Apple Motion 2 User Manual
Page 349
Chapter 5
Using Behaviors
349
Additional onscreen controls
The motion path you create in the Canvas can be adjusted by adding points to the
default motion path and by using the Bezier controls attached to each point to adjust
each curve. For more information about creating and adjusting Bezier curves, see
“
Editing Bezier Curve Control Points
Parameters in the Inspector
Speed: Lets you set how the object moves from the first to the last point in the motion
path. There are eight choices:
•
Constant: The object moves at a steady speed from the first to the last point on the
motion path.
•
Ease In: The object starts at a slow speed, then reaches and maintains a steady
speed through the last point on the motion path.
•
Ease Out: The object starts at a steady speed, then slows down as it gradually
decelerates to a stop at the last point of the motion path.
•
Ease Both: The object slowly accelerates from the first point on the motion path,
and then slows down as it gradually decelerates to a stop at the last point of the
motion path.
•
Ping-Pong: The object moves twice as fast along the path until it reaches the last
point on the path, then it moves backward and stops at the first point on the path.
•
Accelerate: The object moves along the path with increasing speed.
•
Decelerate: The object moves along the path with decreasing speed.
•
Custom: Custom allows you to define the movement of the object along its path by
setting keyframes for the object’s speed from 0 to 100 percent. In other words, you
determine the position of the object along the path in time.
Custom Speed: This parameter becomes available when Speed is set to Custom. You
can modify the Custom Speed velocity curve in the Keyframe Editor. You can keyframe
custom values to make an object, for example, travel forward to a specific percentage
of the path, then backward, then forward, and so on. before it reaches the end of the
animation.
Note: If you change the Speed parameter to a preset (such as Constant) after creating a
custom speed, the custom velocity channel is ignored but remains intact.
To use the Custom Speed parameter:
1
In the Inspector or Dashboard, choose Custom from the Speed pop-up menu.
The Custom Speed parameter becomes available. By default, a keyframe is set at the
first and last points of the behavior to create an animation of 0 percent to 100 percent,
where at 0 the object is at the beginning of the path, and at 100 the object is at the
end of the path. This the same velocity used with the Constant preset.
2
Enable Record (press A).
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