Project Overview

Harmony is a real-time Gaussian splat rendering system for Unreal Engine designed to bring high-fidelity photogrammetry and neural capture techniques into production-ready interactive workflows.

Gaussian splatting has emerged as a powerful way to represent real-world environments with remarkable visual realism, but many existing implementations live outside traditional real-time engines or lack the flexibility required for complex interactive applications. Harmony bridges that gap by integrating splat rendering with the broader Unreal ecosystem, enabling creators to combine splat-based environments with native Unreal content such as vehicles, characters, lighting and simulations.

The project began as an internal research initiative focused on blending captured environments with high-quality real-time rendering for use cases such as virtual production, automotive visualisation and interactive installations. Harmony is designed to address depth compositing, lighting consistency, performance optimisation and cross-platform compatibility while preserving the visual fidelity of the original splat datasets.

Harmony is intended to make splat-based rendering a practical part of real-time production pipelines rather than a standalone research path, with a focus on scene integration, rendering fidelity and engine-level flexibility.

Demo

Mac and Windows demo apps can be downloaded from the public Harmony demo page. The current release provides a simple way to try the renderer outside the editor while broader demo material continues to develop.

Roadmap / Future Work

Harmony is under active development as a broader platform for hybrid scene composition inside real-time engines. Planned work currently includes:

- Deeper Unreal Engine integration
- Improved tooling for large splat datasets
- Additional dataset and interchange format support
- Ongoing rendering and memory performance optimisation
- Improved hybrid compositing and lighting workflows

These areas remain under active development and may shift as the renderer matures, but the direction is to make Gaussian splatting a practical production tool for film, games, architecture, simulation and interactive experiences.