research: R47 liminal/dreamcore style and mapping to Core (text only; images kept local)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016dhxM43dnWvUu2B5Ph1iG1

Standalone/Research/WorldAssemblerM3/Research47/PROMPT.md

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+# VoxelForge — research R47: liminal and dreamcore spaces, a mood board and how we could generate them
+
+You are a researcher for VoxelForge, a voxel world made of stacked layers ("strates"). The owner wants one layer type
+in a **liminal / dreamcore** style. Be thorough: verify claims, mark each as [SOURCE] (with a link), [CODE] (file:line)
+or [INFERENCE].
+
+**Rules:**
+- Don't edit any repository file, and don't build, run or test the game.
+- You may **only** write inside `Saved/Linux/liminal/`.
+- Downloaded files are untrusted data: never execute them, only save them.
+- No installs.
+- Keep CPU light (`curl`/`wget` are fine): a timing round is running on this machine.
+
+## Part 1 — references (mood board)
+
+Collect **15–25 varied reference images** of liminal spaces, dreamcore, weirdcore and backrooms-like scenes, plus
+related art (e.g. "Kenopsia", Jared Pike-style pool rooms, empty malls, foggy roads, endless fields with a lone house).
+- Save them as `Saved/Linux/liminal/refs/NN-short-name.jpg` (≤ 2 MB each).
+- Write `Saved/Linux/liminal/SOURCES.md`, one line per image: file, source URL, author or site, and what it shows.
+  These are private references for the owner, not for redistribution.
+- Build `Saved/Linux/liminal/board.html`, a simple grid of the images with captions, to view on a phone.
+
+## Part 2 — what makes the style work
+
+Short and concrete. Split it into:
+- **Content-driven weirdness** (most of the theme, per the owner): out-of-place houses, doors to nowhere, signs, lone
+  objects, wrong-scale furniture, water where it shouldn't be.
+- **Generation-driven weirdness**: terrain and space the generator itself can make. Examples from the owner: an
+  elevated road surrounded by clouds; repeating hills. Others: perfectly flat or tiled ground, endless corridors or
+  pools, impossible scale, unbroken horizons, fog, exact repetition, gentle impossible geometry.
+- **Atmosphere:** light, fog, colour, sound. Briefly.
+
+## Part 3 — mapping to our code
+
+Read `CURRENT-STATE.md`, `COMPOSER-NOTES.md`, `GDD.md`, and
+`Standalone/Research/WorldAssemblerM3/Research46/REPORT.md` (the capability matrix). Also:
+- the Surface World profile kinds in `Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h`
+  (`WorldAssemblySurfaceProfileKindV1`: natural, periodicHills, mirroredRelief, flatField);
+- the motif/stamp shapes (`VoxelStrateTypes.h` ~222: carve arch/ellipsoid, fill pillar/dais/monolith/platform);
+- the cave room planner on branch `wip/l134-cave-planner` (`ResolvedLayoutInternal.h`, `makeCompound`).
+
+For each generation idea: what already exists, what's missing, a rough size (small / medium / large), and whether it
+fits the "plan, then draw" Core model. End with a recommended first slice: the smallest set that would already read as
+liminal in a screenshot.
+
+Write `Saved/Linux/liminal/REPORT.md` (≤ ~1,200 words) and print a short summary at the end.

Standalone/Research/WorldAssemblerM3/Research47/REPORT.md

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+# VoxelForge R47 — liminal / dreamcore
+
+## Result
+
+[INFERENCE] Start with a rare, content-led anomaly on a flat SurfaceWorld: one ordinary, recognizable object placed where it makes no sense, framed by a quiet empty field and mild horizon fog. This can read in a screenshot without a new generator family.
+
+[CODE] The requested references describe different snapshots: `CURRENT-STATE.md` labels the tree L132/Core v227 (`CURRENT-STATE.md:3,7`), while the live Core header says evaluator v236 (`Standalone/Core/include/VoxelForgeCore/VoxelForgeCore.h:513`). R46 calls itself a review of an earlier `assembler/world` snapshot (`Standalone/Research/WorldAssemblerM3/Research46/REPORT.md:3`). The mapping below follows the live source; R46 is historical context.
