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Thread: Stutter Fix

  1. #1
    Superkart Pilot
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    Stutter Fix

    If you suffer from weird stuttering, judder, stroboscope effect in turns when camera moves around quickly, here's the solution that worked for me.
    After trying everything to fix that annoyance I used same trick that worked in pCars1.
    1) Turn Vsync off in game
    2) Force Adaptive Vsync in video driver
    3) Add the following launch options in Steam game properties -fpscap 63
    (Also Try 62.8 see this post (#25), not 100% sure though if 62.8 vs 63 makes a difference, could be placebo, but it does look smoother, not worse for sure )

    You can even set prerendered frames to 1, it's still smooth and doesn't tax GPU as much plus eliminates input lag.

    Finally, butter smooth gameplay.

    P.S. It wouldn't help if your GPU can't keep up, only if you get that stuttering at otherwise stable 60fps.

    Click image for larger version. 

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    Last edited by Andrew_WOT; 04-10-2017 at 23:08.

  2. #2
    Superkart Pilot Kitt's Avatar
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    thanks will give this a go later...getting some crazy stuttering with i7 4790k and gtx 1080,thought it might be my HDD but if this fixes it I'll be well chuffed

  3. #3
    Superkart Pilot Kitt's Avatar
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    well that fixed it smooth as silk on high and ultra settings but why did it fix it? is there something wrong with my system? and putting in the launch options is some kind of bodge fix?
    The following 2 users likes this Post: Andrew_WOT, Sankyo


  4. #4
    WMD Member Maurice Boeschen's Avatar
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    Fixed it also for me (using -fpscap 100 as my monitor has 100 Hz).

    Strange that a FPS cap solves stuttering/jittering in corners.. But yes, now butter smooth
    | CPU: Intel Core i7-6700K @ 4.5 GHz @ 1.300 V @ NZXT Kraken X62 AiO Water Cooler | GPU: EVGA GTX 1080 FTW @ 2076/5500 MHz @ GeForce 390.77
    | Mobo: Asus Z170-Deluxe @ Bios 3703 | RAM: 4x4GB Corsair Vengeance LPX DDR4-2666 @ DDR4-2800 MHz @ 1.350 V (XMP)
    | PSU: Be Quiet! Dark Power Pro 11 850W
    | Sound: Creative X-Fi Titanium @ Edifier S550 Encore 5.1 Soundsystem
    | Monitor: Asus PG348Q 21:9 UltraWide G-Sync Monitor @ 3440x1440
    | OS: Windows 10 Pro x64

    | Wheel: CSW v2.5 Beta (USB, FW 317/018) | Pedals: CSP v3i (Base, FW 1.30) | Driver: 293
    | Tuning Menu: SEn: Aut | FF: 100 | SHo: OFF | AbS: OFF | drI: - 01 | For: 100 | SPr: OFF | dPr: OFF

    | FFB: Jack Spade Standard Low Comp DD SopDiff 100/45/45/10

    | Graphics: Texture Filtering: Aniso 16x | V-Sync: On -> G-Sync | MSAA: High | Reflections: High | E-Map: High | Car Details: Ultra | Track Details: Ultra | Pitcrew Details: All | Shadows: Ultra | Enhanced Mirrors: On | Motion Blur: Off | Pre-Rendered frames ahead: 1 | Detailed Gras: High | Particle Quality: High | Particle Density: Ultra

    WMD 1 & WMD 2 Member
    The following user likes this Post: Andrew_WOT


  5. #5
    Superkart Pilot
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    Quote Originally Posted by Kitt View Post
    thanks will give this a go later...getting some crazy stuttering with i7 4790k and gtx 1080,thought it might be my HDD but if this fixes it I'll be well chuffed
    Question to SMS, while 2 years later we still have to do that. I had this issue with GFX 980 on pCars1, now with 1080Ti on pCars2.
    The following user likes this Post: Kitt


  6. #6
    WMD Member RomKnight's Avatar
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    Andrew, I actaully just use v-sync (on triples). I leave it off for VR.

