How to animate one person in a photo and leave everyone else still
Tell Vizard Agent which person in the photograph should move and that nothing else may change. It pins the first and last frame of each generated segment back to your original image, measures those frames for drift, and reviews any replacement shot before merging it so a section with good movement is never swapped for one with worse.
What do you type into Vizard Agent?
Write the constraints as a list of things that stay the same. It reads as over-specified and it isn't: each item you leave out is an item that may drift, and drift in a photograph of real people is the thing everyone notices. Faces, clothing, setting and camera angle are what a generator will quietly improve unless you fix them.
Prompt
What does Vizard Agent actually do?
A generated clip drifts furthest at its ends. Pinning both ends of every short segment to the original photograph keeps each one returning to the picture you supplied, so the drift never accumulates across the whole video. Vizard Agent also reviews replacement sections before merging them. In the session behind this article it:
- Examined the photograph and its composition, checked the options for animating a still and picked the approach that held the scene steadiest, for a thirty-second video with one subject moving.
- Turned the image into a first clip with quiet movement and extracted frames to review how steady the scene stayed.
- Tested a shorter clip with its start and end pinned to the original, and measured the first and last frames for any large change.
- Generated several short anchored clips in parallel, joined them under the original audio and reviewed the joins in a single grid.
- Generated a replacement section with clearer movement for the subject, reviewed it before merging, swapped it in and re-mixed the audio in full.
- Smoothed the jumps between the short clips at a fixed duration.
When does this not work well?
Anchoring costs movement. The more strictly each segment is pinned to the photograph, the less anyone in it can do, so a large gesture or a walk across the frame is hard to get without other things drifting too. Long runtimes mean more segments and more chances to drift, and crowded photographs mean more faces to keep still.
Common questions
Can only one person move? Yes. Name them and Vizard Agent keeps the others still.
Will faces stay the same? That is what the anchoring is for. Vizard Agent measures it.
What if a section looks worse? Vizard Agent reviews replacements before merging them.