Model of a flat soffit truss. Name: Soft theater farm with lighting equipment Type: model Format: 3Ds Max 2015 Export: OBJ, MAT Render: Corona (11) Vray(5) Polys: 452279 Verts: 232236 Units: Centimeters Dimension: 386.71 x 56.28 x 232.25 Those who work in a 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 - whichever is preferable for you. For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of the materials is adjusted taking into account PBR.