17 February 2017
The fps setting in UI affects the input rate for frames. fps of the exported video is fixed to 24 or 30 fps depending on the output format. The software drops unnecessary frames automatically during export. Or it may repeat frames if fps is below exported video fps.
Even 60 fps may not be enough, we recently received feedback about it. One may calculate the interval incorrectly and make camera shots too often. Now you have the choice to drop every 2nd frame manually or set fps to 60 and software drops it for you.
If input fps is above 30 then an exported video is more or less smooth, For low fps software does not make any interpolations for intermediate frames thus it may not look smooth enough.
If your SSD and CPU are fast enough then the preview would work very well to quickly evaluate how the fps setting works.
Hope this helps!
Last edited 20 October 2020