Gaitkit Open the lab
Castle Bridge, A stone arch bridge carrying a 3.4 m road across a castle moat, as a ready-made 8 m wide diorama tile: 1 to 3 round arches of 3 m span on cutwater piers, low parapets with end posts and lanterns, stone-faced banks and the moat water. Banks are 3.2 m above the moat bed (lower it by 3.2 m to meet your terrain); the road runs along Z, ready to meet the castle-gate drawbridge.
Building · Still

Castle Bridge

A stone arch bridge carrying a 3.4 m road across a castle moat, as a ready-made 8 m wide diorama tile: 1 to 3 round arches of 3 m span on cutwater piers, low parapets with end posts and lanterns, stone-faced banks and the moat water. Banks are 3.2 m above the moat bed (lower it by 3.2 m to meet your terrain); the road runs along Z, ready to meet the castle-gate drawbridge.

Size
8.0 × 5.7 × 12.0 m
Triangles
3,192
Open in the lab Ready for any engine. The download carries the knobs you set here.

Tune it

4 knobs: Arches, Stone, Water, Lanterns.

Specs

Size
8.0 × 5.7 × 12.0 m
width × height × depth
Triangles
3,192
of 6,000
Draw calls
1
one vertex-colour material
Knobs
4
3 presets
Night lights
1
lantern

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/castle-bridge.mjs';

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

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

Knobs

KnobTypeValuesDefaultWhat it does
archesrange1 to 3, step 12Number of 3 m arches. The moat is 4 m wide per arch and the tile is (arches + 1) x 4 m long along Z.
stonechoicelimestone granite sandstone slate redstonelimestoneStone for the whole kit: limestone (pale warm grey, classic), granite (neutral grey), sandstone (warm tan, desert fort), slate (dark blue-grey, grim northern hold), redstone (red-brown). Use the same value on every Castle piece so they match.
waterchoicemoat river drymoatmoat (still green water with reeds), river (clearer blue water), dry (an empty grassy ditch, no water).
lampstoggleon / offtrueIron lanterns on the four end posts of the parapets; they glow at night.

Presets: river crossing {"arches":3,"water":"river","stone":"granite"} · dry ditch {"arches":1,"water":"dry","stone":"sandstone","lamps":false} · moat approach {"arches":2,"water":"moat","stone":"limestone"}

Files

FileWhat
castle-bridge.glbGLB, default look · 427 KB
castle-bridge.mjsES module, every knob live
castle-bridge.objOBJ, static, no colour
castle-bridge-params.jsonknob 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.