The type of used light is important in order to reach a realistic visualization. In a first step we used the Octane Day Light to obtain a natural light as shown in the following image:

It is to note that space inside such a place is not much and it is difficult to have a good overview of the room. A good solution is to increment the camera near clip depth.

This tool hides from the rendered view each element that (in the view of the camera) is nearer than the used near clip depth. The light reacts as the hidden object would still be there. The two following Images show a view inside the tomb with the west facade hidden.

Note that the octane day light can be adjusted to different day times by changing either the time directly in Cinema4D or by changing the temperature and the intensity of the light used (previous Image). In a next step the projection of the camera can be switched from central projection to parallel projection. This change can be helpful in combination with an optimal clip depth tool to visualize an entire wall in one go (this would be probably impossible inside of the tomb as there is too less available space). The following Image Shows the previous visualization with a parallel projection (note that the second line of pillars is not visible anymore).

Another type of light is the octane IES light, which appears like a four-sided surface. The size, the orientation and the light settings of this surface can be adjusted. The two following Images show the use of this type of light in combination with an external day light coming from the door. Two different combinations of light temperature and intensity are used. A tripod was created behind the light surface to render a realistic situation.