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Unity 2.4.0 ( July 3, 2024 ):

How to Install VIVE OpenXR Plugin in Unity

Release Notes:

Plugin package name in Unity is VIVE OpenXR Plugin.

Release Information:

Version: 2.4.0
Unity Engine Version: 2021.3.3f1 or newer
Unity Input System: 1.4.3 is recommended.
Unity OpenXR Plugin: 1.3.1 or 1.6.0 are recommended.
Target Platform: PC Win64, Android arm64
Target Device: VIVE XR Elite, VIVE Focus 3, VIVE Pro Series, VIVE Cosmos
Graphics API: DX11, DX12, OpenGLES3, Vulkan
OpenXR Android Loader Version: Khronos openxr_loader_for_android-1.0.32

Changes:

The VIVE XR Tracker supports buttons.
The Realistic Hand Interaction toolkit supports "Throw". (Requires Unity XR Hands 1.3.0)

Supported Extensions

Extensions	PC Streaming (Focus3/ XR Elite)	PC Vive Cosmos	PC Vive Pro series	AIO Focus3/ XR Elite
Hand Tracking XR_EXT_hand_tracking	V	V	V	V
VIVE Cosmos Controller XR_HTC_vive_cosmos_controller_interaction	V※	V	X	X
Eye Gaze XR_EXT_eye_gaze_interaction	V	V	V	V
Composition Layer XR_KHR_composition_layer_cylinder XR_KHR_composition_layer_color_scale_bias	X	X	X	V
Scene Understanding XR_MSFT_scene_understanding	X	V	V	X
Hand Interaction XR_HTC_hand_interaction	X	V	V	V
PassThrough XR_HTC_passthrough	V	X	X	V
Facial Tracking XR_HTC_facial_tracking	V	V	V	V
Foveation XR_HTC_foveation	X	X	X	V
Display Refresh Rate XR_FB_display_refresh_rate	X	X	X	V
VIVE Wrist Tracker XR_HTC_vive_wrist_tracker_interaction	V※	X	X	V
VIVE XR Tracker (beta) XR_HTC_vive_xr_tracker_interaction XR_HTC_path_enumeration	X	X	X	V
Plane Detection (beta) XR_EXT_plane_detection	X	X	X	V
Anchor (beta) XR_HTC_anchor	X	X	X	V

※Correspondent VIVE Streaming settings required.

Feature Dependency

The "/input/grip/pose" and "/input/squeeze/value" values of XR_HTC_hand_interaction extension depend on HTC XR Elite v1.0.999.456 or newer ROM.
The XR_FB_display_refresh_rate extension depends on HTC XR Elite v1.0.999.456 or newer ROM.
The "XR_HTC_vive_xr_tracker_interaction" extension depends on HTC XR Elite v1.0.999.528 or newer ROM.
The "/input/menu/click", "/input/squeeze/click", "/input/trigger/click", "/input/trackpad/click" and "/input/trackpad/touch" values of "XR_HTC_vive_xr_tracker_interaction" extension depend on HTC XR Elite v1.0.999.676 or newer ROM.

Toolkits

Custom Gesture: Provides interfaces to customize hand gestures by calculating the fingers "bending" states and "distance" between fingers.
Realistic Hand Interaction: Provides interfaces to grab/throw an object using Hand Tracking.
- Requires Unity XR Hands 1.3.0. Should NOT use other version. - AIO only.