• Adobe After Effects Expressions

  need help with expression :)

  Posted by Alek Panfilov on October 17, 2005 at 4:55 pm

  hi all ,
  got some problem with expression , i’m not so good with math so maybe it’s very simple but i just can’t generate it with my brain 😛

  i need an expression that will generate randomly values 0 or 100.

  please help 🙂

  Alek Panfilov replied 20 years, 7 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Dan Ebberts

  October 17, 2005 at 6:55 pm

  If you want it to change as fast as possible try this:

  Math.round(random())*100;

  If you want to slow it down try this (and adjust freq as necessary):

  freq = 5;
  if (wiggle(freq,10) < value) 0 else 100 Dan
• 

  Alek Panfilov

  October 18, 2005 at 10:29 am

  thank you Dan , it helped me out 🙂
• 

  Alek Panfilov

  October 18, 2005 at 10:53 am

  once again i have a Q about expressions,
  firt of all, in comp i have a slider wich is generating random numbers between 0 and 100 ,
  and also i have 8 solids, attached to objects in zaxwerks inv, and i want Z-3d-scale values of
  those solids to act like equalizer led, so i was thinking about expression for the Z-3d-scale
  of those solids wich will look something like this :

  temp = thisComp.layer(“slider”).effect(“Slider Control”)(“Slider”);
  temp2 = if(temp //HERE I DONT KNOW WHAT TO ENTER// = array (20, 100))100 else 0
  [100, 100, temp2]

  and now explanation to my heretical writings 😛
  i whant temp2 to be 100 when temp is in array between 20 and 100, when its below 20, temp2 is 0.

  i’m little lost in expression , so maybe it’s not properly wrighted, but way of thinking is good 😉

  cheers.

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