Using a series of sequential images, this filter calculates the differences between x-amount of offset images %u2013 essentially isolating the moving pixels. In contrast to the previous render, only the moving pixels are composited onto the source frame(s). The color of the moving pixels is then automatically adjusted. It can be a very subtle effect, but with a few tweaks, I can see this being useful for adding natural motion blur to stop-motion animation. Music by Bebel Gilberto, 'Simplesmente'.