Product overview
NUI Framework
NUI is an Unreal-native, source-authored UI framework for Unreal Engine. It is built around NUIWBP assets and NUI Script V2, with authoring, compilation, preview, diagnostics, and behavior wiring kept inside the Unreal editor.
This overview describes the technical direction and authoring model for NUI as documentation expands toward public release.
What NUI is
NUI is designed for readable UI structure in source while preserving the Unreal-native workflow. Users create a NUIWBP asset, write NUI Script inside the editor, compile the asset, preview the result in Unreal, and connect behavior through the same asset's Event Graph.
The framework focuses on faster iteration, a foundation for clearer diagnostics and source mapping, and source control review. The intent is to make Unreal UI authoring more structured and automation-friendly without moving the workflow outside the engine.
Authoring loop
The core loop is direct: write UI structure in NUI Script, compile the asset, preview the updated UI inside Unreal, then connect behavior through the Event Graph.
This fast compile-and-preview workflow is the foundation for editor-native UI authoring. It keeps structure, feedback, and behavior close to the asset being edited.
- Create or open a NUIWBP asset.
- Edit source-authored UI structure with NUI Script V2.
- Compile the asset inside Unreal Engine.
- Preview the result in the editor.
- Review current diagnostics while source mapping continues to develop.
- Connect behavior through the Event Graph.
Technical foundation
NUI is NUIWBP asset based, NUI Script V2 driven, compiled inside Unreal Engine, and previewed through Unreal-native editor surfaces.
Where currently supported, rendering direction follows Unreal-native rendering and RHI-focused systems. Documentation will separate shipped behavior, editor workflow, and development direction as the product matures.
Review and assistance
Readable source structure is intended to make UI changes easier to review in source control. A diagnostics foundation exists, while clearer feedback and source mapping remain in development.
The structured source model also creates a foundation for future editor assistance, MCP workflows, and AI-assisted editing without changing the product into a detached external workflow.