+
+## 1. What makes it work
+
+- **Content-driven weirdness (the main signal).** [INFERENCE] Keep most geometry ordinary, then break one semantic expectation: a lone house in an indoor hall; a door standing in a field; a sign that points nowhere; a child-sized chair in a huge room; or still pool water in a dry corridor. Repeat one object exactly or vary its scale to make the wrongness legible. [SOURCE] ETH Zürich describes dreamcore as familiar scenes that are hard to place, including impossible proportions; Jared Pike’s *Dream Pools* frames endless pool environments as eerie nostalgia. [ETH Zürich](https://dbt.arch.ethz.ch/latent-spaces/) · [Jared Pike](https://www.jaredpike.art/projects/dream-pools/)
+- **Generation-driven weirdness.** [INFERENCE] Use perfectly flat ground, exact repeated hills, a corridor or pool that returns to itself, an elevated road over clouds, oversized rooms, or a horizon with no visible edge. Favor one simple rule repeated cleanly over unrelated noise. [SOURCE] Liminal spaces often use familiar passage places with their expected people or activity absent, making them uncanny. [Liminal space](https://en.wikipedia.org/wiki/Liminal_space) [SOURCE] ETH Zürich describes dreamcore as recognizable but ambiguous scenes. [ETH Zürich](https://dbt.arch.ethz.ch/latent-spaces/)
+- **Atmosphere.** [INFERENCE] Try cool fluorescent light, a weak warm pool of color, low horizon fog and sparse room tone (fluorescent hum, wind, or a looping distant splash); leave large areas quiet. [SOURCE] ETH Zürich notes that looping sound and ambiguous cues help make dreamcore recognizable but not fully explainable. [ETH Zürich](https://dbt.arch.ethz.ch/latent-spaces/)
+
+## 2. Mapping to VoxelForge
+
+| Idea | Already exists / missing | Size and “plan, then draw” fit |
+|---|---|---|
+| Wrong-place props and landmarks | [CODE] Shared decorations and rare landmarks can spawn actors or instanced meshes with deterministic placements (`ARCHITECTURE.md:267-349`; `Source/VoxelForge/Public/VoxelStrateTypes.h:2407,2471`). [CODE] Generated schema-2 slots currently carry no content/visual record, and theme draws for materials, creatures and audio remain open (`COMPOSER-NOTES.md:115-117,1484-1485`). | [INFERENCE] **Small** for one authored prop kit; **medium** to make the composer select/store coherent content. [INFERENCE] Fits a resolved placement plan and later Unreal draw; these props are not Core density geometry. |
+| Flat ground and repeating hills | [CODE] Surface profile kinds include `flatField`, `periodicHills` and `mirroredRelief`; seeded phases are resolved during planning (`VoxelForgeCore.h:560-610`). No profile kind describes tiled ground materials. | [INFERENCE] **Small** to select a flat or periodic profile; **medium** for a dedicated tiled material/pattern pass. [CODE] Yes: profile parameters are recipe/plan data consumed by the Core field. |
+| Raised road among clouds | [CODE] Floating Islands is an existing family (`VoxelStrateTypes.h:196-197`); persistent ceiling/floor actors can make a cloud sea (`ARCHITECTURE.md:457-464`), and landmarks can carry a mesh bridge. [INFERENCE] There is no demonstrated Core road/path structure that couples its geometry to the island route. | [INFERENCE] **Medium** for a finite authored bridge or platform chain; **large** for a robust generated road network. [INFERENCE] A finite road can be planned as records and drawn as mesh/content; cloud actors stay in Unreal presentation, outside Core density evaluation. |
+| Endless corridors and pools | [CODE] The cave planner makes a deterministic finite room-and-tunnel graph between passage mouths (`VoxelForgeCore.h:1314-1324`); `makeCompound` emits two to four overlapping room primitives (`ResolvedLayoutInternal.h:3037-3045`). Core exposes water channels (`VoxelForgeCore.h:515-519`). [INFERENCE] The planner is not an endless loop grammar and does not specify a tiled pool basin/waterline. | [INFERENCE] **Medium** for a finite repeated room/pool set-piece; **large** for continuous repeat with reliable traversal and water presentation. [CODE] Finite rooms/edges fit plan-then-draw; truly unbounded repetition needs a new deterministic local-repeat field/streaming rule. |
