Files
gig-line/Tools
zwitschi 32dff056c3 fix(blockout): regenerate with --origin; frontage back on the verified spans
The 0.1.2 blockout regeneration ran without --origin, so Blosm centred on the
extract instead of fitting the project frame. The frontage shifted ~119 m in X and
~2.4 m in Y and the hero fell outside the 6902/6838 gap - the verified placement
was silently undone, while every render still looked like a plausible block.

- Blockout regenerated with --origin 34.101545,-118.338718 (affine residual 0.0 cm);
  frontage and north buildings re-exported and re-imported.
- Verified spans restored: 6922 -24276..-17700, 6902 -17749..-14591, hero
  -14644..-12028 between them, theatre -12082..-8210, TCL -22889..-18442,
  Tussaud's -27071..-22799.
- ue_apply_facade_kit now uses get_actor_bounds() (world space). It had used the
  static mesh bounding box, which is building-line-local, so every kit piece was
  placed ~12 km east of its building in empty ground.
- ue_import_north_buildings.py was missing 'import sys' (NameError, exit 255,
  import silently skipped) - the same trap as the hero importer.
- Kit re-applied: 625 pieces across eight buildings; packaged QA still PASS
  (walk, transect 0 holes, wall probe 0/35, facade probe 0/9).
2026-11-08 19:32:47 +01:00
..

Tools

Repeatable helpers that drive Blender, Unreal, and the reference/asset sources. Nothing here is hand-run twice: every step that produced committed content has a script.

Geographic tools live in Geo/tools/ and the Blender-side builders live next to their output in Art/blender/*/; this folder holds everything that talks to Unreal, the network, or the repository.

Conventions

  • One script, one job. Every input is an argument; no interactive prompts.
  • Absolute paths where a tool crosses into a sandbox (Blender Flatpak, the Unreal commandlet). Those processes do not share the repo's working directory.
  • Unreal commandlets swallow print(), so each writes a result file under /tmp/gigline/. Read the file; do not trust the exit code alone.
  • No credentials, no writes outside the project by default.

Repository and assets

Tool Purpose
check-lfs.sh Fails if the lfs filter is missing or an LFS-tracked file was committed as a plain blob
facade_kit_build.py Builds the reusable façade module kit at the measured 4.96 m bay: pilaster, sill, lintel, window bay (surround + glazing), shopfront bay (piers, glass, fascia), door bay (jambs, door, threshold), cornice and parapet + coping. Exports each piece with the shared preset plus a JSON part report (dims + evidence per piece).
ue_import_facade_kit.py Imports the kit into /Game/Hollywood/Kit/* as static meshes with complex-as-simple collision; writes /tmp/gigline/kit-import.txt.
ue_apply_facade_kit.py Lays the kit over a building's street face from its own bounding box: bay count = round(width / 4.96), storeys from the height, shopfronts on the ground floor, windows above, pilasters on bay boundaries, cornice and parapet at the top. Clears a previous application first; unique labels per building.
generate_facade_textures.py Deterministic stdlib PNG generator for the facade maps (T_StoneAshlar, T_Stucco, T_Asphalt, T_Concrete, each _BC base colour + _R roughness). Pure-zlib writer, hash-based value noise, identical bytes on every run; --size and --out (/tmp/gigline/textures by default). ue_build_demo_map.py imports them into /Game/Hollywood/Textures and samples them world-aligned.
ue_common.py Shared helpers for the Unreal commandlet scripts: make_writable() clears the read-only bit an LFS .umap checks out with (otherwise save_map() returns False silently), and require_saved() makes that failure explicit.
fbx_export_preset.py The single FBX export preset (ue_metric_v1 / ue_character_v1): metres→centimetres via FBX_SCALE_NONE, axis mapping east +X / north −Y / up +Z, mesh_smooth_type="FACE" (smoothing groups survive the import). Every Blender exporter imports it instead of copying the argument block; preset_kwargs() is bpy-free and unit-tested.
sibling_asset_audit.py Reads the sibling project's prop library from GLB headers into Art/props/reuse-manifest.json; copies nothing
scale_test_export.py / ue_scale_test_import.py The 1 m = 100 uu scale test; the named presets ue_metric_v1 live in these two files

