• Adobe After Effects Expressions

  Glow Smooth Random

  Posted by Guillaume Cardon on January 31, 2020 at 3:24 pm

  Hello,

  I made a classic bulb light, and i want to apply a glow to simulate light .
  I applied an “Outer Glow” to the layer, and i want to play randomly with the “spread” property to set a value between 22 and 33% to simulate intensity light variation

  I think i need to use “wiggle”, “random” or “smooth” expression, but i fail to made a random smooth fade in/out between 22 and 33 all along the time.

  I found some topics about this, but it doesn’t work.
  I try :
  – https://forums.creativecow.net/thread/227/24412
  – https://forums.creativecow.net/docs/forums/post.php?forumid=227&postid=11294&univpostid=11294&pview=t
  – and others..

  Could you help me ?

  Thanks

  Guillaume Cardon replied 6 years, 8 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  January 31, 2020 at 5:41 pm

  Try this:

  min = 22;
  max = 33;
  freq = 1;
  avg = (max+min)/2;
  avg + wiggle(freq,(max-min)/2)-value

  Dan
• 

  Guillaume Cardon

  February 1, 2020 at 2:30 pm

  Perfect, thanks Dan !

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