How to remake a video with different subjects in it
Upload the original and tell Vizard Agent what should replace what. Vizard Agent reads the shots and the sound, generates reference images of the new subject, checks them, then regenerates each scene with the replacement in it, keeping the structure and the sound effects you wanted to keep.
What do you type into Vizard Agent?
Say the substitution and the preservation in the same breath. Vizard Agent treats "keep the sound effects, drop the music" as a separate instruction from the visual swap, and stating both is what stops it rebuilding things you were happy with. Describe the replacement precisely enough to generate a consistent reference for it.
Prompt
What does Vizard Agent actually do?
Remaking with a different subject is a different job from editing: the scenes get rebuilt, and what carries over is the pacing, the sound and the order. Scenes generated without a shared reference come out with subtly different subjects, so Vizard Agent builds and checks the references first. In the session behind this article it:
- Checked the input video, transcribed and shot-logged it, and extracted the frames and the audio track.
- Analysed the audio elements to see what was music and what was sound effects.
- Generated a reference image of the replacement subject, then further references of it performing the specific action and in each colour, and reviewed every one before generating any video.
- Generated all four animated scenes concurrently, extracted frames from each and reviewed every shot individually.
- Delivered a 22.13-second, 1280x720 remake with the substituted subject throughout, carrying the original's sound effects with the music stripped out.
When does this not work well?
Remaking a video means regenerating it, so nothing from the original picture survives. Complex actions are hard to match, and simple, clear movements reproduce best. Without references the subject drifts between shots. Live-action subjects are the hardest case, while stylised and animated work far better. And remaking someone else's video doesn't make its structure yours.
Common questions
Is the new video generated or edited? Generated. Vizard Agent rebuilds each scene rather than altering the original video's pixels.
Can I keep the original sound? Yes. Vizard Agent separates the audio, so the effects can stay while the music is removed.
Does it work with real people? Poorly. Vizard Agent reproduces stylised and animated subjects far more reliably than live action.