One of the great features of Avid Media Composer is the ability to create animated masks.
Click on this link for a YouTube Tutorial on how to create a quick mask by duplicating a clip segment within Media Composer.
Or, read the text/image based tutorial below.
Start by duplicating a clip segment layer by holding down the option/alt key and pressing the UP ARROW key. That will duplicate the clip segment on V1 onto V2.
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Then, command click on the V2 Monitor Icon to Solo the Layer.
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Drag the Animate Effect from the Effect Palette onto the V2 Clip Segment
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Then enter into Effects Mode.
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Next, click on the Reduce Icon to zoom out of the visible area within the Record Side of the Composer Window.
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Click on the Rectangle Tool within the Effect Editor Window.
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Draw a Rectangle Mask around the water area and adjust the vertical feathering to hid the hard edge of the masked area.
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Double click on the Animate Effect located on the Clip Segment within the timeline. The Timeline will expand with 2 additional tracks. This is called expanded nesting.
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Within the Effect Palette, navigate to the Image Category and look for the Color Effect.
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Drag the Color Effect onto the V1.2 track which is nested within the V1 track.
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Then, adjust the blue parameter within the Color Gain category.
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You can now umute the V2 track and place the monitor icon icon the V1 track.
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That’s it!, now you have an isolated matte (mask) where you can adjust the color of the shape independently from the rest of the video segment.
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If you enjoyed this tutorial, please subscribe to our YouTube Channel, or consider taking an Avid Certified Media Composer Course.