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Activity › Forums › Adobe After Effects Expressions › Smoothing nodal pan by re-timing, by calculating a tracker’s velocity over time

  • Adobe After Effects Expressions

    Smoothing nodal pan by re-timing, by calculating a tracker’s velocity over time

    Posted by Aivaras Seduika on September 27, 2011 at 10:28 am

    Hi guys!
    I have a mind boggler (well, for me :P.)
    I have a jib shot which isn’t very smooth (not a nodal pan, that was just to help thread title), the camera keeps speeding up/slowing down. I need to smooth this.
    Because the subject matter isn’t sync-sensitive, I’m speeding bits up that are slow, and slowing bits up that are fast as a way to average the camera’s speed to smooth the shot

    So theoretically, my re-time value is inversely proportional to the camera movement.

    I have a motion tracker which I have to help me visualise where the shot slows down/speeds up.
    How would you go about mapping the change in velocity of this tracker into a percentage value of the re-timer? 100% being the average value which i’d pre-set I’d guess, and the speed change would be relative to this.

    Any ideas?
    Thanks in advance by the way 🙂

    Jeremy Hansen replied 14 years, 5 months ago 2 Members · 1 Reply
  • 1 Reply

  • Jeremy Hansen

    November 26, 2011 at 1:12 am

    I have the same exact issue. Did you ever figure it out? I would love to know if this is possible.

    Thanks!

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