Unreal Engine 4 IntegrationUnreal provides built-in support for Oculus Rift and Gear VR development on Windows.Unreal apps run on the Oculus platform automatically apply stereoscopic rendering to the main camera as well as positional and orientation tracking for the Rift, or orientation tracking for Gear VR.For more information on downloading and using the Oculus Unreal integration, please seeUnreal Introduction.Online SubsystemsSeveral features of the Oculus Platform SDK may be accessed through the Unreal Online Subsystems interface:AchievementsRoomsMatchmakingIdentityEntitlementsP2P networkingFriends leaderboardsNot all functionality of these features is available through the Online Subsystems interface. Developers who need unsupported features should use the Oculus Platform Plugin available with our Platform SDK.Online Subsystems access is available in the following ways:Oculus Platform SDK v. 1.6 and 1.7 include a standalone OSS plugin (Rift only)Epic GitHub: 4.13.0-preview-2 includes OSS support (Rift and Gear VR)Oculus GitHub: oculus-4.12.5-release-1.7.0 and oculus-4.13.0-preview-2-1.7.0 includes OSS support (Rift and Gear VR)For more information on Unreal Subsystems, see Epic’s Online Subsystems Overview.New FeaturesAdded adaptive viewport scaling, which automatically changes pixel density based on resource availability, with configurable min/max. See Unreal Console Commands for details. (Rift only)Added Oculus Platform SDK support to mobile VR applications.Added Blueprint for Oculus Platform entitlement checks (available in SI 1.6).A subset of Oculus Platform features are now available through the Unreal Online Subsystems interface.Added cylinder TimeWarp overlay support (Gear VR only) for UI components, etc. For more information, see VR Compositor Layers.Added ability develop using GearVR plugin and Mobile renderer on the PC using the Oculus Rift. To use, disable OculusRift and SteamVR plugins for your project, and add -OpenGL-FeatureLevelES2 to your command line.API ChangesAdded Cylinder layer type to FHMDLayerDesc in HeadMountedDisplayCommon.h.In IInputInterface.h, FHapticFeedbackBuffer uint8* RawData was changed to TArray RawData, and uint8 *CurrentPtr; was changed to uint32 CurrentPtr.IInputInterface::SetHapticFeedbackBuffer was removed and HapticBuffer was added to FHapticFeedbackValues::FHapticFeedbackBuffer* HapticBuffer. You should now use IInputInterface::SetHapticFeedbackValues, whether you are using a buffer or not.APlayerController::SetHatpicsByValue calls to Oculus Touch are now limited to 30 per second due to performance issues. Additional calls with a value other than zero (i.e., stop commands) are discarded upon receipt.Known IssuesUE4.12 and 4.13 in Oculus GitHub repository: A significant drop in framerate occurs when UE4 is not in focus in VR preview mode. To avoid this issue, uncheck the Use Less CPU when in Background inEdit > Editor Preferences > General (left sidebar) > Miscellaneous (left sidebar) > Performance.Stereo Layer Position Type: World Locked is not currently supported for cylinder overlays.https://developer3.oculus.com/downloads/game-engines/1.7.0/Unreal_Engine_4_Integration/

aussieburgerVR said: hmmm according to Epic gearvr is not supported at the moment:https://answers.unrealengine.com/questions/469285/gearvr-building-with-online-subsystem-oculus-plugi.htmlmajor bummer - but if the multiplayer aspects are not exposed to blueprints we would not have been ready to use it yet anyway :(I was working with Epic about this. It unfortunately did not get into 4.13 Preview 2. We did get it merged into their github, so if you build the engine from source it'll be available there. bazhuadyeu said: sorry for some newbie questions:1.does this mean now i can use blueprint nodes such as "Write Achievement Progress" and “Write Leaderboard Integer” to update Achievements and Leaderboards that i created in the Oculus Platform by using 4.13 Preview 2?2.do i need to install "Oculus Platform Plugin" anymore? 1) It would work for simple achievements, count achievements if you pass in integers, bitfield achievements if you pass in ints or strings2) If you are on 4.13 or later you don't need to install it anymore aussieburgerVR said: Additional query as well as the two posts above:Will this also support Voice Chat when connected P2P? If so how is it done (can it be done over blueprints?) and if not is that a planned feature of the SDK in the near future?Thanks in advance for the info!Voice Chat through the OSS currently isn't supported, but it is a feature we plan to integrate. Currently it is available through the native c sdk

