Campaign OVERHAUL S3 chunk 1 fix round 2 (docs/research/2026-09-01-overhaul/
s3-walk-ownership-map.md §11.6), applied on top of 36be6b598 after the
three-lens re-review. H1-H6, the last round the plan allows.
H1 — the weather OC printed 2-4 times per interior-rooted frame instead of
once: the print (and the `_sky.RenderWeather` mesh draw it sits beside) lived
inside `DrawLandscapeSliceLate`, which `RetailPViewRenderer` calls once per
active `OutsideViewSlices` entry. Moved both into a new
`RetailPViewPassExecutor.DrawWeatherOnce`, called ONCE, unclipped/no-scissor,
after the slice loop in `DrawLandscapeDynamicsPhase` — retail's own
`GameSky::Draw(1)` runs once, after `LScape::draw`'s whole landblock loop.
The gate is extracted as a pure `ShouldDrawWeatherOnce(bool,bool,uint)`
predicate (retail's `SmartBox::is_player_outside` ANDed with the two render
toggles) so `RetailPViewPassExecutorTests` can pin "no OC while the player
stands indoors" without a live GL/DAT `SkyRenderer`; two structural
(CompiledCallGraph) tests prove the call moved out of the per-slice loop and
that the mesh draw + print each fire exactly once per invocation — this
codebase has no existing runtime-construction fixture for
`RetailPViewPassExecutor`, so the pin is structural + a testable pure gate
rather than an end-to-end GL drive. One deliberate deviation from the literal
"gated exactly as today": the print now runs through `_sky?.RenderWeather(...)`
(null-conditional, matching every other `_sky?.RenderSky(...)` call site in
this codebase) instead of an explicit `if (_sky is not null)` wrapper — a
missing sky asset no longer also suppresses the transcript print, since the
print's only job is trace fidelity and retail's own `GameSky` is never null.
H2 — WalkFrameDriver's EC-print comment still claimed "EC and OC counts are
always exactly equal"; replaced with the real citation
(holtburg-doorway-still.walk.log:1126,1131,1134,1137 — four EC prints for one
cell across four look-in DC turns), matching WalkTranscriptDump.
PrintEnvCellShell's own comment (already corrected in round 1).
H3 — the eight-kind signature's ORACLE side
(WalkTraceReplayContext.Signature8(WalkOracleFrame)) derived EC/OC from each
DC's cell list — the SAME derivation the REPLAY side's Recorder already used,
so the comparison could never disagree with itself on EC/OC placement or
content (how G7's SC-ordering regression shipped green with LC/SC). Now reads
its own literally captured EC/OC events, excluding only the trailing
per-frame weather OC — refined beyond the spec's literal "last event + P-cell
id" rule with an additional "P cell itself looks outdoor" check, after
cathedral-arrival and foundry-deep both proved the naive rule also strips an
interior root's OWN real trailing object-list turn when its nearest cell (the
reversed flood loop's last draw) happens to be the camera's own root cell.
All four kit-pose rows still reproduce: three exactly; #458 (this round's new
issue, formerly an inline-only note) re-verified at the SAME token index 165
under the new literal comparison.
H4 — OnSortCellTurn ran RequireOpenFrame + two range validations before
testing the flag. Since the hook is print-only (no stream side effect, unlike
OnLandCellTurn's unconditional WalkFrameEvent record), the flag check now
runs FIRST and returns immediately when off — flag-off cost drops to one
interface dispatch per visited land cell.
H5 — launch-options.md's ACDREAM_DUMP_WALK_TRANSCRIPT row: measured
≈1,200-1,400 lines per outdoor frame (terrace-edge 1,384; cathedral-arrival
1,269; doorway 1,187), replacing the earlier "600-800" estimate; documents
H4's residual flag-off interface-dispatch cost.
H6 — filed docs/ISSUES.md #458 for round 1's LOD-boundary land-cell
divergence (previously only an inline test comment); the InstalledDat lane's
known-failure set is now four (two #383 layout tests, TowerAscent, #458) —
confirmed by a clean run.
MUTATION CHECKS (both restored after confirming failure):
- H1: deleting the OC print inside DrawWeatherOnce made
DrawWeatherOnce_DrawsTheWeatherMeshAndPrintsExactlyOnce fail with
"Assert.Single() Failure: The collection did not contain any matching
items".
- H3: reversing AppendFloodTurns (OC before EC) made
Still_fixture_first_frame_reproduces_exactly(cathedral-arrival.walk) fail
("walk diverged from retail (cathedral-arrival.walk)"), diverging at token
index 1241: expected "EC:f4180112" vs actual "OC:f4180112".
Gates: hermetic App suite 6823/6823 passed; InstalledDat lane 244/249 passed
with exactly the four known failures (two #383 layout tests, TowerAscent,
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Campaign OVERHAUL S3 chunk 1 fix round 1 (docs/research/2026-09-01-overhaul/
s3-walk-ownership-map.md §11.5), applied on top of 079483bb6 after the
three-lens review. G1-G10, each verified against source and (where the item
adds a pin) mutation-checked.
G1 — the flag-off integration test was vacuous: Collect_TranscriptFlagOff_
ProducesNoConsoleOutput drove ONE frame, and WalkOracleTrace.Parse
structurally discards the last (open) frame, so it passed whether or not
the flag gate worked. Now drives TWO frames and asserts BOTH that Parse
sees zero frames AND that no captured line starts with any of the ten
transcript-kind prefixes (F /P /LS/LC /SC /BLD /DI /DC /EC /OC ) — robust
to unrelated console noise from parallel test classes.
G2 — LC/SC computed LodCellId before testing the flag (~1,300 land-cell
turns/frame of division/modulo/checked-conversion work paid even when the
flag is off). Both OnLandCellTurn and the new OnSortCellTurn now guard the
LodCellId call itself, not just WalkTranscriptDump's internal check.
G3 — the flag-on round trip never exercised LC/SC/BLD (the T2 fixture's
stub 1x1 landscape has zero blocks). New
OutdoorRoot_TranscriptFlagOn_PrintsLandscapeThenLandCellThenSortCellThen
Building_InOrder drives RetailFrameWalk.DrawLandscape directly (the same
deterministic "CY-only" admission technique the existing outdoor LandCell
test uses) over a landscape with one block + one building, and asserts
LS < LC < SC < BLD by position, with the exact cell/building ids.
G4 — the parts/alpha-depth smoke tests asserted FL/PC (Flushes/
DrawCellsSamples) but never AM/PM (MeshAdds/PortalPolyDraws) for the
alpha-depth log, even though PD/DM were already asserted for the parts
log. Added the missing Assert.Contains for MeshAdds and PortalPolyDraws.
G5 — launch-options.md's side-effects column now states the flag off/on
costs explicitly ("one bool read per print site, nothing else" / "one
console line per walk turn, ≈600-800 lines per outdoor frame").
G6 — removed the "DI f4180108... no, a9b4013f" self-correction in
Oh_doorway_still_first_frame_diff's comment; added a one-line note on why
it and Oh_foundry_deep_... stay bespoke Facts rather than folding into the
Theory (no functional reason, just history).
G7 — SC printed from OnLandscapeCellTurn, which RetailFrameWalk.
DrawLandscape calls AFTER DrawBuilding — retail's own order is
LC -> SC -> BLD (terrace-edge.walk.log:2331-2333), not LC -> BLD -> SC.
Fixed by adding IWalkEventSink.OnSortCellTurn, fired at the DrawSortCell
entry point (same alwaysDrawObjects||cellInView gate, before DrawBuilding);
the driver moves its SC print there and OnLandscapeCellTurn no longer
prints one.
G8 — the trailing "OC <viewer land cell>" retail prints once per complete
outdoor frame is GameSky::Draw's weather branch calling
DrawObjCellForDummies(after_sky_cell) @0x005070da, not a walk turn.
RetailPViewPassExecutor.DrawLandscapeSliceLate now prints it at the point
it actually calls RenderWeather; PrintObjectCellTurn's doc, which denied
this line existed, is corrected. New
Oh_terrace_edge_outdoor_frame_ends_with_the_weather_ObjectCellTurn pins
this directly against the OH capture: every complete outdoor frame's last
event is an OC whose cell id equals that same frame's own P-line cell id.
G9 — "EC and OC counts are always exactly equal per pose" was false
(terrace-edge: 12 EC vs 16 OC, the extra 4 being G8's weather OC, which
has no EC counterpart). The visit-scoped/stamp-dedupe conclusion was
right; only the count claim needed fixing. Both doc sites corrected.
