Is the Signal lights 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), 173 KB: 1,640 triangles, 4,920 vertices and 18 materials, modelled in metres at 1.1 m × 7.6 m × 1.3 m.

Can I animate Signal lights?

It ships as a static mesh. Its 11 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 Signal lights 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.

FREEcommercial use · no sign-up

Signal lights

A low-poly harbour entry signal mast for the Shipping Port kit. A tapered steel mast with hazard collars carries a railed service platform, a back ladder and a yellow-framed black board with three hooded amber and white lamps, topped by a beacon.

Original GLB173 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: 1,640
Vertices: 4,920
Meshes · materials: 18 · 18
Size (W × H × D): 1.1 m × 7.6 m × 1.3 m
File: GLB · 173 KB
Animation: Static
Style: Low-poly
Collection: Shipping Port

Palette · named materials

container colours dark — concrete footing (base)#70685c
steel grey dark — base plate, platform deck, braces, board brackets (trim)#525860
steel grey — mast (body)#757e8a
steel grey light — ladder, anchor bolts, railing below containerColoursAndLogos 0.7 (metal)#a3a5a8
soot black — signal board, lamp bezels and hoods, mast cap, hazard stripes (panel)#1b1b22
yellow — amber lamps, beacon, board border from 0.25, hazard collars from 0.45, railing from 0.7 (accent)#eecd2b
warm white — white lamps (glass)#f2ede2

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/shipping-port-signal-lights/cce0c82cb1/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:

Signal lights for the Shipping Port 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 Shipping Port kit (Low-poly style, flat-lowpoly direction): Containers, cranes and salt air. Use ONLY the kit palette, by name: container colours #988e81, steel grey #757e8a, sea blue #2e67b8, yellow #eecd2b, container colours dark #70685c, steel grey dark #525860, container colours light #b6b3af, steel grey light #a3a5a8, 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 `containerColoursAndLogos` (0–1, default 0.5) for the kit's "Container colours and logos" setting wherever it makes sense on this part, and keep that id.

Agent: Claude Code · Claude Opus 5.5 in 1DesignTool
Direction: Low-poly · family products
three-check PASS · glb-lint PASS

Make your own with 1DesignTool →

Named parts · 11

Signal lights
Concrete footing
Base plate
Mast
Service platform
Railing
Access ladder
Signal board
Lamps
Hoods
Beacon

Note: Size at the defaults: 1.1 m wide (x) × 1.17 m deep (z) × 7.64 m tall to the top of the beacon. The service platform deck is at 4.2 m. The signal board is 0.66 × 1.88 m and faces +Z, and the ladder climbs the -Z side. The origin is at the bottom centre of the mast, and the 0.2 m concrete footing rests on y = 0. The GLB has 1640 triangles in 18 meshes, one mesh per part and colour. It is static and carries no animation clip. Normals are baked flat (non-indexed). Every material is named exactly after the kit palette colour it uses, and 7 of the 12 palette colours appear. The kit palette has no red or green, so the lamps are amber (yellow) and white, alternating from the top. They are flat-coloured, not emissive. A signal mast carries no containers, so containerColoursAndLogos (the kit's 'Container colours and logos') drives the safety paint instead: a yellow board border from 0.25, yellow/black hazard collars on the mast foot from 0.45, and yellow railing from 0.7. mastHeight sets the platform height, and the board and beacon ride on top of it, so the total height runs from about 6.6 m to 9.4 m. lamps sets 2–4 lamps and the board grows to fit them. hoodDepth sets how far the lamp visors project. Params are baked into the GLB at their defaults, and change the geometry only when the scene is rebuilt in the viewer. Only the default build was rendered and checked; the param extremes were not. glb-lint: 0 errors and 6 heuristic warnings, all expected: 18 material slots (one per mesh, sharing 7 palette names), duplicate material names, non-indexed flat shading, overlapping sibling boxes (the mast passes through the platform), 'detached' parts (board, lamps and beacon hang off the mast rather than reaching the ground), and the scale heuristic flagging 7.64 m against a 1 m reference. plan-check rejects only the hyphenated library part ids, because its regex allows no hyphen. The same plan passes with the slug de-hyphenated. three-check and the GLB keep all 11 ids. Two fix rounds: first the board was raised clear of the top rail so the bottom lamp is not hidden, and then the camera framing was widened so the beacon and footing are in frame.

About the Signal lights 3D model

Signal lights is a free low-poly 3D model from the Shipping Port set. It measures 1.1 m × 7.6 m × 1.3 m (W × H × D) at real-world scale and is built from 1,640 triangles across 18 meshes, with 11 named parts. Download the 173 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Signal lights 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), 173 KB: 1,640 triangles, 4,920 vertices and 18 materials, modelled in metres at 1.1 m × 7.6 m × 1.3 m.
Can I animate Signal lights?: It ships as a static mesh. Its 11 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 Signal lights 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.