# IsViewportRectValidToRender(Rect)

> Check whether a viewport is valid.

## Definition

* **Type:** Method
* **Namespace:** [UnityEditor](/engine/6000.0/script-reference/unityeditor.md)
* **Assembly:** UnityEditor

```csharp
public static bool IsViewportRectValidToRender(Rect normalizedViewPortRect)
```

### Parameters

**** (\[Rect]\(/engine/6000.0/script-reference/unityengine/rect)): Viewport to check.

### Returns

| Type                                                          | Description                    |
| ------------------------------------------------------------- | ------------------------------ |
| [bool](https://learn.microsoft.com/dotnet/api/system.boolean) | Whether the viewport is valid. |