---
title: SCNSceneSourceAssetUnitKey
framework: scenekit
role: symbol
role_heading: Global Variable
path: scenekit/scnscenesourceassetunitkey
---

# SCNSceneSourceAssetUnitKey

## Declaration

```swift
let SCNSceneSourceAssetUnitKey: String
```

## Discussion

Discussion The unit used in the file. The corresponding value is a dictionary populated with keys documented in the Unit Dictionary Keys group.

## See Also

### Constants

- [SCNSceneSourceAssetContributorsKey](scenekit/scnscenesourceassetcontributorskey.md)
- [SCNSceneSourceAssetCreatedDateKey](scenekit/scnscenesourceassetcreateddatekey.md)
- [SCNSceneSourceAssetModifiedDateKey](scenekit/scnscenesourceassetmodifieddatekey.md)
- [SCNSceneSourceAssetUpAxisKey](scenekit/scnscenesourceassetupaxiskey.md)