Start learning with our library of video tutorials taught by experts. Get started

After Effects Apprentice 12: Tracking and Keying
Illustration by John Hersey

Creating 3D objects (new in CS6)


From:

After Effects Apprentice 12: Tracking and Keying

with Chris Meyer and Trish Meyer

Video: Creating 3D objects (new in CS6)

Now that After Effects has finished tracking and solving this scene, I've decided I want to put the poster on this side of the building. So I'm going to move my time indicator to a point where I had the clearest view of that surface. There's a few different ways to define what point in the 3D space you want to put your new layer to composite into the scene. One is just by moving the cursor over the Composition Panel while the 3D Camera Tracker is selected. If the Camera Tracker is not selected, your Track Points disappear. When it is selected, you get to see them and you get some interactive help in placing your points.
Expand all | Collapse all
  1. 9m 2s
    1. Welcome
      2m 38s
    2. The Tracker panel
      4m 24s
    3. Using the exercise files
      2m 0s
  2. 13m 25s
    1. Warp Stabilizer basics
      5m 59s
    2. Warp Stabilizer advanced parameters
      7m 26s
  3. 30m 6s
    1. Setting up a stabilization
      2m 57s
    2. Track points explained
      5m 48s
    3. Performing a track
      5m 11s
    4. Applying a stabilization
      2m 42s
    5. Cleaning up the results of a stabilization
      3m 0s
    6. Performing a motion track
      5m 57s
    7. Applying the results
      4m 31s
  4. 13m 48s
    1. The Radio Waves effect
      4m 16s
    2. Tracking the mountain
      5m 31s
    3. Compositing the effect
      4m 1s
  5. 24m 28s
    1. Perspective tracking overview
      2m 40s
    2. Tracking to a corner pin
      7m 1s
    3. Improving the composite
      5m 39s
    4. Tracking with mocha-AE
      9m 8s
  6. 31m 49s
    1. Tracking in 3D (new in CS6)
      4m 31s
    2. Creating 3D objects (new in CS6)
      5m 12s
    3. Hanging a poster (new in CS6)
      8m 8s
    4. Adding text (new in CS6)
      5m 33s
    5. Using shadow catchers (new in CS6)
      8m 25s
  7. 16m 46s
    1. Tracking dots
      5m 43s
    2. Dealing with obscuration
      5m 12s
    3. Cleaning up the stabilization
      5m 51s
  8. 12m 40s
    1. Basic keying
      7m 20s
    2. Refining the key
      5m 20s
  9. 13m 32s
    1. Quizzler challenges
      3m 35s
    2. Quizzler #1 solution: Stabilization plus masking
      2m 58s
    3. Quizzler #2 solution: Stabilization plus tracking
      2m 50s
    4. Quizzler #3 solution: Copying a camera's motion
      4m 9s
  10. 12m 28s
    1. Tracking for multiple effect points
      4m 44s
    2. Converting to ray-traced 3D (new in CS6)
      7m 44s
  11. 23m 59s
    1. Legacy tracker advice
      8m 14s
    2. Tracking interlaced sources
      5m 59s
    3. Using garbage masks for keying
      4m 51s
    4. Using the Rolling Shutter Repair feature (new in CS6)
      4m 55s

Watch this entire course now—plus get access to every course in the library. Each course includes high-quality videos taught by expert instructors.

Become a member
Please wait...
After Effects Apprentice 12: Tracking and Keying
3h 22m Intermediate Nov 23, 2011 Updated Dec 12, 2012

Viewers: in countries Watching now:

Explore how to use the motion tracker and stabilizer built into After Effects and shows how to handle a variety of shots. Author Chris Meyer leads a quick tour of the third-party software mocha and demonstrates the workflow for The Foundry's KEYLIGHT, both bundled with After Effects. The course also covers tracking a greenscreen shot with a handheld camera and replacing its background.

The After Effects Apprentice videos on lynda.com were created by Trish and Chris Meyer and are designed to be used on their own and as a companion to their book After Effects Apprentice. We are honored to host these tutorials in the lynda.com Online Training Library®.

Topics include:
  • Understanding motion stabilization and keying
  • Performing a track
  • Applying tracking to effects
  • Keying with KEYLIGHT
  • Replacing images
  • Improving the composite
  • Garbage masking
  • Dealing with interlaced footage
Subjects:
Video Motion Graphics Visual Effects
Software:
After Effects
Authors:
Chris Meyer Trish Meyer

Creating 3D objects (new in CS6)

Now that After Effects has finished tracking and solving this scene, I've decided I want to put the poster on this side of the building. So I'm going to move my time indicator to a point where I had the clearest view of that surface. There's a few different ways to define what point in the 3D space you want to put your new layer to composite into the scene. One is just by moving the cursor over the Composition Panel while the 3D Camera Tracker is selected. If the Camera Tracker is not selected, your Track Points disappear. When it is selected, you get to see them and you get some interactive help in placing your points.

You need a minimum of three points to define a plane that After Effects will then place your new object on. As you drag your cursor between points, After Effects will automatically triangulate the three closest points and suggest those as possible places to create a plane. As you do so, look at the orientation of this bull's eye compared to the perspective of this actual scene. For example, down here the bull's eye looks like it's titled forward compared to that side of the building, so that would not be a good set of points to select.

