# MiniMax H3 iris prompt: shrink the opening with the same overlapping blades

Make the edge of an opening change because its rigid overlapping parts move. This is a mechanical-style shape relationship, rather than dimming a circular area or pulling a flexible bag closed.

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 original front-view illustration contains six broad overlapping blade shapes inside one dark circular housing. Their inner edges form a visible opening. Different muted fills make the six parts traceable; the picture contains no optical brand, text or generated result.

Keep the outer housing and the opening center as fixed references. Trace the visible seams between blades and the smaller inner boundary. Do not use overall brightness as a substitute for observing which solid edges move.

## Steps

1. Count the six blade regions and identify the existing open center in the PNG. A replacement input needs readable overlap seams; a plain ring does not show which parts should move.
2. Request only a modest closure and leave the hole open. Keep focal changes, exposure adjustment and reopening out of the first attempt.
3. When a later result exists, inspect three stages of the inner boundary. Check whether the original solid blades explain the new edge before judging the shot as an attractive transition.

## Acceptance

- The outer ring stays the same size and position, and the opening remains centered.
- The same six blade regions remain traceable with coherent overlaps.
- A smaller hole results from moving blade edges, not an appearing disk, a fade or a warped housing.
- The ending leaves a visible opening and does not introduce a reopen/reset cycle.

## Limits

This is an untested illustrated motion brief. It does not set an f-number, certify an actual aperture mechanism, simulate exposure or prove optical performance.

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