Unity Plugin 6.6.0

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

Headline features of 6.6.0 include:

Added

• Interaction Grab Ball for 3D UI

Changed

• Capsule Hands pinky metacarpal position to better represent the actual joint position
• Reduced performance overhead of OpenXRLeapProvider
• Reduced performance overhead when accessing Hands via Hands.Right, Hands.Left and Hands.GetHand
• Reduced performance overhead when transforming Leap.Frames, Leap.Hands and Leap.Bones using Basis
• Reduced performance overhead when accessing scale in Capsule Hands
• Reduced performance overhead when using Preview UI Input Cursor

Fixed

• Preview package example scene referencing a prefab in the non-preview package

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.