An enum that describes how Unity refreshes a Light Probe Proxy Volume in the Player.
另请参阅：Light Probe Proxy Volume。
| Automatic | Automatically updates the Light Probe Proxy Volume when its volume or configuration changes or when light probe data changes. |
| EveryFrame | Updates the Light Probe Proxy Volume every frame. |
| ViaScripting | Never updates the Light Probe Proxy Volume automatically. |