camera cam1 { pixeldim 640 480 worlddim 8 6 viewpoint 4 3 8 } material white { diffuse 2 2 2 ambient 1 1 1 } material brown { diffuse 3 3 0 ambient 1 1 1 } light center { location 4 3 0 emissivity 10 10 10 } fplane left { material white normal 6.93 0 4 point 0 0 0 xdir 1 0 0 dimensions 8 6 } fplane right { material brown normal -6.93 0 4 point 4 0 -6.93 xdir 1 0 0 dimensions 8 6 }