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open-standards/wai/volumetric-conformance
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Transaction Science 3fac029a71 wai: every corpus states the provenance of its content 
Each *-conformance/README.md now has a line that begins **Provenance.**:
the generator that writes the corpus and its input, and for an input not
generated here its source and licence. OER/2's corpus is settled and left
as it is. byte-exact-conformance and quantum-ops-conformance get a README.
wai-rs/tests/vectors/README.md gives a row per vector directory. Where the
staged-delivery, staged-measurement and telemetry READMEs called their
content "synthetic", that sentence is now their provenance line.

Two vectors are recorded as not generated, from the provenance audit:
int_video's video_real (a pan over a third-party picture) and
neural-conformance's photo (a third-party picture, with a decoder trained on
unrecorded images). Their lines say so and that they are to be replaced;
the photo bullet no longer names the picture's source product.

tests/corpus_provenance.rs requires the line in every corpus and a row for
every vector directory; CI runs it with the carriage tests. CONTRIBUTING
states the rule: corpus content is generated here, or recorded with a
licence that permits redistribution, and a word like "synthetic" is not a
provenance line.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-07 10:09:21 -04:00
..
vectors wai: interactive + temporal cargo classes, provenance, telepresence 2026-06-13 23:16:42 -04:00
expected_hashes.json wai: interactive + temporal cargo classes, provenance, telepresence 2026-06-13 23:16:42 -04:00
README.md wai: every corpus states the provenance of its content 2026-10-07 10:09:21 -04:00

README.md

Volumetric / 4D Splat Conformance Corpus

Vectors for the volumetric extension (wai.splat.4d). The criterion is frame-state-equivalence: given the same temporal-splat clip, a conforming sink MUST reconstruct the identical Gaussian set at every frame, hence the identical BLAKE3 — on every machine, no tolerance parameter. The temporal counterpart of the static splat, with the single cloud replaced by per-Gaussian keyframed tracks.

Provenance. Generated here: wai_splat4d_vectors gen writes every vector from clouds and tracks authored in code. No capture.

Each Gaussian carries a track of keyframes (frame, position, scale, rotation quaternion, color, opacity, all wai.det.fixed64); the sink interpolates linearly in the Fx floor at any frame. The frame hash is BLAKE3(domain || frame || n_gaussians | per-Gaussian 14×i64). The render of that set (EWA splatting, sort, blend) is the sink's presentation, never in the hash.

Clips are self-contained, so each vector is a .w4ds container + its per-frame expected hashes.

Layout

  • vectors/<name>.w4ds — the W4DS container (contract + Gaussian tracks).
  • expected_hashes.json — per clip: n_gaussians, n_frames, clip_hash, and frames[] = {frame, hash} for every frame.

Vectors:

  • orbit — two Gaussians swap x positions across 12 frames.
  • pulse — one Gaussian scales up and fades out across 10 frames.
  • morph — one Gaussian shifts color red → cyan across 8 frames.

Running

cd ../wai-rs
cargo run --features splat4d --bin wai_splat4d_vectors -- verify ../volumetric-conformance
cargo run --features splat4d --bin wai_splat4d_vectors -- gen    ../volumetric-conformance   # regenerate

Pass = clip-hash and every frame-hash equality.