8 6 world x and y dims 4 3 5 viewpoint (x, y, z) 12 plane - 0 0.0 0.0 1.0 normal 0.0 0.0 -8.0 point 0.0 0.0 0.0 ambient 3.2 3.2 3.2 diffuse 0.0 0.0 0.0 specular 15 tiled plane - 1 0.0 1.0 0.0 normal 0.0 0.0 0.0 point 0.0 0.0 0.0 ambient 4.0 4.0 3.6 diffuse 0.0 0.0 0.0 specular 1.0 grid size 0.0 0.0 0.0 ambient 2.4 4.4 4.4 diffuse 0.0 0.0 0.0 specular 10 light 4 8 11 center 1 radius 42 42 42 emissivity