This Geometry Nodes setup provides a Reaction Diffusion simulation based on the Gray-Scott model. It simulates the interaction of two virtual chemicals across a mesh using Blender's simulation zone. Users can control parameters such as chemical A and B values, kill rate, feed rate, diffusion rates, and pattern scale.

The paid version includes additional features, such as Marching Squares and Triangles algorithm nodes, which can be used to create isolines and cut surfaces directly from the generated reaction diffusion patterns.