Keyframe basics – Apple Motion 3 User Manual

Page 96

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96

Chapter 1

Getting to Know Motion

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If the Timing pane is already visible, click the Keyframe Editor tab at the top of the
pane.

Keyframe Editor Parameter List

The left side of the Keyframe Editor contains a list of parameters. You can choose which
parameters are displayed in the list and set keyframing functions in the Animation
menu. You can also create custom sets of parameters. This allows you to focus on
certain parameters at a time. For more information on creating and viewing parameter
sets, see “

Custom Parameter Sets

” on page 533.

Show Pop-Up Menu
Use the Show pop-up menu to select what is displayed in the Keyframe Editor. The
Show options include:

All: This option displays all parameters for the currently selected object, whether or not
the parameters are animated.

Animated: This option displays only the animated parameters and curves for the
currently selected object. This includes animation curves created by keyframing as well
as behaviors. This is the default setting. With the Keyframe Editor active, you can also
press the U key to choose Animated from the Show pop-up menu.

Keyframe Basics

You animate an object by creating at least two keyframes for a parameter, such as
Opacity, at different points in time in a project. A keyframe is a point in time that
records any change in the value of a parameter. For example, to create an animation
in which an object is completely transparent at frame 1 and becomes completely
opaque at frame 120, you create two keyframes: an Opacity keyframe set to a value
of 0% at frame 1, and an Opacity keyframe set to a value of 100% at frame 120. The
image fades in from 0% to 100% over the 120 frames. The smooth, fade-in transition
between the two keyframed values is called interpolation.

All keyframes for a specific parameter (such as Opacity or Rotation) are positioned on
a line over time. Different values for the keyframes change the shape of that line and
create what is called an animation curve. The type of curve from keyframe to
keyframe (interpolation) can be changed to create different animation effects. For
example, keyframes set to Bezier create smooth transitions in values. Keyframes set to
Linear create straight lines between the keyframes, for sharper changes in value. You
can modify keyframes and their animation curves in the Keyframe Editor, located in
the Timing pane. For more information, see “

Keyframes and Curves

” on page 503.

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