Rainy-Night Mech-Bike High-Speed Chase

Seedance 2.5Sci-FiActionMechaShot BreakdownTracking ShotRobotRain Scene30s
Written in both timestamp-script and shot-list format: a mech-motorcycle high-speed chase through a rainy night, with the "Physics Directive" broken out as its own paragraph. A model example for laying out an industrial-grade prompt document, complete with the full timeline script attached.

PROMPT · Video Prompt

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[Timestamped Script & Storyboard] [00:00 - 00:08] [High-Speed ​​Dash] — Cutting Through the Wind | Action / Physics Directive: The camera flies in close pursuit, positioned just behind and to the side of the mecha-motorcycle as it races through a downpour. Its wide, rapidly spinning tires kick up massive sheets of water several meters high, while the blue plasma exhaust trail etches a long streak of light against the rainy night. Subtext: Convey a sense of extreme speed to the AI; focus the visual composition on the physical interaction between the rain, reflections on the wet road, and the engine exhaust. [00:09 - 00:16] [Extreme Evasion] — Center of Gravity Shift | Action / Physics Directive: The camera instantly shifts to a high-angle overhead shot. A series of exploding, wrecked vehicles suddenly blocks the path ahead; the mecha-motorcycle leans sharply—almost scraping the ground—as its tires generate dazzling orange sparks from friction, executing a tight "S-curve" to perfectly weave around the burning wreckage. Subtext: Illustrate the shift in the mecha's center of gravity during high-speed movement, highlighting the gravitational feedback and spark effects resulting from extreme tire-to-ground friction. [00:17 - 00:24] [Mid-Air Reconfiguration] — Mechanical Transformation | Action / Physics Directive: The mecha-motorcycle launches off a broken bridge section into the air, with the camera leaping up to track it in a circling shot. While airborne, the motorcycle's shell rapidly flips, deconstructs, and reassembles; the wheels retract into thrusters, and the chassis unfolds to extend steel limbs, instantly transforming from motorcycle mode into a heavy, humanoid combat mecha. Subtext: Showcase the aesthetic of heavy industrial machinery; emphasize the precision interlocking and sense of mass as parts combine, avoiding any "noodle-like" soft-body deformation. [00:25 - 00:30] [Heavy Landing] — A Moment of Power | Action / Physics Directive: The camera rapidly descends to a low-angle, close-up shot looking up at the mecha's face. The humanoid mech drops to one knee, slamming heavily onto the roadway. The impact of its immense tonnage causes the bridge surface to shatter in a spiderweb pattern, while the resulting shockwave instantly clears away the surrounding rain in an expanding ring. The mech slowly lifts its head; a crimson tactical eye-light flares to life, fixing a direct, unblinking stare at the camera. Subtext of the shot: It creates a visually explosive "Superhero Landing," using the shattered pavement and the blast of displaced air to convey the mech's terrifying weight and destructive power to the audience.

✍️ Editor’s Notes

An English timestamped script where every segment carries a little Subtext note telling the model what feeling this shot is going for — something like “Convey a sense of extreme speed to the AI” — which is basically writing the director's intent straight into the prompt, and does a better job of getting the model to grab the emotional priority than just listing actions would, instead of it getting hung up on specific physical details. A mech-bike drifting close to the ground with rain-night lighting plays to the strengths of a model like Seedance 2.5 that supports long-take motion tracking, but the closing “Superhero Landing” impact shot is a real stress test for the physics engine — it's very easy for that to fall apart into a floaty, weightless mess.

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Timeline Script & Shot List

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