• Adobe After Effects Expressions

  How to change scale by distance from camera

  Posted by Randy Mcwilson on February 24, 2007 at 6:58 pm

  I have a 3D comp and I want to make an object grow(beginning at 0%) as the camera gets closer, up to a max of 100% scale.

  Any way to accomplish this using expressions?

  Thanks

  Randy Mcwilson replied 19 years, 5 months ago 1 Member · 1 Reply
• 1 Reply

• 

  Randy Mcwilson

  February 25, 2007 at 12:37 am

  Just found a way

  d = toWorld(anchorPoint) – thisComp.activeCamera.toWorld([0,0,0]);
  distance=length(d);
  linear(distance, 0, MaxDist, [maxScale,maxScale,maxScale], [0,0,0]);

  Where MaxDist=distance in pixels to begin scaling

  maxScale=largest percentage to scale item

  works great

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