I have a couple of questions about async spacewarp (ASW). It seems from my testings (which could still be flawed) that ASW is enabled and will run once the app frame time goes past a certain threshold. After that if the headset is continuously in motion, it seems to remain on (my framerate seems locked at 45 at that point, even though my application frame time is around ~7ms), and once I stopped moving it a lot, it will then turn off (frame rate goes back up to 90). Is that correct? And is there a way to disable ASW for testing, whether registry or whatever?
ASW is used to synthesize frames when the framerate drops below the refresh rate (on Rift, 90Hz). This will automatically drop the game to 45fps and generate the "in-between" frames using head-tracking data so head movements will still appear relatively smooth even at this "low" fps. There used to be developer hotkeys to switch ASW on and off but I'm not sure if that's still supported.
As I understand it, there is some fundamental issue with the display system in Windows 7 that means they can't get it to work optimally, or at all. I got the impression it wasn't something Oculus intended to spend any resources trying to work around, so I presume if you want ASW, you're forced to move up to Win 10 (or 8).
I can't find Oculus entries in registry (https://pbs.twimg.com/media/CuHpdvMUAAAY9_i.jpg:large) anymore, so not sure if there are new ways to disable it?
Also is my theory about how ASW works above accurate? i.e. once it's on, it stays on until your head movement slows down; just trying to explain why my frame rate is stuck is 45 after a frame drop was encountered like hundreds of frames ago.
Hi, still no word on how to disable ASW on windows 10? Or at least modify how it works? So it doesn't stay on once it's on unless I stop moving headset below certain threshold?
Hi, still no word on how to disable ASW on windows 10? Or at least modify how it works? So it doesn't stay on once it's on unless I stop moving headset below certain threshold?
Thanks
It shouldn't stay on, that's not how it is supposed to work. And have you tried Ctrl+ num1, 2 etc?
Have you tried the Oculus tray tool, it has an option to switch off ASW.
