If your version of VRAY is higher than 3.1, then at the end of the description add the text: “Whoever works 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"

If the CORONA version is higher than 1.4: “For Corona render, it is recommended to install the version no lower than 1.5, since the glossiness of the materials is adjusted taking into account PBR.” Dual sections VRay + Corona. If your main engine is Corona, we recommend not using scripts for conversion and creating all VRay materials manually. Carefully check each material so that there are no Corona Bitmaps left in the Vray materials or card slots