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  • Posted by Scott Hathaway on October 27, 2006 at 5:15 am

    I’ve been doing a motion track with corner pin for some time now and have gotten the points to be pretty much where I want them. But I just realized the original footage I had been tracking needs to be reflected on its y axis. Now I’ve got tracking points going in the wrong direction! I need to get these tracking points to follow an object as it is looking in the opposite direction. What should I do?

    Scott Hathaway replied 19 years, 6 months ago 2 Members · 2 Replies
  • 2 Replies
  • Mylenium

    October 27, 2006 at 8:08 am

    You could work on your footage normally, then pre-compose and flip over. If you want to use expressions, something like this might work:


    X_old=effect(“Corner Pin”)(“Top Left”)[0];
    Y_old=effect(“Corner Pin”)(“Top Left”)[1];

    X=width-X_old;
    Y=Y_old;

    [X,Y]

    Mylenium

    [Pour Myl

  • Scott Hathaway

    October 27, 2006 at 3:35 pm

    In my haste I hadn’t considered flipping the final product. Thank you.

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