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Activity Forums Adobe After Effects Creating a garbage matte via time difference effect?

  • Creating a garbage matte via time difference effect?

    Posted by Kevin Dearing on May 15, 2008 at 5:21 pm

    I just watched Maltaannon’s “Particle Playground on Fire” tutorial here:
    https://library.creativecow.net/articles/drozda_jerzy/ParticlePlayground.php

    (awesome stuff!)

    And although what I’m asking about isn’t what Maltaannon did, it seems like I might be able to use the basic technique – the time difference effect in conjunction with some other effects to get a fairly decent matte on a person walking.

    Can anyone give me some pointers or advice about this? Has anyone learned the hard way that this will most likely not work (or will it?) And of course, if someone’s done it can you give me a rundown of how you did (or hopefully point me towards a tutorial.)

    Thanks in advance!

    –KTFA

    Alan Tonn replied 18 years ago 3 Members · 4 Replies
  • 4 Replies
  • Kevin Camp

    May 15, 2008 at 6:15 pm

    it seems like it should work, …. however you may be able to get even tighter junk mattes with aharon rabinowitz’s super tight junk mattes technique described in his tutorial….

    Kevin Camp
    Senior Designer
    KCPQ, KMYQ & KRCW

  • Kevin Dearing

    May 15, 2008 at 6:57 pm

    I watched that tutorial last week sometime.. I’ll watch it again but I sorta remember that it was basically only for Chroma key footage.. Wrong?

    –KTFA

  • Kevin Dearing

    May 15, 2008 at 7:19 pm

    Thanks David – as long as I don’t come across any killer bunny rabbits in my quest at least I’ll be learning something! 😉

    –KTFA

  • Alan Tonn

    May 16, 2008 at 12:15 am

    Hello

    i tried this a while ago with a stroke mask effect on a layer.

    basically i had one composition in which i used a stroke to reveal a layer. then i brought that comp into another and used the time difference to catch the leading edge of the stroke effect. then i applied a cc radial fast blur and got a cool effect that caused it to look like it was being created by light.

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