• Adobe After Effects

  Linking expression to keyframe in CS3

  Posted by Francesco Garasto on May 11, 2009 at 1:55 pm

  Hi all,

  i’m just wodering if it’s possible to link an expression to a particular keyframe, in order to start the expression at a point and reset or stop it at another point of the same layer.

  For example to wiggle the position of a camera between the 3rd and the 5th seconds of the timeline and bring it back at the original position after the 5th second.

  1000 thanks to all of you who read this 🙂

  Francesco Garasto replied 17 years, 3 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Todd Kopriva

  May 11, 2009 at 3:53 pm

  Your heading says that you want to connect the expression to keyframes, but then you say that you’d like to control the expression’s influence to be during a specific time interval.

  There’s an example in After Effects Help that shows how to make a wiggle only happen during certain time intervals:
  “Expression example: Start or stop wiggle at specific time”

  There’s also an example that shows how to trigger an expression’s result based on layer markers:
  “Expression example: Animate scale at each layer marker”
  Because layer markers and keyframes are very similar in the expression language, you can easily adapt this to use keyframes instead of layer markers.

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  Todd Kopriva, Adobe Systems Incorporated
  putting the ‘T’ back in ‘RTFM’ : After Effects Help on the Web
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• 

  Francesco Garasto

  May 11, 2009 at 5:32 pm

  Yes, sorry you’re right, i messed up a little bit.

  I’ll take a look at the examples.

  Thank you for your reply.

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