- Interface
- Customizing your workspace
- Home screen
- Main toolbar
- Preferences
- Explorer
- Graph view
- Library
- Properties
- 2D view
- 3D view
- Dependency manager
- Resources
- Importing, linking and new resources
- Bitmap resource
- Vector graphics (SVG) resource
- 3D scene resource
- AxF (Appearance eXchange Format)
- Font resource
- Warnings from dependencies
- Substance graphs
- Substance graph key concepts
- Creating a Substance graph
- Instances and subgraphs
- Graph parameters
- Manage parameters
- 'Visible if' expressions
- Inheritance in Substance graphs
- Output size
- Values in Substance graphs
- Publishing Substance 3D asset files (SBSAR)
- Exporting bitmaps
- Exporting PSD files
- Sample Substance graphs
- Warnings in Substance graphs
- Substance function graphs
- What is a Substance function graph?
- Create and edit a Substance function
- The Substance function graph
- Variables
-
FX-maps
- FX-Maps
- How it works
- The Iterate node
- The Quadrant node
- Using Substance function graphs in FX-Maps
- Warnings in Substance function graphs
- Sample Substance function graphs
- Nodes reference for Substance function graphs
- Scripting
- Plugin basics
- Plugin search paths
- Plugins packages
- Plugin manager
- Python editor
- Accessing graphs and selections
- Nodes and properties
- Undo and redo
- Application callbacks
- Creating user interface elements
- Adding actions to the Explorer toolbar
- Using color management
- Using spot colors
- Logging
- Using threads
- Debugging plugins using Visual Studio Code
- Porting previous plugins
- Packaging plugins
- Scripting API reference
- Substance 3D home
- User guide
- Glossary
- Getting started
-
Interface
- Interface
- Customizing your workspace
- Home screen
- Main toolbar
- Preferences
- Explorer
- Graph view
- Library
- Properties
- 2D view
- 3D view
- Dependency manager
-
Resources
- Resources
- Importing, linking and new resources
- Bitmap resource
- Vector graphics (SVG) resource
- 3D scene resource
- AxF (Appearance eXchange Format)
- Font resource
- Warnings from dependencies
-
Substance function graphs
- Substance function graphs
- What is a Substance function graph?
- Create and edit a Substance function
- The Substance function graph
- Variables
-
FX-maps
- FX-Maps
- How it works
- The Iterate node
- The Quadrant node
- Using Substance function graphs in FX-Maps
- Warnings in Substance function graphs
- Sample Substance function graphs
- Nodes reference for Substance function graphs
- MDL graphs
- Bakers
- Best practices
- Pipeline and project configuration
- Color management
- Package metadata
-
Scripting
- Scripting
- Plugin basics
- Plugin search paths
- Plugins packages
- Plugin manager
- Python editor
- Accessing graphs and selections
- Nodes and properties
- Undo and redo
- Application callbacks
- Creating user interface elements
- Adding actions to the Explorer toolbar
- Using color management
- Using spot colors
- Logging
- Using threads
- Debugging plugins using Visual Studio Code
- Porting previous plugins
- Packaging plugins
- Scripting API reference
- Technical issues
- Release notes
In: Filters > Effects
Description
This node performs a reaction-diffusion effect on an input grayscale image.
Reaction-diffusion is a process in which matter spreads out (diffuses) and interacts (reacts) with other matter. It is a mathematical model that simulates what happens in nature when certain patterns are formed on animal skin for example.
This node is optimised for performance and does make some accuracy trade-offs for speed.
Input connectors
Input Grayscale
The grayscale image that the Reaction-diffusion effect should be applied to.
Output connectors
Output Grayscale
The grayscale image representing the Reaction-diffusion effect applied to the Input image.
Parameters
Radius Float
How far the effect should spread.
Contrast Float
Adjusts the contrast of the input, serves as a sort of treshold.
Examples

