Table of Contents
Advertisement
Last updated 12/21/2009
Chapter 14: Markers and metadata
Markers
Layer markers and composition markers
Use composition markers and layer markers to store comments and other metadata and mark important times in a
composition or layer. Composition markers appear in the time ruler for the composition, whereas layer markers each
appear on the duration bar of a specific layer. Both kinds of markers can hold the same information.
Markers can refer to a single point in time or to a duration.
Composition markers in After Effects correspond to sequence markers in Adobe Premiere Pro. Layer markers in After
Effects correspond to clip markers in Adobe Premiere Pro.
When you render a composition that contains markers, the markers can be converted to web links, chapter links
(chapter points), cue points, or Clip Notes comments, depending on the output format and values that you set in the
marker dialog box. Markers can also be exported as XMP metadata. (See
The default comment for a composition marker is a number, whereas the default comment for a layer marker is
nothing.
A marker that contains link or cue point data has a small dot in its icon.
A
B
C
A. composition marker with duration of 1 second B. composition marker with cue-point data C. layer marker with duration of 2 seconds
D. layer marker with cue-point data
Markers make it easier to align layers or the current-time indicator with specific points in time: When you drag a
keyframe, the current-time indicator, or a layer duration bar in the Timeline panel, hold down Shift to snap these
items to markers.
You can add markers during a RAM preview or audio-only preview, which allows you to place markers at significant
points in the audio track of a layer.
• To view or edit a data for a marker, double-click the marker, or right-click (Windows) or Control-click (Mac OS)
the marker and choose Settings.
• To move a marker to a different time, drag the marker or double-click it and enter a time in the dialog box.
• To automatically create layer markers for a layer based on the temporal metadata in the layer's source file, select the
Create Layer Markers From Footage XMP Metadata preference in the Media & Disk Cache preferences category.
This preference is on by default.
• To resynchronize layer markers on a precomposition layer to corresponding composition markers for the source
composition, right-click (Windows) or Control-click (Mac OS) a layer marker and choose Update Markers From
Source. This command also removes any markers that you have added to the layer.
Note: If the layer uses a file (rather than a composition) as its source, this command restores the layer markers to those
representing the temporal XMP metadata for the source file.
D
"XMP
metadata" on page 625.)
619
Advertisement
Table of Contents
