Chapter 3: mental ray and lights an outdoor scene. You've learned that a convenient method of creat- ing the physical environment in an outdoor scene is to use the mr Physical Sky shader that provides a convincing gradient 360° environ- ment around the scene. The Physical Sky shader adapts itself to the date and location set in the Daylight system parameters for a reddish horizon near dawn and dusk and a clearer, bluer sky at noon. In this section you'll learn more of the controls of the Daylight system and methods of creating the illusion of clouds in the sky environment. You'll begin by refreshing your memory of how to place a Daylight system in the scene. You'll see that 3ds Max presumes that if you are using the Daylight system, you probably also want to use the mr Physical Sky environmental background and the Exposure Control to compensate for bright daylight. 3.5.1 Creatingasceneusingthemr PhysicalSkyshader Figure 3.22 Setting the Disk Intensity to several in the mr Physical Sky removes the