Class HandTracking

This enables the use of hand-tracking data in OpenXR through the XRHandSubsystem. It enables XR_EXT_hand_tracking in the underlying runtime. To retrieve hand data, use the XRHandSubsystem retrieved from subsystem.

Inheritance

Object

HandTracking

Namespace: UnityEngine.XR.Hands.OpenXR

Syntax

public class HandTracking : OpenXRFeature

Remarks

For this extension to be available, you must install the XR Hands package.

Fields

extensionString

The OpenXR Extension string. OpenXR uses this to check if this extension is available or enabled. See hand interaction extension documentation for more information on this OpenXR extension.

Declaration

public const string extensionString = "XR_EXT_hand_tracking"

Field Value

Type	Description
String

featureId

The feature ID string. This is used to give the feature a well known ID for reference.

Declaration

public const string featureId = "com.unity.openxr.feature.input.handtracking"

Field Value

Type	Description
String

Properties

subsystem

The XRHandSubsystem that retrieves hand data from its provider. Will only be valid when this feature is enabled and running. To subscribe to updates, use handsUpdated.

Declaration

public static XRHandSubsystem subsystem { get; }

Property Value

Type	Description
XRHandSubsystem

Methods

HookGetInstanceProcAddr(IntPtr)

Declaration

protected override IntPtr HookGetInstanceProcAddr(IntPtr func)

Parameters

Type	Name	Description
IntPtr	func

Returns

Type	Description
IntPtr

OnAppSpaceChange(UInt64)

See .

Declaration

protected override void OnAppSpaceChange(ulong xrSpace)

Parameters

Type	Name	Description
UInt64	xrSpace

OnInstanceCreate(UInt64)

See .

Declaration

protected override bool OnInstanceCreate(ulong xrInstance)

Parameters

Type	Name	Description
UInt64	xrInstance

Returns

Type	Description
Boolean

OnSessionCreate(UInt64)

Called after xrCreateSession.

Declaration

protected override void OnSessionCreate(ulong xrSession)

Parameters

Type	Name	Description
UInt64	xrSession

Remarks

Creates an XRHandSubsystem with the OpenXR provider.

OnSubsystemDestroy()

Called before the OpenXR loader destroys its subsystems.

Declaration

protected override void OnSubsystemDestroy()

Remarks

Destroys the XRHandSubsystem.

OnSubsystemStart()

Called after the OpenXR loader has started its subsystems.

Declaration

protected override void OnSubsystemStart()

Remarks

Starts the XRHandSubsystem and automatic updating for it. To subscribe to updates, use handsUpdated.

OnSubsystemStop()

Called before the OpenXR loader stops its subsystems.

Declaration

protected override void OnSubsystemStop()

Remarks

Stops the XRHandSubsystem and automatic updating for it.

OnSystemChange(UInt64)

See .

Declaration

protected override void OnSystemChange(ulong xrSystem)

Parameters

Type	Name	Description
UInt64	xrSystem