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Activity Forums Adobe After Effects Won’t preview more than 25 seconds

  • Won’t preview more than 25 seconds

    Posted by Ljusto Struhar on November 3, 2008 at 9:43 am

    Hi guys, I imported a .mov file, and my movie is 30 seconds long. However when I want to preview the footage, it only renders out about 25 seconds. Yes, the work area is the entire comp..

    When I try to just preview the rest of the 5 seconds by moving my work area between 25-30, it renders it out, but at the cost of previously rendered out frames (the green bar backtracks on the earlier rendered part). So I’m really confused why would this happen.

    Appreciate the help.

    Jan Sherlink replied 17 years, 6 months ago 5 Members · 5 Replies
  • 5 Replies
  • Daryl Booth

    November 3, 2008 at 12:00 pm

    Hi,

    It could be your memory limit. The length of the prewiew is determined by your RAM. Try dropping preview quality to 1/3rd. That should sort it out. And buy some more RAM.

    salutations from codemonkey

  • Paul Conigliaro

    November 3, 2008 at 2:12 pm

    Agreed with Daryl. Sounds like a memory limit. How much RAM is in your system?

    [As a side note: currently AE will only use 3GB of RAM as it is a 32-bit app. I don’t think this has changed in CS4. So yes, buy more RAM, just know that throwing 6GB at your computer will not result in 6GB available for AE.]

  • Kevin Camp

    November 3, 2008 at 5:40 pm

    ae is 32-bit, but with cs3 and up, ae can use more than 3gb of ram for rendering, but you’ll need more than one processor and a 64-bit os.

    it does this by launching other 32-bit render engines for each processor. each 32-bit render engine can then get 2gb of ram (it may be able to get more, but it seems limited to 2gb). so if you have 8 processing cores, ae can use 16gb of ram for rendering (and preview rendering) if multiprocessing is enabled.

    if you have an earlier version of ae (like ae7), you can get multiprocessing with nucleo pro from gridironsoftware.com/. but you’ll still need a 64-bit os to use more that 4gb of ram…

    Kevin Camp
    Senior Designer
    KCPQ, KMYQ & KRCW

  • Jan Sherlink

    November 4, 2008 at 2:46 am

    When you move to Vista64, try to add some ram also.
    Find out how much memory your motherboard can handle and fill it up.
    Moving from Vista32 with 3GB to Vista64 with 3GB won’t make much difference; your computer uses memory for hardware too (Graphic Cards)
    going to 4GB or 8GB (if your motherboard alows it) would be the best thing to do.

    cya,

    Jan

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