A moving art tool that forms natural and organic designs that can be painted and manipulated. It's based on a simulation of the Gray Scott model of reaction-diffusion systems.

• Flow mapping - Applies flow to the solution based on solving the Navier-Stokes equations for incompressible fluid.
• Orientation mapping - Influence the direction of diffusion at each point using a vector field.
• Style mapping - Vary the simulation parameters across the canvas to mix growth patterns.
• Ink - Add dye to the solution.
• Import Images - Import image files to use as any of the maps.

CC0 1.0 Universal Public Domain Dedication