Meet September! In the archive you will find: -MAX2012 (Vray_3.6- BRDF Microfaset GTR (GGX)) -OBJ Who works in the V-Ray version lower than SP1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than SP1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - which is preferable for you.