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Forums Adobe After Effects Expressions camera flips over when cruizing along path!!??

  • camera flips over when cruizing along path!!??

  • TommyG

    April 8, 2005 at 10:27 am

    I’ve pasted an unlosed mask path onto a layer in AFX 6.5 pro. This path i then stroke to make my road in 3d space. Then i make a null which i paste the path (i made earlier) into it’s positional. Roving keyframes arrive which i stretch to duration length. The null then cruises the road. I make a camera which i then, using expressions, position to the null. Point of interest is set to align along path. Should work. BUT THE CAMERA HATES THE CHOSEN PATH. IT FLIPS OVER WHEN APROACHING THE CURVES IN THE ROAD??? I then convert the roaving positional keyframes to be locked to time… no help. am I missing something.

    dual G5 2.0
    FCP 4.5
    OSX 10.3.8
    1.5Gb RAM
    QT 6.5.2
    MedeaRaid 250GB
    AJA Io LA

  • Angus Mackay

    April 8, 2005 at 1:16 pm

    Hi Tommy

    check out Rick Gerards tutorial to get the definative technique for that effect

    https://www.creativecow.net/show.php?forumid=2&page=/articles/gerard_rick/AEWeekly2/index.html

    HTH

    Angus

  • yoondo

    April 9, 2005 at 12:52 am

    The reason your camera flips over is because the camera body actually has crossed over
    the POI of the camera. When you animate the cam. position and POI, be sure that the cam.
    does not pass the POI. That should resolve that. See it from the top. Change your layer
    label color to something bright so you can see the path easier.

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