Is the Fire circle 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), 283 KB: 3,740 triangles, 11,220 vertices and 21 materials, modelled in metres at 3.9 m × 1.2 m × 3.9 m.

Can I animate Fire circle?

It ships as a static mesh. Its 9 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 Fire circle 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

Fire circle

A low-poly Stone Age gathering hearth: a ring of dark stones round a glowing wood fire with a roast on a forked-stick spit, circled by pelt-draped log benches and flat sitting stones, with snow drifts and moss tufts.

Original GLB283 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: 3,740
Vertices: 11,220
Meshes · materials: 21 · 21
Size (W × H × D): 3.9 m × 1.2 m × 3.9 m
File: GLB · 283 KB
Animation: Static
Style: Low-poly
Collection: Stone Age Camp

Palette · named materials

charcoal — hearth and sitting stones (earth)#34383d
mid grey — hearth and sitting stones (earth)#7d828c
soot black — ash bed, charred firewood tips (earth)#1b1b22
hide tan dark — firewood, folded hides, seared roast (body)#9a7142
hide tan — pelt (body)#bf9769
hide tan light — pelt, cut log ends (trim)#d2bca2
dark wood — log benches, spit sticks (trim)#3d2a1c
ochre — flames (accent)#bd8728
ochre light — embers, inner flames (accent)#d6a95c
ochre dark — roast, rawhide lashing (accent)#7e5a1b
warm white — flame core, snow drifts and caps (earth)#f2ede2
moss — moss tufts (foliage)#55743e

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/stone-age-camp-fire-circle/ea6c0df5f0/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:

Fire circle for the Stone Age Camp 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 Stone Age Camp kit (Low-poly style, flat-lowpoly direction): Hide tents at the edge of the ice. Use ONLY the kit palette, by name: hide tan #bf9769, ochre #bd8728, charcoal #34383d, moss #55743e, hide tan dark #9a7142, ochre dark #7e5a1b, hide tan light #d2bca2, ochre light #d6a95c, 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 `climateIceOrForest` (0–1, default 0.5) for the kit's "Climate (ice or forest)" 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 · 9

Fire circle
Hearth stones
Ash bed
Firewood
Flames
Roasting spit
Seats
Hide pelts
Snow or moss

Note: Size at the defaults: 3.91 m wide (x) × 3.93 m deep (z) × 1.18 m tall (y) to the spit's fork tips. The hearth ring is about 1.7 m across, and the seats stand about 1.55 m from the centre. Seats spread round the back and sides, leaving the front (+Z) open. The origin is at the bottom centre, and everything rests on y = 0, with flat-clipped stone, log and stick feet. The GLB has 3,740 triangles in 21 meshes. It is static, with no animation clip, and has flat-baked non-indexed normals. All 12 kit colours are used, and every material is named exactly after its palette colour. The flame and ember materials (ochre, ochre light, warm white) have a mild emissive set to their own colour; other copies of those names are not emissive. The exporter writes one material per mesh, so names repeat; recolour by name. climateIceOrForest (the kit's 'Climate (ice or forest)'): toward 0, snow drifts bank the gaps between and behind the seats, and the bare sitting stones carry snow caps. Toward 1, the snow is gone and moss tufts hug the hearth stones and seat feet. The default 0.5 shows both. hearthRadius moves the stone ring, the spit sticks and the seat circle together. seatCount (2–6) alternates pelt-draped log benches and pairs of sitting stones. fireSize scales the flames, and the spit rises to clear them; at 0 the flames part is omitted and only embers remain. Params are baked into the GLB at their defaults and change the geometry only when the scene is rebuilt in the viewer. Only the defaults were rendered and checked. glb-lint reports 0 errors and 4 expected heuristic warnings: more than 10 materials, non-indexed flat shading, overlapping sibling boxes (stones and embers nest in the ash bed), and duplicate material names. Its verdict reads UNVERIFIED only because no requirements contract was supplied. 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 9 ids. Viewer-only staging (ground, sun rig, exposure 0.62) is not in the GLB.

About the Fire circle 3D model

Fire circle is a free low-poly 3D model from the Stone Age Camp set. It measures 3.9 m × 1.2 m × 3.9 m (W × H × D) at real-world scale and is built from 3,740 triangles across 21 meshes, with 9 named parts. Download the 283 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Fire circle 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), 283 KB: 3,740 triangles, 11,220 vertices and 21 materials, modelled in metres at 3.9 m × 1.2 m × 3.9 m.
Can I animate Fire circle?: It ships as a static mesh. Its 9 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 Fire circle 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.