Linking position to mask path?

Forum|Forum|16 years ago
October 22, 2009
3 replies
8387 views

I know I can copy and paste a Mask Path to a layer's Position and vice versa.

But is there a way to link them live with an expression? I think I'm running into a problem with too many dimensions in an array -- I'm trying to link a Light's 3D position into a 2D Mask Shape (for Particular). I can copy and paste the motion path & mask shape between them just fine, but pickwhipping gives me an error.

Expressions

This topic has been closed for replies.

JohnyFive

Inspiring

Navarro, this makes me think of Mathias Mohl's Tracker2Mask Script, i'm wondering if that would work for it. Tracker2Mask - aescripts + aeplugins - aescripts.com

But i'm not sure.

N

Navarro ParkerAuthor

Inspiring

Does CS5 handle this any differently?

Dan Ebberts

Community Expert

No - sorry.

Dan

S

SonyGreen

Participant

I don't suppose this has changed since 2010? Thank you!

Dan Ebberts

Community Expert

Not directly, but there may be a work-around, depending on what you're trying to do. If you paste the path into the position property of a null, AE creates a smooth 2-second animation. You can like to the null's position and use a positon expression with the light (using valueAtTime()) to traverse the path on any timescale you want - stop, back up, etc. If what you're looking for is a live link between the path and the light though, then this doesn't help.

A script has access to all the mask stuff, so depending on exactly what you're trying to do, you could use a little helper script to update your light position keyframes after you edit the path.

Dan

N

Navarro ParkerAuthor

Inspiring

Thanks for the info. I'll post a script request at AEnhancers.com

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded