Quote - In Poser, the source of HDRI lighting would be provided through IBL, or Image Based Lighting.  This will establish your overall global illumination.... 

Thanks for the quick response. It all seems to make sense. Hopefully all our output will be as good as match as your test render :-)  I'll ask mm to post a few of our test renders for comment once the modeling of the sets in trueSpace are complete. Thanks for the help.