• Adobe After Effects Expressions

  Random numbers in one source text

  Posted by Kyle Maven on October 30, 2019 at 4:39 pm

  I want to display a group of six numbers, each with a value of either 0 or 1 (with spaces between). I want each number to randomize every 4-8 frames. I was hoping to keep it all in one layer’s Source Text with the ability to add more numbers with a slider (instead of 6 numbers, I want 9 or 12). Also I want the seed to be different if I duplicate the layer.

  I don’t know too much about expressions but I know its a combination of posterizeTime, seedRandom, Math.round, gaussRandom, repeat, and a slider. But I just don’t know how to lay it all out.

  Right now I am just working on getting them all to be different numbers, then I was going to work on “adding” numbers but I’m stumped. The expression I currently have displays all the same number.

  0 0 0 0 0 0

  but I want something like
  1 0 0 1 1 0 >>> 1 0 1 1 0 0

  I appreciate any help!

  posterizeTime(gaussRandom(4,8);
seedRandom(index, timeless = false);
Num = Math.round(gaussRandom(0,1));

  Num + " " + Num + " " + Num + " " + Num + " " + Num + " " + Num + " "

  Kyle Maven replied 6 years, 6 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  October 30, 2019 at 6:05 pm

  You need to call random() (or gaussRandom()) for each number, something like this:

  
seedRandom(index, false);
n = 6; //number of digits
str = "";
for (i = 0; i < n; i++){
str += Math.round(gaussRandom(0,1)) + (i == n-1 ? "" : " ");
}
str

• 

  Kyle Maven

  October 30, 2019 at 8:37 pm

  Just added posterizeTime() but works perfectly! Thanks!

Reply to this Discussion! Login or Sign Up