I start with the concept that I use Poser Pro2012 and my renderings are all carried out with GC (2.2) and IDL I do NOT use infinite light with IDL

I have big problems with the lighting of the interior.

Just can not figure out how to get this type of rendering with POSER.

The room is closed, then just do not understand, as if there is a global source of light and in how to make it.

I begin to think that there is a way of manipulating the materials of objects to get these renderings.

But do such a thing in the room very large and full of objects would be an endless work

Suggestions ?

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.