Camera.onPreCull

# [Camera](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera.html).onPreCull

public static [Camera.CameraCallback](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera.CameraCallback.html) **onPreCull** ;

## 描述

任意摄像机开始剔除前触发的事件。

另请参阅：[CameraCallback](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera.CameraCallback.html)、[onPreRender](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera-onPreRender.html)、[onPostRender](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera-onPostRender.html)。

```
using UnityEngine;
public class ExampleClass : MonoBehaviour
{
    // callback to be called before any culling
    public void MyPreCull(Camera cam)
    {
        Debug.Log("PreCull: " + cam.gameObject.name);
    }

public void OnEnable()
    {
        // register the callback when enabling object
        Camera.onPreCull += MyPreCull;
    }

public void OnDisable()
    {
        // remove the callback when disabling object
        Camera.onPreCull -= MyPreCull;
    }
}
```