Apple Motion: "Disintegration" Creating the Matte

A follow-up to the recent disintegration tutorial (   • Apple Motion: Disintegration Tutorial  ) explaining how I created the black and white matte for the effect, with a lot of useful additional information about best practice for keying. Assets: http://tokyo-uk.com/Motion/DannyKey.zip And for the best possible keys: https://hawaiki.co/keyer