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# rendersContinuously

A Boolean value that determines whether the view always renders at its preferred frame rate or only when its visible content changes.

```
var rendersContinuously: Bool { get set }
```

## Discussion

When this value is <doc://com.apple.documentation/documentation/Swift/false> (the default), the view redraws its contents only when something in its scene graph change or animates. Use this option to maximize energy efficiency.

If you change this value to <doc://com.apple.documentation/documentation/Swift/true>, the view redraws itself continually, at the rate specified by the [`preferredFramesPerSecond`](/documentation/SceneKit/SCNView/preferredFramesPerSecond) property, regardless of whether content is changing or animating.

---

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