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precomps, expressions, and World space

COW Forums : Adobe After Effects Expressions

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Adam O'Hern
precomps, expressions, and World space
on Jun 9, 2015 at 3:37:49 pm
Last Edited By Adam O'Hern on Jun 9, 2015 at 7:16:47 pm

Hi all,

This forum is a fantastic resource. I use it heavily, and am very grateful!

Comp Structure:

comp "A"
- Null "C"
- Null "D"
- precomp "B"
- Null "E"

Assume that all items have been moved, rotated, and/or scaled in their respective contexts.

I need to dynamic parent Null 'E' to Null 'D'. Put differently, if I translate Null 'D' within comp 'A', Null 'E' will move along with it.

In my limited knowledge of AE, I think I need to

1) get the 'toComp' position of Null 'D' within Comp A
2) pipe that value into precomp 'B'
3) get a 'fromComp' value to pipe into Null 'E'

If I've done it properly, Null E should track exactly with Null D in Comp A space.

Make sense?

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