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# needsPeriodicRefresh

A Boolean value that indicates whether the scene requires redrawing while your app progresses through the content.

```
var needsPeriodicRefresh: Bool { get }
```

## Discussion

If your app isn’t progressing through the content, a single render at the current time is enough.

Choose a refresh rate appropriate for your app. For example, an app may choose rates that match rates of associated video frames or other timing appropriate for the client.

---

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