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89 lines
3.9 KiB
Markdown
89 lines
3.9 KiB
Markdown
---
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weight: 50
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title: WiVRn
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---
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# WiVRn
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- [WiVRn GitHub repository](https://github.com/WiVRn/WiVRn)
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> WiVRn wirelessly connects a standalone VR headset to a Linux computer. You can then play PCVR games on the headset while processing is done on the computer.
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WiVRn is based on [Monado](/docs/fossvr/monado/) and can be used with [OpenComposite](/docs/fossvr/opencomposite/) to support a majority of titles available for SteamVR. A wide range of standalone headsets are supported.
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## Installing WiVRn
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We recommend using [Envision](/docs/fossvr/envision/) to install and launch WiVRn & OpenComposite. Envision will handle all configuration seamlessly and avoids many of the pitfalls of a manual setup.
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Alternatively, you can use the [WiVRn Flatpak](https://flathub.org/apps/io.github.wivrn.wivrn) which includes OpenComposite as part of it. Processes in flatpak cannot take advantage of setcap, and so your performance may suffer when compared to Envision.
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## General WiVRn Notes
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WiVRn uses Avahi for network discovery. Ensure it is running with the following terminal command:
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```bash
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systemctl enable --now avahi-daemon
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```
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(If Avahi is not available, the IP address of the server must be entered into the client.)
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If a firewall is installed, make sure ports 5353/UDP and 9757/UDP+TCP are open for Avahi and WiVRn itself, respectively.
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If using Nvidia proprietary drivers, have [Monado Vulkan Layers](https://gitlab.freedesktop.org/monado/utilities/vulkan-layers) installed, otherwise games will crash with a segmentation fault.
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For audio in WiVRn, you will need to assign applications, or the system as a whole, to output audio to the virtual output "WiVRn" which is created upon connection between the server and the headset.
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## Wired WiVRn
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Use WiVRn with a cable instead of Wifi. Use a 5Gbps cable & port at the very least.
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WiVRn version: 0.19+
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Using Envision:
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- Connect the headset via USB
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- Click the `Start WiVRn Client (Wired)` button in Envision.
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- If it's not there, an Envision update might be necessary.
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Manual steps:
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- Connect the headset via USB
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- If WiVRn is running on the headset, close it now.
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- While in the system lobby of the headset, run the following `adb` commands on the PC:
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```bash
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adb reverse tcp:9757 tcp:9757
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adb shell am start -a android.intent.action.VIEW -d "wivrn+tcp://127.0.0.1" org.meumeu.wivrn
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```
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## WiVRn + Lighthouse driver
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This section covers using WiVRn with any lighthouse-tracked device: Index/Vive controllers, Vive/Tundra trackers, etc.
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WiVRn version: 0.19+
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Have SteamVR installed (no need to run it).
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In Envision, set WiVRn Profile as such:
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- XR Service CMake Flags:
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- `WIVRN_FEATURE_STEAMVR_LIGHTHOUSE=ON`
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- Environment Variables:
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- `WIVRN_USE_STEAMVR_LH=1`
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- `LH_DISCOVER_WAIT_MS=6000`
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Perform a **Clean Build** after changing the CMake flags!
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If not using Envision, simply pass `-DWIVRN_FEATURE_STEAMVR_LIGHTHOUSE=ON` to cmake and export the env variables before starting `wivrn-server`.
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[Motoc](/docs/fossvr/motoc/) will be used to calibrate the two tracking technologies to work together.
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Discovery happens only on first connection, so be sure to **have all lighthouse devices powered on and in line of sight of base stations before connecting the headset!**
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Once a device is discovered, it may be powered off and then back on later.
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Once video appears in the headset, check `motoc monitor` to make sure your devices all show up.
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If one or more devices are missing, try:
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- Spread the devices out more; lighthouse devices get discovered quicker if they're not piled up on each other. Simply strapping them on is good, too.
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- Increase `LH_DISCOVER_WAIT_MS`, though this delays the client on first connection.
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To re-discover devices, restart WiVRn server.
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At this point, your lighthouse devices will be randomly floating about somewhere. To calibrate them, follow the guide in the [Motoc README](https://github.com/galister/motoc/blob/main/README.md).
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