A TrackHandler is responsible for evaluating a specific type of timeline track. A timeline track can be an animation track, audio track, signal track, control track etc and is controlled by a PlayableDirector.
Optional
The AnimationMixer, should be shared with the animator if an animator is bound
invoked when PlayableDirectory playmode state changes (paused, playing, stopped)
A TrackHandler is responsible for evaluating a specific type of timeline track.
A timeline track can be an animation track, audio track, signal track, control track etc and is controlled by a PlayableDirector.