 700 0.8 end end % a red material
blPhng % with a Phong highlight
spctrl 400 .6 700 .6 end
spctrl 400 30 700 30 end
end
end