Tilt a plate so one droplet moves and settles

Original, untested video brief. No input image or generated result is supplied.

1. Task and boundary

Tilt a smooth plate slightly so one existing water bead travels down its surface. Then level the plate and let the same bead settle at a new place. Follow the bead relative to two fixed marks on the plate, rather than mistaking a camera move for liquid travel.

This original shot plan is untested. It requests one readable bead on an uncluttered surface. Exclude contact-angle measurement, a guaranteed travel distance, a perfectly dry trail and simultaneous merging with another drop.

2. Authorized first frame

Use a photograph or accurate drawing you own or have permission to use. Show one rounded bead near the high-side end of a small level plate, with the original hand supporting an edge. Include two small stationary surface marks beside its intended route.

Choose a low oblique view that reveals the bead footprint and both plate edges. Leave a broad landing area before the low edge. The hand must be able to change the plate angle without covering the bead or its route.

3. Use the generator

Open the current image-to-video generator in a mode accepting your authorized first frame. Paste the prompt; check settings and cost before submission. Nothing runs automatically.

4. Prompt and timing

Start from my authorized image of one water bead on a level plate with two fixed surface marks and the original supporting hand. Lock the camera and background. Raise one end of the same plate modestly while its other end remains supported. Let the original bead move toward the lower side relative to the plate marks, keeping a connected visible body in contact with the surface. Allow its footprint to change gently during travel. Then lower the raised end slowly until the plate is level and let the bead slow and settle before the edge. Preserve the same liquid bead, plate, marks and hand. Do not teleport the bead, split it into a spray or move the marks with it. Hold the new resting position. No second drop, merger, off-edge fall, camera tracking, instant stop, cut or text.

1. Establish, first fifth: locate the bead between the plate marks and confirm the level start.
2. Tilt and travel, middle three fifths: follow plate angle first, then bead displacement relative to the marks.
3. Level and settle, final fifth: show the plate returning level and the bead resting before the edge.

5. Inspect the output

For each check, record a frame or time, observation and pass, fail or inconclusive judgment.

• The support tilts before the bead makes its main displacement.
• The bead passes the same fixed marks while remaining on the plate.
• Its body remains traceable despite modest footprint changes.
• The plate returns level without the camera following its angle.
• The final bead is separate from the edge and rests at a new surface position.
• If reflections hide the footprint, mark surface contact inconclusive.

6. Fix one failure

• The whole scene tilts: anchor the background and let only the supported plate change angle.
• The bead jumps between marks: shorten the route and preserve intermediate footprints.
• The bead becomes several drops: request one connected body and a gentler tilt.
• The bead falls off: provide more surface beyond the intended stopping region.
• The bead stops instantly: allow visible slowing after the plate levels.

7. Ending and limits

End with a level plate and the same single bead resting at a visibly different location.

Save your result, authorized input, exact prompt, settings and inspection notes.

No H3 result, surface treatment test, friction estimate or fluid simulation is supplied. The proposed stopping beat is a compositional target, not a measured prediction.

The droplet-merging task changes two liquid bodies into one. Here one body moves because its support changes angle, and its count stays unchanged.