New Feature: Playlist Center! Pick a topic and let our playlists guide the way.

Easy-to-follow video tutorials help you learn software, creative, and business skills.Become a member

Using the exercise files

From: VFX Techniques: Tracking Objects onto a Face

Video: Using the exercise files

If you're a premium member of the lynda.com library, you have access to the Exercise Files used throughout this title. The Exercise Files are arranged in several additional folders within the Exercise Files folder like this one right here. The files are divided between After Effects files, aesthetic artwork created in Photoshop, video footage converted to image sequences, Mocha files, and also some Precomps we'll create during the course.

Using the exercise files

If you're a premium member of the lynda.com library, you have access to the Exercise Files used throughout this title. The Exercise Files are arranged in several additional folders within the Exercise Files folder like this one right here. The files are divided between After Effects files, aesthetic artwork created in Photoshop, video footage converted to image sequences, Mocha files, and also some Precomps we'll create during the course.

You will be asked to import various files into After Effects throughout this course. I'll indicate the file name and which folder it's in. We'll use the files to build a composition in which we add a heads-up display and electronic tattoo to the face of an actress. Now, I do want to mention several things about Mocha. For one, we're using Mocha for After Effects for version CS6, in which case you have to launch Mocha from After Effects. Let me show you how to do that. I've opened After Effects, and I have a simple composition in which I have a single layer.

What you can do is select a layer, go to Animation > Track in mocha AE. This opens the program. Now, it's going to want to create a new project based on that layer you had selected. However, you can just click Cancel, and it leaves the project empty. However, you can go up to Open, and open a file, for instance a file in the Mocha Files folder. Before I open, I'll mention one other aspect of Mocha, and that's the fact that it creates automatic backup files.

Here's an example, 3_2.autosave.mocha. This is nice in case you lose a file by accident. Now, you don't have to keep these, but they're there just in case. Now, if you save often on your own, hopefully these won't be necessary. In any case, I'm just going to open one of these Mocha files so you can see it. There we go, ready to work! Another potential problem with Mocha is if you move some of the files around, you take those Exercise Files and you put them in a new location. Mocha might get confused in terms of where those files are, or where the folders are.

I'll demonstrate that. I am going to go to a different drive and open a file. You may see this, 'Relink clip'. It's been unable to find where the Exercise Files are, in this case, image sequence. What you can do is click the Choose button, and go to the folder where those images reside. In this case, they're in my Precomps > PrepTrack folder. Before I select the first frame of the sequence, and I need to select the first frame, I want to mention the Results folder.

When you create a new Mocha file, you will sometimes get a Results folder close to the place where the image sequence resides, if you use an image sequence to motion track. Mocha uses this discretely, you don't have to use it yourself. Now, if you make a new project over top of the old project, it's going to actually want to overwrite this. Generally, it's okay to say Yes and overwrite. In any case, I'm going to relink my footage, I'll click on my first PrepTrack image, and click Open. Once that's listed, I can click Okay. It reloads the proper image sequence in the proper location, and then you're ready to work.

Now, if you don't have access to the Exercise Files, you can still apply the discussed techniques on your own assets. So, let's get started.

Show transcript

This video is part of

Image for VFX Techniques: Tracking Objects onto a Face
VFX Techniques: Tracking Objects onto a Face

30 video lessons · 5830 viewers

Lee Lanier
Author

 

Start learning today

Get unlimited access to all courses for just $25/month.

Become a member
Sometimes @lynda teaches me how to use a program and sometimes Lynda.com changes my life forever. @JosefShutter
@lynda lynda.com is an absolute life saver when it comes to learning todays software. Definitely recommend it! #higherlearning @Michael_Caraway
@lynda The best thing online! Your database of courses is great! To the mark and very helpful. Thanks! @ru22more
Got to create something yesterday I never thought I could do. #thanks @lynda @Ngventurella
I really do love @lynda as a learning platform. Never stop learning and developing, it’s probably our greatest gift as a species! @soundslikedavid
@lynda just subscribed to lynda.com all I can say its brilliant join now trust me @ButchSamurai
@lynda is an awesome resource. The membership is priceless if you take advantage of it. @diabetic_techie
One of the best decision I made this year. Buy a 1yr subscription to @lynda @cybercaptive
guys lynda.com (@lynda) is the best. So far I’ve learned Java, principles of OO programming, and now learning about MS project @lucasmitchell
Signed back up to @lynda dot com. I’ve missed it!! Proper geeking out right now! #timetolearn #geek @JayGodbold

Are you sure you want to delete this note?

No

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
Terms and conditions of use

We've updated our terms and conditions (now called terms of service).Go
Review and accept our updated terms of service.