The archive contains a 3ds max 2017 scene for Corona and V-Ray + obj files. Renders for the preview were made in Corona Render 9. On the Corona Legacy Mtl model. Corona Render version 1.5 or higher is required. Materials were converted to V-Ray using V-Ray scene converter. "For Corona Render: it is recommended to install a version not lower than 1.5, since the glossiness of materials is configured taking into account PBR. 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."