Race day at the launch ramp

Walk the hardstand, launch ramps, floating piers and a buoyed race course built from the full 68 model powerboat pack.

About

A working powerboat marina on one 72 m plot: launch apron with two concrete 8 m ramps and finger docks, trailer rows, two five module floating piers with a fuel dock and a four post lift, and a buoyed race course under a start gantry.

Placed: all 68 pack designs. 16 boats from offshore catamaran to stand-up watercraft, 5 rigged variants including the bowrider on its trailer and the beached RIB, 3 trailers, the launch ramp and dock modules, both starter environments, and every prop from cleats and ropes to extinguishers and navigation lights.

Moves: the outboard on its stand and the three race course boats run on always (propeller and tilt loops that read at a distance). Everything else with clips rides the proximity default and plays within 3 m. Static: the beached RIB and the covered bowrider are posed off, since a cover and a beached hull should never animate.

Not placed: nothing. Every design in the pack is in the scene at least once.

Every piece here is a published model from the pack, placed by hand. Walk with the keys or touch, and approach a piece to see it move if it has animation. Colliders, navigation and gameplay are yours to add.

Points of interest

Launch apron
Start on the hardstand between two 8 m concrete ramps. Trailers queue here, rinse stations sit at the top, and the fleet is straight ahead.
Concrete 8 m launch ramp (Speedboats, Powerboat Racing and Marina)
Trailers and tow rigs
Tandem, single axle and watercraft trailers stage hulls above the waterline. The bowrider on its trailer shows the full tow rig as it ships.
Tandem-axle boat trailer (Speedboats, Powerboat Racing and Marina)
Down the ramp
Walk between the finger docks flanking the east ramp. Cleats, ropes and fenders dress both edges, and the beached RIB rests by the waterline.
Narrow ramp-side finger dock (Speedboats, Powerboat Racing and Marina)
West pier
Two five module floating piers moor the offshore racers. Catamaran to port and monohull to starboard, each fendered off with ropes on the cleats.
Floating dock 2 by 4 m (Speedboats, Powerboat Racing and Marina)
Fuel and lift
The fuel dock and the four post lift frame serve the fleet mid marina. Hose reels, extinguishers and first aid boxes sit where the crew reaches them.
Floating fuel dock (Speedboats, Powerboat Racing and Marina)
Start gantry
Under the start gantry the course opens south. Jet sprint boats idle on running propeller loops, ready to run the buoy line.
Race start pontoon and gantry (Speedboats, Powerboat Racing and Marina)
The race line
The full start line environment with turn buoys and safety markers laying out the circuit, and the spectator boundary holding the crowd back.
Powerboat race start line (Speedboats, Powerboat Racing and Marina)
Race control
The committee canopy and notice board run the meeting. Life jacket racks, fuel tanks and the parts display close the loop back at the apron.
Race committee canopy (Speedboats, Powerboat Racing and Marina)

Use with an AI agent

Copy this prompt into your AI chat to rebuild the layout, then describe what to change.

Rebuild the "Race day at the launch ramp" demo scene from the Speedboats, Powerboat Racing and Marina pack in my project.

Layout (JSON, every placement with its CDN URL): https://3dassets.dev/api/v1/demos/powerboat-racing-and-launch-ramp
Pack manifest: https://3dassets.dev/api/v1/packs/powerboat-racing-and-launch-ramp
Demo page: https://3dassets.dev/demos/powerboat-racing-and-launch-ramp

- 208 placements of 68 models; units are metres, +Y up, rotation is yaw in degrees about +Y
- Spawn at (0, 0, -27) facing 0 degrees; eye height 1.6 m
- Licence: CC0 1.0 Universal (no attribution required)
- Loading: three.js GLTFLoader, one load per distinct model, cloned per placement; no decoders required

Also available as JSON or Markdown, and via the MCP server.

Common questions

How do I use Race day at the launch ramp with my AI development tools?

Press "Copy for AI agent" above and paste the prompt into Claude Code, Cursor, Codex, GitHub Copilot, ChatGPT or any other coding assistant. The prompt carries the direct CDN URL, the real-world size, the licence and the loading notes, so the assistant can fetch the scene and place it in your project without you writing the loader yourself. For a permanent connection, add the 3DAssets.dev MCP server to your tool with one command (for Claude Code: claude mcp add --transport http 3dassets https://3dassets.dev/mcp) and the assistant can then search the whole catalogue, fetch files and read the usage snippets on its own.

MCP server setup Guide for AI agents

How do I get started?

Walk the scene here with the keys or touch to see how the pack fits together. To build it yourself, download the pack with the button, then copy the "Copy for AI agent" prompt: it links the layout JSON, which lists every placement with its position, rotation and CDN URL, so an assistant connected to the MCP server can rebuild the scene in your engine and change it to order.

MCP server setup

Which game engines and tools can I use Race day at the launch ramp with?

Anything that reads glTF, which today means all of the major ones: three.js and React Three Fiber on the web, Godot 4, Unity, Unreal Engine 5, Blender and the model-viewer web component. Every model in the scene is a self-contained binary glTF (.glb) with textures embedded, so each is one file to import and no plugin, converter or decoder to install first.

How do I import this scene into Unity, Godot, Unreal or Blender?

Unity: install the glTFast package (com.unity.cloud.gltfast) from the Package Manager, drop the .glb into Assets and drag the prefab in, or load it at runtime from the CDN URL. Godot 4: copy the file into the project folder and the editor imports it as a scene you can instantiate. Unreal Engine 5: File > Import with the built-in glTF importer, which converts the axes for you. Blender: File > Import > glTF 2.0. Units are metres with +Y up in the file, and every importer above handles the conversion to its own axes automatically.

Can I use Race day at the launch ramp in a commercial game, and do I need to credit anyone?

Yes to commercial use and no to credit. Every scene on 3DAssets.dev is released under CC0 1.0 Universal, which places it in the public domain: use it in a paid game, an app, a film or a client project, modify it, redistribute it, and put nothing in the credits. A link back is welcome but it is entirely your choice.

CC0 licence text

Can I load it from the CDN instead of downloading it?

Yes. The pack behind it has a permanent URL on cdn.3dassets.dev that is CORS-enabled and never changes content, so you can pass it straight to GLTFLoader, glTFast or model-viewer in production and cache it as hard as you like. Downloading is only needed for engines that import from disk.

Is the demo itself a file I can download?

No, and it does not need to be. A demo is a layout of the pack's published models composed in your browser from the CDN, so there is no extra file to fetch. Download the pack for the models, and take the layout JSON linked above for the placements: together they are the whole scene, and an AI agent can rebuild it from those two links.

Can I change the scene, or add gameplay to it?

Yes. The layout is plain data in metres, so move, add or remove placements freely in your own engine. Colliders, navigation and gameplay are yours to add: the demo shows what the pack looks like assembled, and your game decides how it plays.

Models in this demo

Powerboat launch ramp and docks (Speedboats, Powerboat Racing and Marina)

Boat on trailer at the launch ramp, a dock line, offshore boat moored alongside and marina fittings. Water is intentionally omitted so submerged geometry can be inspected.

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