Hi Fengkan, thanks for your comments. Redirection to the intro page is the expected action when clicking on the Download link, as our Unreal integration ships with the engine itself and there is no external SDK per se. The engine is available as binary or source from several locations, and the details are laid out in the page you're redirected to. We do briefly mention that in the Unreal release notes and download page, but I agree it should be clearer and more prominent - I'll make an update with future releases that will highlight this a bit better. Thanks also for the dead link callout - I'll fix that. The link should point to this address: https://developer.oculus.com/documentation/platform/latest/concepts/dg-core-content/#dg-cc-entitlements

Epic freezes major releases over a month before shipping them, so you can expect binary builds to fall behind the Oculus SDK in terms of features and version. However, the 1.6 runtime will work for a long time. If you want to use the very latest features, please see https://github.com/Oculus-VR/UnrealEngine/tree/oculus-4.13.0-preview-3-1.7.0.

This update sounds really great to finally get some of these Oculus Platform features on gearvr!! :)A question though - when stating:A subset of Oculus Platform features are now available through the Unreal Online Subsystems interface.Which features are available now exactly? And which are exposed to blueprints?I'm particularly interested in:P2P networkingFriends leaderboardsAs we have a great idea for a co-op game. Can the P2P networking be done over the same "create session" and "join session" nodes as per other UE4 online subsystems? and same for the leaderboard feature - simply using the "show leaderboard" node?Additionally if I try to package for gearvr with the Oculus Subsystem plugin enabled in 4.13 Preview 2 I get the following build fail: https://answers.unrealengine.com/questions/469285/gearvr-building-with-online-subsystem-oculus-plugi.html

>Which features are available now exactly? And which are exposed to blueprints?This is what the map to:Achievements -> OnlineAchievementsInterfaceOculusRooms -> OnlineSessionInterfaceOculusMatchmaking -> OnlineSessionInterfaceOculusIdentity -> OnlineIdentityOculusEntitlements -> OnlineIdentityOculusP2P networking -> OculusNetDriverFriends leaderboards -> OnlineLeaderboardInterfaceOculusFor blueprints, in addition to the standard UE4 Onlinesubsystem blueprints, we also have a blueprint called VerifyEntitlement to verify that the user passes the entitlement check. It's found under Oculus|Entitlement> Can the P2P networking be done over the same "create session" and "join session" nodes as per other UE4 online subsystems? and same for the leaderboard feature - simply using the "show leaderboard" node?I don't think that's exposed right now through the blueprint nodes. I have to double check on this, but last time I looked the create session / join sessions worked by finding sessions before joining. However, our rooms system works by invites and that part isn't exposed to blueprints. So you would be able to create sessions, but not find them to join them through the nodes.Leaderboards through blueprints should work in the next update when we add regular leaderboards (not just leaderboards showing only friends) to the OSS. Right now I think that's the only kind of leaderboard exposed through the blueprints.>Additionally if I try to package for gearvr with the Oculus Subsystem plugin enabled in 4.13 Preview 2 I get the following build failLooking into this

cybereality

Grand Champion

9 years ago

Unreal Engine 4 Integration 1.7.0 Released

Unreal Engine 4 Integration

Unreal provides built-in support for Oculus Rift and Gear VR development on Windows.

Unreal apps run on the Oculus platform automatically apply stereoscopic rendering to the main camera as well as positional and orientation tracking for the Rift, or orientation tracking for Gear VR.

For more information on downloading and using the Oculus Unreal integration, please seeUnreal Introduction.

Online Subsystems

Several features of the Oculus Platform SDK may be accessed through the Unreal Online Subsystems interface:

Achievements
Rooms
Matchmaking
Identity
Entitlements
P2P networking
Friends leaderboards

Not all functionality of these features is available through the Online Subsystems interface. Developers who need unsupported features should use the Oculus Platform Plugin available with our Platform SDK.

