• Adobe After Effects Expressions

  Buzz Word fade in/out

  Posted by Nino Vrana on June 2, 2009 at 9:30 am

  Hi,

  Can anybody help me modifying this “Buzz Word” expression?

  buzz_words = “One|Two|Three|Four|Five|Six|Seven|Eight|Nine|Ten”;
  split_buzz_words_array = buzz_words.split(‘|’);
  buzz_frame_rate = effect(“Buzz Frame Rate”)(1);
  buzz_frame = Math.floor(time * buzz_frame_rate);
  buzz_index = buzz_frame % split_buzz_words_array.length;
  split_buzz_words_array[buzz_index];

  Rather than jumping from one word to the next, I would like to be able to fade one word out and fade the next word in. Any help appreciated.

  Many thanks,
  Nino

  Nino Vrana replied 17 years, 3 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  June 2, 2009 at 1:38 pm

  I’d use something like this for the Source Text:

  buzzWords = “One|Two|Three|Four|Five|Six|Seven|Eight|Nine|Ten”;
  dur = 1;
  splitBuzzWords = buzzWords.split(‘|’);
  period = Math.floor(time/dur);
  splitBuzzWords[Math.min(buzzWords.length-1,period)]

  And this for the Opacity:

  dur = 1;
  fadeTime = .1;
  phase = time%dur;
  phase < fadeTime ? linear(phase,0,fadeTime,0,100) : linear(phase,dur-fadeTime,dur,100,0) You just need to make sure the duration (dur) is the same in both expressions. Dan
• 

  Nino Vrana

  June 2, 2009 at 2:23 pm

  Many thanks Dan!

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