26 particles move linearly at various speeds, bouncing off the edges. For each frame, for each pixel, find d_0 < d_1 < ... < d_25, the distance from the pixel to each particle. Then, if
2 d_1 > d_0 + d_2
color the pixel white; else, color it black.
Loading more stuff…
Hmm…it looks like things are taking a while to load. Try again?