# UnregisterMaterial(BatchMaterialID)

> Unregister the Material ID associated with BatchRendererGroup. Each deregistration of a specific Material reduces its number of owners by 1.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine.Rendering](/engine/6000.7/script-reference/unityengine/rendering.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public void UnregisterMaterial(BatchMaterialID material)
```

### Parameters

**** (\[BatchMaterialID]\(/engine/6000.7/script-reference/unityengine/rendering/batchmaterialid)): `BatchRendererGroup` Material ID.