Minimap System

Tutorial: https://youtu.be/ZKwBEYRGUfk

Document: https://docs.google.com/document/d/1RKzgTl1yfvhEZ42R5_7KPhLKmOXMW8_2WkZjdGj1rvM/edit?usp=sharing

A production-ready minimap plugin for Unreal Engine 5.7+. Drop in a capture actor, create a widget, and you have a working minimap with dynamic icons, fog of war, and fullscreen map support -- all configurable from Blueprint.

Core Features

Orthographic Capture System

• Scene capture actor with configurable orthographic width, height, and resolution

• Auto-calculate bounds from actor position or manually define them

• Layer filtering to control exactly which actors appear in the capture (show-only or hide specific layers)

• One-click editor buttons: Center Over Level, Auto Detect Landscape Bounds, Capture and Export

Dynamic Icon System

• Add a single component to any actor to display it on the minimap

• 10 built-in marker types: Player, Enemy, Ally, Quest Marker, Point of Interest, Collectible, Waypoint, Objective, Vendor, Custom

• Per-icon customization: color, texture, size, render priority, rotation, pulse animation, fade-in

• Distance-based visibility with minimum and maximum range

• Clickable icons with tooltip support and custom data fields for gameplay integration

Fog of War

• CPU-side exploration grid with GPU texture upload

• Configurable reveal radius, unexplored opacity, and explored dimming

• Per-icon fog settings: hide in unexplored areas, persist after exploration

• Save and load fog state for persistent exploration across sessions

• Fog enter/exit Blueprint events on each icon

Fullscreen Map

• Toggle between corner minimap and fullscreen map with independent size and view radius

• Configurable map coverage for fullscreen zoom control

• Blueprint events for open/close to handle custom transitions and UI

Texture Export

• Export the captured minimap to PNG, JPG, or EXR

• Async or synchronous export

• Configurable output path and filename

Custom Icon Widgets

• Subclass the included icon widget for fully custom icon visuals

• BindWidget support for icon image and optional background

• Blueprint events for icon type changes, texture updates, and component linking

• Icon pooling for performance

Technical Details

• Blueprint-First Design: Every property is exposed to Blueprint. Every function is callable from Blueprint. No C++ required.

• Performance Optimized: Icon pooling and recycling, configurable update rate, max icon cap, distance culling.

• 7 Blueprint Events on icon components for visibility changes, fog transitions, type changes, and per-frame tick.

• 13 Runtime Functions on icon components for querying state and changing appearance at runtime.

• Material Parameter Collection driven -- the widget automatically writes player position, zoom, view radius, map size, rotation, and fog parameters to your MPC every tick.

• UE5.7 Compatible: Fully tested and packaged for UE5.7 with all required Category specifiers.

What's Included

• MinimapCaptureActor (bounds calculation, scene capture, layer filtering, texture export)

• MinimapDisplayWidget (main minimap UI with icon rendering and fog of war)

• MinimapIconComponent (attach to any actor for minimap representation)

• MinimapIconWidget (subclassable widget for custom icon visuals)

• MinimapFogOfWarManager (exploration tracking with save/load support)