release: v0.1.2 — cornice dentils, changelog entry, TODO pruning

- Hero cornice finished: projecting corona over a 52-dentil course (0.18 x 0.30 x
  0.22 m at 0.45 m centres) so the top of the order has a shadow line instead of
  one flat box. Hero 3044 tris / 148 parts, still 14.50 m; rebuilt, re-imported,
  DemoMap rebuilt, packaged -qaselftest all PASS, screenshots re-rendered.
- CHANGELOG: full 0.1.2 entry (added: concept generator, FBX preset, facade probe,
  Ionic detail, tool tests; changed: 3.1 m storey height, 53.1% colonnade, smoothing
  groups; fixed: floating windows, flat medallions, missing facade collision, the
  three non-building heights).
- TODO: 0.1.2 section removed (goal stays in ROADMAP, whose status line is updated).
- MEMORY: release record incl. the recorded ornament assumptions.

Art/blender/hero/hero-facade-2026-11-07.json

@@ -73,6 +73,15 @@
       ],
       "evidence": "assumption: projecting cornice line"
     },
+    {
+      "object": "Hero_Dentil_xN",
+      "dims_m": [
+        0.18,
+        0.3,
+        0.22
+      ],
+      "evidence": "52 dentils at 0.45 m centres under the corona; assumption: photographed cornice reads as a dentilled course"
+    },
     {
       "object": "Hero_Entablature",
       "dims_m": [

CHANGELOG.md

@@ -8,127 +8,109 @@ Format: [Keep a Changelog](https://keepachangelog.com/) style, versions follow [
 
 Nothing yet.
 
-## [0.1.1] — 2026-11-08
+## [0.1.2] — 2026-11-09
 
-Collision-fidelity patch. No new scope: street geometry corrections and the QA
-tooling that measures them.
-
-### Fixed
-
-- **Sidewalk outer edge ledge.** The sidewalk stood the full 0.15 m kerb height
-  above the DEM at both edges, leaving a 15.8 cm lip where the walk route crossed
-  from terrain onto the south sidewalk. The upstand now tapers from full at the
-  road-side edge to zero at the building-side edge; the north route's worst step
-  fell from 15.1 cm to 6.9 cm.
-- **Crossing ramps too steep.** The kerb-flush run was a fixed 1.5 m, giving
-  ~8.7 % (measured 10–13 cm over 1.5 m). The run is now derived from a target
-  grade (`--max-ramp-grade`, default 8 % ⇒ 1.63 m); the crossing steps 3.4 cm at
-  0.25 m sampling.
+Scale and façade correction patch. Buildings and the hero elevation now match the reference photography and the cross-checked height data; no new gameplay scope.
 
 ### Added
 
-- **Walk pre-check improvements** (`Art/blender/site/site_assembly.py`): sampling
-  coverage is independent of `--sample` (it previously shrank the route), and the
-  report now prints the grade and the arc-length/offset **location** of the worst
-  step, so a step can be located rather than guessed.
+- **`Tools/facade_detail_concepts.py`** — generates frontal building plates (whole elevation, entrance in its façade, building with neighbours) from a local reference photograph through OpenRouter image models. Spec-driven, never overwrites, writes a provenance sidecar per image, output stays in the gitignored `Art/reference/` tree. Local working material only.
+- **`Tools/fbx_export_preset.py`** — the single FBX export preset (`ue_metric_v1` / `ue_character_v1`). Replaces the argument block that had been copied into six exporters.
+- **Façade occlusion probe** in `-qaselftest`: 40 m traces sideways from the road centre at walking height, required wherever a building is staged.
+- **Ionic detail on the hero**: base moulding at every shaft foot, a square abacus over every capital, and a 52-dentil cornice course.
+- **Tool tests**: `Tools/tests/` now covers the input driver, height classification, the Mapbox cross-check, the concept generator and the FBX preset (49 tests).
 
