OVERVIEW & GUIDE VIDEO

A Multiplayer PCG building system for Unreal Engine 5. Players can expand, remove, and customize rooms in a replicated voxel grid with per-surface material and mesh overrides.

Designed for fast iteration, clean graphs, and artist-friendly workflows.

How To With Demo Assets

1. Add BP_VoxelPCG to your world

2. Add BP_VoxelPCG_Add to your world to create the starting point

3. Configure the parameters (cell size, meshes, materials)

4. Play

How To From Scratch

1. Add a PCG Surface Override component to your PCG actor

2. Use PCG graph nodes (Get Expansion Points, Get Removal Points, Apply Surface Override) to drive generation

3. At runtime, call AddExpansion, AddRemoval, or SetSurfaceMaterial to modify the world

4. Use Classify Voxel Hit to convert player clicks into grid keys and surface types

5. Bind OnExpansionChanged / OnRemovalChanged / OnSurfaceOverrideChanged delegates for FX and PCG regeneration

USE CASES

• Player-built dungeons and bases with replicated state

• Runtime room customization (swap wall materials, floor tiles, ceiling styles)

• Procedural level editing tools with save/load support

PRIMERS

Part of the Primer series, this plugin prioritizes clarity, control, and practical workflows.