Commit graph

60 commits

Author SHA1 Message Date
Erik
a755b764bf test(runtime): add unattended connected R6 soak
Drive turn, movement, jump, and combat through the production InputDispatcher so connected Release testing works without an interactive Windows desktop. Track held automation actions through normal completion and every shutdown path.

Add a seven-destination ACE route with post-liveness memory, allocation, update, fatal-log, outbound-movement, and graceful-close gates. Record dynamic ACE population changes as context instead of a false lifetime oracle, and document the accepted rebaseline.

Co-authored-by: OpenAI Codex <codex@openai.com>
2026-07-20 12:12:08 +02:00
Erik
363e046112 feat(vfx): decode retail hooks and typed tables
Replace the incomplete package path with one DatCollection-backed compatibility seam for PhysicsScripts and Animations. Preserve CreateBlockingParticle's inherited payload and following cursor, route every production and audit consumer through the corrected loaders, and apply retail's post-UnPack StartTime ordering.

Add exact stored-order PhysicsScriptTable upper-threshold resolution, high-byte DID and embedded-ID validation, plus live effect profiles with Setup-to-PhysicsDesc precedence across top-level and attached entity lifetimes. Keep blocking execution deferred and narrow TS-11 accordingly.

Pin synthetic malformed/cursor/order fixtures, installed-DAT blocking and recall audits, high-index IDs, IEEE boundaries, profile teardown, and ordinary decoder parity; synchronize architecture, inventory, milestones, roadmap, research, and memory.

Co-Authored-By: Codex <noreply@openai.com>
2026-07-14 08:17:44 +02:00
Erik
d53fe30ffe research(vfx): pin retail projectile and effect oracle
Establish the executable-backed PhysicsDesc, sequence-gate, PhysicsScript, CreateBlocking, particle-anchor, projectile, and Hidden-state behavior before changing runtime code. Correct stale blocking/threshold claims and synchronize the project instructions with the current UI architecture and matching retail binary.

Add copyright-safe packet and DAT-container fixtures plus a failing installed-DAT conformance audit for projectile shapes, typed tables, recall motion, default scripts, and raw CreateBlocking inventory.

Co-Authored-By: Codex <noreply@openai.com>
2026-07-13 22:40:42 +02:00
Erik
256c1930bd fix(combat): restore retail power bar layers
Preserve the authored gray track, trained-Recklessness range, live bright charge meter, and independent desired-power thumb while keeping Speed and Power over gray side regions. Correct retail text justification value 2 to left alignment and retain direct RenderSurface decoding in the texture inspection tool used to verify the assets.

Co-Authored-By: Codex <codex@openai.com>
2026-07-12 21:14:14 +02:00
Erik
8257b9ba10 fix(#186): render side-cull mis-sided thin connectors — use dat PortalSide bit, not AABB centroid
The indoor GREY flap at a top-floor connecting room. The render portal side-cull
reconstructed each doorway's "interior side" (PortalClipPlane.InsideSide) from the
cell's AABB CENTROID. For a THIN connector cell (0xF6820118, 5 render polys), the
bounding-box center falls on the WRONG side of the 0118->0116 doorway, so the eye
read as a back-portal and the forward room 0116 was culled -> the aperture showed
the fog clear color = grey.

Retail's PView::InitCell (0x005a4b70) and acdream's own PHYSICS path
(CellTransit.cs:190) both read the explicit dat PortalSide bit ((Flags&2)==0)
instead of guessing from geometry. Port the render path (GameWindow.BuildLoadedCell)
to the same bit.

Proven by a live retail cdb trace (retail draws 0116 from the 0118 root at the grey
pose; tools/cdb/issue186-connector-decider.cdb) + an offline dat diagnostic
(Issue186...PortalSide_CentroidVsDatBit_AtGreyEye): the dat bit matches the old
centroid on every portal of these cells EXCEPT the one #186 breaks, so the switch is
surgical. Full regression green (App 741 / Core 2631); the CornerFlood + Issue113
dat-loading helpers updated to the same bit confirm every real Holtburg/tower/hall
cell floods identically. Touches neither PortalSideEpsilon nor the deleted
EyeInsidePortalOpening rescue (the two DO-NOT-RETRY traps).

Live-gated: user-confirmed no grey at any camera angle; probe shows 216 root=0118
frames, 0 still grey (0118->0116 now TRV, vis=4).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-08 15:06:33 +02:00
Erik
8bb8b20411 tools+plan(#182): resolve-capture histogram classifier + verbatim player-physics rebuild plan
Slice 0 of the #182 verbatim rebuild. The classifier reproduces the design
baseline off acdream-crowd-resolve.jsonl (2883 move-intent resolves:
52.8% OK / 25.1% partial / 22.1% stuck / 107 airborne-stuck) — the A/B
'before' the rebuild measures against (retail target ~78% OK, 0 airborne-stuck).

The plan refines the design spec's §7: the airborne-stuck bleed is the
frames_stationary_fall counter (validate_transition increments; handle_all_collisions
zeros velocity at fsf>1), NOT the cached_velocity field (a separate reporting value).
Slices reorder accordingly; calc_friction (retail 0.25 vs acdream 0.0) is an
orthogonal L.3c divergence kept out of scope.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-07 13:37:15 +02:00
Erik
80881ed6f1 docs(#182): crowd-collision investigation outcome + velocity-model rebuild design
The #182 CSphere port (96ae2740) failed its visual gate and introduced an
airborne "stuck in the falling animation" regression. A player-attributed retail
cdb trace (tools/cdb/retail-crowd-jump3.cdb) proved retail's LOCAL client fully
runs player-vs-creature collision (76 land_on_sphere, 188 COLLIDED, 130 SLID,
~78% OK, glides across) -- NOT server-authoritative (an earlier unfiltered
land_on_sphere=0 read was a false lead the attributed trace refuted).

acdream's same-repro capture: 50.9% OK, 22.4% stuck, 115 airborne-stuck. Root
divergence: retail CPhysicsObj::UpdateObjectInternal (0x005156b0, pc:283688) sets
cached_velocity = (resolved - old)/dt -- velocity from ACTUAL movement, so a
blocked jump collapses to ~0 -> gravity -> the player falls/glides. acdream
integrates velocity + reflects on collision (PlayerMovementController ~:1008-1069),
so the jump velocity (~18) persists against the creature -> hang.

Fix = verbatim rebuild of the per-frame player-physics loop (UpdateObjectInternal
chain), velocity model first, transition internals kept. Full design +
retail function inventory + the capture apparatus + retail target numbers:
docs/superpowers/specs/2026-07-07-player-physics-update-verbatim-rebuild-design.md.
Implementation deferred to a fresh session (user decision). Also files #183
(floating distant scenery, observed during testing). #182 stays as the base.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-07 13:07:56 +02:00
Erik
554af5042d park #177: retail cdb trace DISPROVES the portal-flood theory
Attached cdb to live retail (PDB MATCH), broke on PView::DrawCells (0x005a4840),
dumped cell_draw_num + cell_draw_list cell ids + the eye
(Render::FrameCurrent->viewer.viewpoint) while descending the Facility Hub spiral.
Retail's flood is dynamic and IDENTICAL in character to ours: from the spiral cells
it swings num 3->27 with gaze and collapses to 3 cells at many poses (cam=015d ->
{015d 015e 015f}). Our flood does the same (3->43). So retail does NOT keep the
staircase where we drop it -- the flood is exonerated as the cause.

Session trail (all in ISSUES #177): ruled out lighting, membership, camera coherence,
the collision sweep, the 0178/0182/0183 handoff cells, and edge-on eye-in-opening
(fix#1 shipped -> visual-gate-failed -> reverted, PortalVisibilityBuilder + AP-86 both
restored exactly). Freshest un-chased lead: the steps are STATIC objects (GfxObj
0x010000DE x6/cell) drawn via the viewcone cull, not cell shell.

Adds: Issue177StairDescentCameraFloodTests (real-camera+flood + composition +
flood-depth characterization pins) and a reusable retail-cdb capture toolchain
(tools/cdb/pview-verify.cdb, pview-spiral2.cdb with the correct top-level-qd detach --
qd in a CONDITIONAL bp action does NOT fire and strands cdb attached).

No production code change (fix#1 reverted). PARKED per user; M1.5 critical path next.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-07 08:43:21 +02:00
Erik
8cb3176daa feat(lighting): SelectForCell (all dynamic lights per EnvCell) + #176 handoff — residual is a runtime z-fight
cdb trace of LIVE retail (tools/cdb/issue176-floor-light.cdb, binary<->PDB MATCH) PROVED retail
applies ALL its dynamic lights — 4 intensity-100 magenta portal lights (d3dIdx 3-6, falloff 6) +
the viewer fill (d3dIdx 1, 2.25) — as D3D hardware lights to EVERY Facility Hub cell, every frame,
stable. So the faceted purple wedges on the floor are retail-FAITHFUL. acdream did a per-cell
SelectForObject sphere-overlap 8-cap for cells, so the portal set could differ/flip per cell.

