Adobe Photoshop CS4 - Manual (Page 557)

550 USING PHOTOSHOP CS4
Video and animation
Last updated 1/10/2010
Add a blank video layer
1 For the active document, make sure the Animation panel is displayed in timeline mode.
2 Choose Layer > Video Layers > New Blank Video Layer.
Specify when a layer appears in a video or animation (Photoshop Extended)
You can use various methods to specify when a layer appears in a video or animation. For example, you can trim (hide)
frames at the beginning or end of a layer. This changes the layer’s start and end points in a video or animation. (The
first frame to appear is called the In point, and the last frame is called the Out point.) You can also drag the entire layer
duration bar to a different portion of the timeline.
1 In the Animation panel, select the layer.
2 Do any of the following:
• To specify the In and Out points of a layer, drag the beginning and end of the layer duration bar.
• Drag the layer duration bar to the section of the timeline where you want the layer to appear.
Note: For best results, drag the layer duration bar after the bar has been trimmed.
Layers (In timeline mode) with the layer duration bar selected to drag
• Move the current-time indicator to the frame you want as the new In or Out point, and from the Animation panel
menu, choose Trim Layer Start To Current Time or Trim Layer End To Current Time.
This shortens the layer duration by hiding the frames between the current-time indicator and either the start or the
end of the layer. (Re-extending the ends of the layer duration bar reveals the hidden frames.)
• Use keyframes to change the layer’s opacity at specific times or frames.
Note: To delete footage in one or more layers, use the Lift Work Area command. To delete a specific duration from all
video or animated layers, use the Extract Work Area command.
Trim or move a video layer (Photoshop Extended)
To hide frames at the start or end of a video or animation layer, trim the layer. To start or end video at a different time
point, move the video layer.
If you move video layers, changes become permanent when you save the file. If you trim video, however, you can
restore it by re-extending the ends of the layer duration bar.
1 In the Animation or Layers panel, select the layer you want to edit.
2 Move the current-time indicator to the frame (or time) you want as the new In point or Out point.
3 On the Animation panel menu, choose one of the following options:
Move Layer In Point To Current Time Permanently moves the start of the layer to the current-time indicator.
Move Layer End Point To Current Time Permanently moves the end of the layer to the current-time indicator.