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  • Maddening render issue

  • Tobias Van Kleeck

    March 11, 2013 at 6:47 pm

    Hello all,

    So, I’m attempting render a 2 minute animation that is comprised of some not-particularly-large images for back ground textures and then a bit of type and shape layers. A lot of precomps but nothing insane or super-taxing. Zero glow. Zero blur. Zero motion blur.

    The render starts out fine and then slows to a crawl 33% in. The time remaining goes up and up and up with each five minutes that passes.

    One crucial note: I can RAM preview :30 stretches of this in FULL res 1080p in about one minute – this is why this makes no sense to me. Based on 7 years of AE experience, this is an animation that should take about 20 minutes TOPS to render. It wasn’t even half done after an hour.

    I’ve tried restarting the Mac for the hell of it to no avail.

    Any ideas would be immensely appreciated – thanks in advance!

  • Vishesh Arora

    March 11, 2013 at 7:28 pm

    Tobias

    I can RAM preview :30 stretches of this in FULL res 1080p in about one minute

    It seems that the rendering is taking more time then expected is because of the codec you are using which is an expected behavior.

    Vishesh Arora
    3D and Motion Graphics Artist
    Films Rajendra

    Blog:
    https://digieffects.wordpress.com

    2011 3D Demo Reel:

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  • Cassius Marques

    March 11, 2013 at 7:29 pm

    AE version? any use of raytrace?

    You said you can RAM preview it all in 1 min? It should take the same amount to render. Unless some motion blur or frame blending is kicking in for render. What are you rendering it to? Have you tried changing the output location and format?

  • Tobias Van Kleeck

    March 11, 2013 at 7:36 pm

    Sorry, should have been more detailed.

    CS6 – no raytracing. I actually just remembered there is a bit of motion blur but it’s on maybe 6 words that are small and onscreen for all of 3 seconds. I’m rendering right to the desktop and using Apple ProRes 422 (HQ)

    I should also mention that I even dropped it to Half resolution (while still at 100% quality).

  • Kevin Camp

    March 11, 2013 at 7:42 pm

    check you ram settings. you can see this happen when disk caching kicks in.

    if you can monitor disk activity when the slow down starts, and you see an increase in disk usage, then that’s likely part of the problem.

    if you lower ae’s max ram, then it should help prevent the os from using disk caching. you can also disable ae’s disk caching, though ae is not supposed to cache frames when it’s faster to render them.

    Kevin Camp
    Senior Designer
    KCPQ, KMYQ & KRCW

  • Todd Kopriva

    March 11, 2013 at 10:53 pm

    I’m guessing that you’ve over-allocated RAM to After Effects, causing swapping to the hard disk, which is a huge performance killer.

    See this:
    https://blogs.adobe.com/aftereffects/2009/12/performance-tip-dont-starve-yo.html

    Show a screenshot of your Memory & Multiprocessing preference settings.

    ———————————————————————————————————
    Todd Kopriva, Adobe Systems Incorporated
    After Effects quality engineering
    After Effects team blog
    ———————————————————————————————————

  • Carlo Arias

    March 12, 2013 at 11:38 pm

    Well, this happened to me a couple of times with a particular animation I was working on. I don’t know which step fixed the problem but heres what I did:

    1. Quit all apps
    2. Delete de AE cache folder from the finder
    3. Clear media cache from within Ae preferences.
    4. Disable Multiprocessing
    5. Change the name of the fie (one time I just changed the name and it worked)

    Let me know if any of this works for you, cheers

    Carlo Arias
    Motion Graphics / VFX / Post
    http://www.carloarias.com
    +57 1 8060443
    +57 3203397938
    Bogotá D.C. – Colombia

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