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.