Unity Plugin 6.5.0

• Tracking contains stable content including Core, Hands and the Interaction Engine.
• Tracking Preview contains experimental/pre-release content.

Headline features of 6.5.0 include:

Added

• Public toggle for interpolation on LeapServiceProviders
• Hands prefabs added to GameObject/Ultraleap/Hands create menu
• Action-based XRI implementation with Example scene in Preview package
• Added const S_TO_US as replacement for incorrectly named S_TO_NS in LeapServiceProvider
• Check box in Hand Binder under fine tuning options to enable or disable moving the elbow based on forearm scale

Changed

• "Hands.Provider" static function now searches for subjectively the best LeapProvider available in the scene. Will use PostProcessProvider first rather than LeapServiceProvider
• Removed the OVRProvider from the Preview Package. This is now achievable via the OpenXR Provider in the main Tracking Package

Fixed

• Offset between skeleton hand wrist and forearm in sample scenes
• OpenXRLeapProvider CheckOpenXRAvailable has a nullref when XRGeneralSettings activeloader is not set up
• XrLeapProviderManager initialising when there is no active XR Loader - Github Issue 1360
• OnAnchorDisabled not being called when an Anchor gameobject is disabled
• Documentation for Finger.Direction says it is tip direction but should say intermediate direction
• OpenXR thumb joint rotation offsets do not align with LeapC expectations

Known issues

• Scenes containing the infrared viewer render incorrectly on Android build targets and in scriptable render pipelines such as URP and HDRP.
• Use of the LeapCSharp Config class is unavailable with v5.X tracking service
• Repeatedly opening scenes can cause memory use increase
• Currently the Ultraleap Hand Tracking feature for OpenXR requires the New and Legacy input systems to be enabled, to simultaneously use OpenXR and the Ultraleap Unity Plugin's features.
• The OpenXR Leap Provider does not currently support the Confidence hand property (and will return fixed values)
• If using OpenXR when using Unity 2020 and Ultraleap Tracking Plugin via .unitypackage, an error will appear on import relating to HandTrackingFeature. This has been fixed by Unity on Unity 2021
  • A workaround is to right click on \ThirdParty\Ultraleap\Tracking\OpenXR\Runtime\Scripts\HandTrackingFeature.cs and select 'Reimport'
• DrawMeshInstanced error log on certain Unity versions when using Capsule Hands. Unity Issue Tracker
• After using Ultraleap OpenXR in Unity Editor, the tracking mode of device 0 will be set to HMD until the Unity Editor session ends. This can stop the testing of non-XR scenes until the Unity Editor is re-opened

Full Changelog (Tracking Package)

Documentation

Discussions

Discord

Community Support

Thanks to our contributors:

@MaxPalmer-UH
@rblenkinsopp
@MattGrayUL
@Dwarph
@rorygames
@JuliaRonnebergerUL
@MattFiler
@BryceNewell-UL

Note

If using the .UnityPackage method to import the Plugin, it is recommended to delete any previous version before importing to avoid import issues.