Queue rails
A low-poly theme-park queue rail section: red-and-white candy-striped posts on bolted base plates, yellow ball finials and two continuous yellow tube rails. It is 3 m long and snaps end to end on a 1 m grid.

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
- 1,744
- Vertices
- 5,232
- Meshes · materials
- 8 · 8
- Size (W × H × D)
- 3.2 m × 1.2 m × 16 cm
- File
- GLB · 130 KB
- Animation
- Static
- Style
- Low-poly
- Collection
- Amusement Park
Palette · named materials
- candy red: post stripes#c32222
- white: post stripes#f4f1ec
- yellow: tube rails and ball finials#eecd2b
- yellow dark: rail collars and post caps#bda00f
- mid grey: base plates and foot collars#7d828c
- soot black: bolt heads#1b1b22
Use it
import { GLTFLoader } from "three/addons/loaders/GLTFLoader.js";
const gltf = await new GLTFLoader().loadAsync(
"https://assets.stoicsoft.com/1designtool/3d/models/amusement-park-queue-rails/9638cc8521/model.glb"
);
scene.add(gltf.scene); // metres, +Y up, front faces +ZHow it was made
The brief given to 1DesignTool's “3D object” template:
Queue rails for the Amusement Park 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 Amusement Park kit (Low-poly style, flat-lowpoly direction): Rides, lights and queues. Use ONLY the kit palette, by name: candy red #c32222, yellow #eecd2b, sky blue #2e67b8, white #f4f1ec, candy red dark #821717, yellow dark #bda00f, candy red light #db5757, yellow light #f0db75, 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 `rideColours` (0–1, default 0.5) for the kit's "Ride colours" setting wherever it makes sense on this part, and keep that id.
- Agent: Claude Code · Claude Opus 5.5 in 1DesignTool
- Generation: 2.45M tokens (95% cached) · ≈ $1.78 at API prices · 5-hour plan +3%
- Direction: Low-poly · family products
- three-check PASS · glb-lint PASS
Named parts · 6
- Queue rails
- Base plates
- Striped posts
- Tube rails
- Rail collars
- Ball finials
Note: Size: 3.16 m long (X) by 1.17 m tall by 0.16 m deep (Z). Posts are 76 mm tubes standing on every metre, with 160 mm square base plates. The handrail centre sits at 1.0 m and the knee rail at 0.5 m, and the ball finials top out at 1.17 m. Snapping: the section is 3 m long on a 1 m grid. The origin is at the snapping end, which is the centre of the first post at x = 0 on y = 0. The run extends along +X to the last post centre at x = 3, and the front faces +Z. Place the next section's origin at x = 3: its first post overlaps this section's last post exactly (identical geometry), and the rail ends hide inside the posts. The exported model has 1,744 triangles in 8 meshes. It is flat-shaded with roughness 0.95 and metalness 0. Every material is named exactly after a kit palette colour, using 6 of the 12. The exporter writes one material slot per mesh, so 'yellow' and 'yellow dark' each appear twice; recolour by name. The model is static, with no animation clip. Params are baked into the GLB at their defaults and only change the model when it is rebuilt in the viewer. 'Ride colours' (rideColours) uses the same bands as the kit's other rides. Below 0.33 the posts have sky blue stripes and yellow rails. Up to 0.66 they have candy red stripes and yellow rails (the default). Above 0.66 they have yellow stripes, with candy red rails and candy red dark collars. Both param extremes passed three-check: all-max gives 2,638 viewer triangles and all-min gives 1,098. glb-lint reports 0 errors and 4 heuristic warnings, all expected: the per-mesh duplicate material names, non-indexed geometry (deliberate flat shading), the stripe bands and bolt heads sharing a part box with their neighbours, and the rails and collars counted as detached because they belong to separate part groups from the posts they pass through. Its verdict reads UNVERIFIED only because no host requirements contract was supplied. Part ids use 'amusementpark.queue_rails.*' rather than 'amusement-park-queue-rails.*' because the kit's part-id format does not allow hyphens.
About the Queue rails 3D model
Queue rails is a free low-poly 3D model from the Amusement Park set. It measures 3.2 m × 1.2 m × 16 cm (W × H × D) at real-world scale and is built from 1,744 triangles across 8 meshes, with 6 named parts. Download the 130 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.
- Is the Queue rails 3D model free for commercial use?
- Yes. It is free under the 1DesignTool 3D library license: use it in personal and commercial work — games, apps, websites, renders, ads and client projects — and modify it as you like, with no credit required. What you can't do is re-sell or re-distribute the file on its own or inside a model pack.
- What file format is it, and how big is it?
- A single binary glTF 2.0 file (.glb), 130 KB: 1,744 triangles, 5,232 vertices and 8 materials, modelled in metres at 3.2 m × 1.2 m × 16 cm.
- Can I animate Queue rails?
- It ships as a static mesh. Its 6 named parts are separate nodes, so you can move or animate each one in your engine.
- Which engines and tools can open it?
- Anything that reads glTF 2.0. three.js, React Three Fiber, Babylon.js, Godot 4 and Blender import the GLB directly; Unity and Unreal Engine load it through their glTF importers. The snippets above show the exact code for three.js, React Three Fiber, Godot and Blender.
- How was the Queue rails 3D model made?
- Claude Code (Claude Opus 5.5) generated it inside 1DesignTool's 3D template from a written brief, then the design kit's checks verified the geometry and the GLB before it was published. You can make your own the same way with 1DesignTool.
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Free under the 1DesignTool 3D library license. Model #13 of 1898.