• Adobe After Effects Expressions

  expression memory

  Posted by Daniel Renda on April 20, 2009 at 2:47 am

  Hello I have been using a lot of expressions lately and i was wondering if for example… if I have a camera in a comp with a point of interest wiggle applied to it, and i duplicate that comp… will the same camera inside of the copy still have the same exact wiggle on it. Another words will the cameras both have the same exact wiggle positions?

  Daniel Renda replied 17 years, 4 months ago 2 Members · 4 Replies
• 4 Replies

• 

  Dan Ebberts

  April 20, 2009 at 3:25 am

  That appears to be the case, IF the cameras occupy the same postion in the layer stack (e.g., they are both layer #1). If not, you can still force them to the same wiggle by preceeding both the wiggle commands with a seedRandom command using the same seed for both cameras, like this:

  seedRandom(1,false);
  wiggle(3,100)

  Dan
• 

  Daniel Renda

  April 20, 2009 at 4:16 pm

  so if the layers are in the same stacking order the wiggles will be the same?

  also in the seedRandom expression what does the “1” do?
  (seedRandom(1,false);)
• 

  Dan Ebberts

  April 20, 2009 at 5:20 pm

  1) Yes. Try it – you can’t hurt anything.

  2) The 1 is the random seed value. You can use any number as long as you use the same number for both layers. Changing the number changes the generated wiggle values.

  Dan
• 

  Daniel Renda

  April 23, 2009 at 11:32 pm

  Thank you worked great…

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