public struct PlayableOutputRefresher : ValueType

This should be totally useless, but for some reason it seems to fix an issue with Unity's Animation Rigging package. Normally, all of the Rig's parameters get reset to their starting values any time a UnityEngine.Playables.Playable gets connected or disconnected, but using this utility effectively re-captures the starting values so any subsequent resets retain the values you set.

Example: Simply make a new Animancer.PlayableOutputRefresher on startup then call its Animancer.PlayableOutputRefresher.Refresh method after changing any parameter in the Rig or its constraints.

public class PlayableOutputRefresherExample : MonoBehaviour
{
    [SerializeField] private AnimancerComponent _Animancer;
    [SerializeField] private Rig _Rig;

    private PlayableOutputRefresher _OutputRefresher;

    protected virtual void OnEnable()
    {
        _OutputRefresher = new(_Animancer);
    }

    public void SetWeight(float weight)
    {
        _Rig.weight = weight;
        _OutputRefresher.Refresh();
    }
}