Firefly was okay for me. The above is an example, both figures rendered in Poser 5 with the Studio 1 light set from the 2nd Complex Global set in Platinum. The left image is with the P4 renderer in Poser 5. The right is with Firefly, production mode (settings below..nothing special). I forgot to set up the bump mapping for Firefly, otherwise they're pretty much identical. I did NOT use raytraced shadows. The figure is the Phoebe character for Aiko by Xena.