Keep a draining vortex and falling liquid level visible together

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

1. Task and boundary

Show water draining from a transparent vessel through a visible bottom outlet. A small central funnel-shaped depression develops in the rotating surface while the surrounding liquid level falls. Keep the depression, sidewall waterline and outlet stream visible together so a decorative spiral cannot substitute for the draining event.

Request a qualitative illustration with modest drainage. The outlet is already open in the first frame. Exclude a plug-removal subtask, complete emptying or a claim that every draining vessel naturally forms this requested vortex.

2. Authorized first frame

Use a photograph or drawing you own or have permission to use. Choose a transparent vessel with a broad exposed surface and a narrow bottom outlet. Show water already leaving that outlet as a short continuous stream, plus a slight surface dimple.

Use an elevated oblique angle that reveals the surface and one clear sidewall waterline. Keep the outlet in the same frame. Add no painted spiral; two existing small floating specks may help track the intended circulation. Preserve fixed vessel edges for level comparison.

3. Use the generator

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

4. Prompt and timing

Start from my authorized image of a transparent vessel with an open bottom outlet, a visible outflow and a slightly dimpled water surface. Lock the camera, vessel and lighting. Continue gentle clockwise surface circulation as viewed from above, forming a small funnel-shaped depression near the center. Keep the surrounding liquid connected while its sidewall level gradually falls and water continues through the real outlet. Follow the same floating specks along the rotating surface without turning them into a painted spiral. Keep the depression shallow enough to inspect. Do not tunnel through the vessel wall, replace water with a rigid cone, change the container shape, add pouring, cut or zoom. End before emptying, with water still surrounding the depression.

1. Opening fifth: locate the existing outflow, shallow dimple and sidewall level against fixed vessel edges.
2. Middle three fifths: compare the rotating surface depression and falling sidewall level at several moments while checking outlet continuity.
3. Final fifth: hold the continuing drainage view. Timing shares are editorial guidance, not a vortex-formation or emptying-time calculation.

5. Inspect the output

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

• The vessel outline and background remain fixed as the sidewall waterline descends.
• The central depression changes as part of the liquid surface, without becoming a solid object.
• Surface specks move around the depression while retaining readable individual paths.
• The outlet stream remains connected to the actual bottom opening during the shown level fall.
• Liquid remains around and below the shallow depression; the vessel is not suddenly empty.
• If reflections conceal the waterline or outlet, mark the corresponding level or drainage check inconclusive; rotating highlights alone cannot pass it.

6. Fix one failure

• Only a spiral graphic rotates: remove decorative swirl wording and track existing surface specks.
• Water level stays fixed: request less overall action and make one sidewall boundary clearer.
• A rigid cone appears: specify a depression in a connected liquid surface.
• Drainage teleports through the wall: keep the actual outlet exposed and simplify vessel geometry.

7. Ending and limits

End with a lower visible waterline, a shallow rotating depression and continued outflow from the same outlet.

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

No H3 generation or fluid experiment is supplied. The view cannot validate flow rate, angular momentum, vortex depth or mass balance. Fractions of the shot are creative staging choices, and no model-performance result is claimed.

The pour task follows incoming liquid and a rising receiving level. The connected-vessels task couples two reservoirs through a tube. Here one vessel drains while a rotating surface depression remains visible; changing its color alone is not a different task.