Cannot use Passthrough Underlay with URP (Focus 3)

[curvaturegames]

I tried following the instructions here https://developer.vive.com/resources/openxr/openxr-mobile/tutorials/unity/passthrough/ (and related pages) but LayerType.Underlay doesn't work for me (only shows black).

Using Unity 2021.3.2f1 I created two new projects (one Standard, one URP) and imported VIVE OpenXR Plugin - Android, VIVE OpenXR ToolKit - Android and VIVE OpenXR ToolKit Samples- Android. Then made a build of the sample scene PassthroughSample_Projection from the ToolKit Samples package. It works fine with Standard but the Underlay option still only shows black in URP.

Is there something I am missing?

 

[jcm01]

Hi @curvaturegames

Did you get the underlay passthrough to work with URP yet? I am having the same issue on the new XR elite device

Edited April 17 by jcm01

[FracEdd]

We have passthrough working with URP both in our app and in the Toolkit sample. 

Unity 2022.3.22 

URP 12.1.10

[ILoveGames]

 

On 5/23/2023 at 10:02 PM, FracEdd said:

We have passthrough working with URP both in our app and in the Toolkit sample. 

Unity 2022.3.22 

URP 12.1.10

Hello,
I have the same problem than @curvaturegames
Initialy, my project was in Unity 2021.3.24 and URP 12.1.11
I tried to upgrade to Unity 2022.3.3 (as 2022.3.22 doesnt exist in archives, BTW, on this version, minimal URP version is 14.0.8, so i think you are talking about 2021)

But i cant get passthrough underlay working.even in the Toolkit sample (overlay works on both version) 
Are you working on focus 3 ? 

[ILoveGames]

For whoever need this, i resolved my problem by disabling HDR in the Universal Render Pipeline Asset.

[JustinOng]

I have the same problem when building the provided sample scene PassthroughSample_Planar, and disabling HDR did not help. The background is still just black after building the APK and installing it to the Focus 3.

I'm using Unity 2020.3.44f1 with OpenXR plugin version 1.6.0, and the Vive OpenXR packages are version 1.0.5.

The error messages in the logs are as follows:

07-11 20:14:39.160 15497 15519 E Unity   : Wave.OpenXR.ViveCompositionLayerPassthrough Xr Session not found
07-11 20:14:39.160 15497 15519 E Unity   : Wave.OpenXR.CompositionLayer.Passthrough.ViveCompositionLayerPassthrough:HTCPassthrough_CreatePassthrough(LayerType, PassthroughLayerForm, OnPassthroughSessionDestroyDelegate, UInt32)
07-11 20:14:39.160 15497 15519 E Unity   : Wave.OpenXR.Toolkit.CompositionLayer.Passthrough.CompositionLayerPassthroughAPI:CreatePlanarPassthrough(LayerType, OnPassthroughSessionDestroyDelegate, Single, UInt32)
07-11 20:14:39.160 15497 15519 E Unity   : CreatePlanarPassthrough:Update()
07-11 20:14:39.160 15497 15519 E Unity   :
07-11 20:14:39.160 15497 15519 E Unity   : CompositionLayerPassthroughAPI Failed to create projected pasthrough
07-11 20:14:39.160 15497 15519 E Unity   : Wave.OpenXR.Toolkit.CompositionLayer.Passthrough.CompositionLayerPassthroughAPI:CreatePlanarPassthrough(LayerType, OnPassthroughSessionDestroyDelegate, Single, UInt32)
07-11 20:14:39.160 15497 15519 E Unity   : CreatePlanarPassthrough:Update()