>>2905489Why not test them yourself if you know how they work? It could easily be quicker than waiting for a reply.
The answer is: all of that but QDEF in MMM, only the additional FOUR UV channels in MMD & Blender (as they are a 2.0 feature that is only usable in effects; painting them in PMXE, though, is not for the faint of heart unless you treat them as general modifiers for whole meshes).
>> Also, what does the external parent (外部親) bone setting do, in PMX editor? Is it ever used in real models?Pretty often (usually in sex scenes, since IK limb attachment greatly simplifies sex motion making—TBOMB200 is particularly prone to abusing it—or when a character carries any accessories; in regard to the latter, the copied bone structure method is preferable for non-high-end computers in complex MikuMikuMoving scenes due to poor optimization), and it's the biggest reason for sharing PMM and, rarely, MPJ files. I have over 300 PMMs among all of my UserData, almost one for each day of the year.
In fact, I talked about some of these things elsewhere just yesterday.
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