#113 moved to Recently closed: the phantom staircase was the Holtburg meeting hall (AAB3, not A9B3) interior stair cells drawn unclipped from outside - the PView shell clip was routed but never GL-enabled (927fd8f). Misplaced-cell hypothesis refuted with dat evidence. #112 residual paragraph updated: retail straddle gate live-binary verified + ported (414c3de); at-doorway demote is retail-faithful, deep gaps now keep-curr. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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docs/ISSUES.md
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docs/ISSUES.md
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@ -3749,61 +3749,75 @@ adjacent-claim shape self-heals, dat-tested) then retail keep-curr. Poisoned
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saves stay covered at the snap (#107/#111 AdjustPosition). P1 retail-golden
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gates explicitly green (11/11).
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**RESIDUAL (documented by
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`Issue112MembershipTests.A9B3CottageGap_..._DocumentsResidual`):** at the
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doorway-region gap itself, the NORMAL outdoor-candidate path still demotes
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(the BFS reaches the exterior portal → outdoor cells enter the array). Open
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oracle read: retail's `add_all_outside_cells` gate in
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`CEnvCell::find_transit_cells` (pc:317499 region) — sphere-proximity to the
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exterior portal polygon vs mere graph reachability. If proximity-gated, the
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at-door demote disappears and the DocumentsResidual assert flips to keep-curr.
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Re-promotion at doorway cells works (retail-identical), so the demote now
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self-heals walking in — no stranding. Live gate pending: user re-walks the
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A9B3 cottage; expect interior to stay rendered (brief doorway flicker at most).
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The missing OBJECT collision in that cottage = #99 data point (A6.P4 debt).
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Scan data: standing-now → [0x103]; flip-a → []; flip-b → [0x100].
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**RESIDUAL RESOLVED 2026-06-10 (`414c3de`, live-binary oracle):** retail's
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gate read straight from the running 2013 client (cdb attach,
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`CEnvCell::find_transit_cells` @ 0052c820 — BN pseudo-C had invented
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portal_side tests in this branch): outdoor cells are admitted IFF a path
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sphere STRADDLES an exterior portal's polygon plane,
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`|dist| < radius + F_EPSILON(0.0002)`. Ported as the straddle gate on the
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membership PICK's outdoor branch; the collision cell SET keeps the A6.P5
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topology widening until #99/A6.P4 (outdoor-registered doors must stay
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findable from indoors). Consequences: (a) the at-doorway gap demote is
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RETAIL-FAITHFUL (gap point 0.23 m from 0x104's door plane < 0.48 m foot
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radius → retail straddles + demotes + self-heals inward) — test renamed
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`...DemotesRetailFaithfully`, expectation unchanged; (b) deep-interior
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containment gaps in ANY house now keep-curr like retail instead of demoting
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(new pins: `A9B3Cottage_GapBeyondStraddleDistance_KeepsCurrCell` +
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`FindTransitCellsSphere_ExitPortalStraddleGate_MatchesRetail`). Live gate
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pending: user re-walks the A9B3 cottage; expect interior to stay rendered
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(brief doorway flicker at most). The missing OBJECT collision in that
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cottage = #99 data point (A6.P4 debt). Scan data: standing-now → [0x103];
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flip-a → []; flip-b → [0x100].
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---
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## #113 — Phantom exterior staircase on an A9B3 building (not in retail); suspect misplaced interior cell
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**Status:** OPEN
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**Severity:** MEDIUM (visual fidelity; suspect shares a root with the same
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building's containment gap #112 and collision gaps #99)
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**Filed:** 2026-06-10 (late — user side-by-side vs retail)
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**Component:** render / building cells (or dat interpretation)
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**Symptom:** an A9B3 building (near the #112 hill cottage; NPCs Aun Kielerea +
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The Sentry nearby, spot ~(183, −111, 116) world) shows a stone-and-wood
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STAIRCASE attached to its exterior wall in acdream; the retail client shows a
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plain wall with a window there (user screenshots, 2026-06-10). The stairs are
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NOT pickable (clicks select only NPCs behind them) ⇒ not a stab/WorldEntity —
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building-shell or interior-cell geometry.
