• Adobe After Effects Expressions

  Move an object along the x axis over a designated number of frames

  Posted by Mike Tosetto on May 31, 2012 at 2:15 am

  Hi there.

  I’m a bit stuck with the solution for this. I have a number of objects on a grid and want to move them tighter together as I pull the camera back.

  I’m hoping some kind of expression might do the trick.

  I need to move an object along the x axis for say 100px over a period of 25 frames.

  I’ve got this so far but unfortunately this creates continuous movement.

  Any help as always is much appreciated.

  Cheers

  Mike

  x = (time / thisComp.frameDuration) * 10;

  value + [x, 0]

  miketosetto dot com | bestiacollective dot com

  Mike Tosetto replied 14 years, 2 months ago 2 Members · 4 Replies
• 4 Replies

• 

  Dan Ebberts

  May 31, 2012 at 2:39 am

  Something like this:

  tStart = 1; // start move at 1 sec.
  numFrames = 25; //move for 25 frames
  dist = 100; //move 100 pixels
  x = linear(time,tStart,tStart+framesToTime(numFrames),0,100)
  value + [x,0]

  Dan
• 

  Mike Tosetto

  June 1, 2012 at 12:45 am

  Dan, I mean this with the absolute utmost respect, you are a freak with this stuff. Thanks so much.

  Thanks so much.

  I don’t know if this next question is pushing the friendship, but is it possible to ease with expressions?

  Thanks again Dan 🙂 🙂 🙂

  miketosetto dot com | bestiacollective dot com
• 

  Dan Ebberts

  June 1, 2012 at 12:54 am

  In the previous example, just change “linear” to “ease” (or “easeIn” or “easeOut”). See the Interpolation Methods section in the expressions chapter of AE Help.

  Dan
• 

  Mike Tosetto

  June 1, 2012 at 1:20 am

  Ah yes of course, shouldn’t have missed that. Thanks again Dan. It works a treat

  miketosetto dot com | bestiacollective dot com

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