Oculus Developer Release Notes: v40

Oculus Integration for Unity - v40

What's New

• The minimum supported Unity version for Oculus app development is now 2020.3 LTS
• Scene empowers developers to quickly build complex and scene-aware experiences that have rich interactions with the user's environment, such as floors, ceiling, walls, and furniture
• Production release of Spatial Anchors. Spatial Anchors empower you to place world-locked content that can persist across sessions. If you've used experimental Spatial Anchors in the project, refer to the Upgrade Guide for easy migration from experimental to production.
• Updated Passthrough color control options to enable you to anticipate color Passthrough capabilities on future headsets
• Added support for tracking new keyboard models⁠
• Changed the default shader for keyboard models from diffuse to unlit
• Added package clean up utility to automatically remove deprecated assets from the Interaction SDK
• Created a hand tracking confidence shader that shows tracking confidence per finger
• Interactor now includes Unhover(), ShouldHover(), and ShouldUnhover(). Stricter enforcement added for Interactor to transition through states in the following order:
• Disabled <-> Normal <-> Hover <-> Select
• Added utility methods to get WitIntValue and WitFloatValue from responses in Voice SDK
• Added ProjectSettings file for sharing server access token between teams
• Added an intent selection dropdown for WitIntentHandler
• Parallel Wit requests are now queued to reduce latency

What's Fixed

• Fixed Unity cubemaps being rotated 180 degrees. If cubemaps were authored to depend on this rotation, use the Use Legacy Cubemap Rotation option in OVROverlay, which will restore this rotation. It would be best to correct the cubemap as this option will be deprecated in a later release.
• Added missing meta files to Unity integration
• Poke interactable visual will no longer get stuck in the select state if disabled
• Flat plane canvas no longer visible behind the curved overlay in BasicPoke and BasicRay
• All shaders are now compatible with OpenXR and URP
• HandGrab interactors set ShouldSelect and ShouldUnselect correctly
• Better handle cases where the mic is closed rapidly with no data

Improvements

• OVRSpatialAnchor is a Unity GameObject component that represents a Spatial Anchor. Add this component to any GameObject to associate the object with a new or existing Spatial Anchor.
• UUIDs used to persistently identify Spatial Anchors now use System.Guid
• Added sound effects to distance grab
• Angled key grab pose angle to look more natural
• In Hand Grab editor, GhostProvider loads automatically
• Cleaned up the interaction rig. Hands, controllers, hmd, and velocity calculators have been broken out into individual prefabs.
• Switched to Time.realtimesincestartup for all tweens and animations

Deprecation

• Removed experimental functions and structs for Spatial Anchors in OVRPlugin with the SpatialEntity prefix
• Transformables moved to Grabbables folder, Transformable folder is now deprecated

Known Issues

• The Thumb0 bone pose does not pinch all the way and there is about a 1/8 of an inch gap between the index finger and thumb when using the system gestures.
• Mixed Reality Capture on Rift is not supported in OpenXR. Workaround: In the Unity editor, go to the Oculus > Tools > OpenXR > Switch to Legacy OVRPlugin menu to switch to the VRAPI backend to continue using Rift MRC. Find detailed information in the Switch between OpenXR and Legacy VRAPI documentation.
• GetAppPerfStats and ResetAppPerfStats are currently not supported with the OpenXR backend. Workaround: In the Unity editor, go to the Oculus > Tools > OpenXR > Switch to Legacy OVRPlugin menu to switch to the VRAPI backend to continue using Rift MRC. Find detailed information in the Switch between OpenXR and Legacy VRAPI documentation.
• Fast movement or teleportation with Application Space Warp in Unity can have some artifacts.
Workaround: Move SetAppSpacePosition/SetAppSpaceRotation to LateUpdate to guarantee that all movement logic has been run before sending new app space pose to the XR plugin.

• PC XRSDK GetDominantHand crashes app. Workaround: Because of a limitation of Unity native plugin, accessing Oculus features through C# initializer could trigger crash on PC. If this happens, move the member initialization to Awake() or Start() functions.
• Changing modes in Lipsync_Demo on Oculus Quest is currently not supported.
• If you're using the Spectator Camera feature and you switch the view, the casting video is flipped upside down. Workaround: Set SetMrcFrameImageFlipped to false. For more information, see the Known Issues section in the Spectator Camera user guide.

Unreal Engine 4 Integration

1. Register your GitHub ID⁠ with Epic.
2. Log into your GitHub account.
3. Go to https://github.com/Oculus-VR/UnrealEngine/tree/4.27⁠

What's New

• OVRPlugin updated to 1.72.0
• Initial release of Spatial Anchors. Spatial Anchors empower developers to place world-locked content that can persist their location and rotation across sessions over time. A Spatial Anchor example project is available in the Samples folder. See Spatial Anchors Overview.
• Initial release of Scene. Scene empowers developers to quickly build complex and scene-aware experiences that have rich interactions with the user's environment, including floors, ceilings, walls, and furniture. For more details, see Scene Overview.

What's Fixed

• The HandTrackingVersion is now set correctly in the manifest file.
• Ovrplugin XR on PC VR no longer crashes on exit.

Known Issues

Platform SDK

• Adds the Blocking feature to Platform SDK.

Other Developer Updates

• Developer Dashboard: Developers can use the developer dashboard release channels⁠ to manage debuggable builds. Developers can upload debuggable builds to any non-public channel in the developer dashboard.
• A marketing attribution dashboard was recently added to help you track how effective your marketing efforts are. For more information, see Marketing Attribution Analytics.