8 6           world x and y dims
4 3 3         viewpoint (x, y, z)

9             projecting plane
8 8 8         intensity

0   0    1    normal
3   2    1    point
1   0    0    x direction
2 2           size

mike.ppm
1
2

12            plane
1 1 1         r g b ambient
6 6 6         r g b diffuse
0 0 0         r g b specular

0 0  1        normal
0 0 -5        point