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Activity Forums Adobe After Effects how to make a period (full stop) blink?

  • how to make a period (full stop) blink?

    Posted by Scyld on May 6, 2008 at 1:27 pm

    hi, i’m using the typewriter effect in CS3 and i’m trying to work out how to make the period at the end of the sentence blink for a few seconds while the user reads the text and the new text comes in to replace it. is there any easy fixes, or does this involve expressions?
    – apologies if this has been posted before…

    Mohit Singh replied 14 years, 10 months ago 6 Members · 9 Replies
  • 9 Replies
  • Mike Park

    May 6, 2008 at 3:04 pm

    why don’t you try keyframing the opacity. You could use an expression, but don’t need to. Just put the period on a seperate layer and animate the opacity

    best of luck

  • Scyld

    May 6, 2008 at 3:26 pm

    thanks. i was thinking of that, but i’ve got approx 50 different instances of text with blinking periods to do, so that’s 50+ layers to deal with… any ideas how to change the opacity of just the period using the text effect controls? i couldn’t figure out how to isolate the period.

  • Scyld

    May 6, 2008 at 3:38 pm

    makes sense. many thanks…

  • Paolo Ciccone

    May 7, 2008 at 1:00 am

    In your text layer with the period type “t” for transparency, Alt/Option click on the stopwatch to access the formula, enter this:

    x = Math.sin(time*10);
    if (x<0) 0 else 100

    You can use smaller multipliers for longer interval between blinks


    Paolo Ciccone https://www.paolociccone.com
    Hellriser Digital
    Santa Cruz, CA

  • Scyld

    May 7, 2008 at 1:24 pm

    that works great for the whole text, but how do i isolate the “.” ?

  • Paolo Ciccone

    May 7, 2008 at 3:24 pm

    Can you create a text layer just for the period?


    Paolo Ciccone https://www.paolociccone.com
    Hellriser Digital
    Santa Cruz, CA

  • Efe Aydal

    December 25, 2010 at 1:23 am

    Thanks a lot. I had the same question.

  • Ric Vieira

    May 19, 2011 at 3:04 am

    Wow, it works a treat! – absolutely genius.

    grazie mille!!

  • Mohit Singh

    July 20, 2011 at 10:33 am

    thats what v want sir. thanks a lot

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