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Learning about masks, need assistance with an idea

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Grant Hoki
Learning about masks, need assistance with an idea
on Feb 7, 2011 at 4:07:45 am

I have some footage of a whale swimming in the ocean. I would like to put some moving type behind the whale. How can I do this? I experimented with tracking a mask, but the dynamic movement of the whale it did not come out as planned.

Are there any tutorials or guides that will be beneficial for me to review? Is using a mask even the correct way to go?


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Cory Petkovsek
Re: Learning about masks, need assistance with an idea
on Feb 7, 2011 at 10:42:55 am

If you want the text to move with the whale you need to track the whale, create a null object, and apply the tracking data to the null. Parent the text to the null so it moves with the whale.

If you want the text to be behind the whale, you need some method to separate the whale from it's background. Since the whale and water are probably both blue, it will be rather challenging. You'll probably need to rotoscope it: create a mask and every frame reshape the mask to the outline of the whale. You can use the rotobrush to do some of this automatically for you, but results may vary.

You can learn more about tracking here:
http://www.videocopilot.net/basic/tutorials/05.Motiontracking/

Here's an advanced tutorial that uses roto and tracking:
http://www.videocopilot.net/tutorial/assisted_suicide/

Cory

--
Corporate Video


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Jason Mettler
Re: Learning about masks, need assistance with an idea
on Feb 7, 2011 at 5:46:51 pm

You can easily try text animators and presets. They can seem intimidating at first but using AE's built-in stuff can be a really good place to start.

Get a jumpstart at this link (there are 2 video's total):

http://www.motionworks.com.au/2010/02/magic-from-presets-1/

Good luck!


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