Quote - Yes, the diffuse is an IBL. (But no image attached)

Never occured to me that I should enable shadows for an IBL.

I mean, it's omnidirectional. There ARE no shadows.

But yes, combined with IDL there is a difference wether the IBL "fill" has shadows enabled or not.

No, you don't want to enable shadows for an IBL when using IDL. The IDL occlusion should be correct. There shouldn't really be any need for additional "fill" anymore, but it is a matter of taste I guess. The only way I know to add extra ambience with IDL enabled is via materials, which will then technically be glowing.

 

 

Quote - Want realism?
Render with IDL, in BB's shere, and use Gamma corection.

For an outside scene that would be with only ONE single infinite light at reduced setting. There is only one sun, and she has no image on her surface. = Fact.

Just to remind - you sometimes have to deal with the missing specular of the Environment Sphere lighting, particularly when the sun (or moon) is back lighting the subject. Remember that the object lighting will contribute only diffuse light. This means adding specular only lights or blurred fresnel reflections to materials. Just saying.

 

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

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