Possible play game in v-sync 75Hz but recording in 60fps ??

[chick3nman]

Hi all. My question is as shown in the title .. i have a 75Hz refresh rate monitor and i had try to play game with v-sync ON but record it in 60fps to match Youtube max fps allow but the video don't look as smooth .. so is it any way to do that or i must change the refresh rate down to 60Hz every time i do recording ??

Thanks first.

 

[FerretBomb]

You can do it, but likely will get subtle judder due to frame pacing. If you can run at 120hz it will be less noticeable, as OBS could then just take every other frame. With 75hz, it has to take a few, skip one, take a few more... and there's no guarantee that this 'hitch' will happen after the same number of frames each time (though in this case it would take 4 frames, then skip 1).

The only way to avoid this is to either play at a full integer multiplier of your final framerate, or to use interpolation smoothing, which OBS does not perform. But you COULD record at 75fps and then convert down in your video editor. It likely will come with a quality loss though, as frame interpolation isn't magic, just computed guessing at what the frame should look like.

Really though, just play at 60fps.

 

[chick3nman]

You can do it, but likely will get subtle judder due to frame pacing. If you can run at 120hz it will be less noticeable, as OBS could then just take every other frame. With 75hz, it has to take a few, skip one, take a few more... and there's no guarantee that this 'hitch' will happen after the same number of frames each time (though in this case it would take 4 frames, then skip 1).

The only way to avoid this is to either play at a full integer multiplier of your final framerate, or to use interpolation smoothing, which OBS does not perform. But you COULD record at 75fps and then convert down in your video editor. It likely will come with a quality loss though, as frame interpolation isn't magic, just computed guessing at what the frame should look like.

Really though, just play at 60fps.

Hi. Thanks for your reply. I did try 2 method such as [1] V-sync ON (75Hz) for smoother gameplay and record at 75Hz and then convert it to 60fps using video editor [2] V-sync ON (75Hz) but record at 60Hz and both result video looks something wrong, feel like the video lagging or skipping something in between.

So is that mean i have to always turn it back to 60Hz for 60fps recording even if my system is capable to play 144fps gamplay ??

Thanks again.

 

[FerretBomb]

Hi. Thanks for your reply. I did try 2 method such as [1] V-sync ON (75Hz) for smoother gameplay and record at 75Hz and then convert it to 60fps using video editor [2] V-sync ON (75Hz) but record at 60Hz and both result video looks something wrong, feel like the video lagging or skipping something in between.

So is that mean i have to always turn it back to 60Hz for 60fps recording even if my system is capable to play 144fps gamplay ??

Thanks again.

Correct. It is a frame pacing issue. If you have a 144hz monitor, you can try running it at 120fps instead. The difference between 120 and 144 should be imperceptible, but allow the recorded video to follow smooth frame pacing with a 2:1 pulldown.

 

[chick3nman]

Correct. It is a frame pacing issue. If you have a 144hz monitor, you can try running it at 120fps instead. The difference between 120 and 144 should be imperceptible, but allow the recorded video to follow smooth frame pacing with a 2:1 pulldown.

Understood. Thanks for your time. Take care.

 

[chick3nman]

For the past few hours I can't help asking myself how those people manage to play their over 100fps +- benchmarking gameplay video without any weird issue after upload to Youtube 60fps format so i do another test again (75Hz monitor refresh rate / record in 60fps) but this time with Vsync "OFF" and guess what .. the result is just satisfying :)

 

[chick3nman]

Looks like play 60fps and record 60fps is the best method so far regardless V-sync On or Off, play 75fps record 60fps with V-sync Off is ok but still not as smooth as 60fps all the way .. will do more experiment on this ..