Gray-Scott Reaction-Diffusion

Two-field chemical simulation (U, V) with wrapping boundaries — drawn live, not a prerecorded pattern.

steps/frame 12

frame 0 avg V 0.000 state running

Parameters: Du = 0.16 Dv = 0.08 feed = 0.035 kill = 0.062 dt = 1.0 · grid 256×256 with periodic (wrapped) edges.
Click / drag on the canvas to inject V and deplete U — new blooms spread into the surrounding field.