Online Subsystems access is available in the following ways:

Oculus Platform SDK v. 1.6 and 1.7 include a standalone OSS plugin (Rift only)
Epic GitHub: 4.13.0-preview-2 includes OSS support (Rift and Gear VR)
Oculus GitHub: oculus-4.12.5-release-1.7.0 and oculus-4.13.0-preview-2-1.7.0 includes OSS support (Rift and Gear VR)

For more information on Unreal Subsystems, see Epic’s Online Subsystems Overview.

New Features

Added adaptive viewport scaling, which automatically changes pixel density based on resource availability, with configurable min/max. See Unreal Console Commands for details. (Rift only)
Added Oculus Platform SDK support to mobile VR applications.
Added Blueprint for Oculus Platform entitlement checks (available in SI 1.6).
A subset of Oculus Platform features are now available through the Unreal Online Subsystems interface.
Added cylinder TimeWarp overlay support (Gear VR only) for UI components, etc. For more information, see VR Compositor Layers.
Added ability develop using GearVR plugin and Mobile renderer on the PC using the Oculus Rift. To use, disable OculusRift and SteamVR plugins for your project, and add -OpenGL-FeatureLevelES2 to your command line.

API Changes

Added Cylinder layer type to FHMDLayerDesc in HeadMountedDisplayCommon.h.
In IInputInterface.h, FHapticFeedbackBuffer uint8* RawData was changed to TArray RawData, and uint8 *CurrentPtr; was changed to uint32 CurrentPtr.
IInputInterface::SetHapticFeedbackBuffer was removed and HapticBuffer was added to FHapticFeedbackValues::FHapticFeedbackBuffer* HapticBuffer. You should now use IInputInterface::SetHapticFeedbackValues, whether you are using a buffer or not.
APlayerController::SetHatpicsByValue calls to Oculus Touch are now limited to 30 per second due to performance issues. Additional calls with a value other than zero (i.e., stop commands) are discarded upon receipt.

Known Issues

UE4.12 and 4.13 in Oculus GitHub repository: A significant drop in framerate occurs when UE4 is not in focus in VR preview mode. To avoid this issue, uncheck the Use Less CPU when in Background inEdit > Editor Preferences > General (left sidebar) > Miscellaneous (left sidebar) > Performance.
Stereo Layer Position Type: World Locked is not currently supported for cylinder overlays.

https://developer3.oculus.com/downloads/game-engines/1.7.0/Unreal_Engine_4_Integration/

17 Replies

Replies have been turned off for this discussion

Anonymous
9 years ago
This update sounds really great to finally get some of these Oculus Platform features on gearvr!! :)
A question though - when stating:

A subset of Oculus Platform features are now available through the Unreal Online Subsystems interface.
Which features are available now exactly? And which are exposed to blueprints?
I'm particularly interested in:
P2P networking
Friends leaderboards
As we have a great idea for a co-op game. Can the P2P networking be done over the same "create session" and "join session" nodes as per other UE4 online subsystems? and same for the leaderboard feature - simply using the "show leaderboard" node?

Additionally if I try to package for gearvr with the Oculus Subsystem plugin enabled in 4.13 Preview 2 I get the following build fail:
https://answers.unrealengine.com/questions/469285/gearvr-building-with-online-subsystem-oculus-plugi.html
brian_jew
Expert Protege
9 years ago
>Which features are available now exactly? And which are exposed to blueprints?
This is what the map to:
Achievements -> OnlineAchievementsInterfaceOculus
Rooms -> OnlineSessionInterfaceOculus
Matchmaking -> OnlineSessionInterfaceOculus
Identity -> OnlineIdentityOculus
Entitlements -> OnlineIdentityOculus
P2P networking -> OculusNetDriver
Friends leaderboards -> OnlineLeaderboardInterfaceOculus
For blueprints, in addition to the standard UE4 Onlinesubsystem blueprints, we also have a blueprint called VerifyEntitlement to verify that the user passes the entitlement check. It's found under Oculus|Entitlement

> Can the P2P networking be done over the same "create session" and "join session" nodes as per other UE4 online subsystems? and same for the leaderboard feature - simply using the "show leaderboard" node?

