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Overhead walkways

A modular covered steel footbridge for the Cyberpunk Alley street, built in sections that chain end to end. Its grated deck sits 4.5 m up on X-braced steel trestles, with neon strips along the deck edges, rails and eaves, a gabled corrugated canopy with hanging sodium lamps, draped cables and an abstract neon sign.

Original GLB193 KB Poster

Left rail: colours and the 4 knobs the agent wrote into this model — they rebuild the geometry and go into your download. Right rail: looks for the viewer. Drag to orbit, scroll to zoom.

Triangles: 2,438
Vertices: 7,314
Meshes · materials: 23 · 23
Size (W × H × D): 8.0 m × 7.3 m × 2.2 m
File: GLB · 193 KB
Animation: Static
Style: Low-poly
Collection: Cyberpunk Alley

Palette · named materials

black#151619
black dark#090a0b
black light#3a3c40
mid grey#7d828c
neon pink#f994b6
neon pink light#fcdee8
cyan#20c6df
sodium yellow#eecd2b

Use it

import { GLTFLoader } from "three/addons/loaders/GLTFLoader.js";

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/cyberpunk-alley-overhead-walkways/d42ae572ef/model.glb"
);
scene.add(gltf.scene); // metres, +Y up, front faces +Z

How it was made

The brief given to 1DesignTool's “3D object” template:

Overhead walkways for the Cyberpunk Alley kit. Design it as one clear asset at believable real-world scale for that setting (state the size in metres in meta.notes), with its main parts modelled and named, readable at thumbnail size and from every orbit angle. It is a modular piece that snaps on a 1 m grid: give it a length in whole metres and put the origin at its snapping end, stated in meta.notes. This is one part of the Cyberpunk Alley kit (Low-poly style, flat-lowpoly direction): A rain-soaked back street under neon. Use ONLY the kit palette, by name: black #151619, neon pink #f994b6, cyan #20c6df, sodium yellow #eecd2b, black dark #090a0b, neon pink dark #f64c84, black light #3a3c40, neon pink light #fcdee8, soot black #1b1b22, warm white #f2ede2, mid grey #7d828c, dark wood #3d2a1c. Every material's `name` must be exactly the palette colour it uses — the GLB carries these names so the kit recolours as one; an unnamed material fails delivery. Kit knob: expose a param `neonColours` (0–1, default 0.5) for the kit's "Neon colours" setting wherever it makes sense on this part, and keep that id.

Agent: Claude Code · Claude Opus 5.5 in 1DesignTool
Generation: 2.01M tokens (92% cached) · ≈ $2.23 at API prices · 5-hour plan +5%
Direction: Low-poly · family scenes
three-check PASS · glb-lint PASS (0 errors, 6 non-blocking heuristic warnings)

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Named parts · 9

Overhead walkway
Deck
Railings
Support trestles
Canopy
Neon strips
Sodium lamps
Cables and pipe
Neon sign

Note: Static model, about 8.0 m long x 7.27 m high x 2.2 m deep at default params. The deck top is 4.5 m above the street, the walkway is 1.32 m wide between curbs (1.6 m over the stringers), the rails are 1.1 m high and the canopy eaves are about 2.45 m above the deck. Modular, snapping on a 1 m grid: the module length is a whole number of metres (3-12, default 8) along +X. The origin is at the bottom centre of the snapping end (x = 0, z centred, y = 0), and the piece runs from x = 0 to x = length. Deck, rails, eaves, canopy sheets and the pipe span exactly that range, and posts, joists, deck seams and trestle bents sit on half-metre stations, so modules butt together cleanly. The half-thickness end posts on each snapping face pair up into one spliced post when two modules are chained. The front (long side, with the sign) faces +Z and the model rests on y = 0; the ground disc is staging only and is not in the GLB. Params: neonColours (0-1) sets the pink/cyan mix of the neon strips and sign: 0 = all cyan, 1 = all pink, 0.5 = an even interleave. length adds trestles and canopy trusses as it grows (a third trestle from 9 m). deckHeight raises the deck, and cableSag sets how far the under-deck cables droop. All four rebuild the geometry. Every material is named exactly after the Cyberpunk Alley palette colour it uses; the neon and sodium lamps are emissive on those same named materials. Flat shading is baked into the geometry as face normals, so it survives export. Part ids use the slug without hyphens (cyberpunkalleyoverheadwalkways) because the kit's part-id grammar only allows lowercase letters, digits, underscores and dots. The exporter clones materials per mesh, so the GLB has 23 material slots, all using the 8 palette names. glb-lint's warnings are expected for this build method: material count, duplicate materials, non-indexed flat-shaded geometry, sibling overlap, lamps/cables/sign touching parts in other groups, and scale against a 1 m reference. The GLB has no animation clips.