Grey screen when only 1 base station is tracking

[Jan-Huber]

Hey I tried using your driver with the Pimax Dream Air and ran into the following issue:

For my tracking I'm using 2 original 1.0 HTC Vive base stations. When the headset is rotated so that it is only tracked by a single base station the video cuts out and the screen turns grey. This only occurs with your driver, not the Pimax original one. It also doesn't matter, which base station is occluded, both have the same issue.

This results in a tiny play area for me, because instead of having both stations for tracking, the headset needs to stay within their cross section.
Any idea what might be causing this?

sboys3 driver 1.2.0-beta.0
Pimax play 1.44.1
SteamVR beta 2.16.6
Nvidia 610.47

[sboys3]

The Dream Air is rather finicky with 1.0 stations. For me, I need to stand back at least three meters from the base station and wave the headset around in a large circle to even begin tracking. There's a chance if you do a similar thing to get it locked onto the base stations, your problem will go away. I do also wonder if the lighthouse driver has degraded over time. Because the one included within Pimax Play is from 2019 and seems to have slightly different tracking characteristics.

There is a chance you could add "forceTracking": true to the root of settings.json in AppData\Roaming\CustomHeadset\ in order to make it less likely to gray screen. Make sure to correctly put a comma in the json.

[Jan-Huber]

This actually fixed the issue mostly. There is only a small jitter left when transitioning from dual to mono tracking, but it keeps displaying 👍
Maybe you want to expose this setting in the general tab?

My 2.0 base stations are in the mail, but I'm pretty sure someone will run into this again down the line.

[sboys3]

Ok, I guess Pimax Play may be ignoring when the lighthouse diver says that the tracking is unreliable and continues to track the headset in a similar way to how forceTracking makes SteamVR ignore it. SteamVR is quick to grey out the screen to prevent motion sickness. I will expose the config option to the GUI as it has some legitimate use. The downside of the option is that when things, including controllers and headsets, actually loose tracking they snap back to the origin.

[mbucchia]

Ok, I guess Pimax Play may be ignoring when the lighthouse diver says that the tracking is unreliable and continues to track the headset in a similar way to how forceTracking makes SteamVR ignore it.

Yes, this is my observation as well (using an 8KX). Pimax Play is super lenient and will still return that the headset is tracked, while driver_lighthouse fades out quickly.