There are 5 models in the scene, each with its own unique name. Chair size 720 * 700 * 780mm 3dsMax 2015 + V-ray + .fbx Polygons 463555 Peaks 471815 Who works 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. Choose Blinn, Phong or Ward - which is preferable for you.