8 6 world x and y dims 0 0 3 viewpoint (x, y, z) 14 plane 5 5 2 0 0 0 r g b diffuse 0 0 0 r g b specular 1 0 1 normal -4 -1 0 point 14 plane 5 2 5 0 0 0 0 0 0 -1 0 1 normal 4 -1 0 point 14 3 3 3 r g b ambient 0 0 0 r g b diffuse 0 0 0 r g b specular 0 1 0 normal 0 -4 0 point 13 sphere 2 5 2 0 0 0 r g b diffuse 0 0 0 r g b specular 0 1 -3 1.5 13 sphere 2 5 2 ambient 0 0 0 r g b diffuse 0 0 0 3 1 -3 1.5 14 plane 3 3 3 r g b ambient 0 0 0 r g b diffuse 0 0 0 r g b specular 0 1 0 normal 0 4 0 point