Is the Triumphal arch 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), 392 KB: 5,348 triangles, 16,044 vertices and 18 materials, modelled in metres at 31 m × 26 m × 12 m.

Can I animate Triumphal arch?

It ships as a static mesh. Its 12 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 Triumphal arch 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

Triumphal arch

A low-poly Roman triumphal arch in marble: a tall central arch between two lower side arches, free-standing columns under a broken-forward entablature, captive statues, a red-and-bronze inscription attic and a bronze four-horse quadriga on top.

Original GLB392 KB Poster

Left rail: colours and the 3 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: 5,348
Vertices: 16,044
Meshes · materials: 18 · 18
Size (W × H × D): 31 m × 26 m × 12 m
File: GLB · 392 KB
Animation: Static
Style: Low-poly
Collection: Roman Forum

Palette · named materials

marble white — arch block, attic, cornice (body)#f4f1ec
marble white dark — podium, pedestals, imposts, architrave, attic cornice, relief panels (base)#d7cebc
marble white light — columns, pilasters, archivolts, keystones, roundels, statues (trim)#f9f8f6
imperial red — inscription panel field (accent)#c32222
bronze — inscription frame and letter bars, quadriga (metal)#916430
mid grey — podium step (base)#7d828c

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/roman-forum-triumphal-arch/e3ec3e451e/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:

Triumphal arch for the Roman Forum 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 Roman Forum kit (Low-poly style, flat-lowpoly direction): The civic heart of an imperial city. Use ONLY the kit palette, by name: marble white #f4f1ec, terracotta #be5937, imperial red #c32222, bronze #916430, marble white dark #d7cebc, terracotta dark #823d26, marble white light #f9f8f6, terracotta light #d08971, 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 `intactOrRuined` (0–1, default 0.5) for the kit's "Intact or ruined" 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 · 12

Triumphal arch
Stepped podium
Arch piers and vaults
Archivolts and pilasters
Columns and pedestals
Entablature and cornice
Attic storey
Inscription panel
Captive statues
Quadriga plinth
Bronze quadriga
Fallen blocks

Note: Size: 25 m wide arch block (27.2 m across the podium step) × 12 m deep including the free-standing columns and podium × 21.2 m to the attic cornice, 25.9 m to the charioteer's raised arm. The central arch is 6.6 m wide and 11.8 m high; the side arches are 3.4 × 6.8 m. Origin is at the bottom centre, the podium rests on y = 0, the front faces +Z (front and back are dressed alike). The GLB has 5,348 triangles in 18 meshes and is static with no animation clip; three-check's 5,638-triangle figure includes the viewer's staging ground, which is not exported. Every material is named exactly after a kit palette colour (6 of the 12 are used); the exporter writes one material per mesh, so a colour name can repeat — recolour by name. The inscription is abstract bronze bars, not text. intactOrRuined (kit 'Intact or ruined'): 0 is pristine; fallen blocks appear beside the podium from 0.45 (two at the default); the quadriga is removed from 0.55; the attic loses its top in seeded steps and the quadriga plinth goes from 0.65; attic statues drop out from 0.7; the outer column shafts break from 0.8. centralSpan widens the central arch; bays switches between a three-bay and a single-bay arch. Params are baked into the GLB at their defaults and change geometry only when the scene is rebuilt in the viewer; only the defaults were rendered and checked. glb-lint: 0 errors and 6 expected warnings (duplicate same-named materials from per-mesh export, deliberately non-indexed flat facets, nested trim boxes, the quadriga stacked on the attic across part groups, and a 26 m height against the direction's 1 m reference). plan-check rejects only the hyphenated library part ids (its regex allows no hyphen); the same plan with the slug de-hyphenated passes, and three-check and the GLB reload keep all 12 ids.

About the Triumphal arch 3D model

Triumphal arch is a free low-poly 3D model from the Roman Forum set. It measures 31 m × 26 m × 12 m (W × H × D) at real-world scale and is built from 5,348 triangles across 18 meshes, with 12 named parts. Download the 392 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Triumphal arch 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), 392 KB: 5,348 triangles, 16,044 vertices and 18 materials, modelled in metres at 31 m × 26 m × 12 m.
Can I animate Triumphal arch?: It ships as a static mesh. Its 12 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 Triumphal arch 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.