Urgent Need: Prolonged Export of After Effects Motion Graphics video

New Here ,
Mar 02, 2022 Mar 02, 2022

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Hi, my name is Andy Diesel and I am a videographer.

Currently, I'm exporting a simple motion-graphic animation made up of layers that either use 'generate a stroke' effects or changing the opacity for separate masks.  The only elements I can assume would have an impact is that I'm working from an external hard drive and that each of the 3 static layers is 29074 × 16355px in dimension, though they've been compressed and range in sizes under 1.7MB.

I have added a screenshot but up until now it has been exporting for 16 hours and has only exported a few seconds of the 17-minute video clip.

Tech specs:

  • MacBook Pro M1 (less than a year old)
  • 144.96 GB available on Macintosh HD
  • External 1 TB with 43.27 GB available
  • Adobe After effects 2022
  • Adobe Media Encoder 2022

Would really appreciate further input and if you have any questions please let me know?

TOPICS
Freeze or hang , Import and export , Performance

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Adobe Community Professional ,
Mar 02, 2022 Mar 02, 2022

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File sizes don't matter. Even a 1.7 MB file will expand to a few hundred megabytes of data per frame when decompressed. and that likely is simply the issue. Even in 8bpc mode you may be exhausting your 8 GB of RAM or whatever you have and on top indeed the limted transfer bandwdith of your external storage may figure in somewhere, too. You're likely also not helping matters along by encoding with VBR and hardware acceleration. At the very least start by rendering out an image sequence directly from the AE render queue and encode it later. Otherwise there's a good chance only massive restructuring of your project will bypass some of the performance issues, but that would require much more specific info on what's actually going on.

 

Mylenium

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Adobe Community Professional ,
Mar 02, 2022 Mar 02, 2022

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I agree with @Mylenium. Even exporting a ProRes file directly out of After Effects will give you significantly faster render times than going directly to MP4. It takes much more horsepower to render frames, then compress them to H.264 than it does to encode an intermediate format like ProRes. I recently did a test on a shorter UHD animation; it took 9 minutes to export H.264 (with Hardware Acceleration disabled) and only 90 seconds to export to ProRes. So even making that extra, much larger, intermediate format and then converting that to a MP4 will save you loads of time.

 

An image sequence, however, is a good idea in case something goes wrong or you can only export a certain number of frames at a time. Try TIFF or compressed EXR instead of PNG, as After Effects is notoriously slow when it comes to encoding PNG sequences. 

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