size 640 480
color red 1 0 0
color white 1 1 1
phong_shader red_shader red red white 50
sphere A 0 0 0 1 -
plane B 0 0 0 0 -1 0 -
plane C 0 0 0 1 0 0 -
union D B C -
difference - A D red_shader
point_light -2 7 3 white 100
point_light 3 5 -3 white 100
ambient_light white .3
enable_shadows 1
recursion_depth_limit 10
camera -1 1 4 0 0 0 0 1 0 70
