@mbucchia (anyone) - If I cannot hold a constant 90fps but can always get more than 45fps, why do I get better/smoother performance running unlocked frames compared to locking to 45fps with OpenXR Toolkit with Motion Reprojection disabled?
someone can correct me but afaik motion reprojection is kind of a jerry rig in the game from what i’ve read.
Or something. Something about MR and MR + Depth i think the game cannot do very well and causes a performance hit.
We don’t have a lot of information however. What headset, what computer specs, what are your game and OpenXR settings etc…
Huh?
How about more FPS = better experience?
Really not sure how the question makes sense.
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I guess he means, that with locking framerate of 45fps you would expect “more fps” (smooth gameplay) instead of unlocked, because of freeing up hardware resources. And the recommendation is unlocked. And his question is why that is so?
My question was clear in my head, I think my fingers failed me…
TGMotorist was correct, If I can’t hold 90fps but can always get more than 45fps, I would expect smoother gameplay without MR by locking to 45fps but that doesn’t seem to work. And running unlocked is smoother. Except when flying over heavier hitting areas where it then becomes juddery and stuttery flying unlocked.
I might be fighting a losing battle but would love to find settings in VR that just work and are smooth everywhere - and I thought locking to 45fps would be it but it’s not.
Hopefully this will help. Here is a test i did. Flew a discovery flight around Tahiti with MR off was getting 55 fps. Good fps for a 3080. but could see micro studders. Now i turn on MR in the toolkit lock it at 45 fps. Now with it off i maintained 55fps so a 10 fps overhead. so with MR on and locked at 45 fps i can maintain the 45fps and not drop below the 45fps. When it does drop below the 45fps thats where i saw the wobble and artifacts occur. So lets say your flying around NYC and getting 35 to 40 fps there without MR. Try locking it at 30fps and see what happens. or set MR in toolkit to default and which will use the open xr for windows mixed reality MR
45FPs locked by what, what HMD? Raw FPS makes most thing look smoother, but when objects are closer and such you may notice the judder. both low FPS and judder look bad. It’s subjective. Locking the FPS literally says hey show me a flip-book that portrays the scene at a steady pace - no judder. But then you have a flip-book (ghosting). Generally you want locked FPS just so motion smoothing can simply fill in the missing frames and you can call it as good as you can get (with artifacting as motion smoothing is not perfect). If you asking: how can I get a perfect experience with a PC on a 90hz HMD the sad answer with MSFS is to run it in postage-stamp resolution with no frills on the VR menu. The fact is MSFS = <90FPS for most good resolutions or graphics options. FPS locking (whatever method or software you use) without motion smoothing is for people that hate judder much more than they hate ghosting (that’s me). But others prefer every god forsaken frame their PC can offer at the cost of smoothness. It’s fair to prefer one over the other - no judging. Motion smoothing simply tries to bridge the two and may have a cost of it’s own (usually a few FPS). So if you get 50-90FPS generally Lock your FPS and let motion smoothing do the rest. For some HMDs (Pimax) Motion smoothing is often broken because of their insistence on using dynamic motion smoothing that tries to insert up to two frames (30FPS—>90fps). Unfortunately the transition, threshold and artifacting are each terrible on Pimax at least - (ruining the experience altogether). Hope that helps.