I don't think there's any reason to separate the types of objects. Here's a more complete picture with the "case" fully equipped, and Posette in front. In P5 Firefly with Polygon Smoothing turned off for the whole image. Looks good to me; the lighting and shadowing is again slightly better than P4, and also the Amapi tessellation lines in the case are completely covered by the texture. (P4 lets those lines show through.) So I'll say that turning off Polygon Smoothing should be the default.

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