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 is the short version?
Sometimes a video's structure is exactly right and its subject is wrong. Remaking it with something else in the same shots is a different job from editing: the scenes get rebuilt, and what carries over is the pacing, the sound and the order.
- Go to Vizard Agent and upload the original video.
- Say precisely what should be replaced and with what.
- Say what must survive — the sound effects, the pacing, the length.
What do you need before you start?
The original and a clear substitution. Vizard Agent reads the shots and the audio itself, so it does not need a shot list, but it does need the replacement described precisely enough to generate a consistent reference for it.
- The original video. The one whose structure works.
- The substitution. What goes, what arrives.
- The style. Cartoon, realistic, stylised.
- What to keep. Sound effects, music, pacing.
- The length. Usually the original's.
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.
Prompt
Variants worth knowing:
- Sound kept, music dropped. Or the other way around.
- A reference image supplied. So the replacement looks like yours.
- Scene by scene. Each shot regenerated separately.
What does Vizard Agent actually do?
Here is the order Vizard Agent worked in on a real remake with substituted subjects. The step that keeps the new version coherent is the tenth: it generated reference images of the replacement first and checked them, rather than generating four scenes and hoping they matched.
- Checks the input video and its format, then transcribes and shot-logs it.
- Extracts the frames and the audio track, then reads the contact sheet.
- Analyses the audio elements to see what is music and what is effects.
- Checks the video-edit and generation options and the audio separation tools.
- Checks the available libraries and the image generation options.
- Generates a reference image of the replacement subject and reviews it.
- Generates further references — the subject performing the specific action, and in each colour.
- Reviews every reference image before generating any video.
- Generates all four animated scenes concurrently, extracts frames from each, and reviews every shot individually.
Steps 6 to 8 are what make the four scenes look like one video. Generating each scene independently without a shared reference produces four subtly different subjects, and viewers notice that faster than they notice almost anything else.
What does the result look like?
From the run this page is written from, probed on the delivered file: 1280x720, H.264, 30fps, 22.13 seconds, AAC audio. Widescreen, twenty-two seconds, four regenerated scenes with the substituted subject throughout, carrying the original's sound effects with the music stripped out.
The structure is the original's and nothing else is. That is the trade in this format: you keep the thing that worked — the rhythm, the beats, the sound — and everything visible is built again.
When does this not work well?
Remaking a video means regenerating it, so nothing from the original picture actually survives into the new version. Vizard Agent is honest about that rather than presenting the substitution as a surgical edit to footage you already have.
- This is regeneration, not editing. The new footage is generated, not filmed.
- Complex actions are hard to match. Simple, clear movements reproduce best.
- Consistency needs references. Without them the subject drifts between shots.
- Someone else's video is theirs. Remaking it does not make the structure yours.
- Live-action subjects are the hardest case. Stylised and animated work far better.
How do you fix a result that came back wrong?
Name the shot that is wrong. Vizard Agent keeps the shot log, all the reference images, every generated scene and the separated audio, so one scene can be regenerated against the same references without rebuilding any of the others.
- "Shot three does not match." Regenerated against the approved reference.
- "The music is still there." Re-separated and removed from that section.
- "Make it look more like my drawing." New references built from your image.
How does Vizard Agent compare to doing it yourself?
By hand this means storyboarding the original, generating or animating four replacement scenes, and then fighting to keep the subject looking identical across all of them. The consistency problem is the one that quietly eats the whole afternoon.
| By hand | Vizard Agent | |
|---|---|---|
| Understanding the original | Watch and note the beats | Shot-logged and transcribed |
| Consistency | Regenerate until it matches | References approved first |
| Audio | Separate it manually | Music and effects separated and kept |
| Checking | Watch the assembly | Every shot's frames reviewed |
Common questions
Is the new video generated or edited? Generated. Vizard Agent rebuilds each scene rather than altering the original video's pixels.
How does it keep the subject consistent? By generating and approving reference images first, then building every scene against them.
Can I supply my own reference? Yes. Vizard Agent builds its references from your image so the replacement is the one you mean.
Can I keep the original sound? Yes. Vizard Agent separates the audio, so the effects can stay while the music is removed.
Does the pacing stay the same? Yes, if you ask. Vizard Agent uses the original's structure and timing as the plan.
Why generate references before scenes? Because four scenes generated independently produce four slightly different subjects, and that inconsistency is the first thing a viewer notices. Approving a reference first is what makes the four look like one video.
How long can a remake be? This one ran twenty-two seconds. Longer means more scenes for Vizard Agent to generate.
Does it work with real people? Poorly. Vizard Agent reproduces stylised and animated subjects far more reliably than live action.
Can I remake someone else's video? Its structure is still theirs. Use your own material or something you have rights to.
Can I make several versions with different subjects? Yes, and it gets cheaper after the first. Vizard Agent already has the shot log and the structure, so a second substitution only needs new references and new scenes rather than a fresh analysis.
What kind of original works best? Short, clear and simply staged. Vizard Agent reproduces plain actions in obvious framings far more reliably than complex choreography or shots with several things happening at once.
Can the new version be a different length? Yes, though keeping the original's timing is usually the point. Say so if you want scenes extended or dropped, because Vizard Agent otherwise treats the structure as fixed.
Does Vizard Agent check the finished remake? Yes. It reviews every regenerated shot against the references before delivery.