8 6 world x and y dims 0 0 3 viewpoint (x, y, z) 14 plane 0 0 0 r g b ambient 25 15 15 r g b diffuse 0 0 0 r g b specular 0 0 1 normal 0 0 -8 point 13 sphere 0 0 0 r g b ambient 0 1 1 r g b diffuse 0 0 0 r g b specular 0 0 -3 center 2 radius 10 light 4 4 4 r g b ambient 0 0 0 center