This applet uses a simple parser similar to the many that we have seen to this point. I will spare you the details, but here is an example input file:

eye 0 3 10 lookat 0 -1 0 up 0 1 0 fov 30 background 0.2 0.8 0.9 light 1 1 1 ambient light 1 1 1 directional -1 -2 -1 light 0.5 0.5 0.5 point -1 2 -1 surface 0.7 0.2 0.8 0.5 0.4 0.2 10.0 0.0 0.0 1.0 sphere -2 -3 -2 1.5 sphere 0 -3 -2 1.5 sphere 2 -3 -2 1.5 sphere -1 -3 -1 1.5 sphere 1 -3 -1 1.5 sphere -2 -3 0 1.5 sphere 0 -3 0 1.5 sphere 2 -3 0 1.5 sphere -1 -3 1 1.5 sphere 1 -3 1 1.5 sphere -2 -3 2 1.5 sphere 0 -3 2 1.5 sphere 2 -3 2 1.5

surface 0.7 0.2 0.2 0.5 0.4 0.2 3.0 0.0 0.0 1.0 sphere -1 -3 -2 1.5 sphere 1 -3 -2 1.5 sphere -2 -3 -1 1.5 sphere 0 -3 -1 1.5 sphere 2 -3 -1 1.5 sphere -1 -3 0 1.5 sphere 1 -3 0 1.5 sphere -2 -3 1 1.5 sphere 0 -3 1 1.5 sphere 2 -3 1 1.5 sphere -1 -3 2 1.5 sphere 1 -3 2 1.5 surface 0.4 0.4 0.4 0.1 0.1 0.6 100.0 0.8 0.0 1.0 sphere 0 0 0 1