The MaxGlobalLights 128->1024 fix (4d25e04d) was live-tested and made
the eviction pops stop — but with the full 366-fixture pool active,
three unported retail lighting semantics dominate the Facility Hub:
(a) lights reach THROUGH solid floors/walls: retail registers lights
per-CELL (insert_light 0x0054d1b0) so the under-room portals'
purple light never touches the corridor above; our flat
sphere-overlap selection has no reach/occlusion notion — rooms
washed magenta (user screenshot).
(b) stationary weenie fixtures ride the DYNAMIC 1/d falloff (~9x
retail's static 1/d3 bake curve at 3m) — the #143 isDynamic
assignment is wrong for ACE-served world fixtures.
(c) an unexplained striped z-fight-like artifact on lit floor regions
(user screenshot; no coincident dat geometry — the coplanar-pair
sweep came back empty; not a striped texture — all corridor
surfaces are plain Base1Image stone).
Reverted to 128. The cap is now documented as a LOAD-BEARING STOPGAP:
it accidentally approximates per-cell reach by keeping the pool local
to the camera. The #176/#177 root cause (cap eviction popping per-cell
light sets) stays CONFIRMED and fully documented; the real fix is the
A7 dungeon-lighting arc: per-cell light registration + the static
fixture curve + the stripe hunt, THEN uncap. The desired-end-state pin
is kept as Skip with the full pointer. Register row AP-85 rewritten to
match reality; ISSUES #176/#177 back to OPEN with the complete
mechanism story.
Suites: Core 2591+3skip / App 719 green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The dungeon render pair (purple seam flash + stair pop-in) resisted
desk root-causing, but the investigation narrowed the space to two
live theories and shipped permanent apparatus:
- Issue176177DungeonSeamInspectionTests: dat truth — corridor floors
ARE textured drawn PortalSide portal polys; the reciprocal is NoPos;
the 'stairs' are 0x8A020182's ramp shell (vertical portals, zero
statics); CellBSP partitions exactly at portal planes; DXT1 textures
carry zero transparent-mode texels.
- Issue176177FacilityHubFloodReplayTests: production-matched flood
replays — approach/descent/gaze-sweep/walk all healthy with coherent
inputs; ScenarioE pins the flood's collapse-to-root sensitivity under
incoherent (root, eye) pairs.
- Issue176177SeamTransitLagTests: the resolver flips cells within one
tick-step of the portal plane — the 0.33-0.47m [cell-transit] 'lag'
in the gate logs is speed*tick quantization, not membership error.
Refuted (do NOT retry — ledger in the research doc): placeholder
texture, reciprocal z-fight, seal z-fight (seals only fire for
OtherCellId==0xFFFF), root/eye incoherence (production camera sweep is
mm-exact at planes), flood bistability, #119-class statics, undefined
DXT mips (both paths decode DXT->RGBA8; the compressed-array branch is
dead code), DXT1 alpha, fog mix (ramp ~538m), lightning leak (flash==0
in production), viewer-light pops (smooth (1-d/range) ramp).
Filed #178 (A8 double-sided shell stopgap still live) and #179
(lightning flash lacks an indoor gate — dormant). The purple can only
be the fog clear color (undrawn pixels) or the outdoor ambient+sun
tint; discrimination needs ONE probe launch (ACDREAM_PROBE_LIGHT +
ACDREAM_PROBE_PVINPUT + ACDREAM_PROBE_CELL) — protocol in
docs/research/2026-07-06-176-177-render-pair-investigation.md.
Suites: Core 2587 / App 719 green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
