5

HUD Controls
The HUD has controls for Rate, Curvature, and parameter assignment.
Related Behaviors
• Oscillate
• Ramp
Reverse
Unlike the Negate behavior, which inverts the value of the parameter to which it’s applied,
the Reverse behavior reverses the direction of any animation that affects a parameter,
whether it’s caused by behaviors or keyframes. For example, when you apply the Reverse
behavior to path animation that begins at the left and moves to the right, the animation
path won’t move, but the object instead begins at the right and moves to the left. The
Reverse behavior basically switches the beginning and ending points of animated objects.
Parameters in the Inspector
Apply To: The Apply To pop-up menu shows the parameter affected and can be used
to reassign the behavior to another parameter.
HUD Controls
The HUD control allows you to change the parameter assignment.
Related Behaviors
• Average
• Negate
Stop
The Stop behavior suspends parameter animation (created by keyframes or applied
behaviors) of an object. For example, if you assign the Stop parameter behavior to the
Position parameter of an object moving across the screen and rotating, the object ceases
to move across the screen but continues to rotate.
Each behavior’s effect on the object is frozen at the first frame of the Stop behavior in
the Timeline. Keyframes applied to that parameter cease to have any effect for the duration
of the Stop behavior in the Timeline.
If the Stop behavior is shorter than the object to which it’s applied, all keyframes and
behaviors affecting that channel immediately take effect after the last frame of the Stop
behavior. For more information on using the Stop behavior, see Using the Stop Behavior.
Parameters in the Inspector
Apply To: The Apply To pop-up menu shows the parameter being stopped and can be
used to reassign the Stop behavior to another parameter.
HUD Controls
The HUD control allows you to change the parameter assignment.
444 Chapter 9 Using Behaviors