# FixedUpdate.LegacyFixedAnimationUpdate

> A native engine system that the native player loop updates.

## Definition

* **Type:** Struct
* **Namespace:** [UnityEngine.PlayerLoop](/engine/6000.6/script-reference/unityengine/playerloop.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public struct FixedUpdate.LegacyFixedAnimationUpdate
```