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Circle Mask

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JoshCircle Mask
by on Dec 4, 2005 at 8:19:01 pm

I have a series of circles that i made in illustrator and I want them to be a mask for a video clip so the video clip only shows through the circles. How do I do this

thanks


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Barend OnneweerRe: Circle Mask
by on Dec 4, 2005 at 9:48:09 pm

If your circles are on a transparent background, place them on top of your footage. Select the footage layer, and set its Track Matte to 'alpha'. This will use the layer above as a transparency source.

Look up 'track matte' in the help files if it doesn't ring a bell. Very handy stuff.

If your circles are black on a white background, you can select luma, or inverse luma for the track matte.

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Dave LaRondeRe: Circle Mask
by on Dec 5, 2005 at 6:01:11 pm

...or you could simply make circular masks on your video layers and do the entire job within AE.


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