Fractal Renderer
A fractal explorer that runs entirely in the browser, on the GPU via WebGPU.
Live: https://fractalrenderer.com
This is an agentically developed project: the code, the shaders and the tests were written by an AI
coding agent. It can probably only be extended the same way, agentically.
Why one big file works
Everything that runs in the browser lives in index.html: markup, styles, script, the WGSL
shaders and the texts of the subpages, about 8,000 lines. A human developer would not organise code
this way and would split it into many files and modules. An AI agent, however, works well with this
structure, for three reasons:
- No build step, one truth. What the tests check is byte for byte what gets deployed. Modules
would need a build step, and a forgotten build would mean testing or shipping stale output.
- Size is not the bottleneck. An agent never reads the file in one piece. It searches with
patterns and edits by exact text anchors, which works for 8,000 lines as well as for 800. Section
headers of the form
// Name, listed in a table of contents at the top of the script, let an
agent without prior context find its way quickly.
- Data at the end. The long legal texts sit at the very end of the script, so searches in the
code stay clean.
License
MIT, see LICENSE. The texts of the imprint and the privacy policy inside index.html are
not covered by it.
