• Adobe After Effects

  an expression to loop Fractal Noise?

  Posted by Milton Hockman on February 15, 2008 at 3:13 pm

  anyone know of an expression to use on fractal noise to make it loop?

  I don’t want to have to keyframe the subset or rotation. I want to use and expression to keep it looping for as long as my timeline is.

  Motion Graphics Artist and Non-Linear Editor
  Software expertise include: After Effects, Avid Xpress Pro, Final Cut Pro, Dvd Studio Pro, Photoshop, and more.

  Charles Bryan replied 11 years, 10 months ago 4 Members · 4 Replies
• 4 Replies

• 

  Steve Roberts

  February 15, 2008 at 3:41 pm

  Have you seen this?

  https://library.creativecow.net/articles/rabinowitz_aharon/fractal_loops.php

  By the way, if you want any two keyframes to keep looping, you can use a loop expression (the default is fine) but you have to set two keys first. Anyway, check out the tut if you haven’t already.
• 

  Milton Hockman

  February 15, 2008 at 5:17 pm

  tut is good but what is the expression to loop?

  Motion Graphics Artist and Non-Linear Editor
  Software expertise include: After Effects, Avid Xpress Pro, Final Cut Pro, Dvd Studio Pro, Photoshop, and more.
• 

  Darby Edelen

  February 15, 2008 at 6:11 pm

  [Milton Hockman] “tut is good but what is the expression to loop?”

  There are a lot of different properties that you can animate in Fractal Noise. If you’re talking about rotation or evolution then you don’t need an expression to loop those properties at all, if you’re talking about position then you can’t use an expression to loop it.

  To cycle the evolution of the fractal noise enable “Cycle Evolution” under Evolution Options. Then make sure that your evolution animates through whole cycles (i.e. from 0° to 1x 0.0° or from 0° to 2x 0.0° or from 30° to 3x 30°) and change the “Cycle (in Revolutions)” value to the number of revolutions animated in your comp (1 for my first example, 2 for my second or 3 for the last).

  If you’re not asking about evolution then you need to be more specific as to what properties you need to loop.

  Darby Edelen
  Designer
  Left Coast Digital
  Santa Cruz, CA
• 

  Charles Bryan

  October 31, 2014 at 3:24 am

  I have been to the above mentioned tut and I am asking the same question: How do we get the evolution to loop? The tutorial shows how to click on “Cycle Evolution” but it does not demonstrate the fractal nosie looping over time in a larger composition. The video merely shows the preview looping.

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