The production designer who created the code for The Matrix's virtual reality finally reveals its secret.

This app simulates the raining code from the Matrix movies. Here I use HTML, pure CSS, JavaScript and Vue. The app includes some features like a music player and a menu to change the code color.

Is it a printing error? A pixilated maze? One of those puzzles where you have to cross your eyes to see the hidden image? Two-dimensional matrix bar codes are expanding into the mainstream. You ...

Two-dimensional matrix codes that contain information that can be quickly scanned by a computer are being put to new uses seemingly every day.