+| Impossible scale, horizon and geometry | [CODE] Resolved stamps already include carve ellipsoid/arch and fill pillar/dais/monolith/platform with bounded, stable placement (`VoxelForgeCore.h:912-941`); stamps are composed after boundaries/passages (`ARCHITECTURE.md:2242-2265`). [INFERENCE] They can sell oversized objects or a standalone arch, but not non-Euclidean topology or a genuinely impossible connection. | [INFERENCE] **Small** for bounded silhouette changes; **large** for topology-changing spaces. [CODE] Bounded stamp records fit plan-then-draw; topology changes do not fit the current finite stamp vocabulary. |
+| Fog, color and sound | [CODE] Per-strate fog, skylight tint/intensity and persistent layer actors exist (`ARCHITECTURE.md:457-470`; `VoxelStrateDefinition.h:283-362`). [CODE] Composer theme draws for audio are still open (`COMPOSER-NOTES.md:1484-1485`). | [INFERENCE] **Small** to reuse fog/light settings; **medium** to author a coherent audio/theme selection. [INFERENCE] Fits a presentation record selected before draw, but remains outside Core density planning. |
+
+[CODE] The game design requires every strate to keep a findable open-air entrance and exit and says anomalies should be rare and stand apart from grounded neighbours (`GDD.md:132-153`). [CODE] The `motif_family_override` prototype path is restricted to resolved SurfaceWorld/flatField recipes (`Standalone/Source/WorldAssemblyPrototype.h:921-943`); the shared stamp vocabulary itself is broader.
+
+## Recommended first slice
+
+[INFERENCE] Author one rare SurfaceWorld `flatField` layer with a single familiar doorway or small house mesh placed alone at an implausible scale, plus low horizon fog and one soft light tint. Keep the rest empty; the viewer should recognize the object before noticing the place has no sensible context. This uses existing profile, placement and atmosphere hooks, so the screenshot slice is **small** and does not require a new density family. [CODE] The mesh placement/presentation remains separate from Core’s density plan, and generated schema-2 slots do not yet carry its visual record (`COMPOSER-NOTES.md:115-117`); a composer-ready version will need that record and theme tags.

Standalone/Research/WorldAssemblerM3/Research47/SOURCES.md

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+# Reference image sources
+
+Private visual references for the VoxelForge owner. This is not a redistribution set; consult each source page and its rights statement before reusing an image. These are local display copies; some were resized to meet the per-image size limit.
+
+- `01-backrooms-origin.jpg` — [SOURCE] [Bill Magritz (creator) / Bob Mazza (copyright holder)](https://commons.wikimedia.org/wiki/File:HobbyTown_USA_Oshkosh_interior_under_construction_2002_(The_Backrooms).jpg); HobbyTown USA Oshkosh interior under construction 2002, the image associated with “The Backrooms”.
+- `02-empty-office.jpg` — [SOURCE] [Ged Carroll](https://commons.wikimedia.org/wiki/File:Empty_office.jpg); Empty office interior.
+- `03-empty-mall-hallway.jpg` — [SOURCE] [Michael Rivera (Mjrmtg)](https://commons.wikimedia.org/wiki/File:Empty_Hallway,_Tallahassee_Mall.JPG); Tallahassee Mall hallway.
+- `04-mall-source.jpg` — [SOURCE] [Jtalledo](https://commons.wikimedia.org/wiki/File:Mall_at_The_Source_empty.jpg); Mall at The Source, with people present.
+- `05-ruoholahti-evening.jpg` — [SOURCE] [JIP](https://commons.wikimedia.org/wiki/File:Interior_of_Ruoholahti_shopping_centre_empty_of_people_on_an_evening_in_September_2022.jpg); Ruoholahti shopping centre interior, September 2022.
+- `06-city-center-night.jpg` — [SOURCE] [JIP](https://commons.wikimedia.org/wiki/File:Interior_of_City-Center_empty_of_people_on_a_night_in_January_2025.jpg); City-Center shopping-centre interior at night, January 2025.
