PoseRay has a version that exports to Kerkythea.  Kerkythea is a great free renderer that has among its modes, the unbiased, Maxwell style MLT algorithm. I can't comment on the quality because I don't have a lifetime to create a single render. Even for hard shiny things, I can't see that the quality of MLT is worth the glacial speed. I really don't know how Poser figures are going to fare in a MLT environment but I'd like to see some examples if anyone is aware of any.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken