Well , as title says .... What do i need to do to get white interior walls and homogenous illumination in my interior spaces? (Just like in the examples below taken from the indigo's gallery

I've tried with the camera settings, light layers ,wall openings and Hdri lightings, but not luck. If the light in the exterior is strong my interior gets darker and get some overxposed (exterior) areas. I know that this effct is correct due indigo is physically accurate , so... it is possible (physically speaking)to achieve those resuls without any tricks,like adding lights and so on ?
I used to be a Vray user (but i got tired of flat and unrealistic images) and i remember there was an option to increase the light rebounds...with this option it was possible to have homogenous lighting, does indigo has an option like that?
Thanks in advance