I don't think that's exposed right now through the blueprint nodes. I have to double check on this, but last time I looked the create session / join sessions worked by finding sessions before joining. However, our rooms system works by invites and that part isn't exposed to blueprints. So you would be able to create sessions, but not find them to join them through the nodes.

Leaderboards through blueprints should work in the next update when we add regular leaderboards (not just leaderboards showing only friends) to the OSS. Right now I think that's the only kind of leaderboard exposed through the blueprints.

>Additionally if I try to package for gearvr with the Oculus Subsystem plugin enabled in 4.13 Preview 2 I get the following build fail

Looking into this
Anonymous
9 years ago
hmmm according to Epic gearvr is not supported at the moment:
https://answers.unrealengine.com/questions/469285/gearvr-building-with-online-subsystem-oculus-plugi.html
major bummer - but if the multiplayer aspects are not exposed to blueprints we would not have been ready to use it yet anyway :(
bazhuadyeu
Honored Guest
9 years ago
sorry for some newbie questions:

1.does this mean now i can use blueprint nodes such as "Write Achievement Progress" and “Write Leaderboard Integer” to update Achievements and Leaderboards that i created in the Oculus Platform by using 4.13 Preview 2?

2.do i need to install "Oculus Platform Plugin" anymore?
Anonymous
9 years ago
Additional query as well as the two posts above:
Will this also support Voice Chat when connected P2P? If so how is it done (can it be done over blueprints?) and if not is that a planned feature of the SDK in the near future?

Thanks in advance for the info!
brian_jew
Expert Protege
9 years ago

aussieburgerVR said:

hmmm according to Epic gearvr is not supported at the moment:
https://answers.unrealengine.com/questions/469285/gearvr-building-with-online-subsystem-oculus-plugi.html
major bummer - but if the multiplayer aspects are not exposed to blueprints we would not have been ready to use it yet anyway :(

I was working with Epic about this. It unfortunately did not get into 4.13 Preview 2. We did get it merged into their github, so if you build the engine from source it'll be available there.

bazhuadyeu said:

sorry for some newbie questions:

1.does this mean now i can use blueprint nodes such as "Write Achievement Progress" and “Write Leaderboard Integer” to update Achievements and Leaderboards that i created in the Oculus Platform by using 4.13 Preview 2?

2.do i need to install "Oculus Platform Plugin" anymore?

1) It would work for simple achievements, count achievements if you pass in integers, bitfield achievements if you pass in ints or strings

2) If you are on 4.13 or later you don't need to install it anymore

aussieburgerVR said:

Additional query as well as the two posts above:
Will this also support Voice Chat when connected P2P? If so how is it done (can it be done over blueprints?) and if not is that a planned feature of the SDK in the near future?

Thanks in advance for the info!

Voice Chat through the OSS currently isn't supported, but it is a feature we plan to integrate. Currently it is available through the native c sdk
fengkan
Explorer
9 years ago
Every time I click the download button on this page,

https://developer3.oculus.com/downloads/game-engines/1.7.0/Unreal_Engine_4_Integration/

I am redirected to

https://developer3.oculus.com/documentation/game-engines/latest/concepts/unreal-engine/

How can I download the SDK?
fengkan
Explorer
9 years ago
BTW

https://developer3.oculus.com/documentation/game-engines/latest/concepts/unreal-gsg/

contains a dead link of

https://developer.oculus.com/documentation/platform/latest/tasks/dg-cc-entitlements/
zenshin
Explorer
9 years ago
Hi Fengkan, thanks for your comments. Redirection to the intro page is the expected action when clicking on the Download link, as our Unreal integration ships with the engine itself and there is no external SDK per se. The engine is available as binary or source from several locations, and the details are laid out in the page you're redirected to.

We do briefly mention that in the Unreal release notes and download page, but I agree it should be clearer and more prominent - I'll make an update with future releases that will highlight this a bit better.

Thanks also for the dead link callout - I'll fix that. The link should point to this address:
https://developer.oculus.com/documentation/platform/latest/concepts/dg-core-content/#dg-cc-entitlements
motorsep
Start Partner
9 years ago
It looks like UE 4.13 is coming with 1.6 SDK :(

Any idea when Epic puts 1.7 in ? (I hope not in 4.14 o.O cuz that would be awful a lot of waiting)