coupled-oscillator-array morphogenesis for 81hacks

These 1024 oscillators are somewhat coupled to the oscillators in their neighborhood, in a way that tends to gradually bring them into sync with nearby oscillators, especially those in the same row or column. If you watch for a few minutes, you will see random snow gradually organize into patterns, and then eventually waves will start to propagate. Each frame takes milliseconds to compute and draw.

I learned several things writing this.