• Adobe After Effects Expressions

  How to customize time expression

  Posted by Stephane Audrier on October 23, 2012 at 1:33 pm

  Hi !

  Does anybody can help me ?

  I would like to start “time” expression (set on Y rotation property) at a specific frame (frame 346, fps=25) and with a specific starting value (Y Rotation = + 180°) and then multiply that value by -25/seconde (time*-25) ?

  How can I do that ?

  Thanks.

  S.A

  Stephane Audrier replied 13 years, 6 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  October 23, 2012 at 1:46 pm

  I’m not sure exactly what you’re asking for, but is this close?

  
startFrame = 346;
startVal = 180;

  tStart = framesToTime(startFrame);
if (time < tStart) startVal else startVal + (time-tStart)*25;

  Dan
• 

  Stephane Audrier

  October 23, 2012 at 2:29 pm

  Thank you very much Dan for your very quick answer !

  that’s it, just at the last line :

  startVal + (time-tStart)*–25;

  Great !!!
  thanks again.

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