feat(chatt): Chattanooga Mini — tilt-shift diorama of downtown Chattanooga#217
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A miniature diorama of downtown Chattanooga: real geodata (OSM footprints + USGS 3DEP terrain + USGS NAIP aerial) baked offline into public/chatt/, rendered as a stylized tilt-shift toy in R3F. Four camera modes (tour/miniature/follow/ walk), palette toggle, guided Riverfront tour. Bake pipeline (scripts/bake/, run via pnpm bake): Overpass -> 1544 buildings + 2499 streets, OpenTopoData ned10m -> terrain grid, NAIP -> meter-proportional drape, build-scene projects to a local ENU frame + tag-bucketed height heuristic. Generic 3D stage (src/stage/): StageCore + Rig (headless 4-mode camera) + Hud + tilt-shift composer (three EffectComposer) + lightRig + materialKit — built to be liftable into any R3F route. Chattanooga-specific layer in src/world/, src/packs/, src/agents/. Route at src/app/chatt/ (dynamic ssr:false). Renders verified on a real GPU. 51 diorama unit tests pass; tsc clean. Known follow-ups tracked as issues: buildings sit on a flat layer below the topology (terrain coupling), and Miniature mode can not yet pan to the south (Choo Choo) end. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Buildings floated on a flat Y=0 slab while the terrain sat at raw 194-249m elevation. Add a shared elevationAt(grid,manifest,x,z) sampler (correct N-S sign v=0.5-z/groundHm, verified against the terrain rotateX convention) + minElevation. Normalize terrain down by minElevation so the lowest ground is Y=0, and seat each building/hero/street vertex on elevationAt-minElevation. Now buildings sit ON the topology and the NAIP drape reads as rolling terrain. Verified by screenshot. Closes #215 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…hoo (#216) Miniature/orbit mode had a fixed pivot — you were stuck at the north end and could not reach the south. Add WASD focus-panning to _orbit (camera-relative forward/right, reusing the _driveAvatar basis), clamped to the corridor extent (panMin/Max X/Z options). Extend RIVERFRONT_TOUR with south-end waypoints (Republic Centre, Downtown Core, Chattanooga Choo Choo) so the guided tour traverses the whole 5.8km corridor. Verified by screenshot: WASD pans from the downtown/river north end to the Choo Choo south end. Closes #216 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The two buildScene() integration tests read public/chatt/_raw/osm.json, but _raw/ is gitignored (large, regenerable via pnpm bake) so it is absent in CI / fresh clones — causing ENOENT failures in the Test and accessibility jobs. Guard them with describe.skipIf(!hasRaw): they run locally where the cache exists and skip cleanly in CI. The pure-geometry tests (ringArea/centroid) always run, and the committed derived artifacts are covered by the runtime component tests. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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A miniature tilt-shift diorama of downtown Chattanooga at
/chatt, driven by real geodata baked offline.What this adds
scripts/bake/,pnpm bake): Overpass → 1544 buildings + 2499 streets, OpenTopoData ned10m → terrain, USGS NAIP → meter-proportional aerial drape,build-sceneprojects everything into a local ENU frame with a tag-bucketed height heuristic. Output committed topublic/chatt/; runtime makes zero third-party calls.src/stage/):StageCore+ headless 4-modeRig(tour/miniature/follow/walk) +Hud+ tilt-shift composer (threeEffectComposer) +lightRig+materialKit— built to be liftable into any R3F route (import-guard test enforces zero project imports).src/world/,src/packs/,src/agents/): buildings/terrain/streets/heroes, palette profiles (true-to-life ⇄ toy), Riverfront tour, trolley.src/app/chatt/(dynamicssr:false); provenance shown in HUD (© OpenStreetMap · USGS 3DEP · USGS NAIP).Verification
tscclean; full pre-push CI + production build passed.Known follow-ups (tracked)
Notes
🤖 Generated with Claude Code