There could be some randomness to the points, but I definitely wouldn't call it a "random walk," which would have very jittery paths. These points are moving along some smooth curves.
I think it's probably computing a Delaunay triangulation and continuously updating it as the points move, but I didn't attempt to verify that.
The colors seem to be based on a simple color gradient going from top to bottom, but it's a bit more complex than that. The color inside each triangle is not constant. Interestingly the blue channel appears to be maxed out over the whole thing (not counting the vertices), which should simplify the analysis if you want to reverse engineer it, but I'll stop there.
I think it's probably computing a Delaunay triangulation and continuously updating it as the points move, but I didn't attempt to verify that.
The colors seem to be based on a simple color gradient going from top to bottom, but it's a bit more complex than that. The color inside each triangle is not constant. Interestingly the blue channel appears to be maxed out over the whole thing (not counting the vertices), which should simplify the analysis if you want to reverse engineer it, but I'll stop there.