I wish to blurr out a wedding corsage of flowers from the background. I can do it by placing the clip on 2 tracks one above the other,
cropping the top clip and blurring the bottom clip, but that ends up with a square in focus.
I would like to have a circular effect, or and elipse, not a square or rectangle.
Here is the video
I use the Circle effect in Stencil Alpha mode for this, but a Track Matte key would accomplish much the same thing with more control of the shape you use. Check out more on Track Matte here: Track Matte Key effect