• Adobe After Effects Expressions

  Infinite scaling

  Posted by Deleted User on March 11, 2016 at 10:35 pm

  What would I need to change to the expression below to keep infinitly scaling over time? I want to maintain the speed of a scale from 50% to 51% over 1 second on several photos.Hopefully I’m describing that correctly.

  startScale = 50; // percent of Scale at start
  endScale = 51; // percent of Scale at end
  scaleUpTime = 1; // time to scale up from inPoint in seconds

  s = ease(time,inPoint,inPoint+scaleUpTime,startScale,endScale);

  [s,s]*value[0]/100

  thanks
  Lee

  Lee
  SAMDOG Digital Post

  Calgary, Alberta based Post Production Specialist & visual problem solver. Fluent in Avid, Premiere Pro, After Effects, yada, yada, yada.
  Available for hire.
  Calgary, Alberta YYC · tinyurl.com/6vgfa3f

  Roei Tzoref replied 9 years, 11 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Deleted User

  March 11, 2016 at 11:02 pm

  Figured it out.

  // Throw (scale at a constant speed without keyframes)
  veloc = 1; //horizontal velocity (pixels per second)
  x = scale[0] + (time – inPoint) *veloc;
  y = scale[0] + (time – inPoint) *veloc;
  [x,y]

  Lee
  SAMDOG Digital Post

  Calgary, Alberta based Post Production Specialist & visual problem solver. Fluent in Avid, Premiere Pro, After Effects, yada, yada, yada.
  Available for hire.
  Calgary, Alberta YYC · tinyurl.com/6vgfa3f
• 

  Roei Tzoref

  September 22, 2016 at 8:47 pm

  thanks Lee. this helped me 🙂

  Roei Tzoref
  After Effects Artist & Instructor
  ♫ Ae Blues Tutorials

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