Zoltán wrote: ↑Mon Dec 09, 2019 18:52
There are some threads on the forum on unsmooth playback.
Sometimes the answer is simple as having differen refresh rates between devices, and frame alignment is not matching up perfectly. Thus you see frame jitter, 1 input frame displaying for 2 output frames, then output skipping a frame.
I guess this occurs even when devices have identical fps, b/c their clocks aren't sync'ed ?
In our case, the PC HDMI output (=Avenue full-screen output) was set to 50i (common denominator for our show as explained earlier in this thread), BUT the internal laptop panel (Avenue control display) was set to 60p (50p not available). All videos were set to DXV3 25p and the comp. was set to 50p.
Zoltán wrote: ↑Mon Dec 09, 2019 18:52
Resolume renders at a variable frame rate, the FPS display you see is an average of 1 seconds. If you see this FPS dip, something occupied the system so Resolume couldn't render all the frames you asked it to.
OK, but why would the fps continue to vary between 47 & 50 during the diplay of a single PNG w/o any effect ?
Zoltán wrote: ↑Mon Dec 09, 2019 18:52
Keeping an eye on the resource monitor tools, windows already offers is a great way to find a bottleneck.
Not a single resource has exceeded 25% utilization at any time. When I set the comp to auto and send content accordingly, the actual fps keeps up easily (but varying between 57 & 60 fps, so there is ample room to process things at 50 steady)
And again I insist on this point: when a video plays too unsmoothly, sometimes restarting it (or restarting Avenue) fixes the problem, sometimes not (this is another proof that the system is not bottlenecked). That is my main questioning.
I will do a search on unsmooth pb in the forum as you suggest, but I continue thinking the root cause is lack of sync between Resolume's fps and the downstream device fps, even when there is NO bottleneck.
Of course, if that's the root cause, I see not solution