Render Scene With CPU To Avoid Lags?

[Schauerland]

So, i know me and some other people habe problems with the scene rendering / (rendering lags/stalls)

it seems that rendering drops frames if the scene is larger than 1920x1080 (i have a 1440p monitor so my scene is 2560x1440)

now if the gpu is fully stressed BUT the ingame fps is still 60fps the scene render starts dropping frames.
this results in a smooth gameplay and a non-smooth recording (there are no encoding lags)
this gets even worst when i use nvenc to encode - whatever
i have no rendering lags when the scene is 1920x1080 even if i use the same ingame settings (1440p and so on)

other recording tools can then still record smoothly (because they dont have to render a scene - just encode the captured frames, i understand that)

- the question is how can this be improved (can this even be improved)?
my first though was an option to render the scene via cpu but i think the scene render process is so deeply in the code that you cant extract it and render it via cpu?

any other ideas?

 

[c3r1c3]

Some of the speed gains that OBS has over the 'competition' is that it composites your scenes on the GPU (a perfect application of such) rather then the CPU (which is less then ideal for such uses). Some of the reasoning is that not only is the GPU built to handle such tasks, but people also usually have spare GPU power, and not much (if any) spare CPU power... esp. if streaming x264 in software at medium. ;-)

Will OBS ever have a CPU based-composite engine? Maybe, but I seriously doubt it.

As to your issue...
1. Use Studio.
2. Post a log.