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Ramp

A low-poly modular highway on-ramp: a 16 m asphalt lane climbing 1.5 m on a smooth grade between pale Jersey barriers, carried on a grey retaining-wall body with a green arrow sign at the top. It snaps end to end with flat road tiles on a 1 m grid.

Ramp 3D model

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
1,360
Vertices
4,056
Meshes · materials
9 · 9
Size (W × H × D)
6.0 m × 4.0 m × 16 m
File
GLB · 112 KB
Animation
Static

Palette · named materials

  • asphalt deck (asphalt)#3b3e45
  • retaining walls (asphalt light)#636569
  • pilasters and sign post (mid grey)#7d828c
  • Jersey barriers (warm white)#f2ede2
  • edge lines, sign border and arrow (line white)#f4f1ec
  • barrier reflectors (cone orange)#ed7e1d
  • sign panel (sign green)#3a883a
  • guardrail posts, country rules only (dark wood)#3d2a1c

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/highway-and-roadworks-ramp/17a614b9e1/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:

Ramp for the Highway and Roadworks 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. This is one part of the Highway and Roadworks kit (Low-poly style, flat-lowpoly direction): Lanes, junctions and cones. Use ONLY the kit palette, by name: asphalt #3b3e45, line white #f4f1ec, cone orange #ed7e1d, sign green #3a883a, asphalt dark #17191c, line white dark #d7cebc, asphalt light #636569, line white light #f9f8f6, 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 `countryRoadRules` (0–1, default 0.5) for the kit's "Country road rules" 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

  • Ramp
  • Fill body and retaining walls
  • Asphalt deck
  • Edge lines
  • Barriers
  • Reflectors
  • Arrow sign

Note: Size: 6 m wide × 16 m long; the deck climbs from 0.10 m to 1.60 m above the ground (1.5 m rise, about 9% at its steepest), barriers stand 0.81 m above the deck and the sign tops out at 4.03 m. Snapping: the origin is the centre of the LOW end at y = 0 and the ramp runs from z = 0 to z = -16, so the low end faces +Z. Length is whole metres and the width is whole metres (6 m for one lane, 10 m for two), so it snaps on a 1 m grid. The deck surface is 0.10 m above the ground at the low end, the height of a flat road tile, and the grade is a smoothstep, so both ends meet level tiles without a kink. The high end is a flat vertical abutment face. The grade is faceted every 1 m (flat-lowpoly). The GLB is baked at the default params: 1360 triangles, 9 meshes, static, no animation clip. Every material is named after its kit palette colour, so you can recolour by name. The exporter writes one material per mesh, so 'mid grey' and 'line white' appear twice. Country road rules (the kit knob): at 0.5 or below the ramp uses highway rules (concrete Jersey barriers with orange delineators, solid edge lines); above 0.5 it switches to country rules (dark-wood posts carrying a steel guardrail, broken edge lines). That changes the barriers part's meshes and adds the 'dark wood' material. The knob is a switch at 0.5, not a blend. length, rise and lanes rebuild the geometry in the viewer only; the GLB carries the defaults. glb-lint: 0 errors, 5 heuristic warnings, all expected: duplicate palette materials, non-indexed flat-shaded geometry, pilasters overlapping the wall they are set into, reflectors seated into the barrier face reported as 'detached', and a height above the direction's 1 m reference because this is a road piece. Plan-check rejects the hyphenated library part ids, because its regex allows no hyphen in the first segment. That is its only complaint: a de-hyphenated copy of the plan passes. three-check and the GLB carry the ids correctly.

About the Ramp 3D model

Ramp is a free low-poly 3D model from the Highway and Roadworks set. It measures 6.0 m × 4.0 m × 16 m (W × H × D) at real-world scale and is built from 1,360 triangles across 9 meshes, with 7 named parts. Download the 112 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Ramp 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), 112 KB: 1,360 triangles, 4,056 vertices and 9 materials, modelled in metres at 6.0 m × 4.0 m × 16 m.
Can I animate Ramp?
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 Ramp 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.

Free under the 1DesignTool 3D library license. Model #2 of 1755.