//Create and return the track mixer playable
Playable CreateClipsMixer(PlayableGraph graph)
{
var clipActions = clips.OfType <PlayAnimatorClip>().ToList();
ports = new Dictionary <PlayAnimatorClip, int>();
clipsMixer = AnimationMixerPlayable.Create(graph, clipActions.Count, true);
for (var i = 0; i < clipActions.Count; i++)
{
var playAnimClip = clipActions[i];
var clipPlayable = AnimationClipPlayable.Create(graph, playAnimClip.animationClip);
clipPlayable.SetApplyFootIK(applyFootIK && isMasterTrack);
graph.Connect(clipPlayable, 0, clipsMixer, i);
clipsMixer.SetInputWeight(i, 0f);
ports[playAnimClip] = i;
}
//need pause clips.
clipsMixer.Pause();
return(clipsMixer);
}