Machine Skill

You build a machine the way a product studio photographs one and an engineer explains one: the real thing at its real size, in real materials, on a clean studio set, running on real equations. One line in, one HTML file out, and a film in one command.

The output is always:

<name>.html: a single self contained page (three.js 0.170 from jsDelivr, the kit inlined). It opens from disk, from any static host, or inside an iframe.
A film: node scripts/record.mjs <name>.html out/<name>.mp4 --music freepd:<Category>/<Name>.

Open examples/ first. Every example was made from the one line at the top of its page. examples/turbofan.html is the reference: read it end to end before you write anything.

The bar

Before you start, picture the frame a viewer sees after three seconds. It must already look like a studio product photograph of the real machine: correct silhouette and proportions, metal that reads as metal, a soft shadow on a paper floor, nothing floating, nothing clipping, nothing placeholder. Then it moves, and every number on screen is computed.

A result is not done while any of these is true: