# DefaultPreviewGUI(Rect, GUIStyle)

> Default handling of preview area for materials.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor](/engine/6000.6/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public void DefaultPreviewGUI(Rect r, GUIStyle background)
```

### Parameters

**** (\[Rect]\(/engine/6000.6/script-reference/unityengine/rect)): **** (\[GUIStyle]\(/engine/6000.6/script-reference/unityengine/guistyle)):