Question / Help 60fps to 30fps not fluid
- Thread starter asoares
- Start date
Can you post your log? (Here's how)
Here is the log:
https://gist.github.com/d75aa6955df9288c1bca
I just made this video to show the problem. Its very clear on Killzone Shadow Fall.
http://www.twitch.tv/freeman29pt/b/550899208
I turned 30fps lock at 30 second on that video, and the image improved, more fluid.
I have SLI, but I always disable when I'm streaming.
https://gist.github.com/d75aa6955df9288c1bca
I just made this video to show the problem. Its very clear on Killzone Shadow Fall.
http://www.twitch.tv/freeman29pt/b/550899208
I turned 30fps lock at 30 second on that video, and the image improved, more fluid.
I have SLI, but I always disable when I'm streaming.
to me when you locked to 30 fps it looked a bit choppier tbh
are you running obs with a changed process priority? if not try using above normal or even high and see if that changes anything. also the twitch flashplayer for recorded broadcasts is sometimes even worse so to be 100% sure you have to local record your tests and see if theres any difference
are you running obs with a changed process priority? if not try using above normal or even high and see if that changes anything. also the twitch flashplayer for recorded broadcasts is sometimes even worse so to be 100% sure you have to local record your tests and see if theres any difference
Jack0r
The Helping Squad
Same here. The first 30 seconds look really smooth until you go into the menu :)
This. It will cause weird stuttering, much like I'm seeing in the video op posted.
I always put on normal. I tested diferent priorities and the result is the same.
I disagree, it is notorious that after blocking for 30fps motion is more fluid. See the initial part of the video, it seems that the image has jumps.
Tested with other games, with The Crew, Rage etc etc etc, and the same happens in all of them. In games with more than 30fps OBS does not encode a fluid picture, even in local recordings.
Hopewithinchaos
Forum Moderator
Think of it this way. Streaming a 60 FPS game at 30 FPS, you're rendering half the frames. It's not going to look smooth.
The problem is not that. What actually happens is that a game running at 30fps and streaming at 30fps is more fluid than a game running at 60fps and streaming at 30fps.
OBS has problems when encoding a game that runs at 60fps to 30fps, that's obvious. The fluidity of the picture is worse when compared to the image obtained on games that run at the same resolution that we are streaming.
Playing at 60fps and streaming at 30fps has worse image then playing at 30fps and streaming at 30fps.
So, this may seem a somewhat strange thing, and you may think that this is OBS. However, that would be incorrect - OBS itself is doing nothing different when you change the settings in your game from 30 to 60fps, because that's completely separate from OBS.
So, if it's not 'perfectly' smooth in this particular game, what is it then?
OBS is a video mixer that runs on your GPU, often along with the game. The most likely reasoning behind this is because the game is simply using more GPU processing power than average (either due to its pipeline or due to some graphical setting the game has), and it doubles that when you switch to 60fps, and it's most likely eating in to OBS' performance. This doesn't normally happen from my experience, it really often depends on the game and system, though your system is pretty good, so I wouldn't know for 100% sure without tests.
Regardless, OBS itself hasn't changed when you change your game settings -- the game has, as well as what's happening on the GPU.
Things like heavy anti-aliasing and post-process effects may affect this, because they can increase fillrate dramatically. I would recommend messing with the game's graphical settings and see if any of those things affect it. If this is really affecting OBS in this case, then it definitely depends on what the game is doing in its rendering pipeline.
So, if it's not 'perfectly' smooth in this particular game, what is it then?
OBS is a video mixer that runs on your GPU, often along with the game. The most likely reasoning behind this is because the game is simply using more GPU processing power than average (either due to its pipeline or due to some graphical setting the game has), and it doubles that when you switch to 60fps, and it's most likely eating in to OBS' performance. This doesn't normally happen from my experience, it really often depends on the game and system, though your system is pretty good, so I wouldn't know for 100% sure without tests.
Regardless, OBS itself hasn't changed when you change your game settings -- the game has, as well as what's happening on the GPU.
Things like heavy anti-aliasing and post-process effects may affect this, because they can increase fillrate dramatically. I would recommend messing with the game's graphical settings and see if any of those things affect it. If this is really affecting OBS in this case, then it definitely depends on what the game is doing in its rendering pipeline.
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FerretBomb
Active Member
Then what are you using to ingest the video? Sounds like your capture card is screwing up at anything more than 30fps, in that case.
I have two capture cards and the result is the same in both. Blackmagic Intensity Pro and AVerMedia ExtremeCap U3.
I think we miss the point. What I'm trying to say is that a game is more fluid when it runs at the same frame rate as OBS transmition.
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