maxwildersmith/splataverse-caloundra

Splataverse Caloundra

Complete provider source scene, independently verified. Caloundra, Sunshine Coast, Queensland, Australia: 52,579 finest textured source leaves, 15,192,349,709 balanced Gaussians, 3,328 verified archives (approximately 497.33 GB).

The provider scene envelope is approximately 19.0 km² (3.82 × 4.97 km), measured from the original EPSG:7856 XY bounding rectangle. This is an approximate scene envelope; it does not measure occupied mesh area or complete municipal/street-height coverage. The source is real captured regional aerial photogrammetry.

City metadata and area provenance · Complete copy verification · Original source coverage proof · All cities

Data and provenance

Data remain under v3-balanced-5170e7871880/Caloundra/shards/. Each TAR has an exact JSON manifest with source IDs, geometric transforms and SHA-256 identities. Correspondence sidecars and original coordinate metadata are retained; source geometry and textures are linked, not included (see below). Sampling uses the existing validated CPU balanced factor-2 recipe; copying changed no scientific payload. The few SPZ-unrepresentable Gaussians retain the documented lossless Gaussian NPZ encoding.

Every archive was copied using Hugging Face's server-side cross-repository LFS/Xet duplication. Its remote SHA-256 and byte size were checked against the original independently audited release; all source JSON files retain identical Git content identities. The original publication remains intact. No city TAR was downloaded or converted for this migration.

Provider source metadata and node pages are linked, not redistributed: sources/Caloundra holds URL + SHA-256 stubs (*.source.json). Source: 3D Regional Model Caloundra. Original attribution: SCC 2019. Source license: Creative Commons Attribution 3.0 Australia.

Validation scope

All 52,579 frozen source leaves are present without omissions or duplicate IDs. Each original Gaussian's source correspondence was independently checked before publication. Appearance validation remains the separately scoped source-mesh pilot recorded under validation/; this is not a whole-scene LPIPS certification or a claim of uniformly terrestrial capture.

Source-free archives (2026-11-05)

The shard TARs were repacked to remove every source payload: provider geometry buffers, texture images, i3s node/layer documents, decoded source attribute arrays and the few provider DDS/Draco alternatives. Each node TAR now holds only the derived Gaussians (SPZ chunks and the rare lossless Gaussian NPZ), the correspondence sidecars (face IDs, barycentric coordinates, UVs, source-frame scales/rotations) and the conversion manifest. Gaussian counts and every derived member are byte-identical to the previous release. Each shard JSON lists the removed source members by name, size and SHA-256 next to the derived members, and records the previous archive hash under source_strip. Source data are linked, not redistributed: use the provider service and the per-node geometry_url/texture_url in each node manifest, and check them against source_sha256.