Ok, I can’t figure out what the problem is… I render out a PNG sequence, import it into premiere pro, then try to render it out of PP as a movie. No matter what I do or how I do it, part of the movie always stutters a bit during playback.
I’ve checked everything I can. Made sure to use interpret footage to match the PNG sequence framerate with the PP sequence frame rate. Made sure the export framerate was the same as the framerate of the sequence. Seems like I tried every export setting I could think of. I tried frame blending. I’ve tried multiple codecs. Nothing I can do will eliminate this minor stuttering.
It also happens if I try to render it through after effects.
Ideas about the best way to turn a PNG sequence into a movie and eliminate the stuttering?
I’m clueless about Premier but why don’t you give it a go through the VSE using the defaults and see if you get similar results.
If you don’t get stutter in the movie generated by the VSE, then there could be something wrong with how you import the sequence in Premier. Can’t help you with that, sorry.
If on the other hand you get similar errors with the move created by the VSE, then I would suspect that there’s something wrong with how you rendered the pngs from Blender.
The thing is that rendering sequences out of Blender is very simple and straightforward.
Btw, what are you trying to render? Stills from an animation or a movie?
I’ve had similar issues with AP CS6, but after a few media exports I found one that didn’t skip. However oddly enough it skipped after it was uploaded to youtube…but to make the issue even more weird it didn’t skip on a relatives computer.
blendercomp - I’m doing a pretty normal export. You’re right that rendering PNGs is really easy and straightforward.
I’m rendering stills from an animation.
I’ll try the VSE. Honestly, I’ve read similar things - people having trouble in premiere or after effects but when they use VSE it seems to work. That makes no sense at all since importing a PNG sequence is so straight forward.
It’s somewhat comforting to hear other people are having the same problem.
Well it doesn’t really matter what fps value you set in Blender when you render a PNG sequence, it will be just a bunch of images either way. The easiest solution would probably be to render the image sequence in a video using Blender’s image sequence editor and then import that in Premiere pro/After effects. Remember to set fps correctly when you render your image sequence in a video file though
PS. What kind of frame rates do you use? Depending on the situation I use 15, 20 or 30 fps or anything that’s in sync with 60 fps refresh rate. I don’t understand why some people render in 24 fps and then upload it on youtube with some terrible deinterlacing.
While that’s doable, IMO it’s not advisable to do so. I mean you can render out in a purely lossless codec but I’d use that only if everything else fails.
Like it was pointed out above by Tame, the Blender fps rate Blender should match perfectly with the Premier fps rate and this should normally be set upon importing the img sequence in the latter.
I actually did that… I rendered out the PNG sequence as 24 FPS, then used interpret footage in premiere to set the PNG sequence as 24 fps. Then I made sure the composition sequence in premiere was 24 fps and the final export settings were 24 fps.
One thing I should mention. The whole sequence doesn’t stutter. The camera pans into a closeup of an object. As it gets closer, that is when the stuttering starts. I noticed that while it was rendering that the same parts that are stuttering also took a lot longer to render - close to twice as long. Any way this could be contributing?
I’d suggest using either the VSE or an image sequence player (e.g. DJV) to inspect the frame range of interest to check that you have actually managed to render “clean” stills from your animation. Btw, do you use vector blur in your animation? A quick (or very quick) pan without vector blur might be the source of the problem. If that holds then your problem is principally unrelated to setting the correct fps upon importing the sequence in AP.
So, the idea is to inspect the stills for any kind of distortions before attempting to render out a movie.
I’ve been playing around with this and still can’t figure it out. I think the most basic explanation is that the camera is moving too quickly for the frames and I’m not getting motion blur/frame blending (despite the fact I tell premiere pro to put in frame blending).
When I expand the number of frames to accommodate 30 fps instead of 24, I get smoother playback because there are now more available frames.
I’d suggest using motion blur and setting a high number of samples per frame. This will increase the render times to a punishing level but you’ll get much better looking stills.
Btw, hope you’re referring to an animation created in Blender and not a movie shot with a real video camera.
