Hey all,
I’m poking around with using the media track in sequencer with an .mp4 (ue4 constantly crashes with a png or exr sequence) but it gets out of sync when I render from sequencer instead of recording every frame. I thought media track was supposed to fix this long standing issue.
Any thoughts?
The synchronized playback in sequencer for the media track only works for sequences of images - which unfortunately sounds like it crashes for you. Any callstack for the image sequences?
that makes sense.
maybe ue4 doesn’t like png sequences with the media track?
I’m attaching my .loglink text
Probably related - I’m using an 800 x 800 png sequence - it’s not crashing, but it’s not in sync, with the media texture appearing quite jerky compared to the rendered sequence.
It should work fine for pngs. I just tried jpgs and exrs as well. Also, check that the img media source has a matching frame rate value as your sequence.
Does the sequence scrub properly in editor? Is it just out of sync when you render a movie?
Ah thanks! Yes - the framerate was the issue. What does ‘NaN s’ mean?
Might be handy to have a ‘sync frames’ option on the media track in the sequencer - I imagine most people using the media track would find that handy…
Well, I’m not exactly sure what I did differently but I have it working with 1024x1024 PNG with an alpha.
@Max Chen - is there any way to have a tracking matte combined with footage in sequencer to take out the background? PNGs with alpha seems a little heavy and I’m wondering if a png sequence with the content and then another with a black/white tracking matte might be less computationally intense.
I know in the composure example there are mattes in sequencer but I need could get them to work outside of that project. There isn’t a lot of documentation for these sorts of more video/animation related things.