France - this additional material zones appear in Poser after you apply MAT pose which applies texture to some materials the figure you use doesn't have. For example, applying Aiko's skin MAT pose to V3 creates three dummy materials - SkinKnee, SkinThigh, SkinShin (V3 has one zone - SkinLeg - instead). Using V3 eye MATs on Furrette also creates a lot of dummy useless materials, because her eye material zones are named differently than V3's. Those are just listed in Materials dialog/Material Room and don't do anything to you. It's a kind of bug I think, I've encountered it P4/PP and P5, and it apparently appears also in newer Poser versions. That's why after using V3 MAT on PosetteV3 you have extra materials like PubicHair - PosetteV3 doesn't have such material zone, but it is in .pz2, so Poser adds it to the list - even though it's just useless phantom thing.

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Outdated gallery over at DeviantArt

Fics at FanFiction.net and Archive of Our Own (AO3)