ピストンクランク機構アニメーション

“Use Three.js with the existing @remotion/three and @react-three/fiber dependencies to animate a piston-and-crank cutaway. Include the connecting rod, crankshaft, flywheel, transparent cylinder, head, spark plug, and a simple coded combustion glow. Compute piston height and rod angle from crank rotation; show ignition once per 720-degree four-stroke cycle. Project label leaders from the same 3D camera so they stay attached during camera moves. Render a 32-second vertical video at 1080×1920 and 30 fps with Remotion, using no image assets or new dependencies. Review stills for ring orientation, framing, and label overlap before export.”