My first barrier-grid animation :-) It's still not perfect. Work in progress This one is based on 4 frames. I think a need some more :-)
Thanks to this tutorial: http://www.opticalillusion.net/optical-illusions/animated-moire-or-scanimation/ UPDATE: Nice resource for some more projects with the barrier grid http://home-science.com/animated-optical-illusions/ (thanks for the link @bubblejunk14). Can't wait to see them in Scratch projects. Be careful. If you scale scale them evenly!