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alexcristo
Inspiring
April 8, 2024
Question

Using null object to change nested layer position

  • April 8, 2024
  • 2 replies
  • 539 views

Hello. I've pick-whipped a layer's position to a null object a few levels up in the hierarchy of nested compositions. Adjusting the null's position moves the layer as expected until I create a keyframe, then it stops working.

I'm not sure if this matters, but I'm working on an animation where comps of a character's face orientations (profile, 3/4s, forward) are nested inside a comp with a duration of one frame and staggared by one frame. I've time-remapped the upper comp to control which orientation is being shown.

Any help would be appreciated. Thanks.

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2 replies

Mylenium
Mylenium
Legend
April 8, 2024

Agree with Dan. You probably run into a "negative time" issue where the effective start time after all the nesting and arranging layers ends up being below zero and then of course nothing happens. You have to account for that with some expressions or restructuring the project.

 

Mylenium

Dan Ebberts
Community Expert
Dan EbbertsCommunity Expert
Community Expert
April 8, 2024

Generally, you run into issues like this if one or more of the layers in the hierarchy have a starting time that is offset from time 0 in their comp. The expression has to compensate for any such offsets. The exact expression depends on the comp/layer names, so a detailed description of the hierachy would be helpful.

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