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65 lines
2.7 KiB
Markdown
65 lines
2.7 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 lets you run OpenXR applications on a computer and display them on a standalone headset.
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It's very similar in purpose to [Monado](/docs/fossvr/monado/), but for standalone VR headsets.
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Should you utilize [Envision](/docs/fossvr/envision/) for WiVRn setup, please ensure your APK and WiVRn server match as closely as possible. Check the WiVRn github [actions](https://github.com/WiVRn/WiVRn/actions) for an APK matching your server build to install to your 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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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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(Setting TCP-only mode via config is no longer required as of WiVRn 0.19)
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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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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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