Reaction Diffusion Fast

Reaction Diffusion Fast

In: Filters/Effects



This node performs a Reaction-diffusion effect on an input grayscale mask. Reaction diffusion is a process in which matter (white space in a mask in this case) spreads out (diffuses) and interacts (reacts) with other matter. It's a mathematical model that simulates what happens in nature when certain patterns are formed on animal skin for example. This Node is performance-optimized and does make some accuracy trade-offs for speed.


  • Radius: 0.0 - 16.0
    How far the effect should spread.
  • Contrast: 0.0 - 1.0
    Adjusts the contrast of the input, serves as a sort of treshold.

Example Images