Euh ???? Me too :-)

"Raytrace bounces can not be reduced to 1 if you are rendering with IDL as 2 is the minimum for IDL calculations in Poser8."

In my proposed render settings;
I put IDL to ON, so I need al least 2 Raytrace Bounces in Poser8.

Post filter can go to 2.

But the settings above give the best mix of render time versus output quality.

If you need better quality, render times become exponentionally longer.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!