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Activity Forums Adobe After Effects AE auto-trace stops when switching apps

  • AE auto-trace stops when switching apps

    Posted by Graham Hutchins on July 25, 2007 at 12:13 am

    Hello all,

    My first post here, though I have been lurking around for some time now, absorbing as much as I have the time for or inclination. This is an amazing resource.

    Anyway, I’m doing some keying and part of my workflow involves a quick and dirty initial key and then auto-tracing the alpha of my subject to a new matte layer, connecting the source footage to the matte, and then applying a simple choker to expand the matte to about 25-30 px around the subjects.

    Basically, I’m just knocking out all the green screen with a matte and leaving a small strip of green around the edges left over for keying in keylight. I don’t have to be as aggressive with the keying with this technique. (Many thanks Andrew Kramer!)

    The problem I’m having is that while AE is auto-tracing, I can’t do any other work on my machine. If I switch to another program or even the finder, auto-tracing stops and AE says “Auto-trace interrupted.”

    The clips I’m working with are anywhere from 3-8 minutes long and can take anywhere from 30 mins to 2 hours to auto-trace. Maybe I’m just asking for something that isn’t possible, but it would be nice if, like when rendering, I could be working in Final Cut or Photoshop while this process happens.

    Anyone have any ideas?

    -Graham

    OSX 10.4.10
    AE CS3 and 7.0
    FC Studio 2.01
    Dual 2.7GB PPC G5, 2.5GB RAM

    Aharon Rabinowitz replied 18 years, 9 months ago 2 Members · 1 Reply
  • 1 Reply
  • Aharon Rabinowitz

    July 25, 2007 at 3:17 am

    Coffee/lunch break? Get another computer?

    Sorry, but that’s the way it is in this line of work sometimes. Sometimes operations keep you from doing more work.

    I could be wrong. There may be a solution. I just don’t know it.

    —————————————-
    Aharon Rabinowitz
    arabinowitz(AT)yahoo(DOT)com
    http://www.allbetsareoff.com

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