Is the Back office 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), 432 KB: 5,304 triangles, 15,912 vertices and 71 materials, modelled in metres at 5.4 m × 3.3 m × 4.5 m.

Can I animate Back office?

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 Back office 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

Back office

A low-poly cutaway of the boss's back office behind a hidden 1920s jazz club: a pedestal desk with a green banker's lamp, candlestick telephone, open ledger and cash, a velvet wingback chair, a black safe standing open on cash and gold bars, a filing cabinet, a coat stand with a fedora, and stacked bootleg liquor crates.

Original GLB432 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: 5,304
Vertices: 15,912
Meshes · materials: 71 · 71
Size (W × H × D): 5.4 m × 3.3 m × 4.5 m
File: GLB · 432 KB
Animation: Static
Style: Low-poly
Collection: Speakeasy

Palette · named materials

black#151619
gold#d0a225
emerald#248f59
velvet red#c32222
black dark#090a0b
gold dark#8f7019
black light#3a3c40
gold light#debd63
soot black#1b1b22
warm white#f2ede2
mid grey#7d828c
dark wood#3d2a1c

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/speakeasy-back-office/f0bc240147/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:

Back office for the Speakeasy 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 Speakeasy kit (Low-poly style, flat-lowpoly direction): A hidden jazz club in the 1920s. Use ONLY the kit palette, by name: black #151619, gold #d0a225, emerald #248f59, velvet red #c32222, black dark #090a0b, gold dark #8f7019, black light #3a3c40, gold light #debd63, 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 `luxuryLevel` (0–1, default 0.5) for the kit's "Luxury level" 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

Back office
Plank floor and rug
Panelled walls
Ceiling beams
Desk with lamp, phone and ledger
Wingback and guest chairs
Safe with gold bars
Filing cabinet
Coat stand and fedora
Liquor crates
Door to the club
Painting, clock and lights

Note: Size at the defaults: the room is 5.2 m wide (x) by 4.4 m deep (z). The 0.12 m floor slab carries walls that rise to 3.02 m, and two open timber beams top out at 3.28 m. Outside pilaster capitals and wall caps stand a few centimetres proud, so the bounds are about 5.35 × 3.28 × 4.5 m. It is a cutaway: the front (+Z) is open and there is no ceiling skin, so the interior reads from above. The desk is 1.7 × 0.9 m with its top at 0.89 m. The safe is 0.85 m wide and 1.42 m tall, with its door modelled 76° open. The door to the club in the right (+X) wall is 0.9 × 2.15 m, closed, with a peep slot on both faces. The origin is at the bottom centre and the slab rests on y = 0. The GLB has 5,304 triangles in 71 meshes (merged per part and palette colour) and no animation clip. Every material is named exactly after its kit palette colour (all 12 are used), so one material name appears once per part. 'gold light' carries a mild emissive for lamp tubes, bulbs and the painted moon. Params are baked at export: the GLB is the default build. luxuryLevel sets the rug's gold border width, the desk's brass edge band (plus inlay strips above 0.3), the picture frame width and the number of gold bars in the safe (3–8), and adds brass sconces above 0.5. Over the full ranges (4.6–6.4 m wide, 1–6 crates, safe closed to 89° open) the model stays between about 4.7k and 5.9k triangles. three-check's budget line also counts the viewer's staging ground, which is not exported. plan-check's part-id regex rejects the hyphenated slug ids the library requires, so the plan was validated on a de-hyphenated copy (PASS). three-check accepts the hyphenated ids. glb-lint reports 0 errors. Its warnings are expected for this pipeline: per-part material instances, non-indexed flat-shaded geometry, nested trims overlapping, and a scale heuristic tuned for 1 m props.

About the Back office 3D model

Back office is a free low-poly 3D model from the Speakeasy set. It measures 5.4 m × 3.3 m × 4.5 m (W × H × D) at real-world scale and is built from 5,304 triangles across 71 meshes, with 12 named parts. Download the 432 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Back office 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), 432 KB: 5,304 triangles, 15,912 vertices and 71 materials, modelled in metres at 5.4 m × 3.3 m × 4.5 m.
Can I animate Back office?: 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 Back office 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.