Fish School Simulation

Potential-flow dipole swimmers with Voronoi vision control

Controls

School size (force respawn): 150

Alignment by vision I_a: 1.50

Free-will noise I_n: 0.30

Regularized dipole-field hydrodynamic interactions

Hydrodynamics for nearest Voronoi only (unchecked renders well for N ⪅ 1200)

Hydrodynamics with cutoff distance R 5.0

Cutoff radius R

Put bait

Shark goal

Scary mouse

Baskin' shark

Blue whale

Auto evade

Enable death

Hard mode

Alignement torques are averaged over Delaunay neighbors with vision cone bias, dipole flow field shape hydrodynamic interactions, Gaussian turning noise injects 'agency' per fish, evasive behavior based on vision and orthogonal turning.

For more see our recent paper in PNAS.

Navigation tips

Pan the camera with arrow keys or the D-pad buttons (Shift = bigger step).
Use the center dot to focus on the school centroid.
Press Space or Pause/Play to halt the simulation.