Class GaussianSplatExporter

Exports the GaussianSplatsPrimitive geometries of a SceneModel to the compact .splat format (baked RGB, no SH).

Like every other format exporter it reads a SceneModel through the ModelExporter base, so splats export as "just another model":

const fileData = await new GaussianSplatExporter().write({ sceneModel });
// fileData is an ArrayBuffer of .splat bytes
Copy

Round-trips with GaussianSplatLoader: a .splat loaded and then re-exported reproduces the original scene (positions to within the SceneGeometry's 16-bit position quantisation; scales, colours and rotations exactly).

All GaussianSplatsPrimitive geometries in the model are concatenated into one .splat buffer. Non-splat geometry (triangles, lines, points) is ignored.