---
title: cameraScaleReference
framework: arkit
role: symbol
role_heading: Instance Property
path: arkit/environmentprobeanchor/camerascalereference
---

# cameraScaleReference

The camera scale reference of this anchor.

## Declaration

```swift
var cameraScaleReference: Float { get }
```

## Discussion

Discussion Returns the camera scale reference of a pixel with rgb value [1,1,1] in the environment texture. In order to have a consistent brightness between texture updates, the cameraScaleReference allows you to translate the local brightness from the current environment texture to the absolute brightness range from the camera.

## See Also

### Getting anchor information

- [environmentTexture](arkit/environmentprobeanchor/environmenttexture.md)
- [originFromAnchorTransform](arkit/environmentprobeanchor/originfromanchortransform.md)