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# url

The URL identifying the file from which the scene source was created.

```
var url: URL? { get }
```

## Discussion

The value of this property is `nil` if the scene source was not created using the [`sceneSourceWithURL:options:`](/documentation/SceneKit/SCNSceneSource/sceneSourceWithURL:options:) or [`init(url:options:)`](/documentation/SceneKit/SCNSceneSource/init(url:options:)-rw0y) method.

---

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