With LW 2019, I'm trying to figure out how to get certain buffers to respect refraction. If I have an outer shell that is refracting, with an inner object that has subsurface or occlusion or luminosity, if you look at the subsurface buffer, it shows up black. How would you composite to get the subsurface with the proper refraction? Or, say, a custom occlusion buffer with the proper refraction? The refraction buffer looks fine. But I guess you can color correct this layer? I'd rather not fake the refraction in post because of camera motions. I thought using "unseen by camera" would work, or it did in an earlier version of LW. But not so much anymore. Any easy method? Seems like we need some object/surface overrides at some point.

Thanks for any tips.