Question / Help Odd lag in Game Capture, less so in Window Capture - Any reason?

Tolakram

New Member
Logs:

https://obsproject.com/logs/ZOB_U9ZlyobMMwM0

Resulting video. I combined the two, window capture is first, game capture (any fullscreen) is second.


In the first scene you'll notice some jitter when it starts off then it goes smooth. I think this was just a startup issue. In the second scene, game capture, the jitter is there the entire time and worse there's some kind of distortion where part of the frame gets drawn in the wrong place (best guess).

Any idea what could be causing this? I didn't show Display capture but it's somewhere in between the two, and still displays some of the frame distortion.

Mark
 

Tolakram

New Member
One bump since I'm already on page 2. I gather no one knows what the issue might be? Maybe a bug in Game Capture?
 

orboe

Member
Your post has only been up for 15 hours. This forum is community driven. Can not alway expect immediate responses.

That being said, please enable game mode. In the newest version of Windows (which you have) it runs better with it.
Source: https://obsproject.com/wiki/How-to-disable-Windows-10-Gaming-Features

Secondly, try following this guide for new nvenc to get your settings in a good place.

https://www.geforce.com/whats-new/guides/broadcasting-guide

After those two things, please do another test and post the log from said test. screenshots of the properties window for both your game capture and window capture settings would also help.
 
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Tolakram

New Member
I appreciate you trying to help but this doesn't have anything to do with NVENC. All the encoding settings are in the log file. :)

https://obsproject.com/logs/YfJj2x6VLCmhMbmS

Here's the log using x264 encoder. No dropped frames, jitter is the same, game capture is bad, window capture is good. I tried turning game mode on and nothing changed.

The only reason I made a video was to show the artifacts.
 

orboe

Member
Regardless if it seemed to help in the one instance, it is still best practice when on the newest windows 10 update to have game mode enabled with dvr and game bar disabled. Which you do not have game mode enabled with the x264 log.

I mentioned the article because you have psycho visual turning turned off in the log.

"Psycho Visual Tuning: Checked. This enables the Rate Distortion Optimization in the encoder, which greatly optimizes the way you use bitrate, improving image quality on movement."

You also did not post screenshots of the two property setting windows I asked for to understand how you have the two captures configured. Also, is this a problem with all games or this one game? And what is this game?

Looking forward to your response.
 

Tolakram

New Member
Regardless if it seemed to help in the one instance, it is still best practice when on the newest windows 10 update to have game mode enabled with dvr and game bar disabled. Which you do not have game mode enabled with the x264 log.

I mentioned the article because you have psycho visual turning turned off in the log.

"Psycho Visual Tuning: Checked. This enables the Rate Distortion Optimization in the encoder, which greatly optimizes the way you use bitrate, improving image quality on movement."

You also did not post screenshots of the two property setting windows I asked for to understand how you have the two captures configured. Also, is this a problem with all games or this one game? And what is this game?

Looking forward to your response.

All games, just shows up best in RimWorld.

In either case, my logs are clean, this problem is not showing up in any log, game mode on or off. What is it you're looking for anyway? OBS is not that complicated, I've been using it successfully for years. This problem is new, but unfortunately so is my hardware, so I'm at a loss to figure out where in the pipeline there might be an issue. I even deleted ALL unused scenes and sources just to be sure something not displayed was creating this glitching.

Here are the property pages. Audio is all 360, replay buffer is off.

Just to add a little extra, NVENC is not the be all end all for encoders. While it's awesome to use for games that use a lot of CPU, the picture is still not quite as good as x264 at any bitrate. The latest version seems to be reducing some color depth, probably for the sake of speed. Very hard to notice, but it's there in the shadows (left NVENC, right x264). I have Psycho Visual Tuning turned off on purpose, otherwise it tends to overload the encoder in one of the games I record.


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