search

LibreVR / Revive

Play Oculus-exclusive games on the HTC Vive or Valve Index, scroll down for downloads and installation instructions.
Other
3.63k stars 333 forks source link

Stormland stutter / won't launch #1808

Closed therealcharmics closed 1 year ago

therealcharmics commented 1 year ago

I am aware that there are other similar issues but I find them to be different in notable ways, or their descriptions are wholly insufficient. Hopefully this will be more helpful.

I have a WMR Samsung Odyssey and latest SteamVR and WMR for SteamVR. I have an Nvidia 2080s with the latest drivers. Windows 10 Pro 21H2 19044.2604. I do not use virtual desktop or any other layers. I do have MSI Afterburner, FPSVR (steamapp), and OVR Advanced Settings.

CrossVR commented 1 year ago

Try this build once it finishes compiling: https://ci.appveyor.com/project/LibreVR/revive/builds/46504632/artifacts

therealcharmics commented 1 year ago

Thank you for the quick response!

OpenXR still isn't working for me on this build, but running without it through SteamVR does work, and reprojection is operating beautifully!

However, the performance characteristics are very unusual. According to FPSVR, the GPU frametimes are generally a bit better and more consistent than they were with ReVive 2.1.1. However, overall performance has been just about cut in half, as the CPU frametimes have gone up from about 6ms to nearly 20ms for each frame. The game is running at about 46 FPS, which is verified by MSI Afterburner on the overlay as well as by watching motion within the world.

Additional note: I checked GPU and CPU utilization. My 2080S is working at about 55% utilization, which lines up with my framerate. My CPU is a 3700x, and it's (somewhat unsurprisingly) barely being pushed. None of the cores show high utilization, but with modern windows scheduling, I am not confident saying that it's not a single threaded bottleneck somewhere. It almost seems like the game is intentionally waiting to reproject every other frame.

CrossVR commented 1 year ago

Can you try out this build on SteamVR? https://ci.appveyor.com/project/LibreVR/revive/builds/46514397/artifacts

therealcharmics commented 1 year ago

Beautiful. Performance is better and more stable than any other version I've tried, with no strange CPU behavior and relatively stable frametimes. Reprojection is working perfectly as well. I was able to switch from running at lowest to running at ultra, and I'm still getting over 90FPS most of the time.

Snap turning and fast movement causes longer frametimes, but I believe its safe to say that's normal game behavior, as they are not exceptionally high and reprojection smooths them over beautifully.

On behalf of the WMR community, thank you!

CrossVR commented 1 year ago

That's still just a test though, it might crash on other games. However it's good to know that there's still some CPU optimizations to be made in the frame syncing behavior.

therealcharmics commented 1 year ago

Ah, maybe? The frametime spikes while moving and snap turning are reported as on the GPU side by FPSVR. (I failed to specific previously.)

CPU wise, the frametimes seem to be consistently under 10ms. It's possible they could be better, but I don't see evidence of it with this latest test.

Edit: I only plan on playing this game for the forseeable future, but I have a friend with an Index who I could ask to test this build out, if you'd like. He's expressed interest as his performance has been not great in Stormland. He does have other Oculus games, and I might be able to twist his arm to launch them with this build.

CrossVR commented 1 year ago

Better to wait until the next proper release once I figure out the correct frame sync behavior.