interior rendering light

[sclose15]

hello, I have used keyshot for about a year, and now im starting to do interior renderings for architecture, I'am having a lot of trouble with the interior renderings, since not a lot of light illuminates the interior and they are allways black. I have tried to insert lights on the interior but I have the same,results,  which setting would you recommend or what should I do to have better interior renderings?
Thanks, and I hope you can answer

[KeyShot]

Adding physical lights such as the ies lights or point lights is a good start. Turn on global illumination in settings.
If the image is still too dark then you can (in KeyShot 4.3) enable 'Experimental features' in preferences (user interface tab) and then in settings increase the number of indirect bounces (2-4 bounces should be a good starting point for most interiors).

[NDenekamp]

Are these Experimental features documented anywhere? What other features does this checkbox enable?

[thomasteger]

No, they are not documented. This is the only feature currently exposed.