Gray–Scott Reaction–Diffusion Lab

running

click or drag to feed V · space pause · r reset ·

Controls

Reaction regime solitons Brush radius 14 cells Max steps / frame auto smooth (bilinear) upscaling

Du (U diffusion)0.16

Dv (V diffusion)0.08

feed F0.035

kill k0.062

Δt · Δx1.0 · 1.0

∇²φ = .2·(orth) + .05·(diag) − φ dU = Du·∇²U − U·V² + F·(1−U) dV = Dv·∇²V + U·V² − (F+k)·V

backend…

grid—

sim steps0

steps / frame0

fps (frame ms)—

mean V0

max V0

cells V>0.250

center 32² mean V0

probe U / V—

staterunning

Field evolution is measured by full-texture read-back every 30 frames.