A4: Reaction Diffusion Atlas

Assignment 4 · Reaction Diffusion

Reaction Diffusion Atlas

A fullscreen Gray–Scott simulation with live coefficient controls, click-seeding, and a flow field option that drifts the chemistry into tidal bands.

Open A4 Notes Course Index

Reaction Coefficients

Feed0.0367

Kill0.0649

Diffusion A1.000

Diffusion B0.500

Time Step1.000

Sims Option · Flow

Flow Strength0.850

Flow Scale1.600

Brush Radius0.024

GPU simulation running

interactive

Interaction: click or drag to inject chemical B into the field.

Visual mapping: deep water = stable A, bright rims = active reaction fronts, rose highlights = fast change.

Option used: a procedural flow field bends the diffusion so patterns shear into streams instead of growing symmetrically.