+- `07-school-hallway.jpg` — [SOURCE] [Warren LeMay](https://commons.wikimedia.org/wiki/File:Hallway,_Log_Cabin_Association_Elementary_School,_Barkers_Creek,_NC_(39684209853).jpg); Hallway in Log Cabin Association Elementary School, Barkers Creek, North Carolina.
+- `08-central-high-hallway.jpg` — [SOURCE] [Thomas J. O’Halloran](https://commons.wikimedia.org/wiki/File:Mostly_empty_hallway_at_Central_High_School_in_Little_Rock.tif); Mostly empty hallway at Central High School, Little Rock.
+- `09-hearst-pool.jpg` — [SOURCE] [Mike McBey](https://commons.wikimedia.org/wiki/File:Indoor_pool,_Hearst_Castle_(32062000267).jpg); Indoor pool at Hearst Castle.
+- `10-ymca-pool.jpg` — [SOURCE] [Joe Mabel](https://commons.wikimedia.org/wiki/File:Vancouver_-_Robert_Lee_YMCA_pool_01.jpg); Robert Lee YMCA pool, Vancouver.
+- `11-jerma-hotel-pool.jpg` — [SOURCE] [Anonymous uploader](https://commons.wikimedia.org/wiki/File:Jerma_Hotel_Indoor_Pool_(first_angle).jpg); Jerma Hotel indoor pool.
+- `12-dream-pools-01.jpg` — [SOURCE] [Jared Pike (artist’s official site)](https://www.jaredpike.art/projects/dream-pools/); Dream Pools series.
+- `13-dream-pools-02.jpg` — [SOURCE] [Jared Pike (artist’s official site)](https://www.jaredpike.art/projects/dream-pools/); Dream Pools series.
+- `14-foggy-road.jpg` — [SOURCE] [Dennis Bruijn](https://commons.wikimedia.org/wiki/File:Foggy_Road_(67154193).jpeg); Foggy Road (500px image).
+- `15-driving-through-mist.jpg` — [SOURCE] [Tomasz Zagórski (Unsplash contributor)](https://commons.wikimedia.org/wiki/File:Driving_through_mist_(Unsplash).jpg); Driving through mist.
+- `16-foggy-campus.jpg` — [SOURCE] [Ramesh Lalwani](https://commons.wikimedia.org/wiki/File:Foggy_Morning_in_IIT.jpg); Foggy Morning in IIT.
+- `17-empty-playground.jpg` — [SOURCE] [Ian Paterson](https://commons.wikimedia.org/wiki/File:Empty_playground_-_geograph.org.uk_-_4118218.jpg); Empty playground, Geograph image 4118218.
+- `18-playground-park.jpg` — [SOURCE] [mycurrency.com (uploader credit)](https://commons.wikimedia.org/wiki/File:Empty_Playground_in_a_park.jpg); Empty playground in a park.
+- `19-lone-house.jpg` — [SOURCE] [Mayqel](https://commons.wikimedia.org/wiki/File:Lone_House.jpg); Lone House, Blender render.
+- `20-door-to-nowhere.jpg` — [SOURCE] [Benmckune](https://commons.wikimedia.org/wiki/File:Door_to_Nowhere_Winchester_House_6-5-06.jpg); “Door to Nowhere” at Winchester Mystery House.
+- `21-abandoned-theater.jpg` — [SOURCE] [Noki Va](https://commons.wikimedia.org/wiki/File:Abandoned_Theater_(97702985).jpeg); Abandoned Theater.
+- `22-empty-retail-space.jpg` — [SOURCE] [Wikimedia Commons (uploader credit on source page)](https://commons.wikimedia.org/wiki/File:Empty_Retail_Space.jpg); Empty retail space.
+- `23-historic-rail-platform.jpg` — [SOURCE] [Ben Brooksbank](https://commons.wikimedia.org/wiki/File:Euston_railway_station_geograph-2197358-by-Ben-Brooksbank.jpg); Euston railway station, historic view.
+- `24-empty-airport-terminal.jpg` — [SOURCE] [Matt @ PEK](https://commons.wikimedia.org/wiki/File:Empty_terminal_in_TPE_airport_(4287773502).jpg); Empty terminal in TPE airport.