تغيير خلفