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open-standards/wai/haptic-conformance/README.md
Transaction Science df20c392d8 wai: interactive + temporal cargo classes, provenance, telepresence 
Adds the "carries whatever it can reconstruct, verifies whatever it
carries" surface on top of the existing neural/codec WAI. All builds
green against this base (wai-rs all-features tests + clippy, wai-web
wasm, wai-spz-gen, wai-relay).

Reconstruct half — each a spec + conformance corpus + in-tab browser
sink that re-derives the corpus hash, over one wai.det.fixed64 floor:
  - interactive worlds      replay-equivalence   (3 sim registrants,
    relay multiplayer, session receipts, glTF + real-SPZ assets)
  - spatial audio           mixdown-equivalence
  - haptics                 sample-equivalence
  - state-feeds             replay-equivalence  (non-physics sim)
  - avatars / digital humans  pose-equivalence  (+ telepresence)
  - volumetric / 4D splats  frame-state-equivalence (WebGPU EWA render)

Verify half (lever 4):
  - asset provenance — signed, energy-accounted lineage for opaque
    captured content WAI does not reconstruct; tamper-evident in-tab.

Cross-cutting: per-class JWP receipt profiles; a native energy meter
(IOReport via macmon, no sudo) emitting receipts with real measured
joules. Codecs gated behind a `codecs` feature (default on) so the
world/wasm sinks build without the C codec chain.

Excludes the separately-evolving neural subsystem (semantic path, GLC
rANS, ONNX tooling) to avoid reverting newer origin work.

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-06-13 23:16:42 -04:00

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Haptics Conformance Corpus

Vectors for the haptics extension's sample-equivalence criterion: given the same wai.haptic.signal, a conforming sink MUST reconstruct the identical canonical u8 buffer (per-channel interleaved [intensity, sharpness]), hence the identical BLAKE3 — on every machine, no tolerance parameter. The touch counterpart of replay/mixdown-equivalence, with the tick replaced by the haptic sample.

All vectors reconstruct in the wai.det.fixed64 floor (Fx linear interpolation of the keyframed envelope → u8). Signals are self-contained (no external sources), so each vector is just a .whap file + its expected signal_hash.

Layout

  • vectors/<name>.whap — the WHAP container (contract + channel signals).
  • expected_hashes.json — per signal: channels and signal_hash.

Vectors:

  • ramp — intensity 0→1 over the duration.
  • thud — full sharp hit, decaying.
  • dual_pulse — two channels (dual-rumble): a strong pulse + a soft steady channel.

Running

cd ../wai-rs
cargo run --features haptic --bin wai_haptic_vectors -- verify ../haptic-conformance
cargo run --features haptic --bin wai_haptic_vectors -- gen    ../haptic-conformance   # regenerate

Pass = hash equality.