Timeline Controls

The timeline panel at the bottom of the viewer controls playback of all motions and cameras open in the scene. Each open motion or camera appears on its own track.

Play, Pause, and Scrub

• Click the play/pause button in the upper-left corner of the timeline to start or pause playback of all tracks at once.
• Click or drag the time ruler or a track's colored range bar to scrub the playhead. The playhead immediately jumps to the corresponding frame.

Adjust the End Frame

A frame counter next to the play/pause button shows the current frame / total frames (for example, 12 / 120). Click the total frame count to edit it directly. Enter a new value and press Enter to change the length of the entire timeline. This sets the end frame of the whole timeline, not of an individual clip; each motion or camera's own length is still determined by its original animation data.

Zoom the Timeline

Use the + / − buttons at the top of the timeline to zoom the time ruler in or out, similar to zooming a timeline in video editing software. Zooming is centered on the frame in the middle of the currently visible timeline, and the time ruler continues extending to the right as you scroll near its right edge.

Resize the Timeline Panel

Drag the handle at the top edge of the timeline panel up or down to adjust its height.

Clear Tracks

There are two ways to remove content from the timeline:

• Clear All Tracks — Click the × button next to play/pause to remove everything: all motions and cameras currently loaded in the viewer.
• Remove a Single Track — Each track has its own × button to remove only that motion or camera without affecting the other tracks.

Keyframes

An add-keyframe feature is available above the timeline frames. With an added render camera selected, you can freely scrub through frames and click to add or delete keyframes to create camera movement. For details, see Manual Camera Movement Control.