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Analyzing Motion

Analyzing Motion
A CreativeCOW After Effects Video Tutorial


CreativeCOW presents Analyzing Motion--Video Training by Carl Larsen

Carl Larsen Carl Larsen
St. Cloud, Minnesota

©2008 Carl Larsen and Creativecow.net. All rights reserved.

Article Focus:
In this tutorial, Creative Cow Contributing Editor Carl Larsen will show you how to use offset tracking to analyze the motion of an object over time.













Comments

@Analyzing Motion
by Chris Vile
Hi,
Nice, just wanted to thank you for this one! Cheers
Chris
Analyzing Motion
by Carl Larsen
Really basic possible ansower: Do you have the freeze frame layer soloed? If you do, the black could be your alpha channel. Make sure the toggle transparency switch at the bottom of the comp window is activated to show the grid if you want to see the transparency.
Analyzing Motion
by John OBrien
Stupid Question, but when I go to mask out the object, my mask turns everything black besides what is in it. How do I set my pen tool to mask out the freeze frame while making everything around it transparent?
Analyzing Motion
by Carl Larsen
In theory, the difference key should work, but your millage will vary in actual use. The mask, however, is guaranteed to work. Thanks for the suggestion!
Analyzing Motion
by Frank Maier
@ Alex Bruce:

Oh, thats a great idea! But to use the difference key, didn
Analyzing Motion
by Alex Bruce
I'd like to suggest that you use a difference key instead of a mask to remove the background, then you won't even NEED to fade the opacity!
Analyzing Motion
by Alejandro Ortiz
Thanx for one of the best toots I've seen lately. It blows my mind just thinking about the infinite combinations and applications we could use this technique with. Thanx once again.
Analyzing Motion
by Lyndon Alvarez
dude you have got some dope tutorials. please keep droppin em whenever you feel like it because i have no opposition to that movement. 5 cows
Analyzing Motion
by Frank Maier
Although its a little work, thats a nice technique. Well explained and good use of the AE Tracker,(which was a long time not a good friend of mine:)

One thing came to into my mind: If this shoot would have been from a stillstanding tripod, would it be possible to detect the motionpath of the moving object with one of the TimeFX inside AE?

I did already some tests but couldnt figure out how to freeze the frames inside one layer, so in the end I would have a lot of duplicates again...


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