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# worldToMetersConversionScale

The scale factor to meters from the world coordinate system containing the camera.

```
var worldToMetersConversionScale: Float { get set }
```

## Discussion

Some calculations, such as the calculation of [`MDLStereoscopicCamera`](/documentation/ModelIO/MDLStereoscopicCamera) view matrices, must occur in world space. [`MDLCamera`](/documentation/ModelIO/MDLCamera) properties measured in meters or millimeters use this conversion scale to perform the calculation.

The default value is 1.0.

---

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