- LightManager.SelectForCell (retail minimize_envcell_lighting 0x0054c170): ALL dynamic lights
  applied unconditionally (shader range cutoff zeroes non-reaching = D3D hardware range), then
  nearest static torches fill remaining slots. Wired into EnvCellRenderer.GetCellLightSet.
  Objects keep SelectForObject (minimize_object_lighting). Pins:
  SelectForCell_AppliesAllDynamicLights_EvenOutOfReach + _SameDynamicSet_ForCellsFarApart_NoFlap.
- Apparatus: [light-detail] gains owner/cell/dyn (pinned the culprit = 2 portal weenies
  0x000F4247/48 in 0x8A020118/19, intensity=100 magenta); CellVertexNormals_SmoothOrFaceted_Dump
  (corridor floor uses SMOOTH per-vertex dat normals, not flat); tools/cdb/issue176-floor-light.cdb.

#176 RESIDUAL is NOT this fix. It's a RUNTIME draw z-fight in the seam floor. Eliminated (evidence):
NOT lighting (per-light cap + this both no-change), NOT membership (render cell 0x8A020164 stable
100% of 188k frames / 526 angles, res=None), NOT dat geometry (coplanar sweep empty at z=-6 floor
incl. cell 0164). NEXT = RenderDoc pixel-history. Full handoff + DO-NOT-RETRY:
docs/research/2026-07-06-176-seam-floor-zfight-handoff.md. Suites green: Core 2599 + 2 skip.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-06 13:55:16 +02:00
Erik
97e098bf91 docs(L.2g-S2): verbatim inbound-funnel pseudocode + observer cdb trace script
Pseudocode for the S2 port (unpack_movement case 0 / move_to_interpreted_state
/ apply_current_movement / apply_interpreted_movement / DoInterpretedMotion),
anchored on decomp lines + validated against a LIVE cdb trace of a retail
observer (per-UM DIM order confirmed: style -> forward -> sidestep-stop ->
turn-stop; empty UM = wholesale Ready stop).

Also settles the packer question: RawMotionState::Pack (0x0051ed10) is pure
static-default-difference — outbound L.2b port already verbatim; the
empty-vs-explicit walk variance between captures is driver-client state,
handled identically by the wholesale apply.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 18:33:23 +02:00
Erik
8fa66c23d5 fix(D.2b): Slice 2 — retail-exact doll pose, camera + heading (visual gate)
The paperdoll doll now matches retail: correct held pose, framing, and
facing. Three decomp-sourced fixes closed the visual gate.

Pose: cdb-confirmed m_didAnimation = 0x030003C0 (gmPaperDollUI), played
once + HELD (set_sequence_animation framerate=0, RedressCreature
0x004a3c22). Dumping the dat showed the 29-frame anim has only two
distinct keyframes — frame 0 (transitional, bent arm) and frames 1..28
(byte-identical: the settled stance, arms down + leg back) — so
ApplyPaperdollPose applies the LAST frame statically (no looping).

Camera: ported verbatim from UIElement_Viewport::SetCamera (decomp
0x004a5a39). position (0.12,-2.4,0.88); direction (0,0,0) => IDENTITY
view frame => look straight down +Y, ZERO yaw; FOV pi/4 (CreatureMode
ctor default 0x004543cf); ambient 0.3. The prior hand-tune aimed the
camera at mid-body, adding a ~2deg yaw that turned the doll's face away
— full-body framing comes from eye-height + FOV, not aiming.

Heading: retail Frame::set_heading(h) (0x00535e40) builds facing
(sin h, cos h); System.Numerics CreateFromAxisAngle(+Z, +h) rotates the
body's default +Y forward to (-sin h, cos h) — the X-lean was MIRRORED
(~22deg), the real cause of the turned-away face. Negate the angle to
land on retail's facing.

Wrap-up: stripped the temporary O/P pose-frame stepper + Slice2
diagnostics; divergence register AP-66 reworded, AP-67 (RTT doll render
vs in-cell CreatureMode::Render) + AP-68 (per-race UpdateForRace
unimpl) added; DollCameraTests pinned to the retail values + a zero-yaw
guard. tools/cdb/paperdoll-pose.cdb = the pose-DID capture script.
Build + full suite green (Core 1579 / Core.Net 343 / App 597 / UI 425).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-25 13:16:27 +02:00
Erik
c83fd02642 merge: bring main (UN-7, #140 filing, D.2b UI rows) into A7 Fix D round-2 branch
Resolves the divergence-register conflict: kept the accurate per-VERTEX AP-35
(Fix A shipped per-vertex; main's row was the stale pre-Fix-A per-pixel text),
kept main's UI rows AP-37..AP-42, and renumbered this branch's torch-gate row
AP-37 -> AP-43 (AP-37 was taken by main's LayoutDesc row). AP count 41 -> 42.
Retargeted the AP-37 references in WbDrawDispatcher + the CHECKPOINT to AP-43.
Marked ISSUES #140 RESOLVED (b7d655b) with the corrected root cause.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-20 09:29:53 +02:00
Erik
c407104ab9 docs(lighting): A7 Fix D investigation RESOLVED + implementation spec (#140)
Resolve the Fix D contradiction with decomp (workflow wf_f660eb88 + adversarial
verify) + 4 live cdb captures. The D3D-FF model was the WRONG oracle: retail has
TWO light systems — STATIC torches BAKE into wall vertices (calc_point_light,
triple-clamped: range gate + per-channel min(scale*color,color) + per-vertex
[0,1] from black), DYNAMIC lights go D3D hardware. The captured intensity=100 is
the purple PORTAL (magenta, dynamic), not a wall torch. Ground truth: 38 static
warm torches (orange (1,0.588,0.314)/cream, intensity=100, falloff 3-5) + 2 dynamic.

acdream over-brightness = two confirmed bugs: D-1 mesh_modern.vert folds
ambient+sun+torches into one UNCLAMPED accumulator (single frag clamp) -> warm
blowout; D-2 EnvCellRenderer never binds SSBO 4/5 so the cell shell reads a leaked
light set. Spec: D-1 in-shader clamp-split (clamp the torch sum on its own before
ambient/sun); D-2 bind the shell's own per-cell light set (mirror WbDrawDispatcher);
LightBake.cs is the C# conformance oracle. Adds the 4 reusable cdb capture scripts.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-18 17:08:27 +02:00
Erik
ccaf188e41 @
feat(D.2b): exact retail chat colors from a live cdb dump

Attached cdb to a live retail acclient (PDB-matched) and read the named RGBAColor
constants at acclient 0x81c4a8+ (colorWhite/colorBrightPurple/colorLightBlue/
colorGreen/colorLightRed/colorGrey), used by ChatInterface::BuildChatColorLookupTable
@0x4f31c0. Replaced the approximated RetailChatColor palette with the ground-truth
values: speech=white, tell=colorBrightPurple(1,.498,1), channel=colorLightBlue
(.247,.749,1), system/popup=colorGreen(.5,1,.498), combat=colorLightRed, emote=colorGrey.
Capture scripts saved under tools/cdb/.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@
2026-06-16 10:08:42 +02:00
Erik
0cb97aa594 UN-2 RESOLVED: GetMaxSpeed x4 is byte-verified retail; doc-comment was the misread
The register's UN-2 row recorded a contradiction: the GetMaxSpeed XML doc
claimed the bare run rate was retail-correct (~5.9 m/s catch-up, calling
the xRunAnimSpeed multiply a misread), while the implementation multiplied
by RunAnimSpeed citing ACE. Settled against the binary, not the pseudo-C:

- BN pseudo-C (acclient_2013_pseudo_c.txt:305127) renders get_max_speed as
  void with a bare `this->my_run_rate;` because it DROPS x87 instructions.
- Disassembling the PDB-matched v11.4186 binary at VA 0x00527cb0: all THREE
  return paths end `fld <rate>; fmul dword ptr [0x007C8918]; ret`, and the
  .rdata dword at 0x007C8918 is 4.0f. Sibling get_adjusted_max_speed
  (0x00527d00) carries the same trailing fmul. Verifier committed at
  tools/verify_un2_fmul.py (PE parse + byte decode, rerunnable).
- Retail paths: weenie null -> 1.0 x4; InqRunRate ok -> queried x4;
  InqRunRate failed -> my_run_rate x4. ACE MotionInterp.cs:665-676 matches.

Changes:
- Doc-comment rewritten: the implementation is retail-correct; the catch-up
  speed 2 x get_max_speed ~= 23.5 m/s at run 200 IS retail. The 1-Hz
  remote-blip symptom the old comment attributed to this multiply is
  therefore UNEXPLAINED by it (if it recurs: #41 family, not this).
- Weenie-null path aligned to retail's LITERAL 1.0 default (was MyRunRate).
- Tests re-pinned to the three retail paths (the old NoWeenie test pinned
  the non-retail fallback).
- Register: UN-2 row deleted per the retire rule (6 -> 5 UN rows);
  shortlist renumbered.

