# IsFilteringTrigger(Collider2D)

> Checks if the collider is a trigger and should be filtered by the ContactFilter2D.useTriggers to be filtered.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.5/script-reference/unityengine.md)
* **Assembly:** UnityEngine.Physics2DModule

```csharp
public bool IsFilteringTrigger(Collider2D collider)
```

### Parameters

**** (\[Collider2D]\(/engine/6000.5/script-reference/unityengine/collider2d)): The [Collider2D](/engine/6000.5/script-reference/unityengine/collider2d.md) used to check for a trigger.

### Returns

| Type                                                          | Description                                                                    |
| ------------------------------------------------------------- | ------------------------------------------------------------------------------ |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | Returns true when `collider` is excluded by the filter and false if otherwise. |

### Remarks

Filtering is defined as including or excluding objects based upon a specific condition.  Trigger filtering checks the [Collider.isTrigger](/engine/6000.5/script-reference/unityengine/collider/istrigger.md) and includes it if triggers are being used and excludes it otherwise. IsFilteringTriggers returns true when [ContactFilter2D.useTriggers](/engine/6000.5/script-reference/unityengine/contactfilter2d/usetriggers.md) is set to false and [Collider.isTrigger](/engine/6000.5/script-reference/unityengine/collider/istrigger.md) is true. This indicates the `collider` is filtered which means it should be excluded. IsFilteringTriggers returns false if otherwise.

Additional Resources: [ContactFilter2D.useTriggers](/engine/6000.5/script-reference/unityengine/contactfilter2d/usetriggers.md).