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How to learn an OpenStreetMap bake pipeline and pseudo-3D renderer with Pixel Path

Read a commented renderer and map bake pipeline to learn how a real road becomes pixel art.

  • Content
  • Intermediate
  • 45 minutes
  • From the README
  • Any agent

Who it is forA student or developer who wants to learn real-map rendering, pseudo-3D techniques or OpenStreetMap data processing.

The problemPseudo-3D road rendering and OpenStreetMap processing are usually taught in fragments, with few complete working examples to read.

The outcomeA working placeholder route plus notes on how the bake and the renderer fit together, with the credited sources for the projection technique.

What you need first

  • Claude Code
  • Node 18 or newer
  • Network access while baking (Nominatim, OSRM, Overpass, AWS Terrain Tiles, Wikidata)
  • Optional: a RetroDiffusion account with credit for real art, since placeholders cost nothing

Steps

  1. Clone the repo with git clone https://github.com/jonwheatley/pixel-path. (inferred, check the README)
  2. Install the skill with /plugin marketplace add jonwheatley/pixel-path and /plugin install pixel-path@pixel-path in Claude Code.
  3. Bake a short route at the placeholders level, so there is no art cost, and look at the output folder.
  4. Read the commented pseudo-3D renderer and trace how the route data becomes the road on screen.
  5. Check the credits section for Lou's Pseudo 3D Page and Jake Gordon's Javascript Racer before reusing the technique.

Prompt for your agent

In the jonwheatley/pixel-path repo, bake a short placeholders route with the pixel-path skill and explain how the bake pipeline and the pseudo-3D renderer connect. Expected output: a written explanation with file references. Verify that each file named in the explanation exists in the repo.

Caveat. The code is released under MIT, but the baked data folder is a derived OpenStreetMap database that stays under the ODbL if shared publicly.

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