Character Swap Video Prompt with Identity Lock
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Character Swap Video Prompt with Identity Lock A detailed video-generation prompt for swapping a character in an existing video while preserving all motion, camera, transitions, and background elements.
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Video Prompt
@Video = master video for ALL motion, timing, transitions, camera, framing and editing.
@Image generation = female identity + black travel outfit.
@Image generation = same female identity + Bangkok beige vacation outfit.
@Image generation = same female identity + Seoul blue/white outfit.
@Image generation = same female identity + Dali grey streetwear outfit.
@Image generation = same female identity + Tokyo white-shirt outfit.
IMPORTANT: The references above are tagged ONCE ONLY. For the rest of this prompt, “Reference Video” and “Image 1-5” refer to those assets.
STRICT CHARACTER TRANSFER
Use the @Video as reference
Replace ONLY the original man in the Reference Video with the SAME WOMAN represented across Image 1-5.
Everything else must remain identical to the Reference Video.
DO NOT recreate the video from scratch.
DO NOT redesign the sequence.
DO NOT change the environment.
DO NOT change the camera.
DO NOT change the transitions.
The final result should look like the original video was filmed with this WOMAN instead of the original man.
REFERENCE PRIORITY
1. Reference Video:
exact motion, timing, choreography, walking speed, gestures, poses, camera movement, framing, character position, character scale, boarding-pass movement, transition timing, transition speed, card stacking, background, lighting, shadows and edit rhythm.
2. Image 1-5:
female identity, face, hairstyle, clothing and accessories only.
The reference images DO NOT control motion.
CHARACTER MOTION TRANSFER
Treat the original man's performance as motion-capture data.
Transfer that exact performance onto the replacement female character.
At every moment preserve:
* exact body trajectory
* exact walking rhythm
* exact foot placement
* exact leg positions
* exact arm positions
* exact hand movements
* exact head movement
* exact posture
* exact prop interaction
* exact pauses
* exact movement speed
* exact position within frame
* exact silhouette scale
Do NOT animate the static poses shown in Image 1-5.
Those images are appearance references only.
The replacement man must perform the original man's movements frame-for-frame.
IDENTITY LOCK
The subject must remain the SAME WOMAN throughout the entire video.
Use Image 1-5 together to understand his consistent identity.
Preserve:
* same facial structure
* same eyes
* same nose
* same lips
* same jawline
* same skin tone
* same black hairstyle
* same realistic male proportions
Only clothing and accessories change between destinations.
Never morph back into the original man.
Do not inherit:
* original man's face
* original man's hairstyle
* original man's body identity
* original man's clothing
No identity blending.
SCENE 1: OPENING
Use the female identity and outfit from @Image generation
Appearance:
black T-shirt,
black trousers,
tan travel backpack,
passport/travel documents.
she performs the original man's exact opening movement.
Keep the original white studio environment completely unchanged.
Preserve the airplane shadow moving across the scene exactly as in the Reference Video:
same timing,
same direction,
same speed,
same size,
same shadow intensity.
At the exact original moment, begin the first boarding-pass transition.
BANGKOK
Use the female appearance and outfit from @Image generation
Beige sleeveless top,
beige shorts,
straw hat,
sandals,
woven shoulder bag,
sunglasses/accessories,
small pink object near his mouth.
The woman must perform the original man's exact walking and posing animation.
Do not use Image 2's static pose as the movement reference.
Copy the Bangkok boarding-pass transition exactly from the Reference Video.
SEOUL
At the exact frame from the Reference Video, the next boarding pass enters and covers/replaces the previous card.
Use the female appearance and outfit from @Image generation
White cap,
white short-sleeve T-shirt,
pink long-sleeve layer,
loose blue jeans,
red shoes,
red crossbody bag,
smartphone.
Preserve the original man's:
walking rhythm,
phone interaction,
body position,
arm movement,
timing,
screen position.
DALI
At the exact original moment, reproduce the next boarding-pass transition.
Use the female appearance and outfit from @Image generation
Oversized grey T-shirt,
dark undershirt,
distressed grey cargo shorts,
black sneakers,
layered necklaces,
large tan shoulder bag.
Again, Image 4 controls appearance only.
The Reference Video controls every movement.
TOKYO
Reproduce the final boarding-pass transition exactly.
Use the female appearance and outfit from @Image generation
White short-sleeve button-up shirt,
black shorts,
white socks,
black shoes,
glasses,
black shoulder bag,
wristwatch.
Follow the original man's exact final choreography, including the arm movement and watch-checking action.
Maintain the Reference Video's exact ending timing and final composition.
TRANSITION LOCK
The boarding-pass transitions must be copied directly from the Reference Video.
Preserve exactly:
* entrance frame
* exit frame
* direction
* speed
* acceleration
* deceleration
* scale
* perspective
* card position
* stacking order
* overlap
* shadows
* transition duration
* rhythm between cards
NO new transitions.
No dissolves.
No morph transitions.
No flashes.
No zoom transitions.
No spinning reinterpretation.
No extra animation.
The cards must behave exactly as they do in the Reference Video.
CAMERA LOCK
Keep the Reference Video camera completely unchanged.
NO:
* zoom in
* zoom out
* crop changes
* reframing
* orbit
* pan changes
* tilt changes
* additional camera movement
* perspective changes
* character size changes
Maintain the exact original vertical framing.
At every frame, the replacement man should occupy approximately the same screen coordinates and scale as the original man.
BACKGROUND LOCK
Keep every non-human element from the Reference Video unchanged.
Preserve:
* white background
* boarding-pass graphics
* typography
* ticket layout
* card colors
* card shadows
* environmental shadows
* visual spacing
Do not generate airports, buildings, landscapes or additional scenery.
ONLY THE HUMAN SUBJECT CHANGES.
MOTION PRIORITY
If there is any conflict between the reference images and the Reference Video:
ALWAYS follow the Reference Video for motion.
Do not make the male character behave differently because of the pose shown in an image.
Image = appearance.
Video = movement.
STYLE
Photorealistic live-action.
Realistic male anatomy.
Natural skin texture.
Real fabric.
Realistic shadows.
Consistent studio lighting.
No CGI appearance.
No illustration.
No anime.
No plastic skin.
No excessive sharpening.
AUDIO
Keep the original Reference Video audio and timing unchanged.
Do not add dialogue.
Do not generate additional voices.
Do not change audio synchronization.
ABSOLUTE FINAL RULE
CHANGE ONLY THE PERSON.
Reference Video controls:
MOTION + CAMERA + TRANSITIONS + TIMING + FRAMING + BACKGROUND + EDITING.
Image 1-5 control:
IDENTITY + OUTFITS + ACCESSORIES.
The output must resemble the exact same original video with the original man seamlessly replaced by this single consistent female character.
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Usage
This prompt is designed for use with creative. Copy the prompt content above and paste it into your preferred AI tool.
For best results, you may customize the placeholders (indicated by square brackets or capital letters) with your specific requirements.
References
- Category: creative Prompts
- Source: https://x.com/Just_sharon7/status/2092617768034247049
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