The Challenge: 3D Graphics on a Microcontroller
🤖 Disclaimer: AI has been involved in writing this article
When I first laid eyes on Pimoroni’s Cosmic Unicorn — a gorgeous 32×32 RGB LED matrix powered by a Raspberry Pi Pico W — I knew I had to push its limits. Sure, scrolling text and simple animations are fun, but what about real 3D graphics? What about ray tracing?
The problem was obvious: ray tracing is computationally expensive, and the Pico W, while capable, isn’t exactly a GPU powerhouse. But that’s where the fun begins.
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