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Stacked apartments

A narrow low-poly apartment block of staggered, stacked storeys with lit windows, balconies, AC units, a zig-zag fire escape, a neon blade sign and a rooftop water tank and billboard. Part of the Cyberpunk Alley kit.

Original GLB413 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: 4,008
Vertices: 12,024
Meshes · materials: 35 · 35
Size (W × H × D): 8.3 m × 21 m × 8.2 m
File: GLB · 413 KB
Animation: Static
Style: Low-poly
Collection: Cyberpunk Alley

Palette · named materials

base#151619
base#1b1b22
base#3a3c40
trim#090a0b
trim#7d828c
earth#3d2a1c
accent#eecd2b
accent#f2ede2
accent#fcdee8
accent#f994b6
accent#20c6df

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-stacked-apartments/c9dc72be71/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:

Stacked apartments 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. 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: 5.15M tokens (96% cached) · ≈ $3.47 at API prices · 5-hour plan +9%
Direction: Low-poly · family scenes
three-check PASS · glb-lint PASS

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Named parts · 11

Stacked apartments (root)
Ground floor shopfront
Apartment storeys
Windows
Balconies
AC units
Fire escape
Neon signs
Neon strips
Drain pipe
Roof and water tank

Note: Default size about 8.3 m wide (x, fire escape included) × 21.4 m tall (antenna top; roof deck at 15.8 m) × 7.9 m deep (z, blade sign included); the ground-floor footprint is 7 × 6 m. The origin is the bottom centre of that ground-floor footprint, so the fire escape on +X makes the bounding box slightly off-centre. Static model with no animation clip. Lit windows and neon are emissive (KHR_materials_emissive_strength), so they glow in engines that support it. Every material is named exactly after its kit palette colour. The exporter writes one material copy per mesh (35 materials, 11 unique names), so recolour by name rather than by material index. neonColours sets each neon element to cyan or neon pink against a fixed per-element threshold: 0 is all pink, 1 is all cyan, 0.5 is a mix (sign outlines cyan, sign bars pink). The downloaded GLB reflects the default values. glb-lint reports 0 errors; its verdict reads UNVERIFIED only because no requirements contract was supplied. It also gives non-blocking warnings: material count, non-indexed flat-shaded geometry, nested sibling bounds and scale versus the 1 m direction reference. The viewer's darker exposure and ground disc are staging only and are not in the GLB.