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Activity Forums Adobe After Effects How do I erase a comp?

  • How do I erase a comp?

    Posted by Gina Miller on August 30, 2012 at 8:31 pm

    I want to erase an entire comp (pre compose) with a soft eraser – it isn’t letting me, I know I can erase a single picture from deep with in a comp but I want to erase the the whole thing. Please help! Thanks, Gina

    Eric Chard replied 13 years, 8 months ago 3 Members · 5 Replies
  • 5 Replies
  • Gina Miller

    August 30, 2012 at 9:10 pm

    When you say painting, can I some how paint black on the sides of a comp to make it look erased?

  • John Cuevas

    August 31, 2012 at 12:38 am

    You could take a solid and place it over your composition and use the eraser on that. You could even animate the brush stroke. Then you could use that as a track matte for your final video.

    I made a quick example: 4606_eraserfolder.zip

    Johnny Cuevas, Editor
    Thinkck.com

    “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.

  • John Cuevas

    August 31, 2012 at 11:33 am

    If it helps, I created a CS5 version of the effect. There’s nothing with these techniques though that couldn’t be replicated in any version that has paint/eraser tools in AE. If you have any questions just let me know.

    4609_erasercs5.aep.zip

    Johnny Cuevas, Editor
    Thinkck.com

    “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.

  • Gina Miller

    August 31, 2012 at 8:53 pm

    Still can’t open it, I have CS4

  • Eric Chard

    September 2, 2012 at 7:15 pm

    using Paint, make a (pre)Comp that has the erasing effect you want, using black on white or the inverse.

    Then, use that comp as a track mask.

    ++++++++++++++++
    “Putting the HARM in ‘harmonica’ since 2005.”
    ++++++++++++++++

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