I wanted to share a very very simple room setup (in real world scale) for those who want to try some indoor lighting in TG.
My main goal is to show, that there is absolutely no need for additional lighting unless you have real additional lightsources in your scene like lamps or candles or whatever.
My lighting here is almost default. I increased the environment light (Strength on surfaces) to 1.5, and used increased GI settings (Detail/quality: 4/6). You can increase the environment light's multiplier even more (2 looks still good), if it's too dark for you, but you don't need stuff like second suns or things like that, if you want realistic lighting.
And GISD is on. I have the impression that many users don't use this. Especially the occlusion weight is crucial for scenes like this one in my opinion. Only DOF would be problematic when GISD is on, but that's a known issue.
