Re: Motion blur in video

If the shot is locked down and there isn't too much movement in the frame other than your swinging subject, Time-Echo might give you an interesting effect.

You might also try compositing a copy of the layer over top of a still of the scene without the person swinging in it and use Difference Matte to basically 'key out' the swinging person. Then duplicate that layer (which now contains just the swinging person & no background) and add time echo to the bottom version.

I just did that playing around with some footage of a guy walking, and after adding a matte choker to smooth the edges a little bit it ended up looking pretty decent. Just an idea.