• Adobe After Effects Expressions

  Simple scale expression but “Error: array piece can’t expand to more that 1 value”

  Posted by Brice Munn on February 14, 2020 at 1:18 pm

  Am I going mad? I’ve applied to following expression to shape layer/group/transform/scale.

  I get “Error: array piece can’t expand to more that 1 value” on the first line.

  If I arrange the expression to have [x,100]; on line one, and delete h=100; it works but x and y scale are returned as the slider multiplied with a wiggle (different wiggle for each).

  Curious as to what’s up with this.

  a=effect("Progress bar scale animation")("Slider")/100;
w=wiggle(50,100);
x=a*w;
h=100;

  [x,h];

  **Edit with solution**
  Answered my own question here, realised wiggle was returning an array. To fixed expression is (with some streamlining to remove the slider effect) is:

  Y=value[1];
  X=value[0]/100;
  W=wiggle(50,100)[0];

  [X*W,Y];

  Brice Munn replied 6 years, 3 months ago 1 Member · 0 Replies
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