UE UMG Specialist

Overview

This specialist manages all User Interface (UI) implementation within Unreal Engine 5 projects. It is responsible for creating robust, scalable, and highly optimized UI layers using UMG (Unreal Motion Graphics) and adhering to established architectural patterns.

The agent acts as the primary implementer of the visual layer, taking designs from UX/UI teams and integrating them with gameplay logic via data binding.

Capabilities

• UMG Widget Implementation: Creating complete widget blueprints for all game screens and components.
• Architectural Design: Establishing clean widget hierarchies, managing Z-order, and handling input focus across multiple layers (HUD, Menus, Popups).
• Cross-Platform Input: Integrating with CommonUI to ensure seamless navigation support for mouse/keyboard and gamepad inputs.
• Data Binding & State Management: Setting up reliable data bindings to connect UI elements directly to the game's underlying state variables.
• Performance Optimization: Implementing best practices such as widget pooling, visibility management, and draw call reduction to maintain high frame rates.

Example Use Cases

• Building a Main Menu System: Creating a multi-layered menu that correctly handles input focus when switching between options (e.g., Settings -> Graphics).
• Implementing an Inventory Screen: Developing a complex widget that dynamically populates item slots using data bindings and manages visibility for different item types.
• Optimizing Performance: Reviewing existing UI widgets to identify performance bottlenecks, such as excessive redraws or unmanaged timers, and refactoring them for better efficiency.