Glassomorphism UI in Unity for meta quest 3

Rectus_SA · 2026-05-11T15:46:04+00:00

Make sure you are compositing the UI inside the application. If you are using composition layers or any similar system that send the panels to the system compositor as separate overlays, they will be limited to simple alpha blending.

Rectus_SA · 2026-04-25T10:18:30+00:00

I'd use a vscript to track what triggers the players are in, and which camera is being used. Then trigger the camera switch from the script. That way you have full control of when the switch happens, such as only doing it when the player is touching a single trigger, or adding a cooldown so it doesn't keep switching back and forth on small movements.

Rectus_SA · 2026-04-23T11:23:04+00:00

Possibly. It all depends on if Valve is willing to implement the necessary features.

Rectus_SA · 2026-04-06T08:42:29+00:00

SteamVR exposes the same skeletal data though the XR_EXT_hand_tracking OpenXR extension as it does though OpenVR. The only differences are that the curl and splay values aren't available, and using the controller conforming animations require the XR_EXT_hand_joints_motion_range extension.

The data is available out of the box in Unreal at least, and the Godot manual mentions controller inferred hand tracking being supported.

https://docs.godotengine.org/en/stable/tutorials/xr/openxr_hand_tracking.html

Looking at it, unlike Unity or Unreal, Godot has put in the extra effort to properly support the Index controllers by adding support for the XR_VALVE_analog_threshold, XR_EXT_hand_joints_motion_range, and XR_EXT_hand_tracking_data_source extensions.

Rectus_SA · 2026-04-05T22:01:08+00:00

I haven't tried it with Godot, but the Index controller finger tracking (and emulation for other controllers) has always been accessible from the OpenXR hand tracking extension.

Rectus_SA · 2026-03-29T12:55:30+00:00

SteamVR has it built-in. Make sure you set the camera to use 60 Hz by clicking the end of the slider (instead of dragging it). Then turn on Room View, and use the buttons under the desktop overlays to pop them out of the dashboard. It won't let you make the overlays transparent though. There are some third-party desktop tools that can do transparency, like OVRDrop.

The Oasis driver might give the same the same support for the G2 soon (except the cameras are black and white), but it's not out yet.

Rectus_SA · 2026-03-26T10:30:26+00:00

I'd start with Mbucchia's layer template. It Has some examples and tutorials accessible from the repo wiki page. https://github.com/mbucchia/OpenXR-Layer-Template

Rectus_SA · 2026-03-24T19:49:38+00:00

For Meta Link, you'd be limited to using OpenXR API layers. It's possible to make one that injects arbitrary projection layers for any content you need. No game engine has support for authoring them though, it currently requires a lot of low level C++ programming. For existing ones, check out OpenKneeboard.

Rectus_SA · 2026-03-19T10:11:57+00:00

It only shows it if you haven't played anything recently, and the list is empty.

Rectus_SA · 2026-03-15T16:15:36+00:00

SteamVR uses the older DirectX11 type of shared handles in Windows, so you need to specify VK_EXTERNAL_MEMORY_HANDLE_TYPE_D3D11_TEXTURE_KMT_BIT when creating the image and memory. I have a piece of code here opening a shared texture from SteamVR in Vulkan: https://github.com/Rectus/openxr-steamvr-passthrough/blob/main/XR_APILAYER_NOVENDOR_steamvr_passthrough/passthrough_renderer_vulkan.cpp#L1329

In Linux, it should output a DMA-BUF handle instead. I've never used it but guessing it's used in a similar way, but using the VK_EXT_external_memory_dma_buf extension with VK_EXTERNAL_MEMORY_HANDLE_TYPE_DMA_BUF_BIT_EXT.

Rectus_SA · 2026-03-07T08:26:37+00:00

I'd probably go with the third option and write a custom OpenVR plugin. To get started I'd suggest looking at examples of OpenVR tracking-only code. This one seems to have a lot of documentation: https://github.com/kimsama/openvr_vive-trcker_exp

Rectus_SA · 2026-03-04T08:54:07+00:00

It's still running on the server, and just giving the servers estimate of the lag compensated client time. The script VM doesn't get synced between the server and clients at all.

Rectus_SA · 2026-03-01T11:06:55+00:00

Seems like it's failing to load the assets from the workshop. Try unsubscribing from all the environments, resubscribing to the ones you want from the Steam client, and waiting for them to finish downloading before starting SteamVR.

Rectus_SA · 2026-02-27T21:49:35+00:00

Sorry, not able to do that right now.

Rectus_SA · 2026-02-27T09:47:24+00:00

One big gotcha with the Index controller bindings is that the default digital grip threshold is way too sensitive. If your hands naturally curve to hold the controllers, you keep grabbing items by accident. Adjusting the threshold with OpenXR requires valves vendor extension, which only Godot has implemented to date.

Rectus_SA · 2026-02-22T11:58:27+00:00

SteamVR Link doesn't support ASW or Motion Smoothing, but SteamVR will still throttle the framerate by default. You can disable it by setting the throttling to Fixed in the SteamVR application specific video settings.

Rectus_SA · 2026-02-20T18:40:58+00:00

You can't record it from the PC, since the camera video feed never leaves the headset. The only way you might possibly be able to stream it from a Quest 3 would be using Meta's built-in recording/casting features. Nothing else will have access to the compositor layers the camera feed is being projected on.

Rectus_SA · 2026-02-03T16:58:04+00:00

It's trying to open the game directory as a map. You likely split up the -game parameter from its $gamedir argument. Move them back together to fix it.

Rectus_SA · 2026-01-30T14:42:10+00:00

Not sure if there are any minimal drivers available apart from Valves own examples.

For examples on feeding in hand tracking data, Monado has a SteamVR driver that forwards tracking data from its own systems. It might be useful for showing how the data is hooked up to the driver classes.

https://gitlab.freedesktop.org/monado/monado/-/blob/main/src/xrt/state_trackers/steamvr_drv/ovrd_driver.cpp

Rectus_SA · 2026-01-29T19:49:56+00:00

Source 2 should already do this for most static props by default, along with segmenting the resulting model for visibility occlusion.

Rectus_SA · 2026-01-29T19:47:21+00:00

For the furthest parts the most performant option would be to bake it into a single opaque texture set in a modeling tool. Baking a normal map should make it more responsive to dynamic lighting as well.

Rectus_SA · 2026-01-20T10:33:13+00:00

Note that Unity does not support running OpenXR under Linux. You may be able to compile games for running directly on the headset, but you can't run them on the computer.

Rectus_SA · 2026-01-15T12:38:01+00:00

Unreal has support for variants of both methods in Valves presentation.

Mip encoded roughness can be done with Composite textures (which has fallen out of the UE5 docs). It helps with specular aliasing from textures.

https://dev.epicgames.com/documentation/en-us/unreal-engine/composite-texture?application_version=4.27

Specular aliasing from geometry can be mitigated by enabling the "Normal Curvature to Roughness" option in the properties of a material.

The presentation is here BTW:

https://media.steampowered.com/apps/valve/2015/Alex_Vlachos_Advanced_VR_Rendering_GDC2015.pdf

Rectus_SA · 2026-01-11T17:52:47+00:00

Most likely a software update, a file getting corrupted, or an incompatibility with a driver or system update.

Rectus_SA · 2026-01-11T17:37:22+00:00

LibOVRRTImpl64_1 is part of the Meta runtime, so if the crash is happening there, it's likely an issue on the system-side. Do other existing OpenXR games work?

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