Hey guys cgtrader says that for a PBR workflow I should upload at least: BaseColor Normal Metalness and Roughness. And in case of a glass material I should add an opacity map. This I don't get. I usually make my glasses with refraction maps in Vray with ior and other options, but why doesn't cgtrader ask for a material like this? Isn't the opacity channel not enough for glass' shenanigans? Thanks a bunch
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Unity apparently can import Physical Materials from FBX with all textures, see https://docs.unity3d.com/6000.0/Documentation/Manual/FBXImporter-Materials.html#:~:text=Unity%20provides%20default,from%20FBX%20files