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Activity Forums Adobe After Effects Moving anchor point in a mask?

  • Moving anchor point in a mask?

    Posted by Jonathan Lewis on March 22, 2009 at 6:23 pm

    Hi

    Im trying to animate a mask over a rainbow. Basically to make it look like the rainbow is forming or shooting across. I notice you can move the anchor point which would really help me but it seems to reset as soon as I set a keyframe. Anyone know how to avoid this?

    How would i duplicated the rainbow and turn it into a mask? Thanks.

    J

    Roland R. kahlenberg replied 17 years, 1 month ago 3 Members · 2 Replies
  • 2 Replies
  • Simon Bonner

    March 22, 2009 at 11:22 pm

    Hi Jonathan,

    You might find it easier to ditch the mask and use a radial transition effect instead. You can find it under the transition section of the effects menu. Set the wipe center at the middle of the rainbow, set the start angle to 90 (or -90) degrees, then animate the transition complete value. Should get you the effect you want.

    Simon Bonner

    youtube.com/simonsaysfx

  • Roland R. kahlenberg

    March 23, 2009 at 4:05 pm

    The Radial may work depending on the shape of your Rainbow.

    When you draw a mask on a layer, there are actually two anchor points. One is the usual layer’s Anchor Point and the other belongs to the mask.

    The Anchor Point for the mask can only be seen in the Layer Panel when View is set to Mask. In this view the Mask’s Anchor Point looks exactly like a Layer’s Anchor Point. The Mask’s Anchor Point functions only when you are in Mask Transform mode.

    HTH
    RoRK

    broadcastGEMs – AEPro Volume 02 (Professional Adobe After Effects Project Files – Now Available)

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