Araminta's ruling (PR #192 follow-up): filter keyed on rung IDENTITY via
the window's own echoed granularity_v2 — Region (incl. the orbital tile
mosaic, whose tiles are all Region-rung requests) samples NEAREST because
GPU bilinear at 204.8 km/cell reads as smoothing-over-absence; District/
Quarter keep LINEAR where cell density earns the blend. One shared helper
(_filter_for_granularity_v2) at both draw call sites; unknown/missing
wire tags fall back to LINEAR (never trusted into NEAREST). COMPOSITE_
SMOOTH survives as the independent compile-time pipeline axis — the
two-axes split is documented in the file header. Washes/border fades
untouched per the ruling. Focused suite 44/44; revert-verified (helper
hardcoded LINEAR -> exactly the three Region-NEAREST tests fail).
Tickets: T-1161
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Bug A (zoom reselection dead): select_rung() redesigned from the two-gate
split to a unified per-rung coverage-ceiling walk (MAX_COVERAGE_M,
finest-first) — which also restores District as a reachable rung
(33-131km extent band; the two-gate model had made it structurally
unreachable). Plus the THIRD instance of the PR #191 C1 clamp-mirror bug
class: _maybe_reselect_rung fed the old rung's _held_n raw into the new
rung's request — the server clamped, the held value didn't, every
cross-rung response stale-dropped. Re-clamped at the boundary; the
leaving_tile_mode flag also fixes a stale request-granularity edge case.
Bug B (orbital = whole body): genuine tile-set model. compute_tile_grid
composes ceil-divided Region-tile centers (canonicalized column wrap,
row clamp, Dictionary-set dedup; Lendel = 3x2 = 6 tiles);
AtlasWindowTileSet owns one AtlasWindowRequest per tile (reusing all
tested request/cache/debounce machinery), fans responses out, per-tile
tile_ready — genuinely progressive; the overlay draws arrived tiles as a
mosaic under the one view transform. enter_orbital branches to tile mode
when >1 tile; single-window path unchanged below the coverage ceiling.
E/W wrap at tile seams live-confirmed (col -6400 wraps to 12739). Pole-
row dedup verified correct but flagged honestly as currently-unreachable
defensive logic (no real radius triggers row collision).
All fixes + fallout verified via revert/confirm-fails/restore. Targeted
suites 256/256; gdlint clean; new 20-test tile-set suite.
The atlas 'regional' screen now opens the LADDER at the canonical orbital
frame (Region granularity, whole body fitted and centered) and wheel zoom
descends continuously — cursor-anchored, unclamped across rungs, with
progressive refinement (held composite keeps drawing, finer rung swaps in
place on arrival; no blank frame, no mode flip). Full-zoom-out resets to
the canonical planetary frame per Jeroen's HARD condition
(is_fully_zoomed_out = extent >= body circumference, not a zoom-value
heuristic). The district_screen nav hop is deleted — D-013 restored:
descent is a zoom gesture, not a nav push. AtlasViewer's heightmap-texture
path is unreachable from nav (code intact; overlay surface deferred, see
report/tickets).
Rung selection: design doc §5's literal formula has NO legal District band
at any real viewport (visual-tolerance band and n=64 coverage ceiling
never overlap — pinned by executable boundary tests at 1600x900);
select_rung() splits it into a coverage ceiling (decides Region) then the
2x visual tolerance (District vs Quarter), documented at the function.
In practice the ladder steps Region -> Quarter directly.
Wire: window_granularity_v2 encoded (omitted at District for byte-compat),
granularity_v2 echoed value keyed + staleness-guarded end to end; Region
clamp mirror replicates the server's bounded halving loop (no closed
form). MIN/MAX_ZOOM widened to [0.0005, 64] — the old 0.5 floor would
have clamped a real body's canonical fit zoom, violating the reset
condition.
Real pre-existing bug fixed in atlas_window_overlay.gd: the draw path used
echoed n as both cell-grid dimension and district extent — only
coincidentally correct at District granularity; Quarter/Region would have
read wrong array offsets. cell_grid_side_for_window() now mirrors the
server's WindowGranularity::cell_grid_side.
Tests: +26 pure-function geometry tests, new 30-test zoom-ladder suite,
extensions across the window cache/request/overlay/delivery suites.
Full suite 3518 green; cold-parse clean.
Cover-fit: fit_window_view zooms from the viewport's LARGER dimension,
no margin factor (any factor under 1.0 leaves a long-axis gap — checked
numerically) — the composite fills edge to edge, overhanging the short
axis into pan-space; the refloat center-equality early-return already
prevents refetch churn at rest (proved, not just tested).
Input model (Jeroen: drag breaks click semantics with map objects):
LMB-drag pan REMOVED from the regional window; clicks are
object-reserved. Pan = held WASD/arrows polled in _process (delta- and
zoom-scaled, camera-pans-toward-key convention verified numerically)
plus edge-scroll within 24px of the viewport border; both suppressed
over UI and on OS focus loss; both set _user_adjusted; wheel zoom and
Esc unchanged. Reads RAW physical keycodes deliberately — independent
of the shared D-054 move_* InputMap actions bound to the same keys
(whose occlusion-leak is pre-existing and now ticketed as T-1146).
Pole wall + east-west wrap unchanged, re-driven through the new
inputs; drag tests replaced, not kept.
Smoothed composite (interim pending T-1143): per-cell colors bake into
an n x n Image/ImageTexture (exact existing colorizer incl. overlay +
ice tint) drawn once with LINEAR filtering — GPU bilinear reads as
terrain, the planetary heightmap's own treatment. Crisp per-cell path
preserved behind COMPOSITE_SMOOTH for T-1143 A/B. Rebuild only on
reference-identity change of window/toggle (is_same — verified true
reference equality; value-equal distinct dicts DO rebuild).
Governance: T-1145 amendment paragraph on D-226 T-1124 SS5 (all three
supersessions); pql decisions validate ok.
Suites: window_viewer 74/74, window_geometry 32/32, window_overlay
(new) 16/16; gdlint clean on all six files.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>