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Applying an effect to a roto brushed area

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Martin Robbins
Applying an effect to a roto brushed area
on May 17, 2012 at 11:52:26 am

I have used the roto brush to select a section of my video which is 10 seconds long. I just want to reduce the brightness on this particular area, and leave the rest of the video as it is. The process I have currently gone through is:

Roto brush
Remove Roto brush on bottom layer
Select top layer
Then add filter.

However when I'm doing this, in the layer window, I can only see the roto-brushed area, which appears to be changing. but it's applying the filter to all. In the footage window I can see the whole shot, but no changes are being applied.

Any suggestions as to what I'm doing wrong?

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