The spike reaches the game. E's look.glb (mesh-free, 65 joints, 6.5s 'Look') is bound
through the fleet gate; street peds now glance around during window-shop stops. `lean`
is absent and never existed (E's R28 measurement). Goldens untouched — clips sit outside
every plan hash; the synthetic anchor stays R27's amended 0x5f76e76.
WIRED: loadPedFleet(base, {sit, look}) -> fleet.lookClip, the exact twin of the R16 sit
gate; the shell passes look:!CLASSIC so ?classic fetches NOTHING (a raw fetch would have
breached the zero-fetch-delta covenant — E flagged it, the gate is the answer).
makeActor gains lookA, played only on setLooking(true) — crossfaded (0.3s), not snapped
like sit, since idle->idle-variant reads naturally and there's no replant for a fade to
fight. sim.js gains a dedicated `glance` rng stream, rolled ALWAYS (deterministic) but
only flipped when a clip exists => classic inert at the source. Mutually exclusive with
bench-sit (sit rolls first at 35%, glance takes 40% of the rest). RigPool threads
lookClip; release snaps the glance off so no rig is pooled mid-look.
THE FINDING — my own prediction was wrong, and the measurement caught it. I wrote that a
STANDING clip needs no foot replant ("no hip descent to recover — that trap was sit's
alone"). Measured over the full loop: idle keeps the lowest bone within 4cm of the ground
(-0.04..0.00); look.glb ranges -0.009..+0.205 — the ped HOVERS up to 20.5cm, drifting
through the loop. Same trap, different coat: _rotOnly drops the Hips POSITION track for
rig-height independence, so the clip's authored weight-shift dip can't move the hips and
comes out as the FEET RISING. Sit's one-time replant can't fix it — the float varies per
frame.
FIX: plantFeet() — the per-frame twin of sit's replant. Reset to bind plant -> measure
posed feet -> drop inner by float/scale. ABSOLUTE (reset->measure->correct), never
incremental, so it cannot drift. Reproduces the authored motion exactly: the hips dip
relative to the ground instead of the feet leaving it. Scale-aware like sit's. Foot bones
cached once; cost paid only by glancing peds, on frames their mixer ran (both mixer sites
— the drummer's post-mix lean taught that coupling rule).
PROOFS: foot float 0.205m -> 0.000m (pinned); head yaw sweep span 1.735 (-0.85..+0.89) so
the glance still animates; ?classic — no look fetch, no Look action on any rig, glance
never flips (0); identity signature unchanged, no glance term; sit AND glance never
simultaneous (0); 0 NaN; goldens 0x5f76e76 untouched. A glancing ped is NOT tagged
seated/posed — standing pose at standing stature, so F's no-giants gate needs no arm.
D->F: the pose gate HAS ITS SUBJECT — un-SKIP it. Fresh ?localdepot=1 boot shows a ped
glancing on the footpath, head sweeping, feet planted.
Spike 2 readiness: plantFeet() is the general machinery the brief asked for ("data, not
new code") — riffle and wall-lean should land as clip + roll; the lean's wall-contact
placement is the only genuinely new part.
FLAGGED (A's file, A rests): selfcheck.js:301 still says "the synthetic golden above stays
0x3fa36874" while line 267 pins the amended 0x5f76e76. A stale comment, not a rule — but
the same species as the epoch's five holds, so: flagged, not touched.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Street peds occasionally sit during a window-shop loiter (verandah/footpath
edge). makeActor gains an opt-in setSitting with a SCALE-AWARE re-plant (the
R16 spawnRig re-plant was scale-naive; the sim scales these rigs per-citizen),
played only on sit so walkers/placeholders/?classic are byte-identical. Seeded
via a dedicated benchsit rng stream (no shift to turn/loit/patron; identity
signature unchanged). Classic inert at the source (roll gated on sitClip).
In-shell (default, seed 20261990): head bone 1.466->1.070, bone span
1.667->1.299 (in seated gate [0.9,1.5]), feet re-plant to y=0 and hold through
sit-idle, stand-up restores inner.y 0.929 byte-for-byte, procitySeated tagged,
innerRotY:pi throughout. 9 distinct peds sat naturally per soak. Classic:
fleetSitClip:false, everSat:0. Plan golden 0x3fa36874 unchanged. Draws 35/tris 6k.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The R16 seated drummer sat bolt-upright (the sit clip can't carry a pelvic tilt
— Hips.quaternion is unusable on these rigs). Fix: a small constant forward torso
lean applied POST-MIX. spawnRig({seated}) caches the mid-spine bone (seatBone);
seatedLean(spine) rotates it forward ~0.34 rad each frame after the mixer resets
it (constant offset, not accumulation); band.js calls it for m.seated members.
The drummer leans into the kit — head 0.28m forward of the hips, reads as a real
drummer from the side.
Byte-identical (my signature): standing rigs get no seatBone (found only in the
seated block) and seatedLean runs for seated figs only. Verified with the lean
live — walkers 188/188 face travel, keeper standing rig (stature 1.718,
hasSeatBone:false, innerRotY pi). No existing consumer moves.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Ledger #2 — drummer sits. E's sit.glb is wired into the shared rig stack:
- FINDING: Fable's prescribed _rotWithHips (keep Hips.quaternion) MANGLES the
pose in-shell (head folds to hip height / laid flat) — the fleet rigs' bind
Hips orientation is incompatible with the Mixamo clip's, exactly what _rotOnly
documents. So the sit clip rides _rotOnly (drops Hips.quaternion) like every
clip; _rotWithHips removed. The seated read comes from the leg bends + a new
spawnRig({seated}) foot-replant (opt-in; standing spawns skip it).
