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Activity Forums Adobe After Effects 30p animation in 24p footage

  • 30p animation in 24p footage

    Posted by Brad Hodgson on February 23, 2010 at 8:12 pm

    Hey all,

    I’m working on a project that requires a 1080 30p animation I created to be composited onto a movie theatre screen in a 24p live action cut. I’m having a bit of a brain cloud right now… will I need to conform my animation to 24p for sync purposes when delivered to the post house doing the compositing?

    Brad Hodgson

    Brad Hodgson replied 16 years, 2 months ago 2 Members · 3 Replies
  • 3 Replies
  • Brad Hodgson

    February 23, 2010 at 8:30 pm

    Thanks Dave,

    What about Nattress?

    https://www.nattress.com/Products/standardsconversion/GConverter.htm

    Will that allow me to take a 1080 30p image and convert to 1080 24p?

    Brad Hodgson

  • Walter Soyka

    February 23, 2010 at 9:06 pm

    If your animation is generated entirely within AE (no external movies or image sequences), you can simply drop your 30p comp into a 24p comp. Make sure that “Preserve frame rate” in the original comp’s Advanced settings is turned off. Double-check that any camera moves or quick animations are acceptable at the lower frame rate. Voila – now your animation is 24p.

    If you do have external footage, you’ll want to use some sort of optical flow-based technology like the ones Dave mentioned; I’m a Twixtor fan, but you could also try AE’s pixel motion-based frame blending.

    Don’t ignore Dave’s advice on double-checking the frame rate — 23.976 fps is often called 24p, but the difference is not negligible!

    Walter Soyka
    Principal & Designer at Keen Live
    Motion Graphics, Widescreen Events, Presentation Design, and Consulting
    RenderBreak Blog – What I’m thinking when my workstation’s thinking
    Creative Cow Forum Host: Live & Stage Events

  • Brad Hodgson

    February 23, 2010 at 10:33 pm

    Great, thanks for the advice, Walter…, and you too, Dave.

    Brad Hodgson

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