    PS: you using yesterdays' new nvidia drivers? There's support for pC2.
    ---
    My feedback is always on default setup unless stated otherwise. Auto-Clutch is OFF
    Still hoping for Estoril one day

    | CPU: i5 8600K@5GHz | GPU: MSI GTX1080 Gaming X 8GB (397.31) (OC: +70/+450) | Mobo: Asus Prime Z370-p
    | RAM: 2x8GB DDR4 GoodRam Iridium 2400Mhz | PSU: Corsair TX850M | OS: Win10 x64 | Sound: Onboard Realtek ACL887 | C:\>: Samsung 840 EVO 250GB
    [B]| Monitor:[/B] 3x IPS LG23EA63 @5760x1080 (Bezel Corrected) -- HTC VIVE

    | Wheel: CSWv2 + CSPv3(usb) + CSS SQv1.5 - (driver v310 - fw 455) | Damping: 100 | 900
    | In game: Deadzones: 0 |Sensitivity: 50 | Damping: 0
    | Wheel Profile: Sens: Aut | FF: 100 | SHo: 100 | ABS: 0 | Dri: OFF | For: 100 | Spr: 100 | Dpr: 100

    | FFB: RAW|Gain: 100 | Volume: 50 | Tone: 50 | FX: 50 [B]

    | Visual FX: Default except Interion Flare: Off
    | Performance - Aniso: 16x | MSAA: Medium | Vsync: Off | Grass: Low | Envmap/Reflections/Shadows: Low/medium/low | Car/Track: High | Blur: Off
    | E. Mirrors: Yes | Particles: High/High | SS: 1.2 | Sharpening Strength/Clamp: 0.6/0.045
    | Driving assists: ABS/TC, maybe - SC always OFF
    | CmdLine: -ffb600 -skipcrowds

  7. #7
    Superkart Pilot
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    Yes, 385.69.
    We had this very issue with pCars1 and Assetto Corsa had the same problem, something to do with frames timing. Similar solutions as well, in game fps cap just a bit over refresh rate and outside game VSync via driver.
    Kunos managed to fix it, guess SMS will do it in pCars3, hopefully.
    Last edited by Andrew_WOT; 23-09-2017 at 18:06.

  8. #8
    Moderator Sankyo's Avatar
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    Where do you see this stuttering? When driving, during replays, both?
    CPU i7 7700K | RAM Corsair 16GB 2400MHz | GPU Asus GTX1080 Ti OC 11GB | Mobo Asus Strix Z270H | Audio SB Zx @ 5.1/AKG K401 | OS Win 10 x64 | Screen LG 27EA63V-P 27" 1920x1080 | Controllers Fanatec CSW v2.5 + UH, CSP v3, CSS SQ, CSH | Misc TrackIR 4 Pro, Playseat Revolution, DS button box

    With the right to say what you think comes the obligation to think about what you say.
    I'd rather have questions that cannot be answered than answers that cannot be questioned - Richard Feynman
    Teach how to think, not what to think

  9. #9
    WMD Member Maurice Boeschen's Avatar
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    I had them only in some corners like the first 5 at Algarve. Setting the fps cap completely eliminated the stuttering/jittering.
    | CPU: Intel Core i7-6700K @ 4.5 GHz @ 1.300 V @ NZXT Kraken X62 AiO Water Cooler | GPU: EVGA GTX 1080 FTW @ 2076/5500 MHz @ GeForce 390.77
    | Mobo: Asus Z170-Deluxe @ Bios 3703 | RAM: 4x4GB Corsair Vengeance LPX DDR4-2666 @ DDR4-2800 MHz @ 1.350 V (XMP)
    | PSU: Be Quiet! Dark Power Pro 11 850W
    | Sound: Creative X-Fi Titanium @ Edifier S550 Encore 5.1 Soundsystem
    | Monitor: Asus PG348Q 21:9 UltraWide G-Sync Monitor @ 3440x1440
    | OS: Windows 10 Pro x64

    | Wheel: CSW v2.5 Beta (USB, FW 317/018) | Pedals: CSP v3i (Base, FW 1.30) | Driver: 293
    | Tuning Menu: SEn: Aut | FF: 100 | SHo: OFF | AbS: OFF | drI: - 01 | For: 100 | SPr: OFF | dPr: OFF

    | FFB: Jack Spade Standard Low Comp DD SopDiff 100/45/45/10

    | Graphics: Texture Filtering: Aniso 16x | V-Sync: On -> G-Sync | MSAA: High | Reflections: High | E-Map: High | Car Details: Ultra | Track Details: Ultra | Pitcrew Details: All | Shadows: Ultra | Enhanced Mirrors: On | Motion Blur: Off | Pre-Rendered frames ahead: 1 | Detailed Gras: High | Particle Quality: High | Particle Density: Ultra

    WMD 1 & WMD 2 Member

  10. #10
    Superkart Pilot
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    Driving.

    Replays are much worse.

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