Flash CS4 Tutorial
How to Use Onion Skinning to View Object Location Over Multiple Frames in Flash
Onion Skinning is helpful to view multiple animation frames in a still image. It can be activated for Armature layers, Motion Tweens, Shape Tweens, Classic Tweens and frame-by-frame animation.
In this example we demonstrate turning on Onion Skinning for an object with a Motion Tween.
Open a new document and add an oval object to the stage with the Oval tool (o key).
Select the oval object and click F8 to convert it to a Movie Symbol.
Right-click the first frame of the default layer and choose Create Motion Tween from the pull-down menu.
Click the last frame of the tween and move your oval shape to a new location on the stage.
Move the timeline the midpoint of the tween.
Activate Onion Skinning by clicking the Onion Skin icon below the timeline.
Move the brackets surrounding the frame numbers to adjust your Onion Skin range.
To set your range to two or five frames on either side of the timeline marker, choose Onion 2 or Onion 5 from the Modify Onion Markers menu.
Onion Skinning can be set to outlines with the Onion Skin Outlines icon.
Click the Onion Skin or Onion Skin Outlines icon a second time to disable Onion Skinning.