Quite Brilliant uses path tracing to bypass game engines for Warburtons
Virtual production firm Quite Brilliant integrated the Chaos Arena path-tracing engine with Unreal Engine to achieve in-camera VFX for a Warburtons commercial. The workflow allowed the production team to review near-final frames on set, reducing the need for post-production adjustments for complex lighting and reflections.
Key Takeaways
- Quite Brilliant deployed Chaos Arena for the 'Mission Crumbtrol' sequence to handle complex reflections on practical desk surfaces and digital characters.
- The production utilized a hybrid stack including Unreal Engine for environmental rendering and Assimilate Live FX for image-based lighting.
- Path tracing allowed the director and DOP to review near-final frames on set, enabling immediate decisions on lens choice and depth of field.
- The commercial was filmed over five days at Twickenham Studios, covering 15 distinct historical and modern environments.
Why It Matters
This implementation signals a shift away from game engine exclusivity in virtual production, as path tracing becomes viable for real-time LED volume work. By bypassing rasterization-heavy pipelines like Unreal Engine for specific high-fidelity shots, production teams can eliminate the time-consuming process of asset conversion and lighting 'baking.' This hybrid approach allows for more physically accurate lighting and reflections in-camera, which is critical for commercials requiring high-end product finishes. As these tools mature, expect the industry to move toward 'engine-agnostic' volumes where the render pipeline is selected based on visual complexity rather than software familiarity. Watch for Chaos Arena's adoption rates among mid-tier studios looking to reduce set construction costs and post-production cycles.
Additional Context
The shift toward path-traced virtual production is gaining momentum as software developers aim to simplify workflows. Per Jon Peddie Research (March 2025), Chaos Arena officially launched out of beta to provide a real-time ray-tracing alternative to traditional game engines, allowing artists to move 3D scenes directly from tools like Maya and Houdini to LED walls without conversion. This capability addresses a major industry pain point: the high cost of rebuilding assets specifically for real-time rasterization. Chaos claims this pipeline can handle trillions of polygons without the crashes frequently associated with complex game engine environments.
More recently, the release of V-Ray 7 Update 4 in July 2026 introduced deeper integration between standard digital content creation (DCC) tools and virtual production stages. According to Digital Media World (July 2026), the update allows crews to edit materials, depth of field, and color correction in real-time while a shoot is in progress. This level of interactivity is supported by new precision lens encoders that synchronize virtual and physical cameras more accurately. Furthermore, the integration of AI-driven features like Gaussian Splat relighting, as reported by CGW (July 2026), enables teams to blend scanned real-world environments with digital scenes more fluidly than previous manual cleanup methods allowed.
Market analysis from Mordor Intelligence (January 2026) estimates the virtual production market will reach $3.67 billion in 2026, driven by a 31% CAGR in LED volume adoption. While feature films remain the primary revenue driver, the advertising sector is increasingly utilizing these stages to mirror consistent lighting across historical narratives while avoiding the logistical expenses of physical location shoots. As hardware costs decline, the focus of the sector is shifting toward software-defined production where high-fidelity path tracing acts as a key differentiator for premium commercial work.
Read full article at broadcastnow.co.uk
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