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Atlıhan Harita

Game Engine, Web, and XR

LCC UE PluginBillion-Scale Gaussian Worlds Enter Unreal Engine

The Unreal Engine plugin built for billion-scale real-world Gaussian Splatting. Import, edit, relight, and render massive 3DGS scenes in-engine, for film, digital twins, simulation, games, and VR.

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Scale 3DGS Scene
Billion
50-Million-Gaussian Scene, XGRIDS Test
≈60–90 FPS
LCC2 · LCC · PLY · SOG · SPZ
5 formats
Supported UE Versions
5.4–5.8

Use Cases

Bring Gaussian Splats into Your Unreal Workflow

Scenes captured from the real world, ready to use in Unreal Engine projects, from film sets to simulation, from digital twins to games.

  • Film

    Turn real-world Gaussian scenes into production-ready virtual sets. Relight, edit, and enrich environments with cinematic effects while reducing location shoots and production costs.

    • Previsualization
    • Virtual Production

  • Digital Twin

    Create interactive digital twins from captured spaces for visualization, design review, operations, and immersive collaboration.

    • Spatial Presentation
    • Design Review
    • Operations

  • Simulation

    Build editable, high-fidelity simulation environments for training, robotics, autonomous driving, and industrial applications with greater speed and lower cost.

    • Sim Environments
    • Robotics
    • Training & Education

  • Games & VR

    Combine Gaussian scenes with existing Unreal assets, convert captured environments into immersive game worlds and VR experiences, and deploy to leading XR devices.

    • Real-World Levels
    • Interactive Scenes
    • VR

LCC Plugin for UE Features

01Billion-Scale

Massive Real Scenes, Loaded in Full

According to XGRIDS, the only UE solution that can handle billion-scale Gaussian data today. LCC2's extreme compression loads billion-point 3D Gaussian scenes into Unreal Engine in one piece while preserving high fidelity. Covering hundreds of thousands of square meters of the real world, it brings large campuses, factories, and historic districts into the digital world.

*The real-world area covered depends on scene complexity and the level of scan detail.

LCC2, LCC, PLY, SOG, and SPZ formats go into Unreal Engine through the LCC Plugin

02Multi-format Gaussian Splat Support

Your Existing 3DGS Assets Go Straight into Unreal, No Conversion

Compatible with LCC2, LCC, PLY, SOG, and SPZ formats, so your existing 3DGS assets go straight into Unreal Engine with no format conversion. For high-point-count scenes, the native LCC2 format delivers higher real-time frame rates and smoother performance.

50-Million-Gaussian Scene Rendering, XGRIDS Test
≈60–90 FPS
Without Reflection Realistic Reflection

03Relighting

Closer to Reality Than Ever

3D Gaussians are relit using the geometry of a same-scale mesh, producing accurate cast shadows, self-shadowing, and reflections. The resulting 3D Gaussian scenes carry controllable, realistic lighting, ready for the LED wall in virtual production.

04Depth of Field

Create Epic, Movie-Quality Shots with DOF

Native depth information gives 3D Gaussians true focus falloff and foreground-to-background layering, not a flat, billboard look. Use depth of field to shape your camera language and build atmosphere for cinematic camera moves and storytelling.

05Asset Fusion

Build with Your Own Assets in Scanned Scenes

Real-world 3D Gaussians blend naturally with your existing mesh asset library. Layer, replace, and build freely inside scanned scenes. Each LCC scene ships with a same-scale mesh, collision-ready out of the box.

06Virtual Production

Slots into your existing pipeline

Real-world 3D assets go straight to the LED wall.

  • nDisplay and disguiseNatively supported, and can be quickly extended to Unreal-based platforms like Pixotope and Aximmetry.
  • Code-free Blueprint integrationDrive the plugin directly in Blueprints, so artists and designers can build and iterate fast.
  • Production-grade color pipelineOCIO / ACES compatible, fitting into your existing color-grading workflow for faster, more controllable, more professional delivery.

07VR

Stable High Frame Rates, Smooth VR Experience

Streaming LoD sustains high frame rates, keeping massive real-world 3D Gaussian scenes stable and smooth in VR headsets. Put on a headset and wander through a fully captured 3D space as if you were actually there. Compatible with PICO, Meta Quest, and other mainstream VR headsets.

08End-to-End Pipeline

One Pipeline, from Capture and Render to Deployment

From on-site capture and reconstruction to in-engine render and deployment, the entire pipeline is built in-house by XGRIDS on one unified data format. No switching between multiple tools, or rework from format conversion. Faster to deploy, more consistent results.

Sample Projects

Pick a Sample Project and Start Creating in Unreal Today

Pick a sample project and start creating in Unreal today.

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  1. Games

    Build interactive worlds from captured real-world environments. A complete reference project with plugin setup, runtime calls, and packaging paths preconfigured.

    • UE 5.x
    • C++ & Blueprint
    • Package pipeline

  2. Gallery

    Interactive walkthrough of a captured space. A polished reference for reviewing captured spaces, lighting, and spatial presentation inside Unreal.

    • Stakeholder review demo
    • Swap in your own environment

  3. Furniture Replacement

    Swap, place, and adjust 3D furniture inside a captured scene, making design validation and option comparison quick work.

    • Sales & design review template
    • 3DGS + mesh co-editing

Samples from the Field

Proven in Real-World Productions

The plugin has proven itself in real-world productions, from national live XR broadcasting to architectural design presentation.

  • SBS (Korea) XR Broadcasting

    Real-world Gaussian scenes power immersive XR news broadcasting, with high-performance streaming holding the smooth, stable frame rates a national live broadcast demands.

