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fix(render): FW4 slice 1 - interior outside-view slices come from the walk

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The FW3 visual gate's stairwell/grass transition flash (grass briefly
covering floor openings at doorway crossings - the #119 family) was the
FW3 dual path leaking: the walk decided WHETHER terrain draws while the
old PortalVisibilityBuilder assembly decided WHERE (slice planes, count,
scissor), and punch fans indexed the old slice array with walk view
indices. The new ACDREAM_PROBE_WALK_ROOT apparatus pinned the boundary
frames: fat/degenerate old-apparatus exit views splash terrain over
interior pixels, the interior depth-clear preserves color, and cells
absent from the walk's flood never repaint. Retail has ONE visibility
structure and cannot produce this.

ClipFrameAssembler.ReassembleOutsideViewFromWalk now materializes the
walk's own outside_view (pixel screen points -> standard NDC -> the
existing ClipPlaneSet machinery) into the assembly's outside-view block
after Collect, ahead of the single PrepareClipFrame publication (moved
below the walk block). The Landscape event carries the walk's active
view count on the record's existing OutsideViewCount field (trace
mapping compares kind only - zero oracle-fixture churn) and the driver
fans exactly that many terrain slices; activeTerrainSliceCount is
deleted end to end. Outdoor roots keep the assembler's single
full-screen slice, asserted ==1.

Hermetic 6,762/0 (4 new materializer tests pin the y-flip and
plane-sign conventions), Walk lane 209/1, InstalledDat walk conformance
40/1. Seals/cell slices/look-in seeding stay on the old per-cell views
for the rest of FW4 (identical dat polygons; only the visible set can
differ).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Erik 2026-08-30 18:21:08 +02:00
parent 8f8b0b9c57
commit 37febd1fe6
11 changed files with 468 additions and 44 deletions
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31
docs/plans/2026-08-30-campaign-fw-frame-walk.md
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@ -475,6 +475,37 @@ hygiene).
**Goal:** everything draws at its walk turn; the patch apparatus and the
old visibility layer are gone.
**FW4 SLICE 1 — the interior outside-view source cutover (2026-08-30,
pulled forward from the FW3 visual gate).** The owner's stairwell/grass
transition report (grass briefly covering floor openings at doorway
crossings, intermittent — the #119 family) probe-pinned to the FW3 dual
path: the walk decided WHETHER terrain draws (`_interiorPView.OutsideView.
ViewCount > 0`) while the old `PortalVisibilityBuilder` assembly decided
WHERE (slice clip planes + count + scissor), and the walk's punch fans
indexed the OLD slice array with WALK view indices. At boundary frames
(`ACDREAM_PROBE_WALK_ROOT` captures: the slices=2 short-flood family at
OUT→IN, a 1-frame outdoor blip mid-crossing) the old builder's exit views
went fat/degenerate, terrain splashed over interior pixels, and the
depth-clear preserves COLOR — any cell absent from the walk's flood never
repainted its pixels. Retail cannot produce this: it has ONE visibility
structure. The cutover: `ClipFrameAssembler.ReassembleOutsideViewFromWalk`
materializes the walk's own `outside_view` (pixel points → standard NDC →
the existing `ClipPlaneSet.From` machinery) into the assembly's
outside-view block right after Collect, before the single
`PrepareClipFrame` publication (moved below the walk block); the
`Landscape` event now carries the walk's active-view count (rides the
record's existing `OutsideViewCount` field — trace mapping compares kind
only, ZERO oracle-fixture churn) and the driver fans exactly that many
terrain slices — `activeTerrainSliceCount` is deleted end to end. Outdoor
roots keep the assembler's single full-screen slice (asserted ==1;
identical content by construction). Suites: hermetic 6,762/0 (4 new
materializer tests pinning the y-flip + plane-sign conventions), Walk
lane 209/1, InstalledDat walk conformance 40/1 — all unchanged or grown.
Remaining desync surfaces deliberately left for the rest of FW4: exit
SEALS + cell slices still assemble from the old per-cell views (identical
dat portal polygons; only the visible SET can differ), and interior-root
look-in seeding still reads the old outside view.
- Entities gate per view via `Render::viewconeCheck` at their cell's walk
turn; dynamics-last and alpha interleave per the walk's stages
(`RetailAlphaQueue` becomes the stream's alpha stage or is absorbed —