This is the 2nd confirmed instance of the BN x87-dropout artifact class
(memory: feedback_bn_decomp_field_names) deciding a register row.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-12 13:17:50 +02:00
Erik
c007f5a962 CLAUDE.md: adopt the condensed structure, updated to current truth (-503/+176)
Reconciles the wip/main-local-claudemd-condensation distillation (made
~2026-06-03 by a parallel session) onto post-merge main:

- Current state section: ONE status block (<=5 lines + pointers, by
  rule) + canonical reading order + the two digest entry points + the
  divergence register; replaces status sediment scattered through
  Goal/Roadmap sections.
- Kept from the merged main (the condensation predated them): the
  memory/digest rule in How to operate, the divergence-register
  section + phase-checklist item, de-dated milestone rules.
- Dropped: shipped-phase ship-notes, stale next-phase candidate lists,
  the superseded reference_render_pipeline_state pointer.
- Also salvaged from the wip branch: .gitignore entries (.obsidian/,
  claude-memory junction) + pdb_extract.py __main__ guard. The wip's
  TextureDump edit predates main's args support (discarded) and its
  physics-probe edits were STRIP-marked leftovers (discarded).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-06-12 12:42:27 +02:00
Erik
3c178b28e6 diag(cdb): flap-cam-measure.cdb — retail eye-hover + CameraManager smoothing capture
Attaches to live retail, dumps CameraManager/SmartBox type offsets, captures viewer eye origin per frame (pub+sought) to measure boom jitter vs acdream. Used to pin the indoor flicker to the camera's published/swept eye (retail settled ~tens of um vs acdream ~1.3mm).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-08 23:14:54 +02:00
Erik
fe87e9794a docs(render): FLAP settled by live-retail measurement — full retail port DECIDED (Option A) + exhaustive handoff
Attached cdb to the live 2013 retail client at the Holtburg doorway + read the decomp.
The indoor flap is a STRUCTURAL divergence, settled by measurement (not inference):

- Retail has ONE render path: DrawInside(viewer_cell) every frame. NO inside/outside
  branch (RenderNormalMode's outside branch is dead code; is_player_outside only gates
  sky/lighting). "Entering a building" is not a render event — only the camera sweep
  resolving a different viewer_cell. Same path before/after threshold -> no seam.
- Retail's eye JITTERS ~36um at rest yet membership is stable -> robustness is
  STRUCTURAL: many small per-building floods (~7/frame, ~2 cells each, via terrain BSP
  -> DrawPortal -> ConstructView(CBldPortal)), not one giant knife-edge flood.
- Our 3 divergences: (D1) invented inside/outside branch (GameWindow.cs:7498,
  clipRoot = viewerRoot ?? _outdoorNode :7396); (D2) synthetic _outdoorNode; (D3) one
  unified flood.

DECISION (user-approved): Option A — rip out branch + outdoor node, root always at the
real viewer_cell, one DrawInside, per-building rendering. Phased, conformance-tested,
visual-gated.

REFUTED by measurement (do not retry): bounded-propagation/churn (maxPop=1, 0/63k
reciprocals empty); byte-stable eye (retail's jitters ~36um — rest-snap cd974b2 failed +
regressed, reverted 9b1857a).

Lands the canonical exhaustive handoff for a FRESH session
(docs/research/2026-06-08-full-retail-render-port-OPTION-A-handoff.md), the CLAUDE.md
READ-THIS-FIRST banner, and reusable cdb apparatus. No project code changed; working tree
at the known-good baseline.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-08 16:19:34 +02:00
Erik
d6aa526dd3 diag(render/physics): flap root-caused to physics rest µm-jitter; refute prior diagnoses
Apparatus + handoff for the indoor flap. Confirmed (primary evidence): the flap is the
portal-flood clip being µm-sensitive at the threshold, driven by a ~1-8µm jitter in the
player RenderPosition (physics resting position not bit-stable; Lerp surfaces it). REFUTES
the 2026-06-07 see-through/EnvCell/outdoor-node diagnosis (ModelId GfxObj 0x01000A2B IS the
solid exterior) AND an enqueue-once attempt (retail propagates late slices via AddToCell;
the existing PropagatesNewSlicesToExit test caught it; reverted). Adds: Build determinism
test, A8CellAudit gfxobj dump, [pv-input] 6dp probe + [render-sig] outRoot/bshell fields.
No functional fix shipped. Next: higher-precision physics rest trace -> port retail
kill_velocity/contact rest-stability. Canonical: docs/research/2026-06-08-flap-rootcause-physics-rest-handoff.md

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-08 09:16:12 +02:00
Erik
1405dd8e90 feat(render): indoor render WORKS — terminating portal flood + every-cell seal + look-in FPS
Checkpoint of the unified retail-faithful indoor render. The two-week HANG/grey is fixed and the
interior seals (live-verified by the user). Commits the session render-rewrite foundation together
with the fixes that made it functional.

- HANG fix: PortalVisibilityBuilder.Build portal flood did not terminate (the faithful ProjectToClip
  near-side clip drifts per round, defeating the CellView dedup; the BFS had no bound after U.2a removed
  MaxReprocessPerCell). Fix = drift-tolerant snapped/canonical CellView.Add dedup (PortalView.cs) plus
  restored MaxReprocessPerCell=16 bounded re-enqueue (PortalVisibilityBuilder.cs). Re-enqueue is kept
  (load-bearing for late-slice propagation, Build_ViewGrowthAfterDoneCell_PropagatesNewSlicesToExit);
  only its count is capped. CellViewDedupTests added.
- Seal (DrawCells Task 2): RetailPViewRenderer.DrawEnvCellShells draws EVERY visible cell via
  IndoorDrawPlan.ShellPass (was gated on the ClipFrameAssembler slot filter, leaving slot-less cells grey).
- Look-in FPS: GameWindow exterior look-in candidates limited to the player landblock +-1 (was all ~81
  loaded LBs iterated every outdoor frame). No behaviour change (far cells were >48m, already culled).

Remaining dominant issue = the FLAP at transitions: viewer-cell metastability (render roots at the
camera-eye cell, which oscillates outdoor-indoor as the 3rd-person boom drifts across the doorway,
confirmed in render-sig). SEPARATE fix, NOT the DrawCells port. Full handoff + flap fix plan + tracked
follow-ups (#78 terrain, look-in-from-inside, look-in FPS, L-spotlight):
docs/research/2026-06-07-indoor-render-session-handoff.md.

Baselines: build 0 err; App.Tests 210/210; Core.Tests 1331 pass / 4 fail (pre-existing) / 1 skip.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-07 10:14:43 +02:00
Erik
9601ef39c3 docs: indoor flicker/void root cause (decomp + live cdb) + 3-part fix plan handoff
Diagnosis session: the indoor bluish void + grey/texture flicker is visibility metastability at cell boundaries, not a missing flood (R1's per-cell DrawInside is built; the cellar seals). Confirmed by named-retail decomp AND a live cdb capture of retail (viewer_cell rock-stable: clean monotonic transitions, zero oscillation across 4916 samples). Retail stays stable via boom stability + a 0.2mm viewer-cell dead-zone + clip-space portal clipping; acdream diverges on all three. Handoff documents the root cause, the cdb evidence, and the prioritized 3-part retail-faithful fix (boom stability -> dead-zone -> w-space clip) with decomp anchors + a planning/implementation kickoff prompt. Adds the reusable retail viewer-cell cdb capture script and the superseding CLAUDE.md banner.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-05 15:31:17 +02:00
Erik
bc1be26907 test(p2): faithful cellar-lip wedge reproduction + investigation apparatus (no fix yet)
P2 / M1.5 "blocked at the last step" cellar-lip wedge. This session built a faithful
deterministic reproduction and peeled the cause through six evidence-disproven framings
to one bounded question. NO fix landed — the last layers were each disproven by evidence,
and guessing at the load-bearing collision code is the saga's failure mode.

Apparatus:
- CellarLipWedgeTests.cs + Fixtures/cellar-lip/ (3 real cell dumps + wedge-records.jsonl =
  29 captured ACDREAM_CAPTURE_RESOLVE wedge calls). Replays the exact calls + body-before
  through the lip-cell engine: all 29 reproduce at 0% advance in <200 ms. Tests are
  documents-the-bug / diagnostics (GREEN while the wedge exists).
- TEMP probes ([path5-wall]/[fw-enter]/[find-walkable] in BSPQuery; [neg-poly]/[stepsphereup]/
  [stepdown-decide]/CheckOtherCells cn/sn/negHit in TransitionTypes), gated on
  ACDREAM_PROBE_INDOOR_BSP, marked STRIP. TransitionTypes neg-poly shortcut has a reverted-fix
  comment (slide attempt didn't clear the wedge).
- tools/cdb/retail-*-trace.cdb (retail cdb traces).

