In this opportunity, we explain how to export a MetaHuman to Unreal Engine.
A practical guide to the MetaHuman export pipeline: Quixel Bridge, the Groom and RigLogic plugins, and bringing a photorealistic digital human into Unreal Engine 4.
This post documents the process of exporting a MetaHuman character from Quixel Bridge into Unreal Engine 4 — a pipeline workflow rather than a game prototype. MetaHuman Creator was released by Epic in early 2021 as a web-based tool for creating photorealistic digital human characters, and this was an early exploration of how those characters move from the creation tool into a live Unreal project.
You can watch the export process in action here: YouTube
What MetaHuman Is
MetaHuman Creator is Epic’s cloud-based character creation tool that produces high-fidelity human characters — complete with facial rig, hair, body, clothing, and LODs — without requiring custom modeling or rigging work. Characters created in the tool are exported directly into Unreal via Quixel Bridge, arriving as fully rigged, animation-ready assets.
The characters use Epic’s proprietary facial animation system driven by RigLogic — a performance-capture-compatible facial rig that deforms the character’s face using a compact set of control curves rather than individual bone transforms. This is the same rig technology used in Epic’s own cinematic productions, and it’s designed to work with facial motion capture data as well as keyframed animation.
Hair and eyebrows use Unreal’s Groom system — strand-based hair rendered with physically accurate simulation and lighting. Groom hair produces significantly more realistic results than texture-card-based hair but is more computationally expensive, requiring the Groom plugin and hardware that supports strand-based rendering.
Export Pipeline
The export process connects three tools in sequence:
MetaHuman Creator (web-based) is where the character is designed — facial features, skin, hair color, clothing, body type. The tool provides a library of preset shapes that can be blended and adjusted, producing the final character definition that’s stored in Epic’s cloud.
Quixel Bridge is the desktop bridge application that connects Epic’s asset ecosystem to Unreal. After creating a MetaHuman in the web tool, it appears in Quixel Bridge where it can be downloaded and exported directly into an open Unreal project. The export settings in Bridge control which LODs are included, whether hair assets are exported, and the target project path.
Unreal Engine 4.26+ receives the exported character as a complete actor Blueprint with all mesh components, materials, and animation assets already configured. Two plugins must be enabled before the export: Groom for hair rendering and RigLogic for the facial animation system. Without these, the export will succeed but the character will be missing critical components.
Post-Export Setup
After the export, Unreal typically prompts to enable additional settings required by the MetaHuman’s rendering features — compute skin cache, ray tracing support for hair, and other rendering options that the MetaHuman’s high-quality materials depend on. These prompts should be accepted; ignoring them results in visual artifacts on the character’s skin and hair.
The exported MetaHuman Blueprint is immediately animatable — it can be placed in a level and driven by animation sequences or Live Link facial capture. The facial rig’s control curves are exposed as animation parameters that any animation system can drive: hand-keyframed animation, motion capture retargeting, or procedural control via Animation Blueprint.
Context in the Series
This post sits at the intersection of character technology and the VFX background that runs through this series. MetaHuman’s RigLogic facial system and Groom hair rendering are technologies that connect real-time game development to the photorealistic character standards of visual effects production — the gap between a game character and a VFX character is smaller with MetaHuman than with any previous real-time character technology.
For a developer coming from DreamWorks and Sony, MetaHuman represents the convergence of production-quality character technology with real-time rendering constraints — a convergence that was still emerging in 2021 and has continued to develop significantly since.
Reflection
The MetaHuman export post is the shortest and most procedural in the series — it documents a pipeline step rather than a system design. Its value is different from the other posts: not architectural insight or gameplay design analysis, but a practical reference for a specific technical process that was new and underdocumented at the time it was written.
The process itself has evolved since UE4 — in UE5, MetaHuman integration is more seamless, with direct Fab integration replacing the Quixel Bridge workflow and improved LOD management. But the core concepts — RigLogic, Groom, the plugin requirements — remain relevant, and understanding them at the UE4 level provides a clearer picture of what UE5 improved and why.
Nicolás Bertoa 
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