• Adobe After Effects

  scripting- creating a random number

  Posted by Jakob Thommessen on August 24, 2006 at 11:25 am

  hi,

  anybody knows a way to create a random number that stays the same (does not create a new value every frame)?
  i wish to multiply the rotation value of a lot of layers with random values ranging from 1-3.

  any help is much appreciated!

  Jakob.

  Mylenium replied 19 years, 8 months ago 3 Members · 2 Replies
• 2 Replies

• 

  Aronduby

  August 24, 2006 at 2:29 pm

  seedRandom(1,true);
  multiplier = random(1,3);
  rotation*multiplier;

  that should do it, the seedRandom(#,true) is what keeps it the same, actually just the true value. I’m not 100% sure whats going on with it, but the property is called “timeless” and setting it to true makes the random number not change every frame. If you use it on different layers and want a different random number, make sure to change the number thats the first value in the parenthesis.
• 

  Mylenium

  August 24, 2006 at 3:42 pm

  [AronDuby] “I’m not 100% sure whats going on with it, but the property is called “timeless” and setting it to true makes the random number not change every frame.”

  What it says – “timeless”. Eternally beautiful randomness for you to enjoy ;O). Na, it will stop the underlying Perlin noise calculations (Perlin noise is based on multiple overlapping sinus/ cosinus waves, so your waves are simply stopped).

  Mylenium

  [Pour Myl

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