Class XRImageTrackingSubsystem.IProvider
Methods to implement by the implementing provider.
Namespace: UnityEngine.XR.ARSubsystems
Syntax
protected class IProvider : objectProperties
imageLibrary
Set the XRReferenceImageLibrary. Setting this to null implies the subsystem should stop detecting or tracking images.
Declaration
public virtual XRReferenceImageLibrary imageLibrary { set; }Property Value
| Type | Description |
|---|---|
| XRReferenceImageLibrary |
maxNumberOfMovingImages
The maximum number of moving images to track in realtime.
Declaration
public virtual int maxNumberOfMovingImages { set; }Property Value
| Type | Description |
|---|---|
| Int32 |
Methods
Destroy()
Called when the subsystem is destroyed.
Declaration
public virtual void Destroy()GetChanges(XRTrackedImage, Allocator)
Get the changes (added, updated, removed) to the tracked images since the last call to this method.
Declaration
public virtual TrackableChanges<XRTrackedImage> GetChanges(XRTrackedImage defaultTrackedImage, Allocator allocator)Parameters
| Type | Name | Description |
|---|---|---|
| XRTrackedImage | defaultTrackedImage | An XRTrackedImage populated with default values. The implementation should first fill arrays of added, updated, and removed with copies of this before copying in its own values. This guards against addtional fields added to the XRTrackedImage in the future. |
| Allocator | allocator | The allocator to use for the returned data. |
Returns
| Type | Description |
|---|---|
| TrackableChanges<XRTrackedImage> | The set of changes (added, updated, removed) tracked images since the last call to this method. |