You shouldnt plug the normal map to refraction directly. Either use that normal map for a fresnel node and use that fresnel to Lerp between 1-1.1 refraction values, or use the mask texture of those droplets as the lerp’s alpha.
use that normal map for a fresnel node
and use that fresnel to Lerp between
1-1.1 refraction values
Ahhh, thanks Jacky, much better!
It doesn’t eliminate the artifact 100% (and it probably can’t) but it does
reduce it by at least 50% which is sufficient for the ghosting not to be so noticeable.
The masking method didn’t work as well so I’ll stick with the Fresnel.