Step onto one higher tread before bringing the trailing foot up

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

1. Task and boundary

Show a person moving from the floor onto one broad step. The leading shoe first reaches and stays on the higher tread. The body then rises while that contact remains, and the trailing foot leaves the lower floor to join it. Track the contact sequence and pelvis height together. Two shoes ending on a platform do not prove that the ascent happened in order.

Use a modest, ordinary step in an illustrative scene, with enough tread area for both feet. There is no jump, repeated stair run or performance target. The higher surface supports the leading foot during the ascent; it is not a bar to clear and leave behind. This is an untested visual brief, not an assessment of strength, balance or suitable step height for a person.

2. Authorized first frame

Provide an authorized full-body photograph or drawing of a consenting adult facing one stable, broad step. Use a side view with a slight front offset so both shoes, the near tread edge and the lower floor are visible. Start with both feet on the lower floor, the intended leading foot nearer the camera. Keep the waist or pelvis region readable above the legs.

Show the platform’s full riser and enough of the top surface to judge where the leading shoe lands. Leave headroom for the body to rise without camera reframing. Choose plain clothing that does not hide the knees or ankles. A fixed background line and floor marks let you compare body height with the unchanged step rather than guessing from the camera framing.

3. Use the generator

Open the current image-to-video generator in a mode accepting your authorized first frame. Paste the complete prompt, check the available settings and cost estimate, then submit only when ready. This page supplies text; it does not upload an image or start a generation.

4. Prompt and timing

Begin from my authorized full-body image of the same adult standing on the lower floor before one broad fixed step. Lock the camera, step and floor. Lift the foot nearer the camera and place its full shoe sole onto the higher tread. Keep the original trailing foot on the lower floor during this placement. With the leading shoe remaining planted on the tread, move the body upward and forward over that support; let the leading knee become less bent as the pelvis rises. Then bring the original trailing foot off the lower floor and onto the higher tread beside the first shoe. Finish upright with both feet on the higher surface. Preserve the two legs, shoe identities and step geometry. Do not jump, lift both feet together, let the leading shoe float during the rise or pass a foot through the riser. No cut, camera lift or disappearing platform.

Opening: identify the lower floor, higher tread, leading shoe and starting pelvis height.
Support change: inspect the leading sole landing before the body rises, then follow that planted contact during the rise.
Ending: follow the trailing foot from the lower floor onto the tread and confirm that the final stance is higher than the opening.

These beats are author suggestions, not exact model timing guarantees. Adapt their proportions to the clip length actually available.

5. Inspect the output

After inspecting your own output, record a time or frame, visible observation and pass, fail or inconclusive judgment for each condition. A convincing ending alone does not verify the preceding action.

The leading shoe lands on the actual top tread rather than on the vertical riser.
The trailing foot remains on the lower floor during initial leading-foot placement.
The leading sole stays in contact as the body rises and the knee becomes less bent.
The pelvis rises relative to the fixed step and background instead of the camera moving.
The trailing foot joins on the upper tread, leaving both original shoes visibly supported there.
If overlap hides a sole contact or the instant the trailing foot leaves, mark that phase inconclusive.

6. Fix one failure

Both feet jump onto the platform: specify the early leading-foot landing and separate it from body rise.
The leading foot hovers while the body rises: hold its sole against the same tread patch.
The body stretches upward: preserve body proportions and show the change through leg posture.
The trailing foot passes through the riser: keep the near edge visible and give that foot its own lifting beat.
The camera rises with the person: anchor the background and leave adequate headroom in the first frame.

7. Ending and limits

End upright with both feet supported on the unchanged upper tread and the pelvis visibly higher than at the start.

Save your own generated result through the available result controls, together with the authorized input, exact prompt, settings and inspection notes.

No generated result, force reading or real-world step trial is supplied. Contact and posture can suggest a support transition visually, but they cannot verify load distribution, physical capability or safety. Do not report a measured weight transfer from these images.

One side step and close: lead foot lands before the follower moves provides a useful contact-order comparison, while Side-view sit to stand: follow the support points follows a body rise from existing support. This task adds a higher tread that must retain the leading shoe during ascent. It ends above the starting floor; crossing an obstruction and landing at the original height would miss the required change.