• Adobe After Effects Expressions

  Modifying 2-D expressions to 1D values

  Posted by Navarro Parker on November 19, 2012 at 10:18 pm

  I’m using Dan’s standard “Creating Trails” expression:

  delay = thisComp.layer(“Delay Null”).effect(“Slider Control”)(“Slider”); //number of frames to delay
  d = delay*thisComp.frameDuration*(index – 1);
  thisComp.layer(1).position.valueAtTime(time – d)

  And it works great for 2D position properties. But if I use the “Separate Dimensions” command, it breaks if I apply it to a “1D” property like X or Y individually. How can I modify it to work with just one dimension?

  Dan Ebberts replied 13 years, 9 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Dan Ebberts

  November 20, 2012 at 1:39 am

  For xPosition, for example, you could change the last line to this:

  thisComp.layer(1).transform.xPosition.valueAtTime(time – d)

  Dan

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