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 playable is connected or disconnected (which Animancer does frequently), but using this utility effectively re-captures the starting values so any subsequent resets retain the values you set.

Example:

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

    // A field to store it in.
    private PlayableOutputRefresher _OutputRefresher;

    protected virtual void OnEnable()
    {
        // Initialize on startup.
        _OutputRefresher = new(_Animancer);
    }

    public void SetWeight(float weight)
    {
        _Rig.weight = weight;
        
        // Call this after changing something in the rig that would be reset.
        _OutputRefresher.Refresh();
    }
}