Keyframe thinning, 484 keyframe thinning – Apple Motion 5.1.1 User Manual
Page 484
Chapter 12
Keyframing
484
Note: You can also animate on the fly using the initial keyframe method. For more information 
on the initial keyframe method, see 
on page 442.
Delete keyframes recorded on the fly
If you don’t like the animation you made, you can delete the keyframes and try again. Choose 
Edit > Undo (or press Command-Z) to revert to the state before you began recording your 
animation, or manually delete the keyframes to replace.
Do one of the following:
m
Select a keyframe, then press Delete.
m
Control-click a keyframe, then choose Delete from the shortcut menu.
m
Select a keyframe, then choose Delete from the Animation menu for that parameter.
Note: To delete all keyframes for a parameter, choose Reset Parameter from the Animation menu 
in the Keyframe Editor parameter list or Inspector.
Create a handmade animation path in the Canvas
A common use for animating on the fly is to create hand-drawn animation paths. Although you 
can choose various curve types, it is very difficult to simulate semi-random movement except by 
sketching with a mouse or pen.
1
Enable Record (press A).
2
Click the Play button to begin playback.
3
Select the object to manipulate and drag it in the pattern of your choice.
The position and speed of your movement are recorded and applied to the position keyframes 
for that object.
Keyframes spaced far apart
indicate fast movement.
Keyframes close together
indicate slower movement.
You can further manipulate the path by dragging individual keyframes, or re-recording a new 
animation path for that object.
Keyframe thinning
When a parameter contains at least one keyframe, or when the Record button is on, a keyframe 
is added every time you modify a parameter at a new playhead position. If you animate while 
the project is playing, you create a keyframe at every frame. 
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