Findings (handoff: docs/research/2026-06-04-p2-cellar-lip-flatfloor-cp-handoff.md, see the
"NEXT-SESSION KICKOFF" at top):
- Flat-floor contact plane is retail-faithful (v1 trace, full-file correlation). NOT the bug.
- PosHitsSphere cull sign is retail-faithful (cdb -z verified; the Binary Ninja `test ah,N; jp`
  parity-jump reads inverted — caught + reverted a wrong fix from that mis-read).
- Sphere radius correct (0.48 player / 0.30 camera probe).
- Retail connector cell 0xA9B40175 never blocks (CEnvCell::find_collisions trace: 0 Collided/Slid).
- PINNED: during the step-up's step-down, BSPQuery.FindWalkableInternal is never called for cell
  0171, so the cottage floor (poly 0x0023, Z=94) is never tested as walkable -> no contact plane
  -> step-up fails -> StepUpSlide=Collided -> wedge.

Next: trace FindEnvCollisions -> FindCollisions path dispatch for 0171 during StepDown=true (why
StepSphereDown/find_walkable is skipped), port retail, validate via CellarLipWedgeTests, regress
DoorBugTrajectoryReplayTests + visual gate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-05 08:30:36 +02:00
Erik
5ad897b0a5 docs(p2): cellar corner-wedge pinned to step-up-onto-floor (retail cdb) + trace apparatus
Live retail cdb trace (tools/cdb/cellar-corner-escape.cdb) of the Holtburg
cottage cellar-top corner decodes the ground truth: retail escapes by
step_sphere_up->step_up (196x vs 38 near-misses), transitioning the contact
plane from the ramp (N.z=0.78) onto the flat cottage floor (N.z=1.0, 76
landings). acdream slides at the lip and never makes that ramp->floor
transition -> the intermittent cellar wedge.

So the remaining cellar bug is the #98-core step-up-onto-cottage-floor
(DoStepDown / step_sphere_down / find_walkable), which the shipped B1 (abbd761)
+ slide_sphere (0935a31) fixes got close to but didn't finish. Door still
blocks; generic step-up climbs; cellar went always-stuck -> works-mostly.

Next (handoff doc): instrument acdream's OWN corner path (does step_up fire at
the lip and fail to land on the cottage floor?) before porting the lip-climb --
no guessing (#98 saga rule).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-04 11:27:44 +02:00
Erik
9017107960 fix(p1): membership already matches retail — the 0/11 was a cdb capture artifact
The P1 "doorway membership lags retail" premise is FALSIFIED. acdream's swept
ResolveWithTransition already matches retail's true per-frame curr_cell: the
production gate ProductionPath_IndoorCrossings reads 9/9 on the indoor 0170<->0171
crossings with NO code change, once fed an aligned retail golden.

Root cause of the false 0/11: CPhysicsObj::SetPositionInternal calls change_cell
(acclient_2013_pseudo_c.txt:283456) BEFORE set_frame writes m_position (:283458),
so the original golden (find-cell-list-capture.cdb, read at the change_cell BP)
paired each frame's NEW cell with the PREVIOUS frame's position — a one-frame skew.
Verified 3 ways: the decomp ordering; golden_picked[i] == geom(golden_position[i+1])
for all 22 rows; acdream's static pick == golden_picked[i-1] for all rows. Both
retail and acdream pick with center-only point_in_cell on global_sphere[0] (no XY
lead; cache_global_sphere @ pc:274196). curr_cell commits via validate_transition
(@ pc:272608, curr_cell = check_cell) = the find_cell_list pick, structurally
identical to acdream's RunCheckOtherCellsAndAdvance -> FindCellSet -> SetCheckPos.
There was nothing to port; a swept advance would make membership LEAD by a frame.

- tools/cdb/find-cell-list-capture-aligned.cdb: re-capture reads the committed
  position from the set_frame that follows change_cell (cell+position same instant).
- Fixtures/find-cell-list-threshold.log: replaced with the aligned capture.
- ThresholdPortalCrossingReplayTests / FindCellListConformanceTests: rewritten from
  documents-the-bug to assert retail truth (per-segment / per-indoor-pick equality).
- handoff + notes + README + memory: banners correcting the disproven premise.

Still open (NOT indoor membership, which is DONE): outdoor->indoor 0031<->0170 entry
conformance (needs landcell + building stab in the gate cache); master-plan cleanups
(delete CheckBuildingTransit, unify find_env_collisions, demote ResolveCellId) refactor
working retail-faithful code -> need explicit user approval.

Conformance 60 pass / 1 skip / 0 fail; full Core 1309 pass / 5 fail (pre-existing
2 BSPStepUp + 3 door-collision = P2) / 1 skip.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-03 18:54:27 +02:00
Erik
bb4dead0ae test(p0): retail-trace golden captured — membership criterion divergence pinned (P0 GATE MET)
P0 Task 6 complete. Captured live retail membership at the 0031<->0170<->0171
doorway via cdb on CPhysicsObj::change_cell (symbol-driven; offsets verified by
discover-types.cdb; PDB MATCH). 22 transitions, clean monotonic sequence, NO
ping-pong (retail is correct-by-construction). Golden:
Conformance/Fixtures/find-cell-list-threshold.log.

ROOT-CAUSE FINDING (the central P1 work): retail transitions membership at the
PORTAL CROSSING (CEnvCell::find_transit_cells @ 0x52c820 pc:309968 — sphere crosses
the doorway polygon plane), while acdream's FindCellList re-picks by POINT-IN-CELL
containment at the foot. Retail commits room 0171 while the foot is STILL inside
vestibule 0170's BSP (in_0171=0); acdream lags. ALL 22 transitions diverge for this
one criterion mismatch — not a per-cell hysteresis or a building-entry-only split.
This is master-plan §0 'hysteresis gap' confirmed against the real client.

FindCellList_DoorwayThreshold_DivergesFromRetail_PendingP1 (documents-the-bug, GREEN)
+ ThresholdDivergenceDiagnosticTests (per-transition containment print) pin it; both
flip when P1 ports the directed portal crossing. Conformance 59 pass / 1 skip / 0 fail;
full Core 1308 pass / 5 fail (baseline) / 1 skip — no new failures.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-03 15:04:51 +02:00
Erik
b35e491f12 test(p0): retail find_cell_list trace parser + cdb value-capture tooling
P0 Task 5. RetailTrace parses the [fcl] golden format (seed/pos/picked,
RetailCellPick); 4 TDD tests green. find-cell-list-capture.cdb targets
CPhysicsObj::change_cell (commit-on-diff) to capture retail's accepted
membership sequence at the doorway; README is the operator runbook
(dt offset verification + decode_retail_hex float decode). The live run
is P0's one user-gated step (Task 6 mines existing traces first).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-03 14:26:24 +02:00
Erik
8941d1e6e5 research(render): Phase U.4c — refute eye-crosses-plane; correct stale H2 note
A8CellAudit portals now dumps each cell's local AABB. Real flap cells: 0171 local
y in [-7.65, 1.15], 0170 in [-8.61, -7.65]; the 0171->0170 portal plane is at
y=-7.65 (0171's MIN boundary), no overlap. So an eye genuinely inside 0171 always
has side-test D<=0 -> always traverses 0171->0170; the side test cannot cull 0170
while the eye is in 0171. The flap therefore requires the eye OUTSIDE 0171 while
root is still 0171 (cache/grace/3rd-person camera) -> a camera-cell-resolution
issue, not the side test (H2, disproven) and not the per-frame PVS set (H1, in
doubt). Mechanism still unconfirmed -> needs a live eye-pos capture. Stale H2
conclusion in the characterization note corrected with a banner.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-05-31 10:36:30 +02:00
Erik
b5f2bf2b8f research(render): Phase U.4c — DISPROVE the side-test fix (PortalSide port is a no-op)
InitCell decode (PortalFlags.PortalSide=0x2) + a swept-pose A8CellAudit comparison
(O=centroid, A=winding-corrected PortalSide, B=opposite) over the real flap cells.
A is IDENTICAL to O at every pose/every portal — the (Flags&2)==0 boolean convention
makes the dat PortalSide sense equal to our centroid sense, so swapping is a no-op
and cannot fix the flap. B culls true-interior poses (wrong polarity). Conclusion:
the flap is NOT the side-test sense — it's the 3rd-person camera eye crossing an
interior portal plane while FindCameraCell still roots in the cell; ANY plane-side
test culls there. No production code changed (no no-op shipped).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-05-31 10:32:52 +02:00
Erik
13d58cae6a research(render): Phase U.4c-1 — characterize the flap on real dat evidence
A8CellAudit portals dump extended to print per-portal plane + centroid-derived
InsideSide vs the dat's authored PortalSide. Real Holtburg cottage cells show:
the flap is a DIRECT 0xA9B40171->0xA9B40170 portal side-test flip (0170 is a
direct neighbour, not multi-hop), and our centroid-derived InsideSide is
anti-correlated with the dat PortalSide that retail InitCell (432896) uses.
Evidence selects H2 (port the side test) over H1 (PVS set-grounding). Camera
cell 0171 seenOutside=Y. Full reading + fix direction + open sign question in
the note.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-05-31 10:13:16 +02:00
Erik
9417d3c4ce fix(render): Phase A8.F — empty OutsideView draws no outdoor terrain (cellar flood fix)
First-fix from the visual-gate-failure handoff: an empty OutsideView means
"no outdoors visible from here," not "all outdoors." When inside a building
with an empty clipped mask, Step 4 now draws NO terrain/scenery instead of
disabling the stencil and flooding ungated terrain over the cell interior
(the Step-3 walls already occupy the framebuffer). Visual-confirmed: Holtburg
cottage cellar walls are solid now, no terrain bleed-through.

Also adds portal diagnostics that root-caused so-called "Bug B":
- PortalVisibilityBuilder: per-camera-cell CAMPORTAL census (polyLen +
  side-test result) emitted BEFORE the BFS guards, so an empty OUTSIDEVIEW
  can be traced to the exact gate.
- A8CellAudit `portals`: replicate BuildLoadedCell's polygon-vertex
  resolution so PortalPolygons[i] validity is checkable offline.

Finding: the builder is largely CORRECT — it produces narrowed clipped
OutsideView regions for most cells (0172/0173/0162/015E/0165/016F). The
empty cases are mostly legitimate (windowless cellar can't see out; the
3rd-person camera eye on the outdoor side of a front-door plane culls that
exit). The handoff's Finding 2 ("under-produces, never narrows") is
substantially not real. Remaining wall-missing regressions in OTHER
buildings live in the cross-building Step-5 enforcement, escalated separately.

All gated behind ACDREAM_A8_INDOOR_BRANCH=1; default play unaffected.
App tests 108/108.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-29 15:17:21 +02:00
Erik
5dc4140c11 feat(render): Phase A8 — indoor visibility + streaming fixes batch
Lands the working A8 indoor-rendering and streaming fixes accumulated this
session. User has verified these visually to some degree (e.g. lifestone /
translucent meshes confirmed fine under the FrontFace flip; bridge / wall /
collision regressions confirmed fixed after travel); not every path has been
exhaustively gated. The cellar-flap defect remains OPEN and will be solved
the retail-faithful way via a dedicated brainstorm (see handoff docs).

Rendering core (reviewed, high confidence):
- EnvCellRenderer SSBO stride fix: upload packed Matrix4x4[] (64B) instead of
  the 80B CPU InstanceData struct the shader never expected — fixes the
  transform/texture "explosion" for any draw with >1 instance (cells that
  dedupe to a shared cellGeomId). Real root cause.
- WB-style global FrontFace(CW) + per-batch CullMode carried through the MDI
  layout (GroupKey + BuildIndirectArrays + DrawIndirectRange split into
  same-cull runs with absolute uDrawIDOffset per run).
- EntitySet partitioning (IndoorPass / OutdoorScenery / LiveDynamic) +
  WorldEntity.BuildingShellAnchorCellId so building shells scope to their
  dat-derived building cell instead of rendering everywhere.
- RenderOutsideInAcdream (look into buildings from outside) +
  CollectVisiblePortalBuildings frustum cull of portal bounds.
- Sky-when-inside-building + per-cell audit probe + GL-state probe.

Streaming / perf (test-covered; not independently code-reviewed this session):
- Near/far priority queues so near work wins over far; PromoteToNear carries
  full landblock + mesh data; LandblockEntriesWithoutAnimatedIndex avoids
  rebuilding the animated-lookup dict in the hot draw path. Fixes the
  bridge-not-appearing / missing-walls / broken-collision-after-travel
  regressions and improves post-transition FPS.

Tooling + docs:
- tools/A8CellAudit: offline dat cell/portal/building dumper (portals +
  buildings modes) — reproduces the cellar-flap investigation with no launch.
- docs/research cellar-flap root-cause + option-2 handoff (the didInsideStencil
  double-duty finding + the WB-recursive design decision + brainstorm prompt),
  entity-taxonomy, replan, issue-78 visibility investigation.

Diagnostics retained on purpose: ACDREAM_A8_DIAG_* gates, portal_stencil.vert
provisional pos.w clamp, and the probe families are kept (env-var gated, zero
cost when off) because the pending option-2 cellar-flap brainstorm needs them.
Strip in the option-2 ship commit.

Indoor branch stays behind ACDREAM_A8_INDOOR_BRANCH=1 (default off = pre-A8
visual). Build green; App tests + Core (streaming/dispatcher/loader) tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-29 10:14:50 +02:00
Erik
82781c272b test(phys): A6.P5 fixture — 3 ticks from live door-stuck capture
over-penetration-capture.jsonl is 3 records extracted from
door-stuck-capture.jsonl: the cell-crossing over-penetration tick
(0xA9B4013F -> 0xA9B40150, sphere committed 0.27m INTO slab), a
stuck-position hit=yes tick, and a stuck-position hit=no tick. Drives
the A6.P5 replay tests that prove the cellSet gate removal closes both
the over-penetration and the intermittent-visibility bugs.

extract-records.ps1 is a one-shot extractor; reusable if we capture more.
Source captures (door-stuck-*.jsonl, door-stuck-*.launch.log) gitignored.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-25 12:43:51 +02:00
Erik
fd1548af61 feat(phys): A6.P4 door — cdb-driven NegPolyHit dispatch (incomplete; needs BSP near-miss recording)
cdb attached to retail at a Holtburg cottage door while user walked the
inside-out off-center scenario. Three trace iterations identified that
retail's collision-recording happens via SPHEREPATH::set_neg_poly_hit
(fires hundreds of times during inside-out walk), NOT via the more
obvious-named COLLISIONINFO setters (which fire 0 times). Apparatus
scripts at tools/cdb/door-inside-out-v[1-3].cdb + symbol-probe.cdb.

Our codebase has NegPolyHitDispatch defined but never called. The
downstream TransitionalInsert NegPolyHit handler was a stub. Two-part
fix landed:

1. BSPQuery.FindCollisions Path 5 (Contact branch) restructured —
   distinguishes full hit (hit0 == true → StepSphereUp) from near-miss
   (hit0 == false but hitPoly0 != null → NegPolyHitDispatch). Mirrors
   retail BSPTREE::find_collisions at
   acclient_2013_pseudo_c.txt:0053a630-0053a6fb.

2. Transition.TransitionalInsert NegPolyHit handler — dispatches to
   step_up + step_up_slide (NegStepUp=true) or records collision
   normal + returns Collided (NegStepUp=false). Mirrors retail
   CTransition::transitional_insert at
   acclient_2013_pseudo_c.txt:0050b7af-0050b7e6.

Tests: all 11 fix-relevant + regression tests pass including issue #98.

VISUAL VERIFICATION (user-driven inside-out off-center): still squeezes
through. Diagnostic [neg-poly-dispatch] probe shows ZERO hits in
production. The Path 5 restructuring doesn't surface NegPolyHit
because our SphereIntersectsPolyInternal only sets hitPoly on FULL
hits — retail's sphere_intersects_poly sets var_5c (closest polygon)
even on near-misses via BSP-traversal side effect.

Remaining fix (next session): add near-miss polygon recording to
SphereIntersectsPolyInternal. Once it sets hitPoly on near-miss BSP
traversal, the Path 5 NegPolyHit dispatch (this commit) will fire
and the TransitionalInsert handler (this commit) will block.

Full handoff with cdb trace table + next-step plan:
docs/research/2026-05-25-door-bug-cdb-retail-trace-findings.md

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-25 10:36:22 +02:00
Erik
6f666c14da tools(cdb): A6.P3 #98 Step 4 — retail find_walkable capture script
Step 4 of the apparatus plan. Adds the cdb script + runner that pairs
with Issue98CellarUpReplayTests to compare retail's walkable-query
behavior against acdream's during the Holtburg cottage cellar ascent.

Breakpoints (all symbols verified against refs/acclient.pdb via grep
docs/research/named-retail/symbols.json):
- BPA: BSPLEAF::find_walkable          — leaf-level walkable query
- BPB: CPolygon::walkable_hits_sphere  — per-polygon overlap test
- BPC: CPolygon::find_crossed_edge     — per-polygon edge containment
- BPD: CTransition::check_other_cells  — outer dispatcher
- BPE: COLLISIONINFO::set_contact_plane — GOLD signal: retail accepted
                                          this plane
- BPF: CPolygon::adjust_sphere_to_plane — per-polygon projection

Output format: 32-bit hex bits for all floats via dwo() + %08X (cdb's
%f handling is broken for dwo reads; see a6-probe.cdb v3→v4 history).
Decoder: tools/cdb/decode_retail_hex.py already handles _h=0x... fields.

Auto-detach threshold: 50000 hits across BPA/B/C/D/F. BPE is unbounded
(contact plane writes are rare, ~18 per ascent per slice 5 capture).

Runner: tools/cdb/issue98-runner.ps1
  .\tools\cdb\issue98-runner.ps1 -ScenarioTag "cellar_up_attempt_1"

Prereqs (per CLAUDE.md retail debugger toolchain section):
- Retail acclient.exe v11.4186 running and in-world
- ACE running on 127.0.0.1:9000
- Character at the BOTTOM of a Holtburg cottage cellar stair
- cdb.exe present at the Windows Kits 10 path

Output:
  docs\research\2026-05-23-a6-captures\<ScenarioTag>\retail.log

Reading the log:
- [BPE] lines tell you which plane retail accepted (the answer we need).
- Cross-reference [BPE]'s normal/d against the cell fixtures in
  tests/AcDream.Core.Tests/Fixtures/issue98/*.json to identify which
  cell + polyId retail picked.
- The divergence between retail's accepted polygon and our replay test's
  "no walkable accepted" result IS the fix target.

