Realtime Mesh Component (Core) for Unreal Engine 5

This is the free, MIT-licensed Core edition of the Realtime Mesh Component. Looking for spatial streaming, runtime Nanite, mesh→SDF/Lumen cards, compute providers, replication, and more? Check out the Pro edition, available on Fab.

Documentation · Discord · Issues

The Realtime Mesh Component (RMC) renders runtime-generated and runtime-modified geometry in Unreal Engine 5. It is a high-performance replacement for the ProceduralMeshComponent (PMC) and DynamicMeshComponent, built around an efficient stream-based mesh data layer and a copy-on-write render proxy. It scales from simply loading a model at runtime, through live mesh editing and debug views, up to procedural generation of entire worlds.

RMC has been in active development for 8+ years with a community ranging from individual developers to schools and Fortune 500 studios.

What's included in Core

• RealtimeMeshComponent — the core runtime: stream-based mesh data, LODs, sections and section groups, materials, copy-on-write render proxy, collision, and full Blueprint + C++ APIs
• RealtimeMeshExamples — canonical usage examples (HelloTriangle, basic shapes, collision, async build, LODs, fast updates, and more)
• RealtimeMeshEditor — editor integration and details-panel tooling

Pro edition adds

Mesh providers and the Constructed mesh system, dynamic mesh (UDynamicMesh) integration, static-mesh/OBJ conversion, GPU + CPU mesh→SDF generation with Lumen card support, compute-shader mesh generation, spatial streaming, a runtime Nanite builder, and meshoptimizer-based mesh optimization — plus the examples and tests for all of it.

Installation

1. Clone or copy this repository into your project's Plugins/ folder (e.g. MyProject/Plugins/RealtimeMeshComponent/), or install from Fab.
2. Regenerate project files and build (C++ project required for source builds).
3. Enable the Realtime Mesh Component plugin in the editor if it isn't enabled automatically.

Supported engine versions: UE 5.5 – 5.8

Getting started

The examples module is the best starting point — see Source/RealtimeMeshExamples/, starting with RealtimeMeshExample_Simple_HelloTriangle. Full guides, key concepts, and API documentation live at triaxis.games/realtime-mesh.

Community & support

• Discord — active community support
• Issue tracker
• Contributions welcome — see CONTRIBUTING.md

License

The Core edition is licensed under the MIT License. Copyright © TriAxis Games, L.L.C.