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Terrible performance in VR in rain and night conditions

Discussion in 'Automobilista 2 - Help & Support' started by Alejandro Lopez, May 21, 2021.

  1. 2ndLastJedi

    2ndLastJedi Free speech matters AMS2 Club Member

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    With FSR working on both AMD and nVidia I hope Reiza will add it to help AMS2 with these performance issues.
     
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  2. doclucio

    doclucio New Member

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    hi guys, alejandro is perfectly right, same conditions and settings in vr on some track work perfectly, in some others is a mess, no matter what you do.hockenheim is a perfect example, really think is a matter of bad optimization
     
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  3. Rob Davies

    Rob Davies Bobby Dazzler AMS2 Club Member

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    I can't say whether it's worse since update or not, but there's a huge delta in performance in VR/G2 for dry vs. fog/rain/night... I recall having to drop SS% by 10% or so previously, but some tracks are far worse than others and have to go to 50% now (might as well use my Q2 :) ) .... the new DLC tracks are more demanding than any others I've tried, so perhaps there's a 'performance pass' to do on them, which is something I've seen Reiza do on existing tracks over the past year.
     
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  4. Xblurone

    Xblurone Member AMS2 Club Member

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    Lighting from behind is a gpu killer. Set shadows to low and reflections to medium at max for rain / darkness. My 2080ti OC can keep up in the worst of situations but I run Quest 2 on VR and set the FOV-Tangent multiplier to 0.75 ; 0.5 to severely reduce the number of pixels needing to be calculated without quality reduction (max resolution and in-game supersampling to 1.3 - MSAA low). Field of view is like in a helmet that way.
     
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  5. Rob Davies

    Rob Davies Bobby Dazzler AMS2 Club Member

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    If it helps G2/WMR users, I got about 20% improvement last night moving to latest SteamVR / Windows Mixed Reality for SteamVR betas.
     
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  6. Rob Davies

    Rob Davies Bobby Dazzler AMS2 Club Member

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    Also I discovered turning HAGS off (control panel->graphics settings) made a big improvement in the variability of FPS in VR across the same track. Much better.
     

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  7. F1Aussie

    F1Aussie Well-Known Member AMS2 Club Member

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    And replays are a big killer, last night had it drop to 48fps at one stage watching first few corners and this is on a single screen. Definitely some work needs doing there.
     
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  8. 2ndLastJedi

    2ndLastJedi Free speech matters AMS2 Club Member

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    Yeah but you don't have a great PC or anything...maybe think about an upgrade :p
     
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  9. F1Aussie

    F1Aussie Well-Known Member AMS2 Club Member

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    Yeah, righto, what do you suggest? :p:D
     
  10. 2ndLastJedi

    2ndLastJedi Free speech matters AMS2 Club Member

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    I suggest we swap PC's :whistle:
     
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  11. F1Aussie

    F1Aussie Well-Known Member AMS2 Club Member

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    Lol, nice try.
     
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  12. Guilherme Bencke

    Guilherme Bencke New Member

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    Maybe a NASA supercomputer will run rain sessions at 90fps in VR
     
    Last edited: Jun 28, 2021
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  13. sampopel

    sampopel Active Member AMS2 Club Member

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    delete
     
    Last edited: Jul 4, 2021
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  14. Nupol

    Nupol New Member

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    Just finished tweaking the settings. Made so much tests... And I can also confirm that in VR performance tanks if it's dawn, night and wet with reflections!
    19:00 at dawn fps tanks (doesnt matter if shadows are off) if it's getting dark instant fps tank.
    please REIZA fix this.
     
  15. Remco Hitman

    Remco Hitman Member

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    Ah I see more people are having this issue since V1.3. My CPU can't maintain the frametimes now eventhough it's at 23% occupancy. Not just my system then.
     
  16. Nupol

    Nupol New Member

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    just want to remind REIZA of their statment on AMS2 Website:


    ACCESSIBLE VISUAL REALISM

    Automobilista 2 combines world-class graphics with optimized performance to offer glorious visuals even on less-powerful systems, and one of the best VR experiences of any racing game


    X doubt

    please fix Reiza i want to drive in rain / night / dawn in VR so badly
     
    Last edited: Dec 24, 2021
  17. Remco Hitman

    Remco Hitman Member

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    Has anyone tried these conditions with shadow detail OFF? I did more testing and with no shadows there is no issue at all. But even shadows on LOW introduce CPU lagging which causes high frametimes. I bet this has something to do with the new way of rendering shadows because it used to be so much better.
     
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  18. Nupol

    Nupol New Member

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    As I already wrote I also did test many scenarios with shadows off. The fps tanks aswell. I tried hockenheim 19:00 partly cloudy / clear and if it's getting dark fps is down even with shadows off.
     
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  19. BazzaLB

    BazzaLB Well-Known Member

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    Yep, I ran a similar test. Nurburgring Veedol, 18:00 (low sun but not quite low enough to trigger the frame rate drop). Field of 21 cars (GT3), started mid pack. Most settings High/Ultra, with Grass OFF, MSAA Medium. I get a full 90 FPS no problems (do not run motion smoothing). SteamVR SS 130%. Vive Pro.

    I then try the same race just 1 hour later and BAM, stutter/reprojection. I even tried with all settings Low and I still get stutter (reprojection) which seems rather odd given it was just 1 hour later. There is a time when the frame rate takes a complete nose dive and settings seem to make very little difference to recovering the frame rate. Same happens if I use weather that is Medium rain or worse (Light rain has absolutely no issues).

    Funny thing is if I use a car that has no headlights (Sprint car for example), I get no issues which is why I thought it had something to do with headlights but I have no real clue any more.
     
  20. Nupol

    Nupol New Member

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    Guess the non montly subscription king of VR racing has fallen. What a shame..
     

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