Page 606 - Kitab3DsMax

Part IV: Materials, Cameras, and Lighting Basics

4. Click the Auto Key button (or press the N key), and move the Time slider to frame 100.
5. In the Control Parameters rollout, change the Time value to an evening hour. Then click the Auto
Key button (N) again to disable animation mode.
Note
You can tell when the sun comes up and goes down by looking at the Altitude value for each hour. A negative
Altitude value indicates that the sun is below the horizon. n
Figure 20.13 shows a snapshot of this quick day. The upper-left image shows the animation at frame 20,
the upper-right image shows it at frame 40, the lower-left image shows it at frame 60, and the final image
shows it at frame 80.

FIGURE 20.13
Several frames of an animation showing a tree scene from sunrise to sunset

Using Volume Lights

When light shines through fog, smoke, or dust, the beam of the light becomes visible. The effect is known
as a Volume Light. To add a Volume Light to a scene, choose Rendering ➪ Environment (or press the 8 key)
to open the Environment dialog box. Then click the Add button in the Atmosphere rollout to open the Add
Atmospheric Effect dialog box, and select Volume Light. The parameters for the volume light are presented
in the Volume Light Parameters rollout.

558

6/30/10 4:26 PM
28_617779-ch20.indd 558 6/30/10 4:26 PM
28_617779-ch20.indd 558