Attached Link: http://www.renderosity.com/mod/gallery/index.php?image_id=1053847

I did this a few years ago (SEE LINK) in poser 4 just by seeing how each option affected rendering, then applying things like HDR probes (as JPG, HDR info lost obviously on Poser 4)  to the reflection of the cornea with transparency at 99%, but reflectivity up to the max.

It's always trial & error unless you're the guy who's made the application.