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Activity Forums Adobe After Effects Subtract an autotrace image from a solid

  • Subtract an autotrace image from a solid

    Posted by Bradley Kanter on August 30, 2015 at 10:45 pm

    I’ve designed a stencil image in Illustrator. How may I take that image and use it to “carve” (subtract?) from a solid so that I could use a 3D point light to burst through from behind?

    I’ve imported the .png image and autotraced it, but not sure where to go from there.

    Thx,
    BK

    John Cuevas replied 11 years ago 2 Members · 1 Reply
  • 1 Reply
  • John Cuevas

    August 31, 2015 at 3:48 pm

    Apply the auto traced layer over the layer you wish to subtract. Change the subtract layer’s track matte to “alpha inverted”. Select both layers and precompose(shift+cntl+C). Now you have a layer with a hole in it.

    Johnny Cuevas, Editor
    ThinkCK

    “I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.”
    —THOMAS EDISON on inventing the light bulb.

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