Industry Groups Integrate Gaussian Splats Into glTF
On August 7, 2025, Khronos Group, OGC, Niantic Spatial, Cesium (Bentley) and Esri announced work to integrate 3D Gaussian Splats into the glTF format by developing two extensions to standardize storage and SPZ compression for photorealistic radiance-field point primitives. The initiative adopts Niantic’s open-source SPZ (claiming up to 90% compression versus PLY), updates SPZ v2.0.0 with improved quaternion rotation encoding, and aims to improve geospatial interoperability and streaming across platforms.
Key Points
- 1Develop glTF extensions KHR_gaussian_splatting and KHR_gaussian_splatting_compression_spz for Gaussian splat primitives.
- 2Adopt SPZ compression (MIT) to reduce payloads by up to 90% versus PLY.
- 3Enable interoperable, efficient high-fidelity geospatial rendering and streaming across platforms and tools.
Scoring Rationale
Official cross-industry standardization delivers broad practical impact; constrained by being a standards integration rather than novel research.
Sources
Public references used for this report.
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