Third instance of the same class, and the worst one -- found by the Sol-High
read-only audit (VF-05) and verified against the code before acting.
MaxInfluence, RoomZBuffer and EvaluateSDF's Margin all derive from
MaxRoomRadius / TunnelMaxRadius, while the radii are Lerp(Min, Max, hash), which
yields up to max(Min, Max). A room able to reach a chunk can therefore sit in a
cell the collect region never visited.
Worse than the two fixed earlier today because:
- it is TunnelNetwork, the largest archetype;
- BuildChunkCache is called by BOTH density paths (FRoomGraphSource calls it
rather than transcribing it), so this was never an op-stack bug -- it is in
the shipped original code and always has been;
- the failure mode is a window-invariance break (ARCHITECTURE 8.4): whether a
room exists depends on which chunk you queried from, which in multiplayer
means two peers generate different geometry from the same seed.
Four bound sites now use RoomRadiusEnvelope / TunnelRadiusEnvelope; the two
duplicated copies of the formula still compute the identical expression. No
Lerp, placement, hash or bStore line changed -- with correctly ordered params
max(Min,Max) == Max, so this is bit-identical. A no-op at correct values is the
acceptance signal.
Also adds a reviewer's header to AUDIT-2026-08-CODEX.md marking which findings I
verified (VF-05 confirmed, VF-02 premise confirmed, VF-03 evidence overstated --
its cited fixture corroboration does not exist) and which are unverified leads.
Not built -- Jahni builds.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
