What a world can do

A world is one module: a Three.js scene class and a small metadata block. It runs inside the SYQEL engine — the engine listens to the music, keeps the palette, owns the renderer; your world builds the place and decides how it moves. The full machine-readable contract lives at /agents.md; this page is the human tour.

Your scene hears the music — properly

Every frame, your world receives the engine's analysis, already calibrated:

Sixteen voices, ordered low to high — each with live amplitude, stereo position, tonality, and an onset flag the moment it strikes. The bass voice can own your biggest, slowest element; the highest voice your smallest, fastest.
The beat — phase, downbeats, tempo, with an honesty score (confidence) so your world never dances to a beat that isn't there.
The arc — a build-up/breakdown signal for tension: thicken the air during the rise, spend it all on the drop.
Instruments, when the listener's setup provides them — kick, snare, hats, bass, vocals — each with its own envelope and identity. Worlds must look complete without them; instruments only add.

Real Three.js, with the heavy lifting done

Full scene graph, standard materials, instancing, procedural canvas textures, GLB models and HDR environments served from SYQEL's CDN. Bloom, ambient occlusion, and a cinematic grade are one-line opt-ins — the engine runs the passes. Palette comes from the host (palColor), so your world automatically wears every SYQEL color scheme.

Built for TVs from the first line

Staged builds let a TV take frames while your world constructs, so transitions never freeze. Detail scaling (scaleCount) keeps particle counts honest on small GPUs. The budgets aren't bureaucracy — they're the measured difference between 57 fps and 25 fps in someone's living room.

The deal: worlds render, nothing else

No network, no storage, no dynamic code, no DOM beyond a canvas for procedural textures. That constraint is what makes a marketplace of third-party worlds safe enough to run on every SYQEL screen — and it's enforced by machines, not promises.