Variable Normal Maps for Breast Size and Muscle Amount

[MisoSquared]

First, I should ask that if anyone knows of a mod that does exactly what I'm trying to do, I'd love to know about.

 

I'm looking to overhaul CBBE/UNP Muscle Solution and Racial Skin Variation. Currently, both mods use set normal maps that change at evenly distributed points along the weight slider. For Racial Skin Variation this result is pretty harsh as they are using BnP's racial normal maps and they can be completely different from one another. For Muscle Solution this result is pretty smooth, but they use 11 different normal maps, two maps that are slowly blended together across 8 normals, and one map that is minorly varied across 3 normals.

 

What I want to do is essentially what Muscle Solution does with it's first 8 normals, except instead of having those 8 .dds file exist in the mod, there's only two, a starting normal map and an ending normal map. Then when the player changes their weight in game, the two maps are blended together seamlessly.

 

From what I looked at with Papyrus and its extenders' documentations, the only thing I found that could do this is an EffectShader. But having an EffectShader applied at all times to all NPCs and the player seems like it'd be too intensive. Does anyone have advice on how I could get this done?

Edited May 10, 2023 by MisoSquared