Unroll a poster: let the curl travel as the flat sheet grows

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

1. Task and boundary

Unroll one blank poster across a tabletop by guiding its rolled portion away from a held leading edge. The curl itself travels, and flat paper grows in the space it leaves behind. Track the continuous boundary between flat and curved paper so the sheet does not appear from underneath an unrelated moving cylinder.

This original visual plan is untested. Use a loosely rolled sheet with a small flat starter length, without a rigid core or printed information. Exclude a stationary spool, automatic straightening and a complete flattening claim. A small curl may remain at the ending.

2. Authorized first frame

Prepare a photograph or accurate drawing you own or may use. A broad paper roll lies on the right of a table, its single flat leading section extending left. One hand holds that left edge; another rests lightly against the rolled section.

Use an oblique side view showing sheet width, the curved outer layer and its transition onto the table. Leave open tabletop to the right. Keep two existing paper corners and a table seam visible. If the roll is packed so tightly that no layer boundary is readable, use a looser authorized starting arrangement.

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 loose blank paper roll with a flat leading section held at the left edge of a table. Keep the camera, table and that held edge fixed. Use the other original hand to guide the rolled portion slowly toward the right as it unrolls. Let the curved-to-flat boundary travel right with the diminishing curl, leaving more of the same connected sheet lying flat behind it. Preserve the original width and continuous side edges. The curl becomes smaller because existing wrapped paper is laid out, not because a cylinder shrinks independently or the flat section stretches. Keep paper in contact with the tabletop at the moving transition. Stop after a modest extension with a small remaining curl and both hands still in their respective roles. No core, extra sheet, print, cut or rewind.

1. Opening fifth: identify the held edge, visible curl and original flat length.
2. Middle three fifths: compare three positions of the moving transition as flat length increases and the curl diminishes.
3. Final fifth: stop the guiding hand and inspect the continuous small curl still attached to the flat sheet.

5. Inspect the output

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

• The held leading edge stays at the same table location.
• The curl center travels across the table instead of staying on a fixed axle.
• Additional flat length appears behind the moving curved-to-flat boundary.
• Sheet width and both side edges stay continuous, without a second layer emerging independently.
• The remaining curl visibly decreases while still belonging to the same sheet.
• If the transition is covered by the hand throughout, mark the unrolling mechanism inconclusive even when the final flat area is larger.

6. Fix one failure

• The roll stays still: name the traveling curl and retain the fixed leading edge.
• Paper stretches: keep width and surface landmarks stable while material passes through the transition.
• A solid cylinder rolls away: remove the core and preserve visible layered paper continuity.
• The sheet floats above the table: reduce speed and keep the moving transition in tabletop contact.

7. Ending and limits

End with a longer flat section and one smaller curl farther right, still part of the original held sheet.

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

No generated result or paper stiffness measurement is supplied. The plan does not guarantee a perfectly flat poster after release.

The fixed-spool task keeps the hub center stationary while ribbon pays out. Here the sheet has no hub and its shrinking curl translates across the support while laying itself flat.