I hear about Luxrender here and like to try it out.
Is not being a day at beach let me tell you!
First gotcha is vertices in different order, I was think to cut/paste obj and add some of Lex specific lines, but no.

Transparency mapping is unique.  Depending on what layer of shader using, you can have either white or black for see through.

To make camera position from Poser is difficult, because poser don't have target point, just angles and XYZ.  Maybe they have such a point because some cameras have different axis to rotate, but I can't find it.  So have to fabricate a "point of interest" for their "LookAt" statement.

Maybe there is way to translate poser shader to Lux, but I have not such talent. Actually would be waste of time because Lux has much power to tap and should not limit yourself to only what poser can do.

For own purpose, best way is making into scene file with barebones reference to textures and build own shaders in Lux.

Hopefully, this picture link work and I show sample for two hours render on ancient PC.

 

img638.imageshack.us/img638/479/luxpushpa.jpg