G10 — the conformance signature dropped LC/SC/EC/OC entirely, which is
how G7 shipped green: no test ever compared their placement. Recorder now
tracks LC/SC via the new OnLandCellTurn/OnSortCellTurn hooks and derives
EC/OC per DC from PView::DrawCells's own two reverse loops (shell
far-to-near, then object-list far-to-near) — a look-in flood's DC derives
them immediately, the interior root's OWN flood defers to
OnInteriorFloodDrawTurn (verified against cathedral-leak.walk.log:4,1328,
where the root DC's own EC/OC print last). WalkTraceReplayContext.
Signature8 applies the identical derivation to oracle frames and never
produces the trailing weather OC (G8's own dedicated pin covers that
separately, matching the spec's "exclude from the comparison, assert
separately" instruction). Used ONLY for the four OH-capture-rooted
conformance rows (the older FW0 fixtures predate the LC/SC/EC/OC
breakpoints and carry none of those lines).
Applying the eight-kind check surfaced a real, separate bug: WalkLandscape
DatBuilder never set WalkLandBlock.LandblockId, so every LC/SC token any
DAT-built world ever produced read landblockId=0 — latent because the old
four-kind signature filtered LC/SC out. Fixed (one field, test-fixture-
only, no production behavior change). With that fixed, three of the four
OH rows (terrace-edge, cathedral-arrival, foundry-deep) reproduce EXACTLY
at the eight-kind level. Oh_doorway_still_first_frame_diff still diverges
by one extra LC/SC pair (token index 165: replay draws LC:a9c90001|
SC:a9c90001 that retail never does) — a real WalkLandscape.CheckBlocks
visibility question at a ring-2/ring-3 LOD boundary, out of this round's
print-only scope, needing the retail oracle to resolve. Marked
[Trait("Status","KnownFailure")] with the exact position recorded in its
own doc comment, matching TowerAscent's existing pattern — the InstalledDat
lane now shows FOUR known failures (the pre-existing two #383 layout tests
+ TowerAscent, plus this new finding), not three; never weakened the pin
itself.
Mutation checks (all four restored after observing the failure):
- G1: forcing WalkTranscriptDump.Enabled true made
Collect_TranscriptFlagOff_ProducesNoConsoleOutput fail with
"Assert.DoesNotContain() Failure: Filter matched in collection ... Collection:
[\"DI 00000100\", \"DC pv=00000000 ov=1 n=2: 00000100 00000101\", \"LS\", ...]".
- G3: deleting PrintLandCell's Console.WriteLine made the new outdoor test
fail with "expected an LC line".
- G4: making MeshAddPattern unmatchable made all five
Alpha_depth_log_parses_with_nonempty_samples rows fail with
"Assert.Contains() Failure: Filter not matched in collection".
- G7/G10: moving OnSortCellTurn back after DrawBuilding made the
terrace-edge conformance row fail with "walk diverged from retail
(terrace-edge.walk)", first divergence exactly at its first building
(f518002e): expected ...SC:f518002e|BLD:f518002e..., actual
...BLD:f518002e|SC:f518002e....
Gates: hermetic lane 6,816/0 (baseline 6,814 + G3's new test + G8's new
test); InstalledDat lane 244/4 known failures (two pre-existing #383
layout tests + TowerAscent + the new Oh_doorway_still_first_frame_diff
finding, documented above).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Campaign OVERHAUL S3 chunk 1 (docs/research/2026-09-01-overhaul/s3-walk-ownership-map.md
§11): the transcript-kinds/fixtures/print-only-emitter half of the walk work,
built AFTER chunk 3 landed LC/SC (the per-land-cell interleave).
B1 — the emitter (print-only, never gates admission/depth/order):
- ACDREAM_DUMP_WALK_TRANSCRIPT=1 is read once into RuntimeOptions.DumpWalkTranscript
(rule 4) and handed to RenderingDiagnostics.DumpWalkTranscriptEnabled (rule 5,
a settable static, not a second env read) once at GameWindow construction — the
deep walk call sites have no reachable RuntimeOptions reference.
- WalkTranscriptDump (new) prints the OH line kinds — F/P/LS/LC/SC/BLD/DI/DC/EC/OC —
to Console at the exact points retail's cdb breakpoints sit
(tools/walk-oracle/oh/oh-capture-walk.cdb.template), gated internally so every
method bails out before any string work when the flag is off.