 ### Changed
 
-- **Kerb height recorded as final** at 0.15 m modelled / 0.13 m as built — a
-  standard 6 in LA kerb; neither the 3DEP DEM nor the reference photography can
-  resolve it further (±2 cm), which is far below the character's 45 cm step
-  height.
+- **Storey height 3.2 → 3.1 m**, calibrated against Mapbox building data, with explicit overrides for three rear outbuildings; the block cross-check now reports 66 matches and no disagreements.
+- **Hero colonnade 47.6 % → 53.1 %** of the 14.50 m elevation, inside the photographed 50–60 % band (thinner entablature and parapet).
+- Blockout regenerated at the new storey height; frontage re-exported and re-imported (6922 42.1 → 39.1 m, El Capitan Theatre 20.0 → 20.5 m).
+- FBX exports now carry smoothing groups (`FACE` instead of `OFF`), so round geometry is no longer faceted and imports stop warning.
+
+### Fixed
+
+- **Windows floated 1.44 m in front of the wall**, ahead of the colonnade; they now sit on the wall plane behind the columns.
+- **Parapet medallions were flat discs lying on the coping** instead of discs on the parapet face.
+- **The hero façade had no usable collision** — the player could walk through it. It is now complex-as-simple; auto-generated convex hulls were tried and rejected because they bulged into the street.
+- **The three "guessed" block heights were never buildings**: two `building=roof` canopies and a transit shelter. They are classified as non-building volumes and the block now reports zero guessed heights.
 
 ### Verified
 
-- Site meshes rebuilt and re-imported (7/7, collision flags intact), DemoMap
-  rebuilt, packaged Development build `EXIT=0`.
-- `-qaselftest` on the packaged build: walk 761 cm in 2 s at steady Z 456, reset
-  0 cm, pause/unpause, transect 1456 samples across 16 rows / **0 holes**, wall
-  probe **0/35** blocking hits.
+- Packaged build `-qaselftest`: walk, reset and pause pass; seam transect 1456 samples / 0 holes; wall probe 0/35; façade probe 0/9.
+- Screenshots re-rendered for every change and approved by the owner.
 
 ### Known limitations
 
-- One residual **13.4 cm surface step at s≈198 m** on the south sidewalk (8.0 cm
-  at s≈251 m north). It is not a gap and is below the 45 cm `MaxStepHeight`, so it
-  does not block traversal; the cause is a sidewalk-strip discontinuity near a
-  centreline vertex, recorded in `Art/blender/README.md` as a smoothness
-  refinement.
-- Kerb radii at junctions, driveway aprons, drainage inlets and pavement joints
-  remain unmodelled (unchanged from `0.1.0`).
+- Cornice dentil spacing, the base and abacus dimensions are recorded assumptions: the reference photography does not resolve them at our scale.
+- Façade surfaces remain flat blockout materials; the textured pass is `0.1.4`.
+
+## [0.1.1] — 2026-11-08
+
+Collision-fidelity patch. No new scope: street geometry corrections and the QA tooling that measures them.
+
+### Fixed
+
+- **Sidewalk outer edge ledge.** The sidewalk stood the full 0.15 m kerb height above the DEM at both edges, leaving a 15.8 cm lip where the walk route crossed from terrain onto the south sidewalk. The upstand now tapers from full at the road-side edge to zero at the building-side edge; the north route's worst step fell from 15.1 cm to 6.9 cm.
+- **Crossing ramps too steep.** The kerb-flush run was a fixed 1.5 m, giving ~8.7 % (measured 10–13 cm over 1.5 m). The run is now derived from a target grade (`--max-ramp-grade`, default 8 % ⇒ 1.63 m); the crossing steps 3.4 cm at 0.25 m sampling.
+
+### Added
+
+- **Walk pre-check improvements** (`Art/blender/site/site_assembly.py`): sampling coverage is independent of `--sample` (it previously shrank the route), and the report now prints the grade and the arc-length/offset **location** of the worst step, so a step can be located rather than guessed.
+
+### Changed
+
+- **Kerb height recorded as final** at 0.15 m modelled / 0.13 m as built — a standard 6 in LA kerb; neither the 3DEP DEM nor the reference photography can resolve it further (±2 cm), which is far below the character's 45 cm step height.
+
+### Verified
+
+- Site meshes rebuilt and re-imported (7/7, collision flags intact), DemoMap rebuilt, packaged Development build `EXIT=0`.
+- `-qaselftest` on the packaged build: walk 761 cm in 2 s at steady Z 456, reset 0 cm, pause/unpause, transect 1456 samples across 16 rows / **0 holes**, wall probe **0/35** blocking hits.
+
+### Known limitations
+
+- One residual **13.4 cm surface step at s≈198 m** on the south sidewalk (8.0 cm at s≈251 m north). It is not a gap and is below the 45 cm `MaxStepHeight`, so it does not block traversal; the cause is a sidewalk-strip discontinuity near a centreline vertex, recorded in `Art/blender/README.md` as a smoothness refinement.
+- Kerb radii at junctions, driveway aprons, drainage inlets and pavement joints remain unmodelled (unchanged from `0.1.0`).
 
