Page 902 - Kitab3DsMax

Part VIII: Advanced Animation Techniques
Reaction controller
The Reaction controller changes its values as a reaction to another controller. This controller is different

from the Attachment controller in that the motions don’t need to be in the same direction. For example,
you can have one object rise as another object moves to the side.
Cross-Ref
Don’t confuse the Reaction controller with the reactor plug-in, which computes motion based on physical dynam-
ics. The reactor plug-in is covered in Chapter 43, “Simulating Physics-Based Motion with reactor.” n
After the Reaction controller is assigned to a track, you can define the reactions using the Reaction Manager
dialog box, shown in Figure 34.24. Selecting and right-clicking the track with this controller assigned and
selecting Properties from the pop-up menu opens this dialog box. You also can open the Reaction Manager
dialog box using the Animation ➪ Reaction Manager menu.
FIGURE 34.24
The Reaction Manager dialog box lets you set the parameters of a reaction.

The Reaction Manager is made up of two lists and a graph of function curves. The top list holds all the
object values that are involved in reactions. These are listed in a hierarchy with the master object listed
above the slave object. A single master object can control several slave parameters.

854