superforge-scroll

Superforge Scroll — Cinematic Scroll-Scrubbed Worlds

A landing page where scroll drives a camera. It flies through a space — into a building, along a route, across a miniature world — continuously, with no visible cuts. The visuals are pre-rendered AI video; the page just scrubs them by scroll position. This is the technique behind Apple's scroll-through product pages: the camera genuinely moved, scroll only drives time.

What gets produced: a camera plan → N scene stills → N legs → (architecture B only) N−1 connectors → a self-contained scrub engine that plays the chain as one flight.

Three things distinguish a build that works from one that merely renders:

1. The camera is planned before any pixel exists. The still is not a picture of the scene, it is the camera's frame 0. Skip the plan and you are asking a model to invent routes between six unrelated viewpoints. → §2, references/planning.md
2. Seams must be frame-identical. Every chained clip starts from the actual rendered last frame of the previous one, never from a fresh render of the same subject. → §6
3. The backend must be probed, not trusted. A video API can accept your image, ignore your prompt, bill you, and return a frame-locked clip flying the wrong way. → §4, references/providers.md

The scrub engine is self-contained vanilla JS — it builds its own DOM and injects its own CSS into a container you give it — so it drops into plain HTML, Next.js, Vue, Rails, anything. Do not assume a framework. The value here is the plan, the seam method, and the backend contract, not the frontend.

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1. Interview — ask what you cannot sensibly default

The subject is the user's to state. Ask it as an open question in plain prose, never a fabricated multiple-choice list of industries — a made-up list biases them and reads as you deciding their business for them. Reserve structured choices for the genuinely enumerable, lower-stakes decisions, and signal that "other" is available.