Class ARSessionFeature

Enables AR Foundation session support via OpenXR for Meta Quest devices.

Inheritance
Object
OpenXRFeature
ARSessionFeature
Inherited Members
UnityEngine.XR.OpenXR.Features.OpenXRFeature.GetValidationChecks(System.Collections.Generic.List<UnityEngine.XR.OpenXR.Features.OpenXRFeature.ValidationRule>, UnityEditor.BuildTargetGroup)
Namespace: UnityEngine.XR.OpenXR.Features.Meta
Syntax
public class ARSessionFeature : OpenXRFeature

Fields

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.arfoundation-meta-session"
Field Value
Type Description
String

Methods

HookGetInstanceProcAddr(IntPtr)

Called to hook xrGetInstanceProcAddr. Returning a different function pointer allows intercepting any OpenXR method.

Declaration
protected override IntPtr HookGetInstanceProcAddr(IntPtr func)
Parameters
Type Name Description
IntPtr func

xrGetInstanceProcAddr native function pointer
Returns
Type Description
IntPtr

Function pointer that Unity will use to look up OpenXR native functions.
Overrides

OnAppSpaceChange(UInt64)

Called when the reference xrSpace for the app changes.

Declaration
protected override void OnAppSpaceChange(ulong xrSpace)
Parameters
Type Name Description
UInt64 xrSpace

Handle of the xrSpace
Overrides

OnInstanceCreate(UInt64)

Called after xrCreateInstance.

Declaration
protected override bool OnInstanceCreate(ulong xrInstance)
Parameters
Type Name Description
UInt64 xrInstance

Handle of the xrInstance
Returns
Type Description
Boolean
Overrides

OnInstanceDestroy(UInt64)

Called before xrDestroyInstance

Declaration
protected override void OnInstanceDestroy(ulong xrInstance)
Parameters
Type Name Description
UInt64 xrInstance

Handle of the xrInstance
Overrides

OnSessionCreate(UInt64)

Called after xrCreateSession.

Declaration
protected override void OnSessionCreate(ulong xrSession)
Parameters
Type Name Description
UInt64 xrSession

Handle of the xrSession
Overrides

OnSessionDestroy(UInt64)

Called before xrDestroySession.

Declaration
protected override void OnSessionDestroy(ulong xrSession)
Parameters
Type Name Description
UInt64 xrSession

Handle of the xrSession
Overrides

OnSessionStateChange(Int32, Int32)

Called when the OpenXR loader receives the XR_TYPE_EVENT_DATA_SESSION_STATE_CHANGED event from the runtime signaling that the XrSessionState has changed.

Declaration
protected override void OnSessionStateChange(int oldState, int newState)
Parameters
Type Name Description
Int32 oldState

Previous state
Int32 newState

New state
Overrides

OnSubsystemCreate()

Instantiates Meta OpenXR Session subsystem instance, but does not start it. (Start/Stop is typically handled by AR Foundation managers.)

Declaration
protected override void OnSubsystemCreate()
Overrides

OnSubsystemDestroy()

Destroys the session subsystem.

Declaration
protected override void OnSubsystemDestroy()
Overrides

OnSystemChange(UInt64)

Called after xrGetSystem.

Declaration
protected override void OnSystemChange(ulong xrSystem)
Parameters
Type Name Description
UInt64 xrSystem

Handle of the xrSystemId
Overrides