Is the Basilica 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), 447 KB: 6,048 triangles, 18,144 vertices and 26 materials, modelled in metres at 38 m × 19 m × 22 m.

Can I animate Basilica?

It ships as a static mesh. Its 8 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 Basilica 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

Basilica

A low-poly Roman civic basilica on a stepped marble podium: a colonnade with a red frieze surrounds a tall clerestory nave under terracotta roofs, with a pedimented entrance porch on the long front. A built-in slider takes it from intact to ruined, from fallen roof bays and bare trusses to broken columns.

Original GLB447 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: 6,048
Vertices: 18,144
Meshes · materials: 26 · 26
Size (W × H × D): 38 m × 19 m × 22 m
File: GLB · 447 KB
Animation: Static
Style: Low-poly
Collection: Roman Forum

Palette · named materials

marble white — column shafts, architrave, podium steps, porch pediment, fallen drums#f4f1ec
marble white dark — nave walls, gable pediments, porch attic, bottom podium step, tribunal dais#d7cebc
marble white light — column bases and capitals, cornices, door frames, window sills#f9f8f6
imperial red — friezes, tympana, porch attic panel#c32222
terracotta — aisle, nave and porch roof tiles#be5937
terracotta light — tile ribs#d08971
terracotta dark — ridge caps and eave edges#823d26
bronze — door leaves#916430
soot black — clerestory windows and door openings#1b1b22
mid grey — nave floor inlay#7d828c
dark wood — bare roof trusses on fallen bays (ruined state only)#3d2a1c

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-basilica/0e95760369/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:

Basilica 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 · 8

Basilica
Stepped podium
Colonnade
Entablature
Aisle roof
Nave and clerestory
Nave roof
Entrance porch

Note: Size: the podium is 38.0 m long (x) by 22.0 m deep (z) and 1.2 m high, with three steps all round. The colonnade stands 6.4 m tall on a 34 m by 18 m column line. The nave walls rise to 15 m and the nave roof ridge to 18.72 m. A real forum basilica (Basilica Julia was about 101 m by 49 m) is larger; this is a kit-scaled civic hall that keeps believable column and storey heights. The porch faces +Z, and the origin is at the bottom centre, resting on y = 0. The exported model has 6,048 triangles in 26 meshes (merged per part and colour) and no animation clip. Normals are baked flat (non-indexed). Every material is named exactly after its kit palette colour; 11 of the 12 kit colours are used (warm white is not). The exporter writes one material per mesh, so the same colour name appears on several materials: recolour by name. The GLB is baked at the defaults, which means the half-ruined state: at intactOrRuined 0.5 the west end has lost its aisle roof, most of its columns (drums lie beside the stumps) and two nave roof bays, which leave dark wood trusses. Params change geometry only when the scene is rebuilt in the viewer. intactOrRuined runs from fully intact (0, nothing broken) to a shell of stumps and broken clerestory walls (1); damage spreads from the west (-x) end, and the porch columns hold out longest. ruinSeed picks a different deterministic collapse pattern. length sets the colonnade length and its even column count, so the porch stays on the axis. naveHeight raises the clerestory. The param extremes were checked by reading the geometry limits, not by a capture. glb-lint: 0 errors and 5 heuristic warnings: duplicate materials (from the per-mesh materials), unindexed geometry (flat shading on purpose), sibling overlap (podium tiers and capitals nest on purpose), scale (compared with the direction's 1 m reference) and its standing 'no requirements contract' UNVERIFIED verdict. three-check passes 24 of 24 checks; its triangle figure differs because it measures the live viewer scene. plan-check passes except for its part-id regex, which rejects the hyphens that this library's slug-based ids need; the same plan with the slug de-hyphenated passes.

About the Basilica 3D model

Basilica is a free low-poly 3D model from the Roman Forum set. It measures 38 m × 19 m × 22 m (W × H × D) at real-world scale and is built from 6,048 triangles across 26 meshes, with 8 named parts. Download the 447 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Basilica 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), 447 KB: 6,048 triangles, 18,144 vertices and 26 materials, modelled in metres at 38 m × 19 m × 22 m.
Can I animate Basilica?: It ships as a static mesh. Its 8 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 Basilica 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.