The capture itself is a user action (cdb requires a live retail
process); this commit only ships the protocol. Step 5 (comparison doc)
follows after the capture lands.
2026-05-23 15:29:02 +02:00
Erik
194ed3ef21 feat(cdb): A6.P1 — decode_retail_hex.py hex→float decoder
Python tool that decodes the retail.log hex-bits float fields produced
by a6-probe.cdb v4 into IEEE 754 single-precision values. Required
because cdb's .printf %f doesn't reliably format floats from dwo()
reads — v4 works around this by emitting 32-bit hex, this script
reinterprets via struct.unpack('<f', struct.pack('<I', value)).

Verified against scen1 retail.log:
  BP6 threshold_h=0x3F2A0751 → threshold=0.6642 (= FloorZ exactly)
  BP5 hit#1 Nz_h=0x3F800000 → Nz=1.0 (ground normal)
  9,517 float fields decoded across 9,331 lines.

Output written next to input as .decoded.log. Format matches
acdream-side [push-back] probe (4-decimal floats), so A6.P2
analysis can compare line-for-line.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 20:03:03 +02:00
Erik
2d841cb615 fix(cdb): A6.P1 — a6-probe.cdb v4 hex-bits floats
v3 with @@c++(*(float*)..) STILL produced 0.000000 across the board.
Conclusion: cdb's .printf %f is unreliable for our use case — possibly
doesn't handle the float-to-double promotion in varargs the way C
printf does, or has a deeper limitation we don't have time to debug.

Pivoting to: print all floats as 32-bit hex bits via %08X, reinterpret
in the Python analysis pipeline via struct.unpack('<f', bytes.fromhex(...))
to recover IEEE 754 single-precision values.

This bypasses cdb's float formatting entirely. Integer reads (which
work — substeps, insertType, collide flag, isWater) stay as %d.

The smoking gun: BP6's check_walkable threshold should be 0.0871556997
(cos 85°) per the decomp call site at acclient_2013_pseudo_c.txt:273202.
v4's BP6 should output threshold_h=0x3DB283D7. If it does, the
infrastructure is sound and we can proceed to all 9 scenarios.

v3 capture preserved as retail-v3-cpp-zero-floats.log audit trail.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 19:55:48 +02:00
Erik
1b6d49ea57 fix(cdb): A6.P1 — a6-probe.cdb v3 with C++ float reads
v2 dry-run produced correct hit counts but all %f field values
printed as 0.000000 — including BP6 threshold which the decomp says
must be 0.0871556997f (cos 85°). Root cause: cdb's MASM evaluator
returns dwo(addr) as a 32-bit integer; .printf %f expects a 64-bit
double; passing the integer to %f produces formatted-zero garbage.

Fix: switch all float-reading expressions to @@c++(*(float*)addr).
The C++ evaluator dereferences memory as a float pointer, returning
a proper float that .printf %f formats correctly. Integer reads (%d)
still use MASM dwo() — that works.

For double-indirect (pointer args), the form is
  @@c++(*(float*)(*(unsigned int*)(@esp+N)+offset))
which reads the pointer at [esp+N], adds the offset, and treats the
result as a float pointer.

v2 capture preserved as retail-v2-zero-floats.log audit trail.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 19:50:11 +02:00
Erik
7b9b26f647 fix(cdb): A6.P1 — a6-probe.cdb v2 with PDB-verified offsets
Replaces v1's broken-offset BP actions with PDB-authoritative field
reads. All offsets extracted from `dt acclient!TYPENAME` against the
loaded PDB (output preserved at tools/cdb/a6-types-dump.txt).

Key offsets:
  Plane.N at +0x00, .d at +0x0c
  CSphere.center at +0x00, .radius at +0x0c
  CPolygon.plane at +0x20
  SPHEREPATH.collide +0x104, .walkable_allowance +0x1b8, .walk_interp +0x1bc
  CTransition.sphere_path +0x020 (so e.g. CTransition+0x174 = insert_type)

Per-BP arg-read fixes (all use __thiscall: ecx=this, args at [esp+N]):
  BP1: substeps from [esp+4], insertType from this+0x174
  BP2: walkable_allowance from this+0x1d8, normal.z from *(arg+8)
  BP3: normal.x/y/z from *arg
  BP4: collide+insertType via *(arg2+0x124/0x174), walkAllow from arg3
  BP5 (the over-correction suspect): full plane + sphere + walk_interp +
       movement vector. 12 fields, all double-indirect for pointer args.
  BP6 SYMBOL FIXED: CTransition::check_walkable (v1 had
       validate_walkable which doesn't exist; check_walkable confirmed
       in symbols.json and at decomp line 272811).
  BP7: plane + isWater from *arg.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 19:43:50 +02:00
Erik
d0c8c54d96 fix(cdb): A6.P1 — v1 dry-run lessons + v2 prep tooling
Dry-run of scenario 1 (retail-v1-broken-offsets.log preserved as
audit trail) surfaced three issues with the v1 cdb script:

1. STACK-ARG OFFSETS WRONG: BP actions used arbitrary registers
   (@edx, @edi) to read function args, but __thiscall puts non-this
   args on the stack ([esp+N] after the return address). All 12 BP5
   "adjust_sphere" hits printed Nx=0.0 Ny=0.0 ... — fields not read.
   Fixed by writing a type dumper (a6-types-dump.cdb + runner) that
   uses cdb's `dt` command against the loaded PDB to get authoritative
   struct offsets. v2 probe script (to be written next) will use
   double-indirect reads (dwo(poi(@esp+N)+offset)) with correct
   offsets from the dump.

2. TEE-OBJECT UTF-16 ENCODING: PowerShell's default Tee-Object writes
   UTF-16 LE with BOM, making logs unparseable by grep without
   conversion. Runner now uses Out-File -Encoding ASCII. Sacrifices
   live console echo; use `Get-Content -Tail 50 -Wait` in a separate
   shell if live monitoring is needed.

3. BP6 SYMBOL NOT FOUND: `acclient!CTransition::validate_walkable`
   doesn't exist in the PDB. Decomp at line 272811 has
   `CTransition::check_walkable` — likely the actual name. To be
   verified + fixed in v2.

The BP hit-count distribution from v1 is still meaningful diagnostic
data (14,318 transitional_insert + 16,558 find_collisions + 40
set_contact_plane + 12 adjust_sphere + 1 step_up + 1 set_collide in
a 2-second walk through the inn doorway). Preserved as a baseline
sanity-check the v2 distribution can be diffed against.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 19:38:31 +02:00
Erik
df315a9654 docs(cdb): A6.P1 — README for the cdb probe + runner
Documents prerequisites (PDB match, cdb install, retail+ACE
running), per-scenario invocation, the 9-scenario tag table, and
the parallel acdream capture command. Includes the CLAUDE.md cdb
watchouts inline so probe operators don't have to chase them.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 18:44:42 +02:00
Erik
1c640ebefa feat(cdb): A6.P1 — PowerShell runner for a6-probe.cdb
Wrapper that attaches cdb to a live retail acclient.exe with a
scenario-tagged log path. Per-scenario invocation:
  .\tools\cdb\a6-probe-runner.ps1 -ScenarioTag "scen1_inn_doorway"
Output: docs\research\2026-05-21-a6-captures\<ScenarioTag>\retail.log

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 18:43:34 +02:00
Erik
7bb799b02c feat(cdb): A6.P1 — 7-BP probe script for retail BSP collision response
Sets non-blocking breakpoints on transitional_insert, step_up,
set_collide, find_collisions, adjust_sphere_to_plane,
validate_walkable, set_contact_plane. Each BP increments a counter
and emits a single printf line. Auto-detach via qd at 50K total
hits to avoid retail lag (CLAUDE.md gotcha — high BP rates trigger
ACE timeout).

Also adds !tools/cdb/*.cdb negation to .gitignore so committed
reference scripts in tools/cdb/ are tracked despite the blanket
*.cdb scratch-file rule.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-21 18:41:29 +02:00
Erik
5937ebe1c5 docs(issues): #37 — Investigation 2 narrows bug to SubPalette coverage gaps
Five parallel agents + dat probes ruled out:
- byte-level decode primitive (matches ACViewer)
- polygon emission (no ST_DOUBLE / Surface.Type & 6 issues)
- per-PART texture-override scoping (correctly per-MeshRef'd)
- SubPalette indexing convention (full-size 2048 palettes, *8 wire un-pack
  is single-applied)

Smoking gun: for +Acdream the server sends 10 SubPaletteSwap ranges that
overlay palette indices [0..320), [576..1024), [1392..1488), [1728..1920).
The complement — [320..576), [1024..1392), [1488..1728), [1920..2048) —
is NOT overlaid. Base palette 0x0400007E at those indices has
red/skin tones. Coat texture UVs sampling those non-overlaid indices
render as visible "skin stub at top of coat".

