API support for track-level animation

I agree that the wording is a bit cryptic at this point, so let me try to explain:

First of all, what we mean by "track-level animation" is actually the animation of the properties of a PlayableAsset attached on a TrackAsset (which is most likely going to be some sort of mixer, but it doesn't have to). So, instead of animating objects in the scene, think of it as animating the Track itself.

Second, we wrote "API support" because in the 2019.1 release, there is no UI to back this feature. It is possible to experiment with the feature through the new Curves APIs on TrackAsset; but it would require some work on your part. Basically, you would have to create Curves (our curves are currently stored as an AnimationClip) on your track asset and programatically add keys to animate your PlayableAsset.

It was added to 2019.1 as a ground work for future features and for the more adventurous users who are willing to get their hands dirty. Coming in 2019.2, there will be UI to edit these animations and it will be trivial to use.

Hopefully, I've clarified things a bit.




Here's the parts of the API that should be the most relevant to users:

TrackAsset.curves
https://docs.unity3d.com/Packages/c...t.html#UnityEngine_Timeline_TrackAsset_curves

TrackAsset.hasCurves
https://docs.unity3d.com/Packages/c...tml#UnityEngine_Timeline_TrackAsset_hasCurves

TrackAsset.CreateCurves()
https://docs.unity3d.com/Packages/c...meline_TrackAsset_CreateCurves_System_String_

 

Yes, that's correct. You would have to move the animation code to the mixer in that case, but it would definitely be possible.