Barn

Specs

Size: 8.7 × 11.1 × 12.5 m
Triangles: 2,524
Draw calls: 1
Moving parts: 3
Knobs: 5
Night lights: 2

Passed the validator: real scale, rests on y = 0, front faces +Z, deterministic.

Use it

Code for the specimen as it is set up above; it follows your knobs.

JavaScript

import { createAsset } from 'https://gaitkit.com/cdn/barn.mjs';

const barn = createAsset();
scene.add(barn);                      // rests on y = 0, front faces +Z

// 'loft_door' pivots on its hinge: -110° to 0° around y
barn.getObjectByName('loft_door').rotation.y = THREE.MathUtils.degToRad(-110);

JSX

import { useMemo } from 'react';
import { createAsset } from 'https://gaitkit.com/cdn/barn.mjs';

export function Barn() {
  const model = useMemo(() => createAsset(), []);
  return <primitive object={model} />;
}

GDScript

# Import barn.glb (download below). Moving parts are separate nodes, pivoted on their hinge.
$Barn/loft_door.rotation_degrees.y = -110

// Import barn.glb with glTFast (com.unity.cloud.gltfast).
transform.Find("loft_door").localEulerAngles = new Vector3(/* y: */ -110, 0, 0);

Prompt

Use the gaitkit MCP server: get_variant({ "id": "barn", "want": "default look" })
then place the result.

# MCP endpoint
https://gaitkit.com/mcp

More in the docs; agents can fetch all of this through MCP.

Knobs

Knob	Type	Values	Default	What it does
`roof`	choice	`gambrel` `gable`	`gambrel`	gambrel (the classic two-pitch barn roof with a tall hayloft) or gable (a simple steep pitched roof, older or prairie barns).
`paint`	choice	`red` `white` `grey` `natural`	`red`	red (classic barn red with white trim), white (dairy barn with green trim), grey (weathered grey boards with a rusty roof), natural (bare brown timber).
`width`	range	6 to 12, step 0.5	`8`	Frontage in metres across X. Depth is 1.3 × width and wall height grows a little with it.
`doors`	range	0 to 1, step 0.05	`0`	How far the two big sliding doors are rolled open along their track. 0 closed, 1 fully open showing the dark interior.
`cupola`	toggle	on / off	`true`	Louvred vent cupola with a little pyramid roof and weathervane on the ridge.

Presets: prairie barn {"roof":"gable","paint":"grey","cupola":false,"width":7} · dairy barn {"paint":"white","width":11} · harvest time {"paint":"red","doors":1}

Files

File	What
barn.glb	GLB, default look · 401 KB
barn.mjs	ES module, every knob live
barn.obj	OBJ, static, no colour
barn-params.json	knob schema, presets, night zones

Licence

Use it in games, apps, renders and client work, commercially and without credit. Do not resell it as an asset or train a 3D generator on it. The full licence.

Tune it

Specs

Use it

Knobs

Files

Licence

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