GPU Works in Premiere, doesn't work in After Effects during export

Contributor ,
Dec 31, 2017 Dec 31, 2017

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Hello.

I made a simple test. I took a footage 1280*720, placed it in Premiere project, changed scale to 300% and rendered it 3840*2160 through Media Encoder. My GTX 1060 was loaded 30%. Video engine load 0%. Then I did the same in After Effects. GPU load was 0%, Video engine load 0%, time of rendering 2 times higher. What is the problem? Adobe software 2018, windows 10 64, latest drivers, have no IQSV in my CPU. Cuda was enabled in AE, PP and ME.

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Adobe Employee ,
Jan 01, 2018 Jan 01, 2018

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Hi сергейз48634810,

Thanks for posting in Adobe Forums. As we know After Effects & Premiere Pro are applications designed for different functions & they take the advantage of GPU on your graphics card for different kinds of processing. We cannot compare both the applications in any way including the speed & performance. Please check the following article for information related to the GPU utilization in AfterEffects:

Rendering with OpenGL in After Effects CC

Thanks,

Vidya.

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Contributor ,
Jan 02, 2018 Jan 02, 2018

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Hi Vidya,

Thank you for your answer. I've already read this artice, it's not very helpful. I'd like to use more GPU power in classic 3d. Now I see that my GPU uses cuda for making a preview but it doesn't use video engine hardware decoding for that. How can I turn on video engine inside AE?

Also I see that when exporting h.264 from AE through ME my GPU doesn't work for scaling and it doesn't work for encoding. It's very frustrating, is there anything I can do to fix that?

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Adobe Employee ,
Jan 02, 2018 Jan 02, 2018

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Hi сергейз48634810,

You can enable in AfterEffects, File > Project Settings > Video Rendering & Effects > Use "Mercury GPU Acceleration".

In Media Encoder, in Queue panel, right bottom corner, Renderer > Select Mercury GPU Acceleration.

Please note, AfterEffects do not use GPU for all functions.

Thanks,

Vidya.

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Contributor ,
Jan 03, 2018 Jan 03, 2018

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Hi Vidya,

As I've already written I have Mercury GPU Acceleration Cuda enabled in AE, ME and PP. Adobe tells us that scaling is a GPU powered process. I can confirm that for ME only, for PP-ME. But it's not true when exporting from AE and it's not true when exporting from AE through ME. Du you have any idea why this happens?

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Adobe Employee ,
Jan 03, 2018 Jan 03, 2018

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Hi,

Do you mean, scaling as in scaling comp size from one size to a different output size or a scale effect when a comp is the same size as output?

Thanks,
Kevin

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Contributor ,
Jan 03, 2018 Jan 03, 2018

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Hi Kevin,

The source file was 720p. The comp was the same size as output 2160p. The scale of the source file was changed to 300% on the timeline.

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Adobe Employee ,
Jan 03, 2018 Jan 03, 2018

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Hi,

If you created a 720P comp and scaled it to 2160 on output, I believe you should then see the GPU enabled for scale. I can try it when I return to the office in the morning, or you can try it and let us know the results. I can also ask the team at that time.

Thanks,
Kevin

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Contributor ,
Jan 04, 2018 Jan 04, 2018

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Hello,

It's not a very good idea. I usually use scaling inside comps and almost never on output. It's very important to use gpu for scaling inside comps! In PP it works.

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Adobe Employee ,
Jan 04, 2018 Jan 04, 2018

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Hi,

I was just implying a test to see what's going on. Let me ask the team to get a better response for you.

Thanks,
Kevin

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Contributor ,
Jan 08, 2018 Jan 08, 2018

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Do you have anything about my question?

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Contributor ,
Jan 13, 2018 Jan 13, 2018

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Is there anybody?

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Explorer ,
Jan 15, 2018 Jan 15, 2018

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same here bro Im also searching for help 😕

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Contributor ,
Jan 18, 2018 Jan 18, 2018

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Evidently Adobe doesn't care about its products. It's sad, but we won't see the answer.

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Adobe Employee ,
Feb 06, 2018 Feb 06, 2018

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сергейз48634810,

Sorry for the delay in responding. I was able to speak with the Premiere Pro engineering team.

  • They said that AME processes effects coming from Premiere Pro differently than After Effects.
  • Premiere Pro and GPU accelerated effects handling is further along in development than After Effects is, but After Effects is adding more and more processes available to the GPU.
  • Your experience in processing times may vary given the same or similar effect being handled in either application.

I think what we need to do at this point in time is to file a feature request to the After Effects team to achieve parity with Premiere Pro in GPU accelerated effects handling in AME. Please file that request here.

Thanks,

Kevin

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Contributor ,
Feb 07, 2018 Feb 07, 2018

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Thank you for your answer.

There is no AE in your link.

Also it would be great if your AE team implemented render tecnology similar to RenderGarden.

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