COLORES Y SOMBRAS

http://docs.google.com/viewer?a=v&q=cache:EZSrel5TrbcJ:www.itescam.edu.mx/principal/sylabus/fpdb/recursos/r29384.PPT+colores+par+usar+rgb+en+opengl+ejemplo&hl=es-419&gl=mx&pid=bl&srcid=ADGEESgmgBSiTyNghI_p8oCR_8woYasNV5I60XZ2PZA2NLrY1a3j-eWbLaXCqFHYCrM2vwOVDlU9M600YVb_kBhKqAElWlVq2h9djemsIqb3jC7uzbuPe8qbNNfyy3ieEr6h2Y3Lhurc&sig=AHIEtbQcD2lJmARH3X-eYIT0C1gmsEa83g