Suggested settings

One marble, one run. A second marble doubles the collision bookkeeping and is where the physics starts to cheat.

Platform notes

• The prompt is a cause-and-effect chain (tips → lifts → spirals → lands), because Sora tracks linked event sequences more faithfully than a bag of simultaneous details.
• The physics is spelled out positively — 'rolls along the tracks with correct momentum, bouncing lightly off wood' — with the forbidden failure ('never passing through it') stated once, as a boundary, not a theme.
• Enhance: end the chain on a sound ('a soft ding'). Sora generates audio, and a designed final sound gives the clip a button that looping viewers will wait for.

Sora Prompt — Marble-Run Physics Playground (Starter)

Prompt

Use this prompt

Starter prompt for Sora — a physics chain where cause and effect carry the whole clip. Not run by us yet; notes below.