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# ARSCNDebugOptionShowWorldOrigin

Display a coordinate axis visualization indicating the position and orientation of the AR world coordinate system.

```
extern const SCNDebugOptions ARSCNDebugOptionShowWorldOrigin;
```

## Discussion

This visualization is available to all session configurations and session [`worldAlignment`](/documentation/ARKit/ARConfiguration/worldAlignment-swift.property) options, but is most useful with a [`ARWorldTrackingConfiguration`](/documentation/ARKit/ARWorldTrackingConfiguration) session. For example, if you start running a session when this option is enabled, then take a step backward, the real-world position tracked by the AR world coordinate system should become visible on your device screen.

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