A different particle technique from Dust Drift's: no fluid velocity field, just literal per-particle position+velocity physics — gravity and drag. Reaching the bottom doesn't rest a flake there forever; it respawns at the top with a fresh random position, so snow keeps falling continuously instead of settling into a static pile. The cursor doesn't push a shared current, it injects a direct outward-and-up kick scaled by how fast it moves, so waving through the flecks reads as shaking the globe.