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First and last frame transition with BACH 1.0 Pro

Give BACH an opening and closing image and direct the motion between them for reveals, before/after clips and seamless scene changes.

BACH (Video Rebirth)VideoRuleStack original

Written for BACH 1.0 Pro (first/last frame, i2v) · Updated 2026-10-18

Note: Review and test before use. Provided as is, without warranty. See Terms.

Start on the first frame: [describe image 1, e.g. an empty concrete loft in morning light]. End exactly on the last frame: [describe image 2, e.g. the same loft furnished as a warm reading room at dusk].

Between them: [the physical change and how it happens, e.g. furniture slides in from the edges, plants grow along the window, light shifts from cool morning to warm dusk]. Camera: [move, e.g. one continuous slow push-in from the doorway]. Pace: [e.g. gentle start, most change in the middle, settle for the last second]. Sound: [ambience that evolves, e.g. quiet room tone becoming soft rain and a crackling fireplace].

Replace everything in [square brackets] with your own details.

Settings & parameters

• API task: "i2v" with an opening and/or closing image (public URLs)
• 5 to 16 seconds; match both frames' aspect ratio and camera angle for a clean transition
• Set a seed to iterate on wording without changing the take randomly

Variations

• Product before/after: worn sneaker to restored sneaker on the same turntable.
• Opening frame only: let BACH continue the scene from a single still.

Tips

• Describe the connecting motion, not just the two images; the model needs to know how the change happens.
• Keep lighting direction consistent across the two frames unless the change of light is the point.