An FFGL effect that shows your clip on an electromagnetic flip-dot sign: a grid of discs, black on one side and fluorescent on the other, each swung from one face to the other by a coil and staying put with no power. The driver scans the sign a column or a row at a time and only pulses the discs that need to change, so a new picture wipes across at the scan rate, with every disc in a line starting its swing the moment the driver gets to it, hitting the far stop and bouncing off. It's one bit a dot, thresholded or dithered at the pitch, with a seeded set of stuck discs and a few weak coils that swing late.
This demo runs the plugin's shaders in your browser, so it needs JavaScript and WebGL2. The plugin itself, its source and its downloads are on its repository.