Creative COW SIGN IN :: SPONSORS :: ADVERTISING :: ABOUT US :: CONTACT US :: FAQ
Creative COW's LinkedIn GroupCreative COW's Facebook PageCreative COW on TwitterCreative COW's Google+ PageCreative COW on YouTube
LIBRARY:TutorialsVideo TutorialsReviewsInterviewsEditorialsFeaturesBusinessAuthorsRSS Feed

Child Tracking Part 1

COW Library : Adobe After Effects Tutorials : Carl Larsen : Child Tracking Part 1
Share on Facebook
CreativeCOW presents Child Tracking Part 1 -- Adobe After Effects Tutorial


Telescope Media Group
St. Cloud Minnesota USA

©2009 CreativeCOW.net. All rights reserved.


In this video tutorial, Creative COW contributing editor Carl Larsen shows you how to track the position of a parented layer using expressions in Adobe After Effects.



Play Video Tutorial


  View 14 Comment(s)

  Adobe After Effects Tutorials   •   Adobe After Effects Forum
Reply   Like  
+3
Share on Facebook
Comments

Re: Child Tracking Part 1
by heebok lee
thanks for the great tutorial.

i have a quick question. towards the end i saw your 3d version with particular. how do you assign z position in particular? particular has z position in separate parameter and when i use toWorld expression got an error message saying vector length doesn't match. here is my set up.

in particular...

Position XY
c=thisComp.layer("moon");
c.toWorld(c.transform.anchorPoint); //this works fine!

Position Z
c=thisComp.layer("moon");
c.toWorld(c.transform.anchorPoint[2]); //this line gives me an error. i was trying to grab only 'z'value from 'moon' anchor point.

any advice?

hb
@heebok lee
by heebok lee
i can use lights for particular to trace but would like to know in expressions.
Re: Child Tracking Part 1
by Carl Larsen
I'm glad to help. It's always nice to hear people are actually working through the concepts in a tutorial themselves, versus simply watching along and forgetting how to apply the concept.

Thanks!

Carl Larsen

TelescopeMediaGroup.net
Re: Child Tracking Part 1
by Carl Larsen
Shihab

Are you working with a non-square pixel aspect ratio composition?

Carl Larsen

TelescopeMediaGroup.net
@Carl Larsen
by shihab hameed
Dear Carl Larsen

I re-checked the pixel aspect ratio. It was 0.9; I changed the aspect ratio to square and all its working fine. once again, Thank you.
Best regards
Shihab
Re: Child Tracking Part 1
by shihab hameed
Thank you for this good tutorial. I did as it was. But there is a problem- the null object (eg. Orbit) stretches while it rotates. the linked circles also get oval shape during the animation. the beginning and ending shape is circle; but the shape will change to stretched oval when it rotates.I tried in different machines but the problem remaining.
Please advice me..
This is one of those tips
by Anders Hattne
This is one of those tips I have to come back to a few times until I completely understand the principle!!

Thanks for the tip!
Trace is backwords
by Heather Hass
Hello!

I'm just doing this tutorial and im at the end, but unfortunately, write-on trace writes backwords...:(

Wondering if you had any suggestions...i triple checked the codes and i know i have them correct...

the path of the moon sprouts out of the moon then the moon follows the path instead of creating a path...hope that makes sense!

any help would be greatly appreciated! ill give you a 5th cow when i can get this guy working!
Child Tracking Part 1
by Carl Larsen
http://podcasts.creativecow.net/after-effects-tutorials-podcast/child-track...

The High-Res Version comes out a week later than the podcast. Enjoy!
Child Tracking Part 1
by Jim Dodson
Thanks Carl -- but where's part two?!!
Child Tracking Part 1
by James Hooey
One of the best tutorials in some time! Not for it's visual impact but for clearly explaining the layer and world space principles and showing some usefull expression code.
Child Tracking Part 1
by Paul Bertham
Plus 5 Cows ;)
Child Tracking Part 1
by Paul Bertham
stunning!

thanks for that one mate!
Child Tracking Part 1
by Gyorfi Szilard
Good tutorial,


Thanks Carl


Related Articles / Tutorials:
Adobe After Effects
Child Tracking Part 2

Child Tracking Part 2
  Play Video
In this video tutorial, Creative COW contributing editor Carl Larsen shows you how to use the track a child expression to create an interesting title sequence in Adobe After Effects.

