<!--
{
  "availability" : [
    "visionOS: 2.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "ARKit",
  "identifier" : "/documentation/ARKit/ObjectTrackingProvider/TrackingConfiguration-swift.struct",
  "metadataVersion" : "0.1.0",
  "role" : "Structure",
  "symbol" : {
    "kind" : "Structure",
    "modules" : [
      "ARKit"
    ],
    "preciseIdentifier" : "s:5ARKit22ObjectTrackingProviderC0C13ConfigurationV"
  },
  "title" : "ObjectTrackingProvider.TrackingConfiguration"
}
-->

# ObjectTrackingProvider.TrackingConfiguration

Parameters for changing object-tracking behavior.

```
struct TrackingConfiguration
```

## Overview

Your app needs to include the <doc://com.apple.documentation/documentation/BundleResources/Entitlements/com.apple.developer.arkit.object-tracking-parameter-adjustment.allow> entitlement to modify the tracking configuration; otherwise, it has no effect.

## Topics

### Creating a tracking configuration

[`init()`](/documentation/ARKit/ObjectTrackingProvider/TrackingConfiguration-swift.struct/init())

Creates a tracking configuration.

### Inspecting a tracking configuration

[`var detectionRate: Float`](/documentation/ARKit/ObjectTrackingProvider/TrackingConfiguration-swift.struct/detectionRate)

The frequency at which object detection runs, in Hz.

[`var maximumInstancesPerReferenceObject: Int`](/documentation/ARKit/ObjectTrackingProvider/TrackingConfiguration-swift.struct/maximumInstancesPerReferenceObject)

The maximum number of instances of each reference object type to allow tracking at once.

[`var maximumTrackableInstances: Int`](/documentation/ARKit/ObjectTrackingProvider/TrackingConfiguration-swift.struct/maximumTrackableInstances)

The total number of object instances that you can track at the same time.

[`var movingObjectTrackingRate: Float`](/documentation/ARKit/ObjectTrackingProvider/TrackingConfiguration-swift.struct/movingObjectTrackingRate)

The frequency at which object tracking runs for moving objects, in Hz.

[`var stationaryObjectTrackingRate: Float`](/documentation/ARKit/ObjectTrackingProvider/TrackingConfiguration-swift.struct/stationaryObjectTrackingRate)

The frequency at which object tracking runs for stationary objects, in Hz.

### Instance Properties

[`var description: String`](/documentation/ARKit/ObjectTrackingProvider/TrackingConfiguration-swift.struct/description)

A textual representation of this tracking configuration.

## Relationships

### Conforms To

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)