Max's Radiosity (back when I had Version 5) used to do quite well with a single directional light, but it did take  a while for the solution to complete. There were exposure plus a heap of other controls for lights and renders options as well.

I think Poser's IDL still needs some work, especially on the artifacts of intersecting and near-neighbouring geometry. I wish we had just a little more control for exposure.
I'm starting to really feel the lack of a decent translucent material now also.

 

PoserPro2014(Sr4), Win7 x64, display units set to inches.

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