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>
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>
