As you can see in this montage, the IBL is contributing most of the total illumination IMO, it is better to get > 50% of the illumination from non-IBL sources, and use IBL for the filler. That way you can use the nice depth-mapped and ray-traced shadows. Even if I get HDRshop working, won't I still need AO to darken the tight spots? Not sure what you mean by this. Either use material based AO, or thighen the bias us on the depth mapped shadows (to 0.01). Did you read the link in my previous msg - gives you the values. Even in your nice pictures where you demo Occlusion Master, I can see some of the AO dirt. I doubt it's AO dirt (since there is no light-based AO) - it's probably from the texturemap - that's GI Jill :-)

Creator of PoserPhysics
Creator of OctaneRender for Poser
Blog
Facebook