Chapter 3: Lighting in mental ray attained. The first image is only default lighting. The second image has the materials with a day- light system inserted. The third image has the ma- terials overridden with a matte material. It's easier to see the effect of the lighting on the scene with the matte material. Although the scene lighting with a default Daylight System is not bad, there is consi- derable room for improvement. Once you understand the parameters in mr Sun, mr Sky, and mr Physical Sky, you will be able to produce much more interesting lighting for your exterior scenes. Scene with default lighting 3.9 mr Sun Parameters In the Daylight System parameters, you can adjust several parameters that will allow you to create different effects for the sun. The parameters