Ultraleap Unity Plugin 6.11.0

[MattGrayUL]

• This release was tested against Unity 2021LTS and 2022LTS
• Tracking contains stable content including Core, Hands and the Interaction Engine.
• Tracking Preview contains experimental/pre-release content.

Headline features of 6.11.0 include:

Added

• (Physics Hands) Finger displacement values to each finger
• (Physics Hands) Interface based events for easier development
  • Please see the updated scripts in the Physics Hands example scene for more information
• (HandRays) Add methods to invoke handray Frame & State Change in inherited classes
• (LeapXRServiceProvider) Use of device transforms from the service when using Default device offset mode. This does not include tilt/rotation

Changed

• (Physics Hands) Burst compute is now used to improve certain physics calculation performance
  • In Unity 2020+ this is used for "hand is colliding" functions only
  • In Unity 2022+ all collision functions are handled by Burst
• (Physics Hands) Parameters of the hand (e.g. contact distance) are now controlled at the provider level and have adjusted defaults for better interactions
• (Physics Hands) OnObjectStateChange event has been replaced with SubscribeToStateChanges
  • This is tailored to handle specific Rigidbodies and will only fire when your subscribed Rigidbody is affected
• (Physics Hands) Hand and bone states have been improved and are more consistent with expectations
• (Physics Hands) Updated example scene with new events and better visuals
• (Physics Hands) Updated PhysicsBone IsObjectGrabbable calculations to use the closest point on the bone to the hovered object
• (Physics Hands) Improved Physics Hands grasp helpers to take into account grabs where bones are facing each other
• (Locomotion) Expose teleport anchor list & last teleported anchor
• (Locomotion) Moved Jump Gems further away from the arm, to account for sleeves
• (Locomotion) Added functionality to update the initial position and rotations of the TP anchor after the first Awake

Fixed

• (Physics Hands) Hand forces are reduced when pushing into objects with fingers
• (Physics Hands) Stopped physics buttons from rotating incorrectly
• (Locomotion) Jump Gems look for audio sources in their children, even if the audio source was set
• (Locomotion) If pinched gem was null, jump gem teleport could still be in a selected state
• (Locomotion) Teleport ray did not change to an invalid colour when no colliders were hit
• (Core) Fixed hands juddering in XR when interpolation is turned off on the LeapXRServiceProvider. Turning off interpolation now turns off head pose interpolation
• (PoseViewer) Pose viewer rotation does not match the targets rotation

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)
• 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
• Running both the Ultraleap XRHands Subsystem and another XRHands Subsystem at the same time causes unstable results. Only enable one at a time.

Full Changelog (Tracking Package)

Documentation

Discussions

Discord

Community Support

Thanks to our contributors:

@MaxPalmer-UH
@rblenkinsopp
@MattGrayUL
@Dwarph
@rorygames
@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.

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This discussion was created from the release Ultraleap Unity Plugin 6.11.0.

[cecarlsen]

Thanks for the update! I get a long list of deprecation warnings in Unity 2023.1. All related to the method Object.FindObjectOfType(). Quite annoying. You just need to replace it with the FindFirstObjectByType<>() method.

[MattGrayUL]

Thanks for raising this, as the release notes mention, we specifically test against Unity 2021 and 2022, but not against 2023 - that does not mean we don't want to support 2023

This issue is one I will raise with the team and look to address soon

[MattGrayUL]

I have implemented this and have a pull request for us to review internally - this should make it into the next release :)