# MiniMax H3 cloth-draping prompt: settle one sheet over a fixed block

Let a sheet already resting on the top of a block settle farther down its front side. Observe the changing contact and occlusion between one flexible sheet and one rigid support.

Original synthetic practice still, not a generated result. No model run has been performed.

Files: first-frame.png (1024×1024 actual first-frame input), first-frame.svg (editable geometric design source; do not upload as if it were PNG), prompt.en.txt / prompt.zh.txt, acceptance.blank.csv (all observations empty), task-definition.json and RIGHTS-REVIEW.txt.

## Generator

Use MiniMax H3 base image-to-video. Turn on Add end frame to expose First Frame, upload first-frame.png only, and leave Last Frame empty. Fast requires a pair and is not covered. Choose only options offered by the current interface; opening it does not submit.

## Starting state

The illustration shows a teal rectangular block on a floor. A coral sheet is supported on its top and a short front flap already hangs over the upper edge. A pale hem and two corner dots make the same sheet traceable.

Fix the block's base and side edge. Track the two cloth corner dots and hem; keep enough of the block visible to distinguish cloth coverage from the block changing shape.

## Steps

1. Locate the support edge and the already hanging flap. Use this initial contact rather than a cloth floating high above the block, which would add a different drop-and-collision task.
2. Request a short settling motion with the back portion remaining supported. Do not combine a complete cover, removal and refolding in the same shot.
3. Compare the hem and the exposed block face at the start, midpoint and end. The newly covered area should be explained by the descending sheet, not a shrinking block.

## Acceptance

- The block's base, height and visible side edge remain fixed.
- The front hem descends from the existing support edge without creating extra fabric.
- Corner dots remain on one continuous sheet and the rear portion stays supported.
- The ending shows more front coverage while part of the original block remains visible.

## Limits

This is visible contact and occlusion planning, not a cloth solver, gravity measurement or textile-material test.

Read prompt.en.txt before submitting. No pass results or output video are included.