Confused with UNP to UUNP Conversion

[AsteriaStarfall]

Maybe this is something simple, and I am just over thinking this.

 

If an armor is made for UNP, why is it such a complicated procedure to convert it to UUNP?  I've taken a few sample armors that don't have conversions yet, that were built for UNP, loaded them up in outfit studio and went to convert them.

 

Yet, when i replaced the built in body with the preset "UUNP - UNP"  The body no longer lined up with the armor, and was not conformed correctly.  If the initial base body is already UNP, shouldn't it be a very simple conversion?  Or is my simple logic not working here?

[SleepyJim]

A few things I can think of:

• As far as I'm aware, the UNP preset included in UUNP is not UNP. Like all the other presets, it's a body twisted and stretched and squeezed into a shape as close to the real thing as they could manage, but it's not exact.
• Some outfits made for a body don't fit the exact, original body's shape. They may flatten bits down or even remove parts of the body mesh altogether to get the shape the outfit creator wanted. If something like a corset is involved, for example, the waist would need to be nipped in. If a cleavage was the aim, the breasts would need to be pushed together and lifted. If you replaced the included body with the UUNP preset in such a case you would see lots of clipping.
• With many meshes, when you load them into Outfit Studio they will be misaligned. If the outfit is in front of and a little below the reference body there is a built-in button under the move shape option - called something like "old cbbe to vanilla offset" - which will fix it. If that doesn't line it up correctly, or if different branches of the mesh are in different positions and at different scales, then I'm not sure there's anything you can do with Outfit Studio to fix it. It seems to mess up on importing some meshes and I've never been able to work out why.

[AsteriaStarfall]

Thanks for that, that clears a lot up.  It sucks having to choose between a body design i want, or a lot more armor options since there is quite a bit of UNP armor not yet bodyslided.