- Every call site lives in WalkFrameDriver.cs, at the point the driver already
processes that turn: Collect (F/P, after BeginFrame), Emit's DI/LS/DC/BLD cases,
OnLandCellTurn/OnLandscapeCellTurn (LC/SC, at LOD resolution via the new
WalkTranscriptDump.LodCellId helper, before the 8x8-bucket expansion), and the
EmitFloodTurns/EmitCellContentsTurn loops (EC/OC — both UNCONDITIONAL per flood
visit, matching the OH captures' always-equal EC/OC counts; retail's own
DrawEnvCell stamp dedupe sits past the breakpoint, inside the function).
- DC's "pv=" field encodes interior(0)/outdoor(1) as an 8-hex-digit 0/1 so it
satisfies the same pv=[0-9a-f]{8} regex real captures use; derived from
_currentDcStage at the DC event (CellStatic = interior pview, else outdoor).
- The frame-root pose (origin, quaternion) is a reasonable orthonormal basis built
from the walk's own CyPlane.Normal forward vector and WalkLandscape's own
ViewerWorldOriginX/Y block origin — self-consistent for the round-trip parser,
not a byte-exact reproduction of retail's Frame (B4's diff never compares P).
B2 — WalkOracleTrace learns EC/OC event kinds (LC/SC already existed from chunk 3).
New WalkOraclePartsTrace.cs holds two small read-only parsers for the parts log
(PD/DM) and the alpha-depth log (AM/FL/PM/PC) — records only, no validator, no
canonical JSONL, no new tool.
B3 — fixtures: the five OH walk captures join WalkOracleTraceTests.AllFixtures
(now (root, name) pairs — FW0's own root plus the OH capture directory) for
parse + complete-frame pins. The four kit poses join WalkTraceConformanceTests'
still-fixture coverage as NEW rows (the OH cathedral-arrival root is f4180108,
not FW0's f4180106): terrace-edge/cathedral-arrival extend the existing theory
(now (root, fixture) parameterized); holtburg-doorway-still and foundry-deep get
dedicated tests mirroring their FW0 siblings' own structure. Finding: the OH
foundry-deep capture's own retail transcript draws 12 real town buildings through
its exit chain (unlike the FW0 capture, which apparently reached none at that
pose) — the FW0 test's stub 1x1 landscape undershoots it (first divergence:
nothing after "LS" vs retail's real BLD content); fixed by building the full
landscape/building world via WalkLandscapeDatBuilder.Build, matching the shared
theory's own approach, not by skipping or weakening the row.
WalkTraceReplayContext.Signature(WalkOracleFrame) now filters to the DI/DC/BLD/LS
kinds (LC/SC/EC/OC never had a WalkEvent analogue in RetailFrameWalk's own
four-kind vocabulary) instead of mapping them to a "?" placeholder, so the still-
fixture comparison stays apples-to-apples on both sides.
B4 — WalkTranscriptSignatureDiff (test-side only, no runner/tool): diffs two
transcripts (raw lines or parsed frames) at the full DI/DC/BLD/LS/LC/SC/EC/OC
level, reporting the first divergent event and position per frame. Proven over a
synthetic self-vs-self-minus-one-event pair (SignatureDiff_ReportsTheExactRemovedEvent).
Tests: T1 (flag off) is split into a unit-level zero-allocation/zero-output check
on WalkTranscriptDump itself (the walk's pre-existing allocation, e.g.
RetailFrameWalk.EmitDrawCells's per-call array, is untouched by this chunk and not
independently zero-alloc) and an integration-level Collect() check; both assert via
WalkOracleTrace.Parse returning zero frames rather than raw string equality, which
is robust to unrelated Console.WriteLine noise from other test classes running in
parallel (a real, observed hazard — WalkFrameDriverTests joins
CameraDiagnosticsCollection for the same reason CornerFloodReplayTests/
Issue181WallPressEquilibriumTests already do, issue #251). T2 proves the
emitter/parser round trip on a synthetic interior frame. T3's InstalledDat rows all
pass. T4: LaunchOptionsDocumentationTests green with the ACDREAM_DUMP_WALK_TRANSCRIPT
row (both directions).
Gates: hermetic lane 6,814/0 (was 6,795 baseline + new tests), three consecutive
clean runs; InstalledDat lane 245/3 known-failures (the two pre-existing #383
layout tests + TowerAscent) unchanged from baseline.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Erik