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Can you track a layer inside a PRECOMP?

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James CarverCan you track a layer inside a PRECOMP?
by on Apr 30, 2016 at 10:31:48 pm

I have a project where I have film footage on my main timeline and I have a 3d animation that is in a precomp since it has multiple image sequence layers. I need to track the 3d model's position so that I can make other elements on my main timeline (fire, sparks, etc) seem like it's attached to it. Am I able to have a null object OUTSIDE the 3d model's precomp that is parented to the tracking data INSIDE the precomp? If so, how?

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Soham JaniRe: Can you track a layer inside a PRECOMP?
by on Apr 30, 2016 at 11:42:44 pm

I say give it a shot. If it doesn't work, come back.

"It's all around us Neo, temporary constructs of time....."


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Walter SoykaRe: Can you track a layer inside a PRECOMP?
by on May 1, 2016 at 9:50:17 am

[James Carver] "I need to track the 3d model's position so that I can make other elements on my main timeline (fire, sparks, etc) seem like it's attached to it."

If you can export the position data from the 3D application, you can avoid tracking entirely and get perfectly accurate position data for your composite.


[James Carver] "Am I able to have a null object OUTSIDE the 3d model's precomp that is parented to the tracking data INSIDE the precomp? If so, how?"

A layer's parent must be in the the same comp.

However, you could tie the position of one layer in one comp to another layer in a different comp via expressions.

Walter Soyka
Designer & Mad Scientist at Keen Live [link]
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
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