[bslaybaugh] “I am working on a project with another AE artist and he is basically “rigging” the interface of this device for me and I don’t want to have to re-import his project and re-link everything any time he makes a change. Thoughts?”
Like Dave said, there’s no such thing as external reference in AE.
But given the rigging/animating split in your workflow, here’s a suggestion: have your rigger build all your controls as expression controls in a null object, and have him or her link the keyframeable properties to those controls.
Any time the underlying rig is tweaked, you’ll have to re-import into your own AE project, but you’ll be able to copy and paste the keyframes from your old controls properties onto the new ones.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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