Release Unity Release 6.9.0 · ultraleap/UnityPlugin

This release was tested against Unity 2020LTS and 2021LTS
Tracking contains stable content including Core, Hands and the Interaction Engine.
Tracking Preview contains experimental/pre-release content.

Added

(Physics Hands) In-editor readme for example scene
(Attachment Hands) Predicted pinch position
(LeapServiceProvider) Ability to change the number of Service connection attempts and interval

Changed

(HandUtils) Only cache static Provider and CameraRig references when they are requested
(HandUtils) Mark Provider-dependant methods as obsolete and point to suitable replacements
(UIInput) Cursors are disabled by default and enabled when required
(LeapXRServiceProvider) When using Default offset, updated values will be used automatically
(Utils) All references to Utils in the Plugin specify Leap.Unity.Utils to avoid clashes with other Utils classes

Fixed

(OpenXRProvider) Hand Rotation, Direction, PalmPosition, PalmNormal and StabilisedPalmPosition do not match LeapC when using OpenXR layer 1.4.4
(OpenXRProvider) Elbow length incorrectly calculated.
(OpenXRProvider) Finger Direction is incorrectly set to the tip bone direction rather than the intermediate
(OpenXRProvider) Hand GrabStrength is computed before all required information is available
(UIInput) When hand lost or leaves canvas near hovered button, button stays hovered
(Jump Gem Locomotion) Jump Gems look for audio sources in their children, even if the audio source was set

Known issues

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'
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
The OpenXR Leap Provider palm can be in unexpected position when using pre-1.4.3 OpenXR Layer. A workaround is to ensure you use 1.4.3 or newer - installed by the 5.12.0 or newer Tracking Service Installer