Footbridge
A pedestrian bridge that spans a road along X with its deck 6 m up (about 5 m clear underneath), a landing tower at each end and two-flight stairs running down along the road in opposite directions. Steel truss, concrete or timber, with an optional roof; lamps along the deck glow at night. The road passes under it along Z.
- Size
- 22.1 × 9.4 × 23.8 m
- Triangles
- 2,356
- Kit
- City Street
Tune it
4 knobs: Span, Style, Roof, Paint.
Specs
- Size
- 22.1 × 9.4 × 23.8 m width × height × depth
- Triangles
- 2,356 of 6,000
- Draw calls
- 1 one vertex-colour material
- Knobs
- 4 3 presets
- Night lights
- 1 lamp
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.
import { createAsset } from 'https://gaitkit.com/cdn/footbridge.mjs';
const footbridge = createAsset();
scene.add(footbridge); // rests on y = 0, front faces +Zimport { useMemo } from 'react';
import { createAsset } from 'https://gaitkit.com/cdn/footbridge.mjs';
export function Footbridge() {
const model = useMemo(() => createAsset(), []);
return <primitive object={model} />;
}# Import footbridge.glb (download below). It is a static mesh, one material per colour.
add_child(preload("res://footbridge.glb").instantiate())// Import footbridge.glb with glTFast (com.unity.cloud.gltfast).
// Drop it in the scene: 1 unit = 1 metre, +Z is its front.Use the gaitkit MCP server: get_variant({ "id": "footbridge", "want": "default look" })
then place the result.
# MCP endpoint
https://gaitkit.com/mcpKnobs
| Knob | Type | Values | Default | What it does |
|---|---|---|---|---|
span | range | 10 to 24, step 1 | 16 | Clear span between the two landing towers in metres: 10 crosses a two-lane street, 16 a four-lane road, 24 a boulevard. Each landing adds 3 m and each staircase reaches about 11 m along the road. |
style | choice | steel concrete wooden | steel | steel (painted Warren truss sides, round columns, open steel stairs), concrete (deep box girder with solid parapets, square piers), wooden (timber beams, cross-braced railings, park or campus bridge). |
roof | toggle | on / off | false | Covered walkway: a curved canopy on steel, a flat slab on concrete, a gable roof on timber, with lights under it. |
paint | choice | teal blue red yellow grey | teal | Accent colour for the steelwork, handrails and roof edge: teal, blue, red, yellow, grey. |
Presets: highway overpass {"span":24,"style":"concrete","roof":true,"paint":"grey"} · park crossing {"span":12,"style":"wooden","roof":true,"paint":"red"} · station skywalk {"span":18,"style":"steel","roof":true,"paint":"blue"}
Files
| File | What |
|---|---|
| footbridge.glb | GLB, default look · 174 KB |
| footbridge.mjs | ES module, every knob live |
| footbridge.obj | OBJ, static, no colour |
| footbridge-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.