Either ACE sends incomplete SubPaletteSwap data, or retail does extra
client-side ClothingTable computation we (and ACE) don't.

Diagnostic harness now lives at tools/InspectCoatTex/Program.cs;
GameWindow's DUMP_CLOTHING also probes runtime SubPalette dat sizes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 14:45:50 +02:00
Erik
23004a4791 diag(motion): instrumentation for remote walk↔run leg-cycle bug (Commit A)
Adds five diagnostics, no behavior changes. All gated on existing
ACDREAM_REMOTE_VEL_DIAG=1 env var. Plan at
~/.claude/plans/yes-make-a-plan-parsed-axolotl.md.

Five hypotheses surviving from the four-agent investigation
(docs/research/2026-05-03-remote-anim-cycle/investigation-prompt.md):

  H1  SEQSTATE silently swallowed by OMEGA_DIAG sharing throttle clock
  H2  ApplyServerControlledVelocityCycle races UM-driven SetCycle per UP
  H3  SetCycle fast-path returns without updating _currNode
  H4  GetLink/GetCycle null → defensive fallback lands on stale head
  H5  PartTemplate.Count diverges from anim PartFrames.Count → silent
       identity-quat freeze

Diagnostics added (all log lines are grep-prefixed):

  D1  Split LastSeqStateLogTime field for SEQSTATE — own throttle.
      Foundational: every other diag depends on SEQSTATE telling truth.
  D2  [UPCYCLE] inside ApplyServerControlledVelocityCycle, +
      [UPCYCLE_SRC] at the call site (wire vs synth velocity).
  D3  [SCFAST] in fast-path return, [SCFULL] at full-rebuild end.
  D4  [SCNULLFALLBACK] in the null-data defensive fallback.
  D5  [PARTSDIAG] with pt.Count / seqFrames.Count / setup.Parts.Count /
       anim.PartFrames[0].Frames.Count + sum-of-components hash.

Repro recipe:

  $env:ACDREAM_INTERP_MANAGER  = "1"
  $env:ACDREAM_REMOTE_VEL_DIAG = "1"
  dotnet run … 2>&1 | Tee-Object tools/diag-logs/walkrun-<ts>.log

Then watch a retail-driven character through acdream and exercise:
idle → W run → release → shift+W walk → release → demote → promote →
run+turn (this last one is the H1 trap).

Decision matrix in the plan file maps each [TAG] signature to a
specific Commit B fix.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-03 20:38:47 +02:00
Erik
c06b6c51e1 fix(motion): full queue reset on locomotion-cycle direct transitions
When AnimationSequencer.SetCycle transitions between forward-locomotion
cycles (Walk↔Run, Walk↔WalkBackward, etc.) — i.e. when both old and new
motion's low byte is in {0x05 WalkForward, 0x06 WalkBackward, 0x07
RunForward} — do a full queue drain + _currNode/_firstCyclic reset
(matching the existing skipTransitionLink branch) instead of just
ClearCyclicTail. Without this, _currNode is left pointing into the
previous cycle's non-cyclic head (link frames from the prior Ready→walk
transition), and the visible legs continue playing those head frames
before reaching the new run cycle.

Investigation findings (cdb live trace of retail at
tools/cdb-scripts/walk_run_motion_trace.log):

  Retail's actual approach is "additive add_to_queue with no truncate" —
  MotionTableManager handles the natural progression via per-tick
  CheckForCompletedMotions / remove_redundant_links cleanup. Acdream
  doesn't have that machinery, so this fix is the closest viable
  emulation: force the queue back to a clean state and rebuild from
  scratch on the locomotion-cycle transition.

User-reported symptom this addresses (walk→run direct transition,
release shift while W held): visible animation cycle did not switch
until next motion event. Verified via FWD_WIRE + SETCYCLE diags that
both ACE and our SetCycle are firing correctly on the transition.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-03 17:00:55 +02:00
Erik
b1d8e122ed research(motion): cdb live trace of retail walk-to-run transition
Live cdb trace of retail acclient.exe (v11.4186, PDB-matched) capturing
the exact function call sequence for a direct walk-to-run motion
transition where the user holds shift+W (walk) then releases SHIFT
while still holding W (transition to run).

Trace bps on:
- CPhysicsObj::DoInterpretedMotion (0x0050EA70)
- CPartArray::DoInterpretedMotion  (0x00518750)
- MotionTableManager::PerformMovement (0x0051C0B0)
- MotionTableManager::add_to_queue (0x0051BFE0)
- MotionTableManager::truncate_animation_list (0x0051BCA0)
- CMotionTable::DoObjectMotion (0x00523E90)
- CMotionTable::StopObjectMotion (0x00523EC0)

Captured trace at tools/cdb-scripts/walk_run_motion_trace.log shows
the precise walk-to-run sequence:

  [79] CPhysicsObj::DoInterpretedMotion: motion=45000005   walk start
  [82] CMotionTable::DoObjectMotion: motion=45000005
  [83] MotionTableManager::add_to_queue: arg1=45000005 arg2=00000001

  [89] CPhysicsObj::DoInterpretedMotion: motion=44000007   run start
  [92] CMotionTable::DoObjectMotion: motion=44000007
  [93] MotionTableManager::add_to_queue: arg1=44000007 arg2=00000001

  [104] CMotionTable::StopObjectMotion: motion=44000007    run end

Critical structural finding for #L.4-walk-run:

  Retail does NOT call truncate_animation_list during the walk→run
  transition. truncate_animation_list never fires in the entire 200-hit
  trace. Retail also does NOT call StopObjectMotion(WalkForward) before
  add_to_queue(RunForward). Retail just appends the new motion to the
  queue and lets MotionTableManager (and its CheckForCompletedMotions /
  remove_redundant_links per-tick cleanup, not yet traced) handle the
  natural progression.

  acdream's AnimationSequencer.SetCycle aggressively calls
  ClearCyclicTail() at line 430 BEFORE enqueuing the new cycle, which
  destroys the in-flight walk cycle's frames. The new run cycle is
  enqueued but _currNode is left in a state that doesn't smoothly
  continue — visible to the user as "it just blips forward walking,
  AS SOON as press another key like turning, its starts running"
  (the next motion event re-fires SetCycle which finally aligns state).

  Fix is a structural refactor of SetCycle to mirror retail's
  "additive queue with auto-cleanup" semantics. Out of scope for this
  research commit; filed as #L.4 in the next ISSUES.md entry.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-03 16:54:34 +02:00
Erik
235de3322a feat(physics): #32 L.5 30Hz physics tick + retail debugger toolchain (#35) + Phase 3 retail-faithful kill_velocity
Three intertwined changes from a single investigation session driven by
attaching cdb to a live retail acclient.exe (v11.4186, Sept 2013 EoR
build) and tracing what retail actually DOES on the steep-roof wedge
scenario the user reported in acdream.

═══════════════════════════════════════════════════════════
1. L.5 — physics-tick MinQuantum gate (PlayerMovementController)
═══════════════════════════════════════════════════════════

Retail's CPhysicsObj::update_object subdivides per-frame dt into 1/30 s
sized integration steps and SKIPS entirely when accumulated dt is below
MinQuantum. Live trace evidence:

  update_object        = 40,960 calls
  UpdatePhysicsInternal = 25,087 calls   (61%)

i.e., 39% of update_object calls return early via the MinQuantum gate.
Retail's effective physics tick rate is 30Hz even at 60+ Hz render.

acdream's PlayerMovementController bypassed the existing PhysicsBody.
update_object and called UpdatePhysicsInternal(dt) directly each render
frame, which compressed bounce-energy / gravity-tangent accumulation
into half the time and amplified our steep-roof wedge dynamics.

Fix: add `_physicsAccum` accumulator. Integrate only when accumulated
dt ≥ MinQuantum (clamped to MaxQuantum to bound stale-frame jumps).
HugeQuantum drops accumulated time to discard truly stale frames
(debugger break, GC pause). Render still runs at full rate; only the
physics step is gated.

═══════════════════════════════════════════════════════════
2. Phase 3 reset retail-faithful kill_velocity (TransitionTypes)
═══════════════════════════════════════════════════════════

Retail's reset path (acclient_2013_pseudo_c.txt:273231-273239) gates
kill_velocity on `last_known_contact_plane_valid`:

  if (last_known_valid == 0) {
      set_collision_normal(step_up_normal); return COLLIDED;
  }
  kill_velocity(this);
  last_known_valid = 0;
  return COLLIDED;

Earlier in this session I deviated to "unconditional kill_velocity" as
a hypothesis-driven wedge fix. The live trace then showed the
deviation CAUSED a different wedge by zeroing V every frame, leaving
the body with no tangent momentum to escape (V = (0,0,0) for 169
consecutive frames while position pre/resolved frozen). The retail-
faithful gate is restored.

