Is the Theatre seating 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), 387 KB: 5,308 triangles, 15,924 vertices and 16 materials, modelled in metres at 15 m × 4.3 m × 11 m.

Can I animate Theatre seating?

It ships as a static mesh. Its 7 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 Theatre seating 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

Theatre seating

A low-poly wedge of Greek theatre seating: curved marble tiers split by stair aisles, closed by sloping end walls and a buttressed back wall, with a front row of thrones of honour facing the orchestra.

Original GLB387 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: 5,308
Vertices: 15,924
Meshes · materials: 16 · 16
Size (W × H × D): 15 m × 4.3 m × 11 m
File: GLB · 387 KB
Animation: Static
Style: Low-poly
Collection: Greek Acropolis

Palette · named materials

marble dark — tier bodies and seats, walkway, buttresses, proedria platform (base)#c6bfb9
marble light — seat lips, alternate stair steps, copings, throne seats (trim)#f8f7f7
marble — stair steps, back wall, end walls, throne arms (body)#e8e6e3
mid grey — orchestra kerb (base)#7d828c
soot black — orchestra drain channel (shadow)#1b1b22
aegean blue — painted throne backs (accent)#2e67b8
terracotta — throne cushions (accent)#be5937

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/greek-acropolis-theatre-seating/d0541839d9/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:

Theatre seating for the Greek Acropolis 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 Greek Acropolis kit (Low-poly style, flat-lowpoly direction): White temples on a rocky hill. Use ONLY the kit palette, by name: marble #e8e6e3, aegean blue #2e67b8, olive green #3a883a, terracotta #be5937, marble dark #c6bfb9, aegean blue dark #1f457a, marble light #f8f7f7, aegean blue light #6190d1, 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 `paintedOrBareMarble` (0–1, default 0.5) for the kit's "Painted or bare marble" 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 · 7

Theatre seating
Seat tiers
Stair aisles
Walkway and back wall
Analemma end walls
Proedria platform
Proedria thrones

Note: Size: about 15 m wide × 10 m deep × 4.34 m tall. Eight tiers of 0.4 m rise and 0.8 m depth on a 60° arc start 6 m from the orchestra centre, with a 1.1 m walkway and a 1 m back wall on top. Origin is at the bottom centre, everything rests on y = 0, and the seats face +Z toward the orchestra, which is not included. The GLB has 5,308 triangles in 16 meshes and is static, with no animation clip; three-check's 5,598-triangle figure includes the viewer's staging ground. Every material is named exactly after a kit palette colour (7 of the 12 are used at the default; aegean blue dark is added from 0.7). The exporter writes one material per mesh, so a colour name can repeat; recolour by name. paintedOrBareMarble (kit 'Painted or bare marble'): below 0.2 the stone is bare; from 0.2 the thrones get terracotta cushions, from 0.4 aegean-blue backs, and from 0.7 an aegean-blue band runs along the back wall and the end-wall copings turn aegean blue dark. rows, arcDegrees and aisles rebuild the block. Params are baked into the GLB at their defaults and only change geometry when the scene is rebuilt in the viewer. Only the defaults were rendered and checked. glb-lint: 0 errors, 5 expected warnings (per-mesh duplicate materials and the count over 10, deliberately non-indexed flat facets, nested tier/lip and wall/coping meshes, and a height above the 1 m reference scale). plan-check rejects only the hyphenated library part ids, because its regex allows no hyphen; the same plan with the slug de-hyphenated passes, and three-check and the GLB reload keep all 7 ids.

About the Theatre seating 3D model

Theatre seating is a free low-poly 3D model from the Greek Acropolis set. It measures 15 m × 4.3 m × 11 m (W × H × D) at real-world scale and is built from 5,308 triangles across 16 meshes, with 7 named parts. Download the 387 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Theatre seating 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), 387 KB: 5,308 triangles, 15,924 vertices and 16 materials, modelled in metres at 15 m × 4.3 m × 11 m.
Can I animate Theatre seating?: It ships as a static mesh. Its 7 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 Theatre seating 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.