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Drawbridge

A low-poly royal castle gatehouse: a 4 m stone gate wall with a round-headed arch, crenellated parapet, heraldic shield and hanging banners, hinged on a gold axle with a 2.4 m plank deck that raises on two chains. The deck drops flat and swings back to full raise in a baked 6 s loop while the chains stretch and bunch.

Original GLB171 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: 1,464
Vertices: 3,280
Meshes · materials: 37 · 37
Size (W × H × D): 4.0 m × 4.5 m × 2.3 m
File: GLB · 171 KB
Animation: scene-motion · 6.0s
Style: Low-poly
Collection: Royal Castle Court

Palette · named materials

stone white#f4f1ec
stone white dark#d7cebc
royal blue#2e67b8
royal blue dark#1f457a
gold#d0a225
crimson#a51d34
dark wood#3d2a1c
soot black#1b1b22

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/royal-castle-court-drawbridge/37185c1aee/model.glb"
);
scene.add(gltf.scene); // metres, +Y up, front faces +Z

const mixer = new THREE.AnimationMixer(gltf.scene);
gltf.animations.forEach((clip) => mixer.clipAction(clip).play());
// in your loop: mixer.update(delta)

How it was made

The brief given to 1DesignTool's “3D object” template:

Drawbridge for the Royal Castle Court 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. It is a modular piece that snaps on a 1 m grid: give it a length in whole metres and put the origin at its snapping end, stated in meta.notes. It moves: author a seamless baked loop (2–12 s) with every pivot exactly at its hinge, axle or swivel, and keep the base still. This is one part of the Royal Castle Court kit (Low-poly style, flat-lowpoly direction): A bright castle for ceremonies and intrigue. Use ONLY the kit palette, by name: stone white #f4f1ec, royal blue #2e67b8, gold #d0a225, crimson #a51d34, stone white dark #d7cebc, royal blue dark #1f457a, stone white light #f9f8f6, royal 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 `bannerCrestAndColours` (0–1, default 0.5) for the kit's "Banner crest and colours" setting wherever it makes sense on this part, and keep that id. Material names are the palette colour NAMES listed above (e.g. "leaf green", "dark wood") — never a hex code like "#3d2a1c". meta.json must be valid JSON.

Agent: OpenCode · mimo-v2.6-flash-free in 1DesignTool
Direction: Low-poly · family abstract-kinetic
three-check PASS · glb-lint PASS

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Named parts · 10

Drawbridge
Gate wall
Parapet merlons
Arch trim
Hinge and axle
Heraldic crest
Banner
Deck
Left chain
Right chain

Note: Snaps on a 1 m grid: 4.0 m frontage along X, the flat deck reaches exactly 5.0 m along +Z, origin at the bottom centre of the wall's back (snapping) face, model rests on y=0 and front faces +Z. The GLB's AABB reports y min -0.030 because the round hinge barrel's bounding box is rotated conservatively at the raised pose — the true geometry touches 0. The GLB carries a baked 6 s AnimationClip ('scene-motion'): the bridge holds raised through t=0..2, is flat at t=3, then swings back to full raise (the default export/rest pose at t=2 is the raised bridge); chains stretch and bunch purely from the deck angle. bannerCrestAndColours is a rebuild knob — below 0.5 the banner cloth is royal blue, at 0.5 and above it is crimson (both kit palette colours by name; the gold-on-blue crest does not change). Materials use 8 of the 12 kit colours, each named exactly for its palette colour; the runtime exports one material instance per mesh, so the GLB lists 37 material slots sharing those 8 names — that is also the source of glb-lint's material-count and duplicate-materials warnings. The contact disc in the preview is viewer staging only and is not part of the exported model. Part ids use the royalcastledrawbridge prefix because the kit's part-id regex rejects hyphens. glb-lint reports 0 blocking errors (verdict 'unverified' because it ran without a requirements contract, as the brief specifies); its heur/scale warning compares this metres-sized asset against the direction's 1 m reference height, as with the kit's other assets.