Richard,

PoserPlay (https://play.posersoftware.com) has been our testing ground for precisely the type of integration you describe.
It has a feature called ClothFX that by default make clothing drape convincingly, but you can also do lighting correction, etc with a prompt.
It's reasonable to expect this type of integration into Poser desktop over time.  There's also a forum here for PoserPlay.

-Tim