The Blender add-on for making your own custom nodes

for Geometry, Shader, and Compositing nodes

Give your node groups superpowers

Transform your node groups into real nodes, with custom UI controls for inner node properties — all without writing any code.

Seamless Blender integration

Your custom nodes behave just like native nodes. They all appear in the standard node menu, under any category you choose (including any number of your own categories).

Access your nodes from any file

UDON includes convenient library management, allowing you to make your custom nodes available across your Blender sessions, regardless of which .blend file you are working on.

Documentation and More Info

You can find the details about all UDON features and capabilities, as well as installation instructions on the documentation portal.

For the most common questions, see the FAQ page.

Features

This is a non-exhaustive list of features, to highlight UDON's main capabilities.

Core

• Convert node groups to custom nodes with a single click
• Support for Geometry, Shader, and Compositing nodes
• Easily expose inner node properties to the custom node UI:
  • Control multiple inner node properties with a single property in the custom node UI
  • Set a custom default value
  • Supported property types:
    • Number sliders (int, float)
    • Checkboxes (bool)
    • Vectors (bool_vec, int_vec, float_vec)
    • Text fields (str)
    • Drop-downs/radio-buttons (enum)
    • Datablock pointer (ID data, e.g. object, mesh, etc.)
    • Image selectors
• Use custom nodes inside other custom nodes
• Convert custom nodes back into plain node groups
• Edit existing custom nodes

Node UI

• Create custom node UIs using a graphical interface
• Sort properties in a custom order
• Set a custom name and description (tooltip) for each property
• Customise the node UI with separators and labels
• Customise how properties are displayed:
  • Show or hide property labels
  • Display numeric fields as bounded or unbounded sliders
  • Set property subtype and unit to properly display and convert lengths, angles, etc.
  • And more...
• Set a custom node class (controls the node header colour)
• Set a custom default node width

Menu Integration

• Custom nodes appear in the standard Add Node menu
• Custom nodes can be added both under existing as well as custom categories
• Custom nodes appear in the node search

Library

• Custom nodes can be saved to the global library, making them available across sessions
• Library nodes appear in the standard Add Node menu, just like local nodes
• Version management:
  • Easily update custom nodes in the library when making changes to them locally
  • Instances of a custom node within a file are not affected by modifications in the library, avoiding potential incompatibilities/breakages in existing files
  • Icons let you know at a glance when a node has been modified locally or in the library
  • Pull a new version of a node from the library, updating all local instances of the node