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Activity Forums Apple Motion Any way to cut out a hole (opposite mask)?

  • Any way to cut out a hole (opposite mask)?

    Posted by Scot Walker on August 17, 2005 at 5:00 pm

    I want to highlight certain areas of an illustration. One idea I had was to put a 60% opacity black square over the entire image, except for a square hole that would highlight the area I want.

    I’m guessing that I would just put the black square over the entire image and then a smaller rectangle would be put over the area I want to highlight and I would use a blend mode or something that would cut a hole out, but I’m not sure how.

    Does anyone know off the top of their head?

    Thanks!

    Scot Walker replied 20 years, 8 months ago 2 Members · 2 Replies
  • 2 Replies
  • Greg Niles

    August 17, 2005 at 6:16 pm

    You could use images with blend modes, or you could draw masks, either would work. For the mask method, draw a rectangular mask over the entire image, set the mask blend mode to “subtract”. Adjust the opacity of the mask so the image is partially transparent. Then select the parent image and draw another smaller rectangular mask over the area you want to highlight. You should see that area at full opacity while the rest is dimmed.

    What’s good about this method is that you can animate the opacity of the 1st mask to make the highlight region fade in.

    — Greg

  • Scot Walker

    August 17, 2005 at 6:46 pm

    That’s it.

    Thanks!

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