server: Fix frame drops in SteamVR/Windows #1190

New Issue

MrUnknownDE · 2026-04-06T08:45:00+02:00

MrUnknownDE commented

2026-04-06 08:45:00 +02:00

Originally created by @0forks on 2/24/2023

The named pipe thread currently has a 5ms sleep, which leads to inconsistent tracker position updates (drops about half of the frames). This PR improves message timing consistency for OpenVR trackers on Windows by waiting for a data ready event, and runs an update as soon as the HMD position frame is received from the driver.

Comparison before and after:

frametimes.webm

*Originally created by @0forks on 2/24/2023* The named pipe thread currently has a 5ms sleep, which leads to inconsistent tracker position updates (drops about half of the frames). This PR improves message timing consistency for OpenVR trackers on Windows by waiting for a data ready event, and runs an update as soon as the HMD position frame is received from the driver. Comparison before and after: [frametimes.webm](https://user-images.githubusercontent.com/114709761/221206830-a52744c8-bd63-41aa-a93e-101bdb441e17.webm)

MrUnknownDE closed this issue

2026-04-06 08:45:00 +02:00

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dependabot/github_actions/gradle/actions-6

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dependabot/github_actions/actions/upload-artifact-7

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FloorClipSteamLinkInteractionFix

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Reference: github/SlimeVR-Server#1190