Reference gathering

Tool Purpose
commons_fetch.py Wikimedia Commons: search, exact File: titles, or a whole category; writes a provenance sidecar.json
page_image_fetch.py Resolves a web page's og:image and downloads it (Flickr, Commons file pages, photo blogs)
addon_compat_probe.py Verifies MPFB/Blosm can load and generate headless on the pinned Blender

Blender content

Tool Purpose
hero_facade_build.py Parametric hero façade; emits a JSON report naming the evidence behind every part
mpfb_character_export.py MPFB human, standard rig, baked skin, FBX export

Unreal import and level building

Tool Purpose
ue_import_site.py Imports the six site FBXs into /Game/Hollywood/Site, setting collision complexity per mesh
ue_hero_facade_import.py Imports the façade and places it on the measured building line
ue_build_demo_map.py Builds /Game/Hollywood/DemoMap: lighting, façade, site meshes, player start
ue_build_review_map.py Rebuilds Test/ReviewMap, stages the shot camera list, and stages the demo-map views
ue_create_input_assets.py Creates /Game/Input actions and the mapping context headlessly
ue_character_import.py Skeletal import plus the material/texture chain Interchange skips

Visual review

Tool Purpose
render_screenshots.py / render_screenshots.sh Rebuilds the review map, runs the game, captures the shot list into Screenshots/
judge_screenshot.py Vision-model pre-check: judges a screenshot against an expected-scene description (--image + --expect, or --shots for every shot in the README). Reads OPENROUTER_API_KEY from .env (ignored). Optional helper — a human must still approve.

Gameplay QA

Command Purpose
UnrealEditor <uproject> /Game/Hollywood/DemoMap -game -qaselftest Headless behaviour check: drives forward input for 2 s, then resets and pauses. Logs GigLine QA: ... PASS/FAIL lines and a final RESULT. Runs only with -qaselftest, so normal play is unaffected.
-qaselftest phases Walk, reset, pause/unpause, a 16-row seam transect (0 holes), a ground-referenced wall probe (0/35) and a facade occlusion probe that fires sideways from the road centre and requires a blocking wall wherever a building is staged (0/9), plus a frame-time capture writing Saved/Profiling/perf-walk-frametimes.csv and logging GigLine PERF:.
gigline.SetupLogs cvar Spawn/input setup logging, off by default (DefaultEngine.ini [ConsoleVariables]); enable at runtime with gigline.SetupLogs 1.

Reference and concept generation

Tool Purpose
facade_detail_concepts.py Generates frontal building plates (whole elevation, entrance in its facade, or building with neighbours) from a local reference photograph with an image model (OpenRouter); close-up detail crops are deliberately not requested because they cannot be measured for proportion. --list is free and shows which studies have their reference present; --all/--only <name> generates. Never overwrites (writes -v2, -v3), writes a .refgen.json sidecar per image (model, prompt, source photo, SHA-256), and puts everything under Art/reference/facade-details/ — gitignored, local-only, never shipped. Costs money per image, so it is never automatic.
judge_screenshot.py (see Visual review)

Input injection

Tool Purpose
input_emulation.py Pure-stdlib ctypes/fcntl driver that creates a virtual keyboard+mouse on /dev/uinput. The desktop treats it as real hardware, so it proves whether OS input actually reaches the game. Needs /dev/uinput writable (ACL on this host).
input_test.py Injects a scripted sequence into the focused window: --sequence move:2,look:3,jump:1,reset:1,pause:1,click.

Tests

python3 -m pip install -r requirements-tools.txt
python3 -m unittest discover -s Tools/tests -t Tools -p 'test_*.py'

Stdlib unittest, no Blender/Unreal process. See tests/README.md: test the pure parts (encoding, classification, maths, parsing); if logic is buried in main(), extract it into a function so it can be tested.