Apple Motion 4 - Manual (Page 536)

What Is Keyframing?
Keyframing is the process of assigning a specific parameter value to an object at a specific
point in time. For example, you might want a clip to be scaled to fill the screen exactly
five seconds into your project. When you set more than one keyframe, Motion generates
the in-between frames, resulting in a smooth change of that parameter over time. This
is called interpolation. For example, if you want a title to change from green to blue over
time, you would set two keyframes at two different points in time. The first one would
define the text’s color as green, and the second keyframe would set the color to blue.
Motion automatically makes the frames between those points change smoothly from
green to blue.
Motion lets you keyframe parameters such as color values, position, rotation, opacity, and
almost every other parameter in the application.
Animation in Motion
There are several different places in Motion where you can create and edit keyframes and
the values between them, which are represented by animation curves. For example, you
can animate basic properties such as scale, rotation, and screen position by simply
manipulating the object directly in the Canvas when the Record button is enabled.
Record button
536 Chapter 10 Keyframes and Curves