Unity Plugin 6.8.0 #1441

MattGrayUL · 2023-05-12T14:49:58Z

MattGrayUL
May 12, 2023

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

Added

(Anchorable Behaviour) Code to automatically create a basic curve for attraction reach distance on new instance of the script
(Interaction Engine) New options to the create menu under "Interaction", can now create:
- Interaction Cube, 3D Button, 3D UI panel, Anchor, Anchorable Object, Attachment Hand Menu, Interaction Manager
(Physics Hands) Added function to check if a grasped object has been pinched
Option to show Upper Arm for Capsule Hands. (Works best in XR)
(Preview) XRI implementation now supports more Input Actions similar to that of OpenXRs Interaction Profiles

Changed

(Anchorable Behaviour) Ability to change the speed at which an object is attracted to the hand
(Physics Hands) Significantly improved palm latency
(Physics Hands) Reduced overall forces of hands and fingers
(Physics Hands) Improved object weight movement (less wobbly, overall faster and more predictable)
(Physics Hands) Improved contact information of helpers
(Physics Hands) Removed grasp distance
(Physics Hands) Removed "strength" from the provider and replaced with per hand velocity limits
(Physics Hands) Grasp helpers now modify object mass on grasp and restore it on release
(Hand Rays) TransformWristShoulderRay interpolates direction, rather than aim position
LeapXRServiceProvider Default offset mode now uses known device transforms or falls back to a default value
(Interaction) Grab ball now has an option to Continuously restrict the grab balls distance from the player. This allows grab balls to follow the player
Leap provider can now be set manually in leap provider manager
Removed Infrared Viewer example scene and prefab

Fixed

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