Chapter 3: mental ray and lights 3.4.1.1 Exercise:SkyPortal 1. Open the file called Ch03_sky_portal_01.max from the CD-ROM and save it to your hard drive with the name Ch03_sky_portal_02.max. The scene is a playroom with some toys on the floor and a large window in the left wall. A Daylight system is aimed at a steep angle to shine in the middle of the floor, and final gather has been disabled. Render the Camera01 viewport (see Figure 3.15). You are rendering only direct light of the sun on the floor and of the sky on the wall.