8 6 world x and y dims 4 3 3 viewpoint (x, y, z) 12 plane - 0 4.0 0.0 1.0 normal 4.0 0.0 -16.0 point 0.0 0.0 0.0 ambient 3.2 3.2 0.2 diffuse 0.0 0.0 0.0 specular 12 plane - 0 -4.0 0.0 1.0 normal 4.0 0.0 -16.0 point 0.0 0.0 0.0 ambient 0.2 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 1.0 0.0 0.0 grid direction 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 4 center 1 radius 12 12 12 emissivity