• Adobe After Effects Expressions

  Setting horizontal position of a layer in one comp from null object in other comp

  Posted by David Lawrence on April 30, 2014 at 7:38 pm

  Hi All,

  I need help with a very simple expression:

  I want to use a null object in a comp as a simple slider to control the horizontal position of a targeted layer in a separate pre-comp.

  I used the pic whip on an expression for the position attribute of the layer I want to move and selected the X coordinate of my null object. This creates this expression:

  temp = comp("s7_LLangle3_stable_comp").layer("Null 1").transform.position[0];
[temp, temp]

  The problem is that when I slide my null object, it changes both the X and Y position coordinates of my target. I only want X (the horizontal position) to change.

  What do I need to change in the expression so that it only affects the X position of my target layer? I’m sure it’s super simple and I’m already close.

  Thanks for your help!

  _______________________
  David Lawrence
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  David Lawrence replied 12 years ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  April 30, 2014 at 7:43 pm

  Try changing the last line to:

  [temp, value[1]]

  Dan
• 

  David Lawrence

  April 30, 2014 at 7:46 pm

  [Dan Ebberts] “Try changing the last line to:

  [temp, value[1]]”

  Perfect! Many thanks! 😀

  _______________________
  David Lawrence
  art~media~design~research
  propaganda.com
  publicmattersgroup.com
  https://lnkd.in/Cfz92F
  facebook.com/dlawrence
  twitter.com/dhl
  vimeo.com/dlawrence/albums

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