• Adobe After Effects Expressions

  Need a key frame expression

  Posted by Durwood Hibbard on October 24, 2011 at 10:41 pm

  Greetings,
  I am looking to use the plug-in sure target for a photo show. I am in a little bit of a rush to get this done and was looking to apply sure target then use an expression to make the animation happen about every 4 seconds. I have around 54 photos and don’t want to have to manually key them all in. Can anyone help with an expression that would allow each photo to stay on for 4 seconds then have a 1/2 second movement to the next photo? Key frame wise it would have to be a key then a 4 sec gap another key then 1/2 gap. Then the pattern would repeat.

  <> 4 sec <> 1/2 sec <> 4 sec <> 1/2s. <>

  Hope someone can help.

  Thanks

  Noah Murad replied 14 years, 9 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Noah Murad

  October 28, 2011 at 1:16 am

  Im quite new to expressions so don’t quite take my word for this. But I think what you want to do is just copy and paste the animation, then use a sequencer script to separate each photo by four and a half seconds.
  Or if it is one paramater that you are editing, you should use a sinusoidal (sin or cos) function and limit the values with a if/else statement, for when the images are still for four seconds. Again, I am new to expressions, and Im a little unclear on how many/ what paramaters you are working with.

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