Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Adobe After Effects Expressions random brightness

  • Posted by Boo-yah on April 1, 2005 at 12:59 pm

    Is there any way to make an effect make random values through a whole video clip?, in this case i want brightness to jump up and down through a whole movieclip.

    thx!!

    Serge Hamad replied 19 years ago 3 Members · 4 Replies
  • 4 Replies
  • Michael Szalapski

    April 1, 2005 at 1:19 pm

    Just add a random opacity expresssion to your adjustment layer.

    – The Great Szalam
    (The ‘Great’ stands for ‘Not So Great)

    No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

  • Serge Hamad

    April 1, 2005 at 1:27 pm

    Hi,

    Just apply the Brightness/Contrast filter and add a random expression to the brightness parameter:
    random(0,100)
    Play with the values to taste.

    Salut.
    Serge

  • Boo-yah

    April 1, 2005 at 4:19 pm

    eh, yea.. did i mention i’m not very good in AE, guess not 🙂
    how do I ad this expression?

    thx!

  • Serge Hamad

    April 1, 2005 at 10:45 pm

    Hi,

    Select the Brightness parameter of your effect in the Timeline then Shift+alt+= You will then see some highlighted text in the Timeline. Replace that text with the mentioned expression.

    Salut.
    Serge

We use anonymous cookies to give you the best experience we can.
Our Privacy policy | GDPR Policy