Oculus Developer Release Notes: v23

Oculus Integration for Unity - v23.1

• Added support for OpenXR experimental plugin for Oculus Quest and Oculus Quest2.
• Added Phase Sync adaptive frame timing to Oculus Quest and Oculus Quest 2 apps.
• Oculus Quest 2 can now set 80Hz and 90Hz display refresh rates when you select Oculus Quest 2 as a target device.

• Fixed Unity MRC Vulkan gamma color issue and several validation layer errors
• Support added for OVROverlay for Vulkan (requires upgrading to the latest Unity version for working functionality)
• GetSystemHeadsetType() returns ovrpSystemHeadset_Oculus_Link_Quest_2 when using Oculus Link with Oculus Quest 2
• Enabled GPU boost on Oculus Quest when MRC casting is activated
• Renamed the target device name for Oculus Quest 2 in the Android Manifest file from delmar to quest2

• Ended support for Unity version 2017.4. The minimum supported Unity Editor version for Oculus development is 2018.4.
• Updated the Oculus Unity Integration to v18.0, including:
• Updated OVRPlugin to 1.55.1
• Updated the Audio Spatializer to 23.0
• Updated the Platform integration to 23.0
• Updated the Avatar integration to 20.1
• Updated the LipSync integration to 20.0

• Updated Oculus master license for the Oculus Integration package.

Unreal Engine 4 Integration

• OVRPlugin updated to v23 (1.55.0)
• Increased performance of Multi-View apps by optimizing shader generation and by making sure only view-dependent variables are generated as arrays by way of a new VIEW_UNIFORM_BUFFER_MEMBER_PER_VIEW macro.
• Reduced Vulkan latency by optimizing the rendering pipeline to better use fragment density maps to drive foveation.
• Added Phase Sync adaptive frame timing to Oculus Quest and Quest 2 apps. To enable this in UE4, go to Edit > Project Settings > Plugins > OculusVR, and then select Mobile > Phase Sync.
• Oculus Quest 2 can now set 80Hz and 90Hz display refresh rates when "quest2" is added as a target device in the Android Manifest.
• Added DisplayRefreshRateChanged event-based delegates and components so that apps can detect if the system changes the display refresh rate due to throttling.
• The target device name for Quest 2 in the Android manifest is now written out as "quest2". The older alias "delmar" is deprecated.
• Rift CV1 is now the default color space if the color gamut setting is unknown or not enabled.
• Late Latching is now automatically disabled when Occlusion Culling is active.
• On Quest and Quest2, memory bound to Vulkan MSAA attachments is now lazy-allocated to keep them on-tile and prevent taking up actual memory.

• Fixed SceneCapture2D with Multi-View SceneColor.
• Fixed non-Multi-View render targets in Multi-View scenes.
• Fixed hash collisions in the PSO cache.
• Fixed an issue where audio could playback on the default audio device instead of the selected device.
• Fixed the editor primitive / gizmo offset issue.
• Fixed a shader compiler error in the MobileSceneCapture example.
• Fixed an issue that would scramble Manifest-USFSFiles_Android.txt upon being read.

• None, at this time.

Platform SDK

• New LogDeepLinkResult method to report the health of a user's deeplink launch. See Rich Presence for more information.
• New SetInstanceId method in Rich Presence to track instances of a Destination. See Rich Presence for more information.

Avatar SDK

• This is a maintenance release. There are no developer-facing changes in this release.

Mobile SDK

• 90 Hz mode is now supported. For information on using this feature, see the Refresh Rate topic.

• The ovrDeviceType value, VRAPI_DEVICE_TYPE_OCULUSQUEST2 has been added to the API.
• The ovrTouch bit flags, ovrTouch_ThumbRest, ovrTouch_LThumbRest, and ovrTouch_RThumbRest have been added to the API.
• The ovrEventType value, VRAPI_EVENT_DISPLAY_REFRESH_RATE_CHANGE, has been added to the API. This event is sent when the display refresh rate is changed by the system.
• The ovrSystemStatus value, VRAPI_SYS_STATUS_SYSTEM_UX_ACTIVE, has been removed from the API.
• The ovrSystemProperty value, VRAPI_SYS_PROP_VIDEO_DECODER_LIMIT, and corresponding structure, ovrVideoDecoderLimit, have been removed from the API.

• There are no major bug fixes with this release.

• There are no known issues with this release.

Audio SDK

• Maintenance release that contains bug fixes and performance improvements.

Other Developer Updates

• A marketing attribution dashboard was recently added to help you track how effective your marketing efforts are. For more information, see Marketing Attribution Analytics.
• Looking to submit your app to the Oculus Store? Check out a new developer guide focused on the many best practices, recommendations, and insights to help you with technical review, passing the VRCs, and content review. Oculus Store - App Submission Success Guide.