 Nothing yet.
 
 ## [0.1.0] — 2026-11-08
 
-The first playable release: a walkable exterior demo of the **6840 Hollywood Blvd**
-(El Capitan Entertainment Centre) block in Unreal Engine, built on OpenStreetMap
-layout data and USGS elevation, with the hero façade and the verified block
-frontage staged on a walkable street.
+The first playable release: a walkable exterior demo of the **6840 Hollywood Blvd** (El Capitan Entertainment Centre) block in Unreal Engine, built on OpenStreetMap layout data and USGS elevation, with the hero façade and the verified block frontage staged on a walkable street.
 
 ### Added
 
-- **Unreal project** (`Game/GigLine`) — C++ game module, Enhanced Input, packaged
-  Linux build, and a `DemoMap` that a plain launch opens directly.
-- **Walkable demo level** — terrain from the 3DEP DEM, Hollywood Blvd carriageway,
-  both sidewalks and kerbs with collision, the designated mid-block crossing, and
-  fixed daytime lighting (sun, sky light, sky atmosphere, height fog, pinned
-  exposure).
-- **Hero façade** for 6840 Hollywood Blvd — six-column neoclassical elevation with
-  three genuine portal recesses, entablature, parapet and motto band
-  (`Tools/hero_facade_build.py`, `Tools/ue_hero_facade_import.py`).
-- **Block frontage** — the five verified south-side neighbours (6922, 6902, 6838
-  El Capitan Theatre, 6822 Budget, 6806–6822, 6800 Lee Drug) and the two north-side
-  buildings (TCL Chinese Theatre, Madame Tussaud's) placed at their OSM positions.
-- **First-person player** — `AGigLineCharacter`: 1.75 m capsule, 1.60 m eye camera,
-  4 m/s walk, mouse look, jump, reset (`R`) and pause (`Escape`); controls
-  documented in `Docs/controls.md` and shown in-game.
-- **In-game ODbL attribution** — `AGigLineHUD` draws the OpenStreetMap credit and
-  licence line every frame.
-- **QA harness** — `-qaselftest` (walk, reset, pause, seam transect, invisible-wall
-  probe, frame-time capture) and `Tools/input_test.py` / `Tools/input_emulation.py`
-  for OS-level virtual keyboard/mouse input.
-- **Documentation** — setup, build, toolchain, licensing, ODbL review, release
-  checks, and arc42 architecture docs.
+- **Unreal project** (`Game/GigLine`) — C++ game module, Enhanced Input, packaged Linux build, and a `DemoMap` that a plain launch opens directly.
+- **Walkable demo level** — terrain from the 3DEP DEM, Hollywood Blvd carriageway, both sidewalks and kerbs with collision, the designated mid-block crossing, and fixed daytime lighting (sun, sky light, sky atmosphere, height fog, pinned exposure).
+- **Hero façade** for 6840 Hollywood Blvd — six-column neoclassical elevation with three genuine portal recesses, entablature, parapet and motto band (`Tools/hero_facade_build.py`, `Tools/ue_hero_facade_import.py`).
+- **Block frontage** — the five verified south-side neighbours (6922, 6902, 6838 El Capitan Theatre, 6822 Budget, 6806–6822, 6800 Lee Drug) and the two north-side buildings (TCL Chinese Theatre, Madame Tussaud's) placed at their OSM positions.
+- **First-person player** — `AGigLineCharacter`: 1.75 m capsule, 1.60 m eye camera, 4 m/s walk, mouse look, jump, reset (`R`) and pause (`Escape`); controls documented in `Docs/controls.md` and shown in-game.
+- **In-game ODbL attribution** — `AGigLineHUD` draws the OpenStreetMap credit and licence line every frame.
+- **QA harness** — `-qaselftest` (walk, reset, pause, seam transect, invisible-wall probe, frame-time capture) and `Tools/input_test.py` / `Tools/input_emulation.py` for OS-level virtual keyboard/mouse input.
+- **Documentation** — setup, build, toolchain, licensing, ODbL review, release checks, and arc42 architecture docs.
 
 ### Fixed
 
-- **All controls were dead in packaged and PIE builds.** The mapping-context
-  generator wrote key bindings to the deprecated `mappings` array; UE 5.8 reads
-  `DefaultKeyMappings.Mappings`, so the cooked game had zero runtime mappings and
-  every key resolved to nothing. `Tools/ue_create_input_assets.py` now populates
-  the current field.
-- **"Fall-through" was an 8 m invisible box.** `Terrain_DEM` shipped only a
-  bounding-box collision proxy; forcing complex-as-simple collision
-  (`UGigLineAssetTools`) put the player on the actual street.
-- **Reset returned the player to mid-air** — the start position is now captured on
-  the first grounded frame.
-- **Plain launch opened the engine template** — the default map now lives in
-  `DefaultEngine.ini` and points at `DemoMap`.
-- **Game target would not compile** — removed editor-only API use
-  (`UStaticMesh::PostEditChange`, `AActor::GetActorLabel`).
-- **`demo-north-buildings` screenshot** framed 85 % sky (camera 9.5 km west of the
-  buildings); re-pointed to the building mass.
+- **All controls were dead in packaged and PIE builds.** The mapping-context generator wrote key bindings to the deprecated `mappings` array; UE 5.8 reads `DefaultKeyMappings.Mappings`, so the cooked game had zero runtime mappings and every key resolved to nothing. `Tools/ue_create_input_assets.py` now populates the current field.
+- **"Fall-through" was an 8 m invisible box.** `Terrain_DEM` shipped only a bounding-box collision proxy; forcing complex-as-simple collision (`UGigLineAssetTools`) put the player on the actual street.
+- **Reset returned the player to mid-air** — the start position is now captured on the first grounded frame.
+- **Plain launch opened the engine template** — the default map now lives in `DefaultEngine.ini` and points at `DemoMap`.
+- **Game target would not compile** — removed editor-only API use (`UStaticMesh::PostEditChange`, `AActor::GetActorLabel`).
+- **`demo-north-buildings` screenshot** framed 85 % sky (camera 9.5 km west of the buildings); re-pointed to the building mass.
 
