Is the Causeway 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), 116 KB: 1,508 triangles, 4,524 vertices and 11 materials, modelled in metres at 30 m × 6.4 m × 9.9 m.

Can I animate Causeway?

It ships as a static mesh. Its 10 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 Causeway 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

Causeway

A low-poly Aztec lake causeway segment for the Aztec Temple City kit. A battered stone embankment carries a white plaster road between low parapets, cut at mid-span by a canoe channel spanned by a timber drawbridge under four red banners, with wooden pilings along the waterline.

Original GLB116 KB Poster

Left rail: colours and the 5 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: 1,508
Vertices: 4,524
Meshes · materials: 11 · 11
Size (W × H × D): 30 m × 6.4 m × 9.9 m
File: GLB · 116 KB
Animation: Static
Style: Low-poly
Collection: Aztec Temple City

Palette · named materials

stone grey — embankment (base)#757e8a
stone grey dark — waterline course and bridge abutments (earth)#525860
stone grey light — parapets, copings and newels (trim)#a3a5a8
warm white — plaster road (base)#f2ede2
turquoise — painted stripe under the parapets (accent)#31c4b8
jade — carved plaques and abutment panels at the default carvingColour (accent)#389475
feather red — banners (accent)#c32222
dark wood — drawbridge, banner poles and pilings (trim)#3d2a1c

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/aztec-temple-city-causeway/f61a2f7950/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:

Causeway for the Aztec Temple City 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 Aztec Temple City kit (Low-poly style, flat-lowpoly direction): A city on a lake with stepped pyramids. Use ONLY the kit palette, by name: stone grey #757e8a, turquoise #31c4b8, feather red #c32222, jade #389475, stone grey dark #525860, turquoise dark #22877e, stone grey light #a3a5a8, turquoise light #6dd5cc, 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 `carvingColour` (0–1, default 0.5) for the kit's "Carving colour" 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 scenes
three-check PASS · glb-lint PASS

Make your own with 1DesignTool →

Named parts · 10

Causeway
Embankment
Waterline course
Bridge abutments
Carved plaques
Road
Parapets
Pilings
Banners
Drawbridge

Note: Size: 30.1 m long (X) × 9.9 m wide (Z) × 2.3 m to the road surface, 6.4 m to the banner tops. The road runs along X, so the front (+Z) is the long flank with the drawbridge at its centre. The bottom (the lake bed) rests on y = 0 and the origin is at the bottom centre. Both ends are cut square, so segments butt end to end. The GLB has 1,508 triangles in 11 meshes, is static and has no animation clip. Every material is named exactly after a kit palette colour (8 of the 12; turquoise light, turquoise dark, mid grey and soot black are unused). The exporter writes one material per mesh, so some names repeat: recolour by name. carvingColour (the kit "Carving colour" setting) picks the colour of the carved plaques and abutment panels in five steps: stone grey light, turquoise, jade (default), feather red, warm white. length, roadWidth, deckHeight and bridgeSpan reshape the causeway. The params are baked into the GLB at their defaults and only change the geometry when the scene is rebuilt in the viewer. Only the defaults were rendered and checked. glb-lint: 0 errors, plus 5 expected warnings: 11 per-mesh materials against the direction default of 10, though only 8 distinct names are used; duplicate per-mesh materials; non-indexed flat-shaded geometry; overlapping boxes from parts that nest into the embankment; and a 6.4 m height against the direction's 1 m reference, which is correct for a structure. plan-check rejects only the hyphenated library part ids, because its regex allows no hyphen. The same plan with the slug de-hyphenated passes. three-check and the GLB reload keep all 10 ids. The pale green ground disc in the preview is viewer staging and is not in the GLB.

About the Causeway 3D model

Causeway is a free low-poly 3D model from the Aztec Temple City set. It measures 30 m × 6.4 m × 9.9 m (W × H × D) at real-world scale and is built from 1,508 triangles across 11 meshes, with 10 named parts. Download the 116 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Causeway 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), 116 KB: 1,508 triangles, 4,524 vertices and 11 materials, modelled in metres at 30 m × 6.4 m × 9.9 m.
Can I animate Causeway?: It ships as a static mesh. Its 10 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 Causeway 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.