• Adobe After Effects Expressions

  freeing the anchor point

  Posted by James Buttes on November 4, 2008 at 1:25 am

  position-((.5*[width,height,0])-anchorPoint)

  Hi all,

  I’m trying to make my anchor point animate-able in a layer’s local space, without changing the position of that layer. This way, I can animate the point around which the layer rotates.

  So far, I’ve got the aforementioned expression on the position property of the layer.

  This works as long as the layer isn’t rotated, but if I rotate the layer, then try to move the anchor point, the layer starts to move around. I expect there’s some type of layer space transform I should be using, but it’s a bit too complicated to get my head around. Any help would be greatly appreciated.

  Just to clarify, I want the anchor to be move-able as if it were an object on the surface of its layer.

  Thanks!

  James Buttes replied 17 years, 6 months ago 1 Member · 0 Replies
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