Tutorial, Video Tutorial
Adobe After Effects
LightGrid Script and Demo Tutorial Part TWO with New Feature

LightGrid Script and Demo Tutorial Part TWO with New Feature
  Play Video
LightGrid Script creator Brian Charles demonstrates his newly modified After Effects script for rigging lights in grids and circles. The modified script with the new feature, which adds the ability to enable individual light colors through a checkbox in the effect control panel, is available as a free download in the Project Files folder.

Tutorial, Video Tutorial
Adobe After Effects
Green Screen Billboard Compositing

Green Screen Billboard Compositing
  Play Video
This After Effects tutorial demonstrates how to simulate augmented reality centered around a city billboard by compositing green screen footage and editing it into the scene.

Tutorial, Video Tutorial
Adobe After Effects
After Effects Handwriting Tutorial

After Effects Handwriting Tutorial
  Play Video
This tutorial will show you how to create an animation of a marker writing out a logo or a few words, followed by a slick reveal to an actual logo.

Tutorial, Video Tutorial
Adobe After Effects
LightGrid Script and Demo Tutorial

LightGrid Script and Demo Tutorial
  Play Video
LightGrid Script creator Brian Charles demonstrates his After Effects script for rigging lights in grids and circles. The script is available as a free download in the Project Files folder.

Tutorial, Video Tutorial
Adobe After Effects
mocha Tracks The Wolf of Wall Street

mocha Tracks The Wolf of Wall Street

With multiple VFX Oscars (Hugo and Titanic, plus a nomination for Apollo 13) plus a couple of Emmys (Star Trek: The Next Generation and Star Trek: Deep Space Nine) under his belt, the most remarkable thing about Rob Legato's latest VFX extravaganza is that it doesn't appear to have any VFX at all! Martin Scorsese's The Wolf of Wall Street is a masterpiece of what has become known as invisible effects, and this article from our friends at Imagineer, highlighting Rob's work with mocha, is a real eye-opener.

Editorial, Feature
Adobe After Effects
Klip Collective Pushes Film Into New Spaces At Sundance

Klip Collective Pushes Film Into New Spaces At Sundance

Projection mapping installation relies on Adobe Creative Cloud tools to create stunning visuals for the Sundance Film Festival entry, "What's He Building in There."

Editorial, Feature, People / Interview
Adobe After Effects
Joseph Kosinski’s Film “Oblivion” Showcases Elegant Effects

Joseph Kosinski’s Film “Oblivion” Showcases Elegant Effects

World‐class user interface designers, graphic artists, and animators create crisp, timeless visual elements for the sci-fi film starring Tom Cruise and Morgan Freeman, Oblivion. Kosinski turned to Bradley G. Munkowitz (GMUNK), whom he'd previously worked with on Tron Legacy. As lead interface graphic designer, GMUNK then pulled a team together that included Interface Graphic Designers Joseph Chan (Chanimal) and Jake Sargeant, and Interface Animators Alexander Perry (AP), Navarro Parker (Nav), and David Lewandowski (D-Lew). They were happy to reunite to share how much fun they had creating the 2D effects for the film using an Adobe workflow.

Editorial, Feature, People / Interview
Adobe After Effects
VFX & Motion Graphics on Star Trek: Into Darkness

VFX & Motion Graphics on Star Trek: Into Darkness

Andrew Kramer of Bad Robot and author/owner of the site Video Copilot was tapped to create more than 30 title sequences for the resurrection of the classic science fiction franchise with Star Trek: Into Darkness, while the OOOii team created stunning graphics and heads-up displays for the blockbuster film. OOOii CEO Kent Demaine, Lead Designer Jorge Almeida and Andrew Kramer shared their great experiences working on the latest seminal Star Trek film.

Editorial, Feature, People / Interview
Adobe After Effects
Delivering Content for TV's Top Shows

Delivering Content for TV's Top Shows

Delivering content for some of television's top shows, including House of Lies, Grey's Anatomy, and, of course The Walking Dead, Stargate Studios continues to break the mold of how feature films, television series, electronic games, and commercials are generated. In this article, read how Adobe Creative Cloud and automation create a competitive edge for the iconic production studio, Stargate Studios.

Editorial, Feature, People / Interview
MORE


FORUMSTUTORIALSFEATURESVIDEOSPODCASTSEVENTSSERVICESNEWSLETTERNEWSBLOGS

Creative COW LinkedIn Group Creative COW Facebook Page Creative COW on Twitter
© 2014 CreativeCOW.net All rights are reserved. - Privacy Policy

[Top]