For presentation. Rendered imaged of physical model. Helps depict the finer aspects of the model for example in the image straight below, we can see that the far blind when down becomes  a projection screen from the projector which is located in the storage space behind in the bedhead. We can also see the horse show lights in action as it shows the indirect light created on the interior wall.

looking into indirect lighting. I especially like the one on the left and how it can be flipped into a straight wall.