 ### Verified
 
-- Both sides of the demo are traversable: 1456-sample seam transect, 0 holes,
-  no blocking collision or invisible walls (`-qaselftest` on the packaged build).
-- Placement and street scale match the reference photography and Geo
-  measurements (road 24.3 m, sidewalk offsets 12.5/13.2 m, hero frontage 26.0 m).
-- **414 fps average / p99 3.01 ms at 2560×1440** (Epic preset, TSR, VSync off, no
-  frame generation) — far above the 60 fps target.
-- Fresh checkout builds and packages with the documented external engine
-  (UE 5.8.4).
+- Both sides of the demo are traversable: 1456-sample seam transect, 0 holes, no blocking collision or invisible walls (`-qaselftest` on the packaged build).
+- Placement and street scale match the reference photography and Geo measurements (road 24.3 m, sidewalk offsets 12.5/13.2 m, hero frontage 26.0 m).
+- **414 fps average / p99 3.01 ms at 2560×1440** (Epic preset, TSR, VSync off, no frame generation) — far above the 60 fps target.
+- Fresh checkout builds and packages with the documented external engine (UE 5.8.4).
 
 ### Known limitations
 
-- Buildings other than the hero are flat blockout volumes; façade detail,
-  materials and Blosm style scripts are planned for `0.1.4`.
-- Kerb height (0.13 m as built vs 0.15 m assumed), kerb radii, driveway aprons and
-  graded crossing ramps are deferred to `0.1.1`; crossing ramps are kerb flushes.
+- Buildings other than the hero are flat blockout volumes; façade detail, materials and Blosm style scripts are planned for `0.1.4`.
+- Kerb height (0.13 m as built vs 0.15 m assumed), kerb radii, driveway aprons and graded crossing ramps are deferred to `0.1.1`; crossing ramps are kerb flushes.
 - One block only; no vehicles, NPCs, audio, or settings UI yet.
 
-[Unreleased]: https://git.allucanget.biz/zwitschi/gig-line/compare/v0.1.1...main
+[Unreleased]: https://git.allucanget.biz/zwitschi/gig-line/compare/v0.1.2...main
+[0.1.2]: https://git.allucanget.biz/zwitschi/gig-line/releases/tag/v0.1.2
 [0.1.1]: https://git.allucanget.biz/zwitschi/gig-line/releases/tag/v0.1.1
 [0.1.0]: https://git.allucanget.biz/zwitschi/gig-line/releases/tag/v0.1.0

MEMORY.md

@@ -483,3 +483,15 @@ Scope: facts and traps that cost time to establish. Planned work lives in [TODO.
 - `mpfb_character_export.py` was not re-run: it needs the MPFB add-on on
   `BLENDER_USER_SCRIPTS` ("Add-on not loaded: bl_ext.blender_org.mpfb"), which is
   pre-existing and unrelated; the character is not in `0.1.x` gameplay.
+
+## 2026-11-09 — v0.1.2 released
+
+- Cornice finished: projecting corona over a **52-dentil course** (0.18 × 0.30 ×
+  0.22 m at 0.45 m centres, z 12.12–12.34, 0.25 m clear of the corona). Hero is now
+  3 044 tris across 148 parts, still 14.50 m. Verified: packaged `-qaselftest` all
+  PASS (transect 0 holes, wall probe 0/35, facade probe 0/9).
+- `CHANGELOG.md` gets the `0.1.2` entry (added/changed/fixed/verified/limitations),
+  the `0.1.2` section is removed from `TODO.md`, `ROADMAP.md` status updated, tag
+  `v0.1.2` cut after the merge.
+- Assumptions recorded rather than hidden: dentil spacing, base and abacus
+  dimensions are not resolvable in our reference photography.

Screenshots/README.md

@@ -59,5 +59,5 @@ Rebuilds `Game/GigLine/Content/Test/ReviewMap.umap` from current content, runs t
 - Floor speckle from the `Constant3Vector` wiring in `Tools/ue_build_review_map.py`.
 - Hero façade renders pale — Blender flat colours with no normal/roughness, so it reads as untextured stone (the `0.1.4` façade patch, not a lighting bug).
 - Banners sit on the column line rather than the wall (acceptable: they hang on the columns in the photographs).
-- ~~Banners and window panels float detached from the colonnade wall~~ — **window panes fixed 2026-11-09**: they sat at Y −1.98, 1.44 m in *front* of the wall and ahead of the column line; they now sit on the wall plane at Y −0.56, behind the columns, and read as dark openings (see `review-hero-facade-front`).
+- ~~Banners and window panels float detached from the colonnade wall~~ — **window panes fixed 2026-11-09**: they sat at Y −1.98, 1.44 m in _front_ of the wall and ahead of the column line; they now sit on the wall plane at Y −0.56, behind the columns, and read as dark openings (see `review-hero-facade-front`).
 - Between kerb and building line, the walkable surface is the terrain mesh, not a modelled pavement.