- Drummer uses fleet.sitClip when present (retires SEAT_DROP), tags
fig.userData.procitySeated=true (F's gate). Stature ~1.1-1.3m in [0.9,1.5];
reads seated from the crowd POV (kit hides the legs). Graceful SEAT_DROP
fallback when sitClip absent (?noassets / before F wires {sit}).
- BYTE-IDENTICAL proof (load-bearing): with sitClip null AND loaded, keepers are
standing rigs (stature 1.718, innerRotY pi, replanted:false) and walkers 188/188
face travel. Parallel/opt-in path; _rotOnly + makeActor untouched.
- F seam: loadPedFleet(base, {sit}) — pass sit:<gig active> (false under
?classic → no sit.glb fetch, classic covenant intact). Default off, graceful.
Ledger #5 — backline unification. _addBackline plants E's guitar_amp at C's
stage.backline[0] (== D's R15 pose, 0.75m bass clearance) instead of a hardcoded
pose. C dropped its primitive ampStacks, so D owns the backline: placeholder-
persists (primitive amp → GLB swap) with the primitive as the ?noassets fallback.
Verified: GLB swaps, primitive under noassets, no crash, 0 fetch.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- RY audit (debt #4): the ped GLB fleet's visual front is +Z but the whole
system assumed -Z (sim heading math, C's pose ry, placeholder, impostor).
Fixed at the source (rigs.js buildFigure normalises every rig to -Z front)
and dropped band.js RY_FLIP. Corrects keepers/browsers (faced the back wall)
and streamed walkers (moon-walked): 223/223 gig + 188/188 flags-off now face
travel. Visual only, no golden move. keepers.js/placeholder.js/impostor.js
unchanged (fixed for free). Canonical convention -> LANE_D_NOTES for C.
- Instruments (debt #2): E's manifest GLBs swap over the primitives async
(placeholder-persists, fleet-gated -> 0 fetch under ?noassets), guitar/bass
held, mic + kit planted, guitar_amp dressing.
- Drummer (debt #3): 4-piece, seated at C's drums pose (sink + kit occlusion;
reads from the front/crowd POV - a sit clip is the polish).
- Outdoor queue (new queue.js): seeded 2-6 line at the frontage, drains on
admitOne() + auto-drain, consumes B's queueZone or a frontage-hugging door
fallback. F wiring seam documented in LANE_D_NOTES.
- Multi-venue surge (sim.js): setGig -> Set of concurrent venues.
- Interior gig 56 draws <=350; ?noassets+?gigs placeholders, silent-and-fine.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
R9 blocker: interior rig figures were ~2x too tall (keeper crown 3.83m in a 3.4m room,
clipping the ceiling). Root cause in rigs.js buildFigure: it normalised scale by height/headY,
where headY is the head bone's world Y in BIND POSE — but the Mixamo skeleton origin is the hips
(~mid-body), so headY is head-above-hips (~half the standing height), not feet->crown. Every rig
came out ~1.83-2.0x too tall. (The head does NOT move when posed — bind crown 3.209m vs idle
3.205m — so it's a hips-relative measure, not an animation issue.)
Fix: normalise by the feet->crown span (headY - minY, both already computed). buildFigure(rig, h)
now lands the crown at exactly h above planted feet. Fixes keepers, browser rigs, near-tier street
rigs AND the impostor bake (all ride buildFigure). Verified: all 19 fleet rigs crown==1.75m; live
keeper 3.83m -> 1.82m; determinism + dispose-leak soak unchanged.
Regression guard (required): new tools/qa/interior_scale_check.py (Playwright) enters a sample of
shops, injects browser rigs at browse points, asserts every interior fig crown in [1.4,2.0]m AND
< room dims.H AND feet planted. Wired into tools/qa.sh --strict (run_gate => a giant fails qa).
Proven bidirectional: PASS on the fix (24 figs/6 shops), FAIL on a reintroduced giant. Full
qa.sh --strict: 6 passed, 0 failed.
Re-shot laneD/r10_browsers_fixed.jpg. Figures human-sized relative to doors/fittings: yes.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Populate the town at city scale, on budget, deterministic per-citizen identity:
- rigs.js — ported 90sDJsim rig stack: mixamorig canonicalisation so one shared
walk clip drives all 19 peds, head-bone height-normalise, feet-plant, pooled
near-tier actors with walk<->idle crossfade
- impostor.js — 4-yaw sprite-atlas baker + instanced billboards: whole mid crowd
in 1 draw call, tone-matched to the ACES near rigs
- sim.js — deterministic roster, footpath lanes off the street graph, near/mid/far
LOD with hysteresis + hard 24-cap, staggered mixer budget, time-of-day density
- placeholder.js — seeded low-poly box humanoids (frame-one population + ?noassets)
- keepers.js — one keeper per shop at the counter, idle + greet-turn
- 21 ped GLBs (byte-identical from 90sDJsim), citizens_test.html harness,
LANE_D_NOTES.md, 5 beauty shots
Verified in-browser: 200 citizens at max mixer 0.2ms (budget 2ms), near capped 24,
determinism holds (200 identities match seed), no T-pose, ?noassets crash-free.
Consumes Lane A plan.streets with zero adapter. Six adversarial-review bugs fixed
(non-deterministic fleet order, shared-resource disposal on pool eviction,
impostor colour-management).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
