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AE CS6, Roto brush, Chroma Key

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Ian RosaaenAE CS6, Roto brush, Chroma Key
by on Feb 22, 2013 at 3:21:51 pm

I'm using AE CS6 and Windows 7 on an HP, 64 bit computer. I imported an H264, 1929 x 1080 video from PremierPro.

At 5:51 in this Color keying tutorial, (http://tv.adobe.com/watch/learn-after-effects-cs6/color-keying/), the instructor applies the Roto brush. Later, he scrubs the timeline and you can see the Roto brush outline throughout.

When I apply the Roto brush tool, the outline is fine for the first few frames (see left image), then the Roto brush outline becomes a flat line at the bottom of the clip (see right image). Any help would be greatly appreciated. Thank you.



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Ian RosaaenRe: AE CS6, Roto brush, Chroma Key
by on Feb 22, 2013 at 3:38:58 pm

Correction to the above post. The Roto brush outline appears around the perimeter, not just the bottom.


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Todd KoprivaRe: AE CS6, Roto brush, Chroma Key
by on Feb 22, 2013 at 5:23:28 pm

Read up on Roto Brush "spans":
http://help.adobe.com/en_US/aftereffects/cs/using/WS3bf812c123007fb8513559d...

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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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Ian RosaaenRe: AE CS6, Roto brush, Chroma Key
by on Feb 22, 2013 at 7:56:36 pm

Thank you!


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