IOBrush is a paintbrush that allows you to paint with video. It captures video in one mode, and paints the video back on the screen in another. It’s similar to Danny Rozin’s Easel. Unlike the easel, however, it’s possible to use the IObrush to paint with still captures or recorded video, so that its “paint” can have behaviors. There’s a good video of it in use on the site as well.
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