• Adobe After Effects Expressions

  Expression doesn’t work

  Posted by ‘SMR 겜댕 on February 11, 2021 at 11:19 am

  Before asking a question

  We ask for your understanding in advance for the part where you are not proficient in English.

  What I want to ask is this

  Put a keyframe in the A effect and control the speed of the keyframe with the slider control

  And this effect

  I want to be able to turn it on and off with a checkbox

  And when the check box is turned off, I want the keyframe position value set to remain unchanged.

  So I wrote the following expression

  The position value of the keyframe is

  Keep moving

  Oh it doesn’t move or it’s either

  It would be appreciated if you let me know which expression to use

  —————————————————————————-

  //This is the first try

  spd =effect(“Slider Control”)(“Slider”);

  accum = 0;

  cb = effect(“Checkbox Control”)(“Checkbox”);

  for (i = timeToFrames(inPoint); i <= timeToFrames(time); i++) {

  if (cb.valueAtTime(framesToTime(i))){

  accum += spd.valueAtTime(framesToTime(i));

  }

  }

  value + accum * thisComp.frameDuration;

  ——————————————————————————————–

  //This is the second attempt

  spd =effect(“slider control”)(“slider”);

  accum = 0;

  cb = effect(“checkbox control”)(“check”);

  for (i = timeToFrames(inPoint); i <= timeToFrames(time); i++) {

  if (cb.valueAtTime(framesToTime(i))==true){

  accum += spd.valueAtTime(framesToTime(i));

  }

  }

  value + accum *nearestKey(thisComp.frameDuration);

  //This expression does not move, but it does not move when the check box is activated.

  ———————————————————————————–

  //This is the third attempt

  spd =effect(“Slider Control”)(“Slider”);

  accum = 0;

  cb = effect(“Checkbox Control”)(“Checkbox”);

  for (i = timeToFrames(inPoint); i <= timeToFrames(time); i++) {

  if (cb.valueAtTime(framesToTime(i))==true){

  accum += spd.valueAtTime(framesToTime(i));

  }

  }

  value + accum * thisComp.frameDuration;

  //This also failed

  —————————————————–

  ‘SMR 겜댕 replied 5 years, 6 months ago 1 Member · 0 Replies
• 0 Replies

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