Package-level declarations

Loader for glb-wrapped Gaussian splats — glTF 2.0 binary declaring KHR_gaussian_splatting + KHR_gaussian_splatting_compression_spz_2, with the SPZ stream as a bufferView in the BIN chunk. The de-facto production wire format (Cesium, gs_view, Niantic Lightship VPS). Also accepts raw .spz (NGSP) so a single registration on earth.worldwind.layer.ogc3d.Ogc3dTilesLayer.gaussianLoader handles both.

Per-attribute skip flags for SpzGaussianLoader. Each skip* flag short-circuits the corresponding decode loop (the cursor still advances over the bytes when later sections follow), and the payload field is left empty/null. Use ROUND_SPLAT when the renderer only needs centres + scales + rgba — the rotation, opacity, and SH decodes are by far the most expensive operations in the parser.

Concrete GaussianLoader for Niantic's SPZ wire format — the de-facto Gaussian-splat exchange format. Spec: https://github.com/nianticlabs/spz. Decoder matches the reference src/cc/load-spz.cc for versions 1, 2, and 3.

Platform-pluggable gzip / deflate inflater. SPZ payloads are gzip-compressed after the fixed 16-byte header — the engine has no built-in inflater that works across all KMP targets (JVM has GZIPInputStream, K/N doesn't, Kotlin/JS would need a separate Pako binding), so we expose this hook and let the app wire the most appropriate implementation per target.