In this tutorial you learn how to use After Effects to turn you arm into a cyborg arm. We use MochaAE (which is included in After Effects) to track the motion and perspective distortion of the arm and then do the compositing in After Effects.
Things to learn in this After Effects tutorial:
- Learnin how to track the movement of the skin and the bone below it independently of each other.
- Learn why the first point makes your composite much more realistic.
- Learn how to change your prespective and work in a stabilized and undistorted precomp (a.k.a. inverse tracking).
- Learn how to identify cyborg arms hiding in your furniture.
After Effects Project Download
tut-cyborg-arm.zip (3,37 MB)


Comments
Werde das bei Gelegenheit mal probieren.
Die Videos sind wirklich gut, villeicht sollte die Ubersicht am Anfang kürzer ausfallen. Man merkt ja schon worums geht. ;)
Dein Englisch klingt nicht so gut aber sonst erreicht ihr ja überhaupt kein internationals Publikum.
Danke für dieses Video!
Grüße aus Hamburg
Wir überlegen, die Tutorials demnächst auf Deutsch und Englisch zu produzieren. Besteht daran Bedarf? Wer hat Interesse?
Von mir aus könnt ihr euch die Mühe auch sparen ;)
I will be downloading your scripts soon.
I will like to let you know that Mamo in spanish translates to " I like to suck d..." may be you want to edit the title?
your site is great and Im sure you will be continuing creating more great tutorials.
thanks again for your great work. My name is Martin and live in Houston Tx USA
Sorry to all spanish speaking people. I guess you have to live with the title...
As you may combine the tracking liquify effect?
Sorry for my english... thanks
Mochaimport is FORMIDABLE!!!!
Moh@ider
What would you recommend for rotoscoping lips movement from a footage of a girl talking? I tried using technique from this tutorial, but the movement is too complex and the surface change perspective in a completely wrong manner each time the girl on the video says something. Thank you for any ideas!
for rotoscoping lips my guess is that you basically have to do it manually. However here are a few ideas that might never the less help:
you can track the two corners of the mouth and use the tracker2mask script to move at least the vertices of the masks at those corners (see "tracker2mask - advanced features" tutorial to learn how to move only parts of the mask)
Another option might be keying. If the color of the lips and the skin are sufficiently different, maybe you can just draw a rough mask and to the rest with a color or luminance key.
my track is of a bottle so long and thin.
when I create undistorted and stabilized precomp it it comes out the same size as the footage and stretches the images to fit (very distorted) is this normal?
thank you
There are two things you can do:
1) make the blue surface rectangle in Mocha such that it has roughtly the shape of your composition (i.e. contains more than your bottle such that it is not long and thin)
2) If you use the variant with RG Warp Corner Pin, you have an ajdustment layer with two sliders in the precomp. You can use those sliders to correct the distortion
My request: I need a tutorial on 'how to create skin blood effect witha hole full of blood like on this video tutorial, the actor's hand is cracked & the hole is full of blood. Please make a tutorial on how to create this kind of effect in After effects for free. Please please please. Please do it. We will never forget you.
If you definitely want to do everything in post, look at the tracked head wound tutorial.
for an example of a head, see also this tutorial:
Creating a tracked head wound
Good luck with your project!
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