Photo gallery wall 2 Version: 2018 Units: Millimeters Polys: 31,952 Verts: 31,968 Render: V-Ray, Corona Formats: 3Ds Max 2018, OBJ Those who work in V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Select Blinn, Phong or Ward - what is preferable for you.