However, something up here looks to have a better perspective compared to how the building is actually oriented. So this might make a good set of points whereas this trio obviously would not make a good set of points. So this is one approach that After Effects triangulate three points, click once and After Effects will select those three points as candidates to go ahead and create your new surface. Another approach is just to manually lasso a large number of points on the surface that you want to use.

After Effects will average together those points, throw out outliers that don't seem to agree with the other ones and again give you your target to work with. A third approach is to manually select the points yourself. Select one point to start, then Shift+Click additional points to define your plane, and select at least three. Points that are further apart create a more accurate plane. The closer they are the more of a chance you get a rogue tilt in your plane. Further apart, you will have a better orientation and you'll see this bull's eye looks like it's pretty well-oriented against the side of this building.

I tend to use a combination of these techniques. I'll select four apparently good points that are far apart and then hold the Shift key and lasso additional points in the core of that surface just to get more data to average together. Once you've done that you can hover your cursor over the bull's eye until you see this little four-headed arrow, which indicates you can move the bull's eye, move it to the center of where you want to place your new surface or your new layer.

I want to hang my poster pretty high in the side of this building so I'm going to choose around there. Another good habit to get into is to initially resize your bull's eye to roughly match the scale of the object you want to put on this layer. This is not so important if you're using no logic. It's more important if you're directly creating text. Neither case is a good habit to get into. Place your cursor over the center of the bull's eye, hold down Option on Mac or Alt on Windows and you'll see the cursor changes to a two-directional arrow. Scrub your bull's eye until it's roughly the size you want, in my case covering this side of the building, and I'll interactively reposition my bull's eye to center it and then resize it to make it cover that wall.

You can also resize your target over here in the Effect Controls Panel. Once you have a nice bull's eye target, right-click anywhere inside this ghosted white area that defines your new plane. Doing so will give you a list of options on what After Effects will create. Since I've not yet created a camera in the scene, all of my options will include, and Camera. But you see you can Create Text, Solid, Null or Shadow Catcher, which we will discuss a few movies from now, that based on the location of this bull's eye.

Or alternatively, you can create individual Text, Solid or Nulls for each of these points you have selected as opposed to the position of the bull's eye. In my case, I just need one layer, preferably a Null object, which I can then parent my poster to. So I'll select Null and Camera. You'll see a new Null object has been added to my scene as well as a 3D camera, which has been animated to match the camera's movement in this scene. I'll press U to reveals keyframes and you'll see After Effects is tracking its position, its rotation and its zoom in case the operator had a zoom rather than fixed lens and was altering the zoom during the course of this shot.

Now that we have a Null object in the scene, we can attach our own layers to it, and that's what we will do in the next movie.

Find answers to the most frequently asked questions about After Effects Apprentice 12: Tracking and Keying.


Expand all | Collapse all
Please wait...
Q: This course was updated on 12/12/2012. What changed?
A: We added new chapters on the Warp Stabilizer and the exciting new 3D Camera Tracker, and new movies on the Tracker panel, converting to ray-traced 3D, and rolling shutter repair, all new features introduced in After Effects CS6. In addition, there are new sets of exercise files designed for After Effects CS5.5 and After Effects CS6 and a companion movie that shows our premium subscribers how to use the exercise files.
Share a link to this course
Please wait... Please wait...
Upgrade to get access to exercise files.

Exercise files video

How to use exercise files.

Learn by watching, listening, and doing, Exercise files are the same files the author uses in the course, so you can download them and follow along Premium memberships include access to all exercise files in the library.
Upgrade now


Exercise files

Exercise files video

How to use exercise files.

For additional information on downloading and using exercise files, watch our instructional video or read the instructions in the FAQ.

This course includes free exercise files, so you can practice while you watch the course. To access all the exercise files in our library, become a Premium Member.

Upgrade now

Are you sure you want to mark all the videos in this course as unwatched?

This will not affect your course history, your reports, or your certificates of completion for this course.


Mark all as unwatched Cancel

Congratulations

You have completed After Effects Apprentice 12: Tracking and Keying.

Return to your organization's learning portal to continue training, or close this page.


OK
Become a member to add this course to a playlist

Join today and get unlimited access to the entire library of video courses—and create as many playlists as you like.

Get started

Already a member?

Become a member to like this course.

Join today and get unlimited access to the entire library of video courses.

Get started

Already a member?

Exercise files

Learn by watching, listening, and doing! Exercise files are the same files the author uses in the course, so you can download them and follow along. Exercise files are available with all Premium memberships. Learn more

Get started

Already a Premium member?

Exercise files video

How to use exercise files.

Ask a question

Thanks for contacting us.
You’ll hear from our Customer Service team within 24 hours.

Please enter the text shown below:

The classic layout automatically defaults to the latest Flash Player.

To choose a different player, hold the cursor over your name at the top right of any lynda.com page and choose Site preferencesfrom the dropdown menu.

Continue to classic layout Stay on new layout
Welcome to the redesigned course page.

We’ve moved some things around, and now you can



Exercise files

Access exercise files from a button right under the course name.

Mark videos as unwatched

Remove icons showing you already watched videos if you want to start over.

Control your viewing experience

Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.

Interactive transcripts

Click on text in the transcript to jump to that spot in the video. As the video plays, the relevant spot in the transcript will be highlighted.

Thanks for signing up.

We’ll send you a confirmation email shortly.


Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

Keep up with news, tips, and latest courses with emails from lynda.com.

Sign up and receive emails about lynda.com and our online training library:

Here’s our privacy policy with more details about how we handle your information.

   
submit Lightbox submit clicked