Review debt: book room was 1,245 draws GLB-on. Diagnosed two drivers —
multi-material stock boxes (one draw per face, 6x) and one mesh per stock
item — then batched:
- stock.js: stock boxes are single-material now; every stock mesh tagged
userData.isStock.
- batch.js (new): batchRoom() two-tier merge, called from interiors.js before
the GLB upgrade. Room-level merge of all isStock across every fitting
(grouped by material, world transforms baked) + per-fitting merge of fixture
frames (kept in-group so record bins stay raycast targets for ?dig=1 and the
GLB upgrade can hide the fixture). Uses vendored BufferGeometryUtils
mergeGeometries.
- glb.js: frame-hide is now by isStock tag (not frame-count), so batched
fixtures hide while the room-level stock rides on the GLB.
- interior_test.html: drawSweep() asserts <=350 draws across all type x
archetype (GLB off and on), folded into the soak; exposed as
window.PROCITY_C.drawSweep for F's harness (hook in LANE_C_NOTES).
Result (drawSweep, seed 1990): GLB-off worst 152, GLB-on worst 313
(opshop/hall) — book 1,245 -> 189. Determinism 0 fails / 810, leak-free, dig
still riffles batched bins, worst warm build 38ms (<50), visually identical.
qa.sh --strict GREEN (5 gates).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Round-5 §Lane C task 1 (the v1.1 gate). Map Lane E's R4-late re-exports in
glb.js:
- record_crate FIXED (E stripped sourceless AO/roughness slots) → crate/
recordBin upgrade to plastic crates with the procedural sleeves inside;
removed the stale "fails to load" comment.
- counter → 'counter_till' (the real ~1.6m timber counter WITH a modelled
till; NOT the 4m balcao). Footprint-fit + floor-plant + keeper-stand pose
unchanged.
- Double-till resolved (documented): counter_till carries its own till, so
the separate cash_register attach is dropped whenever the counter GLB is
live (falls back to cash_register on the primitive counter otherwise);
milkshake_mixer stays on the milk-bar bench, lifted +0.10m onto the taller
GLB counter.
Validated (GLB on, via depot): sweep+soak {throws 0, path 0, det 0, worst
10.4ms}, 0 rooms with a visible primitive till, leak-free vs a saturated
baseline (the transient 2geo/4tex first-sight is record_crate + counter_till
cache-fill). Primitive path byte-unchanged (glb.js-only edit). qa.sh --strict
GREEN. Contact sheet docs/shots/laneC/glb_v1_1_r5.jpg. → F can tag v1.1
(LANE_C_NOTES.md).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
