<!--
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# ARTrackedRaycast

A raycast query that ARKit repeats in succession to give you refined results over time.

```
class ARTrackedRaycast
```

## Overview

Tracked raycasting improves hit-testing techniques by repeating the query for a 3D position in succession. ARKit provides you with an updated position as it refines its understanding of world over time.

To start a tracked raycast, you call [`trackedRaycast(_:updateHandler:)`](/documentation/ARKit/ARSession/trackedRaycast(_:updateHandler:)) on your app’s current [`ARSession`](/documentation/ARKit/ARSession).

## Topics

### Stopping Tracking

[`stopTracking()`](/documentation/ARKit/ARTrackedRaycast/stopTracking())

Stops repeating the raycast query.


---

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