Note: the gate rarely fires in normal airborne play because our L.2.4
proximity guard clears last_known_valid soon after the body separates
from its remembered floor. Live retail trace also showed
kill_velocity = 0 hits over an entire play session — same behavior. So
acdream's kill_velocity is correct as ported now.

The supporting ObjectInfo.VelocityKilled flag + StopVelocity wiring +
PhysicsEngine.ResolveWithTransition consumer that actually zeros
body.Velocity when the flag is set — these were a no-op stub before
this session and are now correctly wired. Retail anchor:
OBJECTINFO::kill_velocity → CPhysicsObj::set_velocity({0,0,0}, 0) at
acclient_2013_pseudo_c.txt:274467-274475.

═══════════════════════════════════════════════════════════
3. Retail debugger toolchain (#35)
═══════════════════════════════════════════════════════════

When the question is "what does retail actually DO at runtime?" — not
"what does retail's code SAY" — the decomp at docs/research/named-retail/
is invaluable but doesn't capture state interactions across frames.
This commit ships infrastructure to attach Windows' cdb.exe to a live
retail acclient.exe with full PDB symbols and capture state at any
breakpoint.

  - tools/pdb-extract/check_exe_pdb.py — reads any PE's CodeView entry
    and reports MATCH / MISMATCH against refs/acclient.pdb's GUID.
    Always run before attaching cdb. The matching v11.4186 build's
    GUID is 9e847e2f-777c-4bd9-886c-22256bb87f32.

  - tools/pdb-extract/dump_pdb_info.py — dumps a PDB's expected
    build timestamp + GUID + age. Used to figure out which acclient.exe
    build pairs with our PDB.

CLAUDE.md gets a Step -1 in the development workflow ("ATTACH cdb
TO RETAIL when behavior is the question, not code") and a full
"Retail debugger toolchain" section with the workflow, sample .cdb
script structure, and watchouts (PDB names use snake_case for some
classes / PascalCase for CPhysicsObj; ; is cdb's command separator;
killing cdb kills the debuggee; high-hit-rate breakpoints lag the game).

memory/project_retail_debugger.md captures the workflow + key findings
so future sessions inherit the toolchain by reading project memory.

═══════════════════════════════════════════════════════════
4. BSPQuery Path 6 slide-tangent restored (b1af56e behavior)
═══════════════════════════════════════════════════════════

After this session's retail-strict experiments showed that retail-
faithful Path 6 (SetCollide + Phase 3 reset chain) produces a
"lands on roof in falling animation, can't slide off" half-state in
acdream — because our acdream port of step_up_slide / cliff_slide is
incomplete for grounded-on-steep movement — the L.4 slide-tangent
deviation from commit b1af56e is restored as the pragmatic ship state.

The deviation: when an airborne sphere hits a polygon whose normal Z
is below FloorZ (≈ 0.6642, slope > ~49°), project the move along the
steep face to remove the into-wall displacement, set CollisionNormal +
SlidingNormal, return Slid. Body never gets ContactPlane on the steep
poly, never gets the half-state, slides off the slope under gravity's
tangent contribution.

Retail-strict requires the deeper step_up_slide / cliff_slide audit
(filed under #32). Until that lands, slide-tangent is the right
deviation — produces user-acceptable "slide off the roof" behavior.

═══════════════════════════════════════════════════════════
Test status: 833/833 green.

Refs:
  acclient_2013_pseudo_c.txt:283950 (CPhysicsObj::update_object)
  acclient_2013_pseudo_c.txt:273231-273239 (Phase 3 reset path)
  acclient_2013_pseudo_c.txt:274467-274475 (OBJECTINFO::kill_velocity)
  acclient_2013_pseudo_c.txt:323783-323821 (BSPTREE::find_collisions Path 6)

Closes #35. Updates #32 with L.4/L.5 status.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 22:41:12 +02:00
Erik
646ccca85e feat(sky): load Setup-backed (0x020xxx) sky objects via SetupMesh.Flatten
Independent code review by an external agent (2026-04-27) flagged
that SkyRenderer.EnsureMeshUploaded only ever called
_dats.Get<GfxObj>(...) — every 0x020xxx Setup ID returned null and
got cached as an empty submesh list, silently dropping every
Setup-backed sky object across the Dereth Region. In Rainy DG3
alone that's 6 dropped SkyObjects (0x02000714, 0x02000BA6 ×2,
0x02000588 ×4, 0x02000589 ×3 across various time-of-day windows).

Verbatim from retail's CelestialPosition struct at acclient.h:35451:

    struct CelestialPosition {
        IDClass<...> gfx_id;
        IDClass<...> pes_id;          // particle scheduler
        float heading; float rotation;
        Vector3 tex_velocity;
        float transparent; float luminosity; float max_bright;
        unsigned int properties;
    };

Per the named retail decomp, CPhysicsObj::InitPartArrayObject (decomp
~280484) dispatches gfx_id by type prefix: type 6 → direct GfxObj,
type 7 → Setup via CPartArray::CreateSetup (decomp ~287490) which
walks Setup.Parts. Mirror that here: detect 0x020xxxxx in
EnsureMeshUploaded, route to a new EnsureSetupUploaded helper that
flattens via SetupMesh.Flatten (existing Phase-2 utility) and bakes
each part's transform into the vertex positions before upload.
Sky setups don't animate in any way that affects the static-mesh
visual we render here.

Probe extension: also added the Diffuse column to RainMeshProbe's
sky-surface audit so the (Type, Translucency, Luminosity, Diffuse)
quadruple is visible on every flag-bit row.

Visual impact at verification launch: not observable. The Setup
objects in Rainy DGs appear to be tiny placeholder meshes existing
mainly to anchor PES emitters. The dynamic "aurora-like" sheen the
user observes in retail comes from the PES particle layer, which
remains unimplemented (issue #28). Keeping this fix because the
geometry path is now decomp-correct and provides foundation for
the eventual PES wiring.

Issue #29 filed for the residual cloud-density gap. 1227 tests pass.
2026-04-27 23:24:09 +02:00
Erik
a6e7108122 tools(probe): extend RainMeshProbe with sky-surface LUMINOUS audit
Added per-Surface dump that decodes Type bits and prints whether the
LUMINOUS (0x40) flag is set on each. Targets all 27 sky surface IDs
referenced by Holtburg's Region — every dome variant (0x010015EE/F0/F1/F2),
the inner sky/star sheet (0x010015EF), sun (0x01001F67/0x01001348), moon
(0x01001F6A), every cloud variant (0x01004C35..0x01004C3A, 0x010015B6),
and rain (0x01004C42/0x01004C44 — control row).

Result: zero of the 27 surfaces have the LUMINOUS bit set. The previous
SkyRenderer comment that claimed dome+clouds carried the bit was wrong;
the differentiator between "self-lit texture passthrough" and
"ambient+diffuse-tinted" sky meshes is purely the Surface.Luminosity
FLOAT (1.0 dome/sun/moon, 0.0 stars/clouds, 0.1484 rain). This fed
directly into the emissive-default fix in the next commit.

Bonus finding: cloud surface 0x08000023 has Translucency=0.25 (not 0)
which the Translucency plumbing fix in the next commit will also pick
up — clouds will render at 75% opacity, matching retail's curr_alpha
derivation (D3DPolyRender::SetSurface at 0x59c767).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-27 12:04:23 +02:00
Erik
b8e0857b87 tools(probe): add RainMeshProbe — dumps rain mesh surface + polygons + build counts
Sibling of StarsProbe/WeatherEnumerator. Targets GfxObjs 0x01004C42 and
0x01004C44 (the two rain cylinders). For each: dumps the Surface raw
record (Type bits, Translucency, Luminosity, Diffuse, ColorValue,
OrigTextureId), every polygon's SidesType + Stippling + hasPos/hasNeg
emission flags (mirroring GfxObjMesh.Build's neg-side rule), and the
final GfxObjMesh.Build() submesh+index counts.

Built per independent code-review §5: "Run one targeted probe... if one
cylinder has more than 48 indices per side-equivalent, fix the
duplicate-side/cull behavior together with the surface-opacity uniform."

Probe results (rain_mesh_probe.log, not committed):
  Surface 0x080000C5: Type=0x10112 (Base1Image|Translucent|Alpha|Additive),
    Translucency=0.5000, Luminosity=0.1484, OrigTextureId=0x050016A6.
  Polygons: all 8 are Stippling=Positive, SidesType=None, hasNeg=False.
  Build output: 1 submesh, 24 verts, 48 indices = 8 walls × 2 tris × 3.
  → SINGLE-SIDED (the duplicate-side hypothesis is disconfirmed).

Confirmed: the rim brightness excess is purely from Translucency not
being plumbed (acdream draws rain at full alpha=1.0 instead of retail's
0.5). Bonus finding: surface.Luminosity=0.1484 is also ignored by the
renderer's `effEmissive = (luminosity > 0) ? luminosity : sub.SurfLuminosity`
fallback (the local `luminosity` defaults to 1.0 so the fallback never
fires) — but that's keyed on the LUMINOUS flag bit (0x40), which the rain
surface does NOT have. Filed as follow-up.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-27 08:50:02 +02:00