  • Active Retech Architectural Design Visualization

    Active Retech (Japan) turns architectural design proposals into 1:1 immersive 3D experiences inside Unreal Engine, helping clients understand and review them accurately for faster, more confident decisions.

    Credit to Active Retech (Japan)

Editions

Start Free. Scale to Production.

The Free version loads 3DGS scenes with no point-count limit. Pro adds physically based relighting and professional color management to all features of the Free version.

FeatureFreePro
Data Format Support
Support for LCC / LCC2 / PLY / SPZ / SOG FormatsSupportedSupported
3DGS Scene Loading with No Point-Count LimitSupportedSupported
Rendering & Performance
Performance Control SystemSupportedSupported
Depth Rendering SupportSupportedSupported
NVIDIA DLSS SupportSupportedSupported
Native Collision for XGRIDS ScansSupportedSupported
3DGS and Point Cloud Rendering ModesSupportedSupported
Perspective and Orthographic ProjectionSupportedSupported
Spherical Harmonics (SH) Band AdjustmentSupportedSupported
Point Cloud Data and Elevation ColoringSupportedSupported
Full Load RenderingSupportedSupported
Tiled Rasterization (Experimental)Not ApplicableSupported
XR & Virtual Production
High-Fidelity VR StreamingSupportedSupported
Native nDisplay SupportSupportedSupported
Multi-Camera / SceneCapture SupportSupportedSupported
360-Degree Panoramic OutputSupportedSupported
Digital Twins & Simulation
Cesium for Unreal SupportSupportedSupported
CARLA Simulator SupportSupportedSupported
FeatureFreePro
Scene Editing
Basic 3DGS RelightingSupportedSupported
Mixed Rendering of 3DGS, Meshes, and EffectsSupportedSupported
Clipping Volumes and Section Planes50 of Each TypeUnlimited
Navigation System SupportSupportedSupported
Loading AnimationSupportedSupported
Single Layer Water SupportSupportedSupported
Load VolumesNot ApplicableSupported
Physically Based RelightingNot ApplicableSupported
ProxyMesh Physically Based RelightingNot ApplicableSupported
Self-Shadowing for Gaussian SplatsNot ApplicableSupported
More Realistic Lighting and Shadow InteractionNot ApplicableSupported
Post-Processing & Color
Depth of Field (DoF)SupportedSupported
Model Exposure ControlSupportedSupported
Color Correction Region SupportSupportedSupported
Post Process Volume SupportSupportedSupported
OpenColorIO Color ManagementSupportedSupported
Working Color Space Conversion for Film, Broadcast, and Virtual ProductionNot ApplicableSupported
ACES Workflow SupportNot ApplicableSupported
Color Matching Between Captured Environments and CG ElementsNot ApplicableSupported

Platform: both versions run on Windows and Linux.

FAQ

Frequently Asked Questions

Can I import my existing 3D Gaussian assets directly with the plugin?

Yes. The LCC Plugin for UE supports the mainstream 3D Gaussian Splatting formats (.lcc2, .lcc, .ply, .sog, and .spz), so your existing Gaussian assets can be brought into Unreal Engine directly. For very large scenes, we recommend converting to the native LCC2 format for higher frame rates.

Which Unreal Engine versions are supported?

Version 1.0.0 and later support UE 5.4–UE 5.8; versions before 1.0.0 support UE 5.1–UE 5.7.

How is it different from other 3D Gaussian UE plugins?

The biggest differences are scale and realism. Most UE Gaussian plugins stop at the million-point range, while, according to XGRIDS, the LCC Plugin for UE is currently the only solution that loads billion-scale 3D Gaussian scenes into Unreal Engine in full. It also supports same-scale mesh-based relighting (cast shadows, self-shadowing, reflections) and native depth of field; most comparable solutions can't do self-shadowing or reflections at all.

Can it plug into my existing virtual production pipeline?

Yes. The plugin natively supports Unreal Engine nDisplay and disguise, and can be quickly extended to Unreal-based virtual production platforms like Pixotope and Aximmetry. It is Blueprint-callable and supports OCIO / ACES production-grade color management.

Built on LCC2's high-performance rendering, it sustains high frame rates even for very large 3D Gaussian scenes, meeting the real-time and smoothness demands of LED virtual production and XR broadcasting. In XGRIDS testing, a 50-million-Gaussian scene renders at around 60–90 FPS; frame rates vary with hardware and scene.

Which VR headsets are supported?

Mainstream VR / XR devices including Meta Quest and PICO are supported. The plugin streams Gaussian scenes to headsets in real time via PC streaming, and combined with streaming LoD (Level of Detail), even large-scale real-world scenes stay smooth with high frame rates and low latency.

What's the difference between relighting in the Free and Pro versions?

Free relighting computes lighting from simulated normals on the 3D Gaussians, letting you quickly adjust overall lighting — suitable for previews and design presentations. But without real geometry, the Gaussian scene can't produce accurate self-shadowing, so lighting relationships and reflections are relatively limited.

Pro relighting computes lighting from a mesh generated at the same scale as the Gaussian scene, using real normals in rendering to achieve more accurate shadows, reflections, and self-shadowing on the Gaussian scene — delivering more realistic, physically based lighting that meets the needs of film virtual production and cinematic-grade rendering.

Software & Plugins

Our Other Software

XGRIDS Türkiye

Bring the Real World into Your Unreal Engine Creations

Try the plugin with your own scene and Unreal project. Talk to our expert team for a demo, sample data, and a quote.

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