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**Hypothesis (would unify three symptoms at this building):** a misplaced
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interior EnvCell — an indoor staircase cell whose world transform puts its
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geometry outside the shell. That would simultaneously explain (a) the phantom
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exterior stairs, (b) the interior containment gap (#112's dead zone = a cell
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volume sitting in the wrong place), and (c) missing collision on objects in
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the house.
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**Next steps:** (1) ACViewer oracle — open the same landblock; stairs present
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there ⇒ shared dat-interpretation, absent ⇒ our transform/draw
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(feedback_acviewer_as_oracle). (2) Offline: dump A9B3's LandBlockInfo
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buildings + per-cell Position.Origin/rotation; look for a cell whose
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transformed AABB escapes the building footprint. (3) Identify the building id
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(the landblock's building list near the spot).
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**Meta (user, 2026-06-10):** "we should not have to verify all houses like
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this" — agreed; the open systemic debts are A6.P4 per-cell shadows (#99,
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fixes collision everywhere), the #112 residual oracle read, and this transform
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check. If (2) finds a systematic per-building transform error, ONE fix covers
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every affected house.
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---
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# Recently closed
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## #113 — Phantom exterior staircase (Holtburg meeting hall): PView shell clip was never GL-enabled — [FIXED 2026-06-10 · 927fd8f, user visual gate pending]
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**Status:** FIXED (self-gated by screenshot comparison at the original spot —
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phantom gone; formal user visual gate pending)
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**Closed:** 2026-06-10
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**Component:** render (PView shell pass GL state)
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**Attribution (dat-evidenced — the filed "A9B3 misplaced interior cell"
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hypothesis is REFUTED):** the building is the Holtburg MEETING HALL — AAB3
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building[0], model `0x010014C3` at AAB3-local (36,84,116), not an A9B3
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building (A9B3 has exactly ONE building, the #112 hill cottage; the user
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stood at the A9B3/AAB3 boundary — `issue112-gate1.log` cell-transit trail —
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and clicked through the hall to the NPC behind it). The hall's interior
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stair cells (0x100..0x106, a ring climbing z 116→124.5 to the deck hatch)
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have geometry COINCIDENT with the shell's west wall (both at local x=29.0).
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**Root cause:** retail clips drawn CELL geometry to the accumulated portal
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view (`Render::set_view` :343750 + `planeMask=0xffffffff` per cell polygon
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:427922 → `polyClipFinish`). Our equivalent — `UseShellClipRouting` →
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`mesh_modern.vert` `gl_ClipDistance` — was routed with CORRECT tight clip
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regions (`Issue113MeetingHallFloodTests` proves 4–6 planes, door-aperture
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NDC boxes) but was INERT: `gl_ClipDistance` writes are ignored unless
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`GL_CLIP_DISTANCEi` is enabled, and no caller ever enabled it for the shell
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pass (born inert in `1405dd8`). Flooded interior cells drew WHOLE → the
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interior staircase painted across the exterior wall; unpickable because
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it's cell geometry. 5th instance of
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`feedback_render_self_contained_gl_state`.
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**Fix (`927fd8f`):** enable `GL_CLIP_DISTANCE0..7` around exactly the shell
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pass in `RetailPViewRenderer.DrawEnvCellShells` (no early-outs between set
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and restore). Entities/characters stay unclipped (retail's mesh path is
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viewcone-check, not poly-clip — comment scoped). Known remaining
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approximation: slot-0 fallback slices (>8-plane apertures) still draw
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pass-all — the assembler's scissor fallback remains unimplemented (rare;
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pinned 0 such slices at the hall).
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**Refuted along the way (evidence in `Issue113PhantomStairsDumpTests`):**
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the unifying misplaced-cell hypothesis — all 17 A9B3 cottage cells share
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one identical dat Position (nothing to misplace); the #112 gap is a real
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20 cm doorway micro-gap, not a displaced volume; missing object collision
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remains #99/A6.P4. A9B3's dat has NO stair geometry anywhere near the spot
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(shell = balcony slabs z119 + turret roof; cells flat 116/118.8).
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## #111 — ACE-mutated indoor restores: transparent interior / wrong placement at login — [DONE 2026-06-10 · 5f1eb7c + 5706e0e + 2735695]
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**Status:** DONE (user-gated: clean indoor logins at two different buildings —
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