The retarded thing about the RDNA GI Studio (no offense to Colm, who has a big brain and all) is that it is shown to be an un-enclosed environment.  It's nearly a waste of time to render with IDL/GI if the environment is not fully enclosed with geometry, whether a "room" (my preference) or an environment dome like BB prefers.  If you don't enclose the environment, light will hit one surface, bounce, and maybe hit a second surface, maybe not - then will vanish off into the unverse.  If you're rendering outer space where your characters are standing on a platform with infinite vacuum around them, maybe that's a good setup - otherwise no.

The promo pic where the light is coming from the right and the dark sides of the spheres are all black - that is primo example of light not taking advantage of GI.  Surfaces should just NEVER be that black unless their diffuse color is totally black, they are not getting any light at all.

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