Is the Playground 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), 117 KB: 1,044 triangles, 3,132 vertices and 18 materials, modelled in metres at 4.0 m × 2.6 m × 4.0 m.

Can I animate Playground?

It ships as a static mesh. Its 13 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 Playground 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

Playground

A low-poly 4 × 4 m park playground ground tile: a timber-edged sand pit set into grass, holding a green-roofed slide tower with a ladder and a blue slide, a two-seat A-frame swing set and a seesaw. The grass edges are flat so it tiles with the other City Park ground pieces.

Original GLB117 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: 1,044
Vertices: 3,132
Meshes · materials: 18 · 18
Size (W × H × D): 4.0 m × 2.6 m × 4.0 m
File: GLB · 117 KB
Animation: Static
Style: Low-poly
Collection: City Park

Palette · named materials

grass green — grass tile, tower roof (foliage)#3a883a
grass green light — tower side panels, grass tufts (accent)#5db15d
path beige dark — sand safety pad (earth)#bda375
dark wood — sand-pit timber kerb, tower posts and deck, ladder rails, seesaw plank (base)#3d2a1c
pond blue — slide, seesaw seats (accent)#2e67b8
iron black — swing frame, tower grab rails, slide stand, seesaw trestle and handles (trim)#151619
soot black — swing seats (trim)#1b1b22
mid grey — swing chains, ladder rungs (trim)#7d828c

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/city-park-playground/000e48c612/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:

Playground for the City Park 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. Make it a ground piece on an exact 4 × 4 m footprint with flat edges at y = 0 that tile seamlessly with its neighbours in every direction; origin at the tile centre. This is one part of the City Park kit (Low-poly style, flat-lowpoly direction): Green space in the middle of town. Use ONLY the kit palette, by name: grass green #3a883a, path beige #d6c5a9, pond blue #2e67b8, iron black #151619, grass green dark #235223, path beige dark #bda375, grass green light #5db15d, path beige light #ede8de, 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 `season` (0–1, default 0.5) for the kit's "Season" 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 · 13

Playground
Grass tile
Sand safety pad
Pad kerb
Slide tower
Tower roof
Ladder
Slide
Swing frame
Swing chains
Swing seats
Seesaw
Grass tufts

Note: Size: an exact 4.00 × 4.00 m footprint, 2.65 m tall to the roof peak at the defaults. The tower deck is at 1.0 m and the swing beam at 2.1 m. The origin is the tile centre, and the slab bottom rests on y = 0. The grass top at 0.10 m is the edge height on all four sides, and nothing crosses the footprint, so the tile butts against any neighbour in any direction. The front faces +Z: the slide runs toward +Z, the ladder is on the -X side of the tower. The GLB has 1,044 triangles in 17 meshes, is static and has no animation clip. Every material is named exactly after a kit palette colour. The exporter writes one material per mesh, so a colour name can appear on more than one material; recolour by name. 8 of the 12 kit colours are used at the default season. path beige (fallen leaves) and warm white (snow) appear only at other season values, and grass green dark and path beige light are not used. Geometry is non-indexed on purpose so every face stays flat-shaded. 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. season (the kit's 'Season') runs from spring (0) to winter (1). Up to 0.55 there are 22 grass tufts on the grass border, and they thin out to none by 0.8. Fallen leaves gather on the grass border from 0.55, peak around 0.75 to 0.85, and are gone by 0.95. From 0.8, snow covers the roof peak and the swing beam, and snow patches lie on the grass. Leaves, tufts and snow are separate parts that exist only at the season values where they show. glb-lint: 0 errors and 6 heuristic warnings. Two come from the per-mesh export (more than 10 materials, duplicate same-colour materials). One flags non-indexed geometry, which is the deliberate flat shading. One flags overlapping sibling boxes: the pad, kerb and tufts nest in the slab on purpose. One flags the roof as detached, but the tower posts run 8 cm up into it. The last compares the height against a 1 m reference, but 2.65 m is the intended real-world size. plan-check passes except for its part-id regex, which rejects the hyphens in the slug-based ids this library requires; the same plan with the slug de-hyphenated passes. three-check accepts those ids, and all of them survive the GLB reload.

About the Playground 3D model

Playground is a free low-poly 3D model from the City Park set. It measures 4.0 m × 2.6 m × 4.0 m (W × H × D) at real-world scale and is built from 1,044 triangles across 18 meshes, with 13 named parts. Download the 117 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Playground 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), 117 KB: 1,044 triangles, 3,132 vertices and 18 materials, modelled in metres at 4.0 m × 2.6 m × 4.0 m.
Can I animate Playground?: It ships as a static mesh. Its 13 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 Playground 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.