So I made a glass material - quite simple, I have Albedo/Rough/Metal/Normal textures applied to the various pins. I also switched the material to Translucent and the lighting mode to Surface Translucency Volume, so that I can have an opacity mask.
However, although the Opacity mask renders mostly fine in the master material, in my instances it doesn’t appear as a parameter (I have set it to the same group as the other textures). All of my glasses use different opacity maps, for fog or fade effects so I need to have different opacity maps.
Any clue as to what I’m doing wrong?