how to reference another comp

[Mike Clasby]

I Think the pickwhip is a pretty foolproof way. If you have the two comps open in the timeline window, and drag comp 2 off/up it will come detached and you’ll have two timeline windows showing. Now if you twirls down the same properties for both (say, S for Scale) then alt-click the Scale in comp 2 and pickwhip back to comp 1 you get:

comp(“Comp 1”).layer(“master”).scale

The name of the layer I pickwhipped to in comp 1 was “master”.

Similarly Opacity is:

comp(“Comp 1”).layer(“master”).opacity

This is AE6.5 syntax, I don’t know if there is a difference, just pickwhip for yourself. If you want to reset the timeline windows to for just one, drag the second back over the first. You can do the same with the
Comp Windows creating 2 views.

Here is a Script that creates expressions for effects that can be copy/pasted (or use presets) to layers throughout the Project that link back to effects in that original layer. Here’s the Cow thread for reference:

https://forums.creativecow.net/readpost/227/8341

Thought it might be useful.

[Chompy]

Thanks, The “double comp” trick seems to be what I’m after.
Thanks a bunch
cheers
Al

C4D R8 (core)
MAC OSX
512 MEG RAM