• Adobe After Effects Expressions

  Expressions randomly disable themselves

  Posted by Matt Fletcher on May 26, 2010 at 7:22 am

  Hi everyone,

  I’m in desperate need of some help, as I have my university final project in in 8 hours and need to render and export a massive file :/

  Basically I’m controlling a Particular system using audio amplitude. I’ve chosen to convert audio to keyframes, which creates a slider where i’ve added the expression “linear(value,0,50,0,300)”. I then have a light, which is named Emitter in order to control the particle system. On the emitter I have the expression:

  temp = thisComp.layer(“AMP 2”).effect(“Both Channels”)(“Slider”)/3+250;
  zw=wiggle(2,100);xw=wiggle(2,thisComp.layer(“WiggleSlider”).effect(“Slider Control”)(“Slider”));
  [xw[0], temp, zw[2]]

  With wiggleslider being a slider used to affect the wiggle amount. Now it all works perfectly well, I have one account of this within the main composition and several versions within precompositions. However, the problem is that the expressions keep CONTINUOUSLY switching themselves off, with no errors or anything, no yellow triangle and exclamation mark, nothing. They just disable themselves and I have to manually enable them all again. It’s very annoying because I will ram preview or start exporting and some of them will switch off, which ruins the whole effect. Any ideas why? All help will be appreciated! 🙂

  Thanks,

  Matt

  Seb Melm replied 16 years, 2 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Seb Melm

  May 31, 2010 at 1:59 pm

  I seem to have the same problems with picwips….

  Mooooooooooo…!

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