Union and Clear Angle debut relightable Gaussian Splat crowd pipeline
Union and Clear Angle Studios have developed a new crowds pipeline utilizing relightable Gaussian Splats. This workflow, captured using Clear Angle's 40-camera Volumetric Capture Rig, significantly improves realism and editability for digital crowds in film and TV production. The technology reduces the need for manual cleanup, texturing, lighting, and animation, allowing for more convincing and visually varied digital crowds.
Key Takeaways
- Volumetric Capture Rig (VCR) utilizes 40 cameras at 60fps within a 3m x 3m area to capture live performances.
- Dynamic Splats proprietary workflow enables digital humans to be lit using standard CG setups without specialized render support.
- Image segmentation technology allows artists to isolate costume colors and materials, enabling a few captures to scale into crowds of thousands.
- Pipeline outputs fully usable USD assets that preserve nuanced movement in hair and fabric, areas where traditional CG often struggles.
- System supports physical motion aids including treadmills, bike rollers, and gimbals to enhance movement realism in virtual environments.
Why It Matters
This development marks a transition for Gaussian Splatting from a research curiosity to a controllable B2B production tool. By solving the relighting challenge—previously a bottleneck for neural rendering—Union is offering a bridge between high-fidelity volumetric capture and standard VFX pipelines. For the ecosystem, this technology significantly reduces the ‘uncanny valley’ in digital crowd scenes while lowering the labor costs associated with manual geometry cleanup and rigging. Studios should watch for the adoption of this pipeline in upcoming blockbuster titles as a benchmark for whether volumetric assets can fully replace traditional 3D mesh-based crowd agents in high-end streaming and theatrical content.
Additional Context
The commercialization of Gaussian Splatting (3DGS) has accelerated throughout 2025 and 2026 as studios seek alternatives to labor-intensive mesh-based modeling. According to Forbes in February 2026, the number of research papers on the subject jumped from 79 in 2023 to nearly 1,700 by 2025, signaling a rapid shift toward production-ready breakthroughs. These tools are increasingly valued for their high-performance rendering speeds, which often reach 100+ frames per second in engines like Unreal, making them ideal for the low-latency requirements of in-camera visual effects (ICVFX) on LED volume stages, as noted by The Future 3D in April 2026. Industry-wide standardization is further legitimizing the technology. Per reports from Volinga in early 2026, the Alliance for OpenUSD (AOUSD)—which includes Pixar, Apple, and NVIDIA—has been developing a Particle Fields schema to natively support Gaussian Splatting data. This allows these volumetric 'blobs' to coexist with traditional 3D assets in a single scene graph. Additionally, major software providers like The Foundry announced native support for 3DGS in Nuke 17.0 late in 2025, moving the technology into the primary toolsets used by compositors daily. Clear Angle Studios’ specific hardware launch, the Volumetric Capture Rig (VCR), represents a specialized evolution of its established capture systems used by Netflix and Disney, according to Blab Tech in June 2026. While the virtual production market is projected to reach $18.5 billion by 2035, the immediate priority for many VFX houses is the 'JPEG moment' for 3D—creating interoperable, lightweight formats that preserve the 'human imperfection' of live performance. The Union-Clear Angle partnership is the first to publicly deploy a truly relightable version of this 4D volumetric data in a major film production environment.
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