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Questions tagged [openxr]

69 questions
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Rendering independent bones

I'm trying to render a model of a hand in a 3D space based on the positions given by the XrHandJointLocationEXT array from the XR_EXT_hand_tracking extension. I am using both GTLF hand models from Valve, which have the correct amount of bones to…
bl4ckb0ne
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How to get the SteamVR Inputs using OpenXR in Unity?

I enabled in Unity the OpenXR VR mode. Then I enabled the HTC Vive interaction profile and others After that I can see the world and I can get the Hand positions of the HTC Vive controller, but I can not get any input, How can I get for example…
Led Machine
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Is OpenXR plugin supported in World Locking Tools for Unity

I'm looking for the best solution to implement Spatial Anchors in my app (Azure Spatial Anchors are not a viable solution for my use-case). I found out about World Locking Tools for Unity, but I'm not sure if it supports Unity 2020.3 using OpenXR…
sele
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Error when deploying by USB to Hololens 1 after build using Unity

I am trying to deploy and run Hololens 1 app to the device by USB with Unity. I follow this tutorial (and many more on YouTube before…
jacob galam
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OpenXR - unresolved external symbol

I keep getting unresolved external symbol on xrCreateSpatialGraphNodeSpaceMSFT and at this point I just ran out of things I could try to make this thing work. I wouldn't call myself an experienced programmer by any means so I guess it is very…
Lucas Hoof
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Cannot access filesystem in CMake UPW Project

I built an application that uses OpenXR with DirectX to display a simple scene in VR. As I'm tasked with implementing this in an already existing project, it's built using CMake, which works perfectly fine with Visual Studio 2019. The application…
SwatVI
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Using Vulkan + OpenXR, getting strange transparency results on quest (not present in PCVR)

The long story short is that alpha values are behaving very strangely: transitioning reasonably between 1.0 to 0.5, but from 0.5 to 0.0 transitioning from half-opacity-{color} to opaque-black. ^ this is my font renderer (captured from quest beamed…
Phildo
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why is openxr 'xrCreateSession' resulting in many vulkan "SPIR-V module not valid:" validation errors (and how can I fix it)?

xrCreateSession takes in an XrInstance and an XrSessionCreateInfo. The XrInstanceCreateInfo used to create the instance isn't particularly interesting: the only parameters of note are enabledExtensionCount (= 1), and enabledExtensionNames (=…
Phildo
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How chromium browser works with openxr runtime

I have installed monado runtime: openxr_android-inProcess-debug.apk, openxr loader: YYSSLauncher-sys.apk, test app:hello_xr-OpenGLES-debug.apk in 3D glass. Now, test app runs fine, it does rendered scene into 3d space. But the problem is chromium…
heping bao
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how to Get Left Right top bottom values from projection XMMatrix for Directx 11?

I am trying to incorporate VR headset into my DIRECTX11 application using OPENXR. I need to create projection matrix using DirectX::XMMatrixPerspectiveOffCenterLH. I have openXR XrCompositionLayerProjectionView view. in the OpenXR sample, they have…
Priyank shishodia
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Toggling between Camera Clear Flags in Unity with button press

I am trying to toggle between the Solid Color clear flag and the skybox clear flag with a button press. This is so I can switch between passthrough AR and VR mode. Currently I have a script running which toggles on the passthrough, but by default…
Shawn Tornatto
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OpenXR Pose Prediction in Unity

Here they explain: "Before Unity can submit the first rendering command that depends on the view transformation matrix, it must first get the view matrix from the VR SDK. To keep latency as low as possible, the VR SDK predicts the head transform…
Nalara
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HoloLens 2 doesnt connection problem to unreal 4.27

I am having a connection problem with hololens 2 and unreal 4.27. I am trying to deploy my project to hololens 2 and it is not happening. screenshot I am using openxr and mrtk plugins. I also tried uxttools and windows mixed reality plugin in 4.25,…
simal
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OpenXR - Intercepting data inside Layer, but i have invalid XrInstance?

Im creating some OpenXR Layer for ValveIndex HMD. As standard specifies i have created .dll with exported entry point (xrNegotiateLoaderApiLayerInterface function). I also delegated OpenXR functions to my own implementations inside…
Xoliper
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How do you use Rust glium with openxr in a VR headset?

I am working on a Rust NDK app (uses #[no_mangle] fn android_main(android_app:android_activity::AndroidApp) ; compatible with cargo apk run) I have a version that works with glium #[no_mangle] fn android_main(android_app: AndroidApp) { …
Mutant Bob
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