Working with Tracks
 
 
 

Tracks are the background on which you add and sequence clips in the animation mixer. There are three main types of tracks in the mixer:

You can sequence one clip after another on the same track or different tracks. However, clips cannot overlap on one track; to overlap clips in time, they must be on separate tracks. See Working with Clips for more information.

TipTo find mixer tracks in the explorer, see Finding Mixer Node Elements in the Explorer.

Selecting Tracks

When you select a track, all appropriate commands are applied to it, such as inserting a track or accessing track controls. A selected track is indicated by a white line around the track's control icon area.

  • Click the track's icon to the left of each track.

  • Ctrl+click the track's icon to toggle-select multiple tracks.

Adding Tracks

Tracks in the mixer are always grouped by type in this order from top to bottom: animation, shape, audio. When you add a track to the mixer, this grouping is maintained.

If you have nothing selected and you add a track to the mixer, it is added to the bottom of its type's "stack." For example, if there are shape and audio tracks in the mixer and you add a shape track, it's added below the other shape tracks, but above the audio tracks.

If you select a track, you can insert a track of the same type directly above it. For example, if you select an animation track, you can insert an animation track directly above it; however, if you add a shape track, it's still added to the bottom of the shape track stack.

To add a track to the mixer, do one of the following:

  • Choose the appropriate command from the mixer's Track menu:

    • Add Animation Track adds a track that can hold only action clips.

    • Add Shape Track adds a track that can hold only shape clips.

    • Add Audio Track adds a track that can hold only audio clips.

    • Add FileCache Track adds a track that can hold only cache clips.

    TipTo add many tracks of the same type quickly, choose a Track command once, then middle-click the Track menu name to repeat the last command.

    or

  • Press Shift+A, Shift+S, or Shift+U to add Animation, Shape, or Audio tracks, respectively.

    or

  • Right-click an existing track and choose Add Track (or press the I key). Then select the appropriate type of track from the menu.

To insert a track of the same type

Either of these methods inserts a track of the same type above the current or selected track:

  • Right-click a track and choose Insert type Track.

    or

  • Select a track and use any of the methods listed above.

Displaying Tracks and Their Information

You can toggle the display of tracks and their information in the mixer in any of the following ways:

  • Choosing the appropriate Tracks command from the View menu on the animation mixer command bar to determine which type of tracks to display (Animation, Shape, and Audio).

  • Choosing View Preferences from the animation mixer command bar to set a preference for the display options.

    In the Animation Mixer Preferences dialog box, click the Tracks tab and select which type of tracks to display (Animation, Shape, and Audio).

    On the Tracks page, you can also select which track display options to view (Track Name, Transitions, and Track Tooltips).

  • Right-clicking a track and choosing Display Options. This opens the Animation Mixer Preferences dialog box with the Tracks page visible.

Muting and Soloing Tracks for Playback

As you work in the mixer, you can play the tracks in your scene as usual using the buttons in the Playback panel or by scrubbing the timeline. You can also use the mute and solo options to concentrate on specific tracks:

  • Activate a track's Mute option (click the m button) to stop it from playing back with the rest of the scene. It turns light orange when active. When you do this, any clips on that track appear in a light gray to show that they're inactive.

  • Activate a track's Solo option (click the s button) to play back only that track. It turns green when active. You can solo more than one track so that only the tracks you specify play back.

    You can also set these options by right-clicking on a track and choosing Track Properties or by selecting the track and choosing Tracks Track Properties from the mixer's command bar.

    Note
    • If you move a clip from a muted track, the clip will stay muted. To work around this, mute and then unmute the new track on which that clip is located.

    • In addition, you can mute individual clips. To mute a clip, right-click it and choose Clip Properties, then turn Active off in the property editor that appears.

Removing Tracks

Removing a track deletes it together with any clips that it may contain. This removes the tracks from the mixer, but it does not delete the animation, shapes, or audio sources. As well, you can delete all empty tracks in the mixer.

To delete tracks

Do either of the following:

  • Right-click the track you want to delete and choose Delete Track. This deletes only the track on which you right-click: any other selected tracks are not deleted.

  • Select one or more tracks by clicking on their icons (Shift+click for multiple tracks), then choose Tracks Remove Track from the mixer's command bar or press Delete.

To delete empty tracks

  • Choose Tracks Delete Unused from the mixer's command bar.

    This removes all tracks of any type (animation, shape, or audio) that have no clips on them, including empty tracks within compound clips (action or shape).

  • Choose Tracks Clear All to clear all tracks from the animation mixer display.