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node editor - In making a mask, how do I remove the outer area and lay the inner area atop video? - Blender Stack Exchange
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video sequence editor - Can a mask hide only one object and not the others? - Blender Stack Exchange
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Masking in Video Editing - #2 by bartv - Compositing and Post Processing - Blender Artists Community
![node editor - In making a mask, how do I remove the outer area and lay the inner area atop video? - Blender Stack Exchange node editor - In making a mask, how do I remove the outer area and lay the inner area atop video? - Blender Stack Exchange](https://i.imgur.com/H368h5N.png)
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