Gray-Scott Reaction-Diffusion
∂u/∂t = Dᵤ∇²u − uv² + F(1−u) | ∂v/∂t = D_v∇²v + uv² − (F+k)v
V concentration: low → high
Presets
Spots
Stripes
Holes
Maze
Coral
Bubbles
Feed rate F
0.037
Kill rate k
0.060
Dᵤ (activator diffusion)
0.20
D_v (inhibitor diffusion)
0.05
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Seed Random
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Gray-Scott model
exhibits Turing instability. Two chemical species U (substrate) and V (autocatalytic). Feed rate F supplies U; kill rate k removes V. Varying F and k traverses a rich morphological phase diagram: spots, stripes, mazes, and chaos.
Step:
0
| Click canvas to add V