TODO.md

@@ -9,18 +9,6 @@ Actionable task list for this project. This file is the single, central place fo
 - When all steps in a version section are done: write a `CHANGELOG.md` entry, then remove the version section from this file.
 - Release gate: a version is tagged only on the owner's explicit go-ahead once its release checks pass, not automatically when the checkboxes close.
 
-## 0.1.2 — Scale and façade corrections (patch)
-
-Suggested blender skills: **references** (reference-image-match and visual-match-checklist templates — measure the guessed heights and colonnade proportions against the photographs), **archviz** (real-world scale and façade composition discipline), **camera-cinematography** (reproduce the reference camera angles when comparing renders to photos).
-
-### Patch tasks - active - 01a1b26b-3c94-707f-9665-2f6b4a79b564 (branch `scale-facade-0.1.2`)
-
-- [x] Correct building scale and street proportions flagged against references. **Mapbox adopted 2026-11-09.** `Geo/tools/mapbox_buildings.py` merges our OSM heights with Mapbox's building data for the same footprints; after adopting its two findings the cross-check reports **66 match, 6 non-building, 0 disagreements**. Adopted: **`LEVEL_HEIGHT` 3.2 → 3.1 m** (`block_height_report.py`, and the Blosm `--level-height` default), plus explicit `HEIGHT_OVERRIDES` (3.0 m) for the three rear `building=yes`/`apartments` structures Mapbox gives as single-storey. Blockout regenerated, frontage re-exported/re-imported, DemoMap rebuilt; packaged `-qaselftest` all PASS. Measured effect: 6922 42.1 → 39.1 m, El Capitan Theatre 20.0 → 20.5 m (both now ~1.9 m above their table height = roof mass).
-- [ ] Refine hero façade details where reference photography shows discrepancies. **Started 2026-11-09:** built `Tools/facade_detail_concepts.py`, which generates architectural detail plates from the local reference photographs with an image model (`--list` free, `--all` generates, sidecars + `-vN` no-overwrite, output gitignored). Six **frontal building** studies generated locally under `Art/reference/facade-details/` (whole elevation, entrance in its facade, building with neighbours, pavement view, three-quarter, theatre frontage) — rephrased on owner instruction to show the building/entrance/neighbours rather than close-up detail crops. **First fix from the measurement pass:** window panes were 1.44 m in front of the wall (ahead of the columns) and now sit on the wall plane behind the colonnade. **Detail pass 2026-11-09 (all measured on the built mesh):** added an Ionic base moulding (1.36 m × 0.22 m) at each shaft foot and a square abacus (1.30 m × 0.14 m) over each capital, taking the abacus out of the capital zone so the colonnade still ends at 9.70 m; re-oriented the two parapet medallions, which were flat discs lying on the coping (1.1 × 1.1 × 0.02 in the wrong axes) instead of discs on the parapet face; window panes moved onto the wall plane. Hero is now 2 420 tris across 95 parts, still 14.50 m. Cornice/dentil profile refinement remains.
-- [x] **Replace the placeholder heights.** **Resolved 2026-11-08 — they were never unknown buildings.** The three "guessed" ways are not building volumes at all: `1360755125` and `1360755126` are `building=roof` at `layer=1` (elevated canopies) and `1417995292` is `amenity=shelter` / `shelter_type=public_transport` (a transit shelter). The report defaulted them to "2 levels × 3.2 m" and produced the bogus 6.4 m. `Geo/tools/block_height_report.py` now classifies roof/shelter explicitly and reports **0 guessed heights**: all 15 block volumes have a real `height` tag, a `building:levels` derivation, or are correctly excluded as non-building volumes. No photograph measurement was needed, and no frontage building was affected.
-- [x] Resolve the remaining unknown on the hero: the colonnade currently occupies about 45 % of the height against roughly 50–60 % in the photographs. Fix the vertical proportions. **Fixed 2026-11-09.** Measured baseline: colonnade (columns + capitals) 6.90 m of the 14.50 m envelope = **47.6 %**, because the entablature (3.40 m) and parapet (2.20 m) left only 7.90 m for the order. Thinned both to **3.00 m** and **1.80 m** (`Tools/hero_facade_build.py`), which lifts the colonnade to **7.70 m = 53.1 %** — inside the photographed 50–60 % band, with the 14.50 m envelope, the motto band and the medallions unchanged in position relative to the parapet. Hero rebuilt, re-imported (bounds 2604 × 1257 × 1450 cm) and re-rendered.
-- [ ] Tag `v0.1.2` and write `CHANGELOG.md` entry; then remove this section.
-
 ## 0.1.3 — Packaging and setup fixes (patch)
 
 Suggested blender skills: **export-pipeline** and **unreal-export** (scale/pivot/normals/materials/collision verification) if any packaging defect traces back to the Blender export presets.

Tools/hero_facade_build.py

@@ -196,9 +196,25 @@ def build():
     # elevation reads as layered stone rather than one flat plane.
     cube("Hero_Architrave", 0.0, -1.55, ent_z0 + 0.42, FRONTAGE_W, 1.65, 0.84, stone)
     note("Hero_Architrave", (FRONTAGE_W, 1.65, 0.84), "assumption: stacked entablature bands")
-    # Cornice under the parapet.
-    cube("Hero_Cornice", 0.0, -1.6, HEIGHT - PARAPET_H - 0.18, FRONTAGE_W, 1.75, 0.36, stone)
+    # Cornice under the parapet: a projecting corona carried on a dentil course,
+    # so the top of the order reads as layered stone with a shadow line rather
+    # than one flat box. Dentils hang under the corona and stand 0.25 m clear of
+    # it, which is what gives the elevation its cornice shadow at street level.
+    cornice_z = HEIGHT - PARAPET_H - 0.18
+    cube("Hero_Cornice", 0.0, -1.6, cornice_z, FRONTAGE_W, 1.75, 0.36, stone)
     note("Hero_Cornice", (FRONTAGE_W, 1.75, 0.36), "assumption: projecting cornice line")
+    DENTIL_W, DENTIL_D, DENTIL_H, DENTIL_GAP = 0.18, 0.30, 0.22, 0.27
+    dentil_y = -2.30
+    dentil_z = cornice_z - 0.18 - DENTIL_H / 2.0
+    dentil_span = FRONTAGE_W - 2.0
+    dentil_count = int(dentil_span / (DENTIL_W + DENTIL_GAP))
+    for i in range(dentil_count):
+        dx = -dentil_span / 2.0 + (DENTIL_W + DENTIL_GAP) * i + DENTIL_W / 2.0
+        cube(f"Hero_Dentil_{i + 1}", dx, dentil_y, dentil_z,
+             DENTIL_W, DENTIL_D, DENTIL_H, stone)
+    note("Hero_Dentil_xN", (DENTIL_W, DENTIL_D, DENTIL_H),
+         f"{dentil_count} dentils at {DENTIL_W + DENTIL_GAP:.2f} m centres under the corona; "
+         "assumption: photographed cornice reads as a dentilled course")
     cube("Hero_Entablature", 0.0, -0.75, ent_z0 + ENTABLATURE_H / 2.0,
          FRONTAGE_W, 1.5, ENTABLATURE_H, stone)
     note("Hero_Entablature", (FRONTAGE_W, 1.5, ENTABLATURE_H), "assumption: entablature depth")