What about clipping software?

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Coldblackice
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Joined: 30 Jul 2020, 02:17

What about clipping software?

Post by Coldblackice » 18 Dec 2024, 01:45

Is there a need to also apply Gsync/Vsync/Cap/etc settings via an NVCP profile to game clipping software (and their encoders)?

Using MedalTV to clip, my clips are looking sort of "strobey" despite having ample FPS + hardware specs + low resource utilizations. It's almost like the clipping software isn't in sync with the game/monitor Gsync/Vsync/Cap combo.

Should I be creating an NVCP profile for Medal (and it's encoder process, MedalEncoder.exe), forcing some combo of Vsync/Gsync/Cap/LatencyLimiter settings?


EDIT:
  • If I set Medal to clip at 120 FPS instead of 60 FPS, the clips look better, though slight strobing is still visible, not silky smooth like the gameplay.
  • The strobing is steady and consistent, not variable, which is why it seems more like an out-of-sync issue vs. resource starvation
  • The clips themselves are output at 60 or 120 FPS, as their media properties report
  • I'm confident this isn't a low resource or high utilization issue, as more than enough is available for the game + Medal running on a 7950X3D + 3080 combo. I also see neither CPU or GPU come close to their utilization ceilings while playing/clipping.
  • Medal is clipping via its "Game-Record" mode, which utilizes UWP to hook game output directly vs. screen-recording.
  • Specs:
    • Dell 32" 165Hz 1440p monitor
    • Nvidia 3080 GPU
    • 7950X3D CPU
    • Monitor's + NVCP G-sync: Enabled
    • Game: Rust
      • Rust in-game FPS cap: 161 (monitor sometimes reports it's 164Hz, other times 165Hz, so I do -3 on the lesser 164Hz)
      • Rust in-game setting: V-sync enabled
      • Rust in-game setting: Nvidia Reflex/boost enabled

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RealNC
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Re: What about clipping software?

Post by RealNC » 18 Dec 2024, 11:36

If your FPS doesn't exactly match the FPS of the video, it's not gonna look smooth. If you record 60FPS videos, the game needs to run at 60FPS.

If the capture software is really good and has very precise capture timing, you can get away with exact integer multiples. Like play at exactly 120FPS and record at 60FPS. But usually the capture software is not that precise and will pick the wrong frame from time to time, resulting in "hiccups."

Also keep in mind that if you use nvenc to encode the video, Nvidia's video encoder hardware runs off the GPU clock. That means you should force high performance in the nvidia control panel for the capture software to prevent the GPU from clocking down, since that can introduce stutter in the encoded video.
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