In this tutorial, you'll learn how to light a room realistically in Cinema 4D.

First, you'll open a room scene from the Content Browser. Then, you'll add a Physical Sky object to simulate natural light coming in through the room's windows.

Next, you'll get the windows to act as GI Portals (openings in walls through which light enters the room).

You'll switch on Global Illumination in the Render Settings so that the light will bounce and spread around the room realistically. And you'll switch on Physical Render for more accurate results.

Finally, you'll adjust a few of the Global Ilumination settings to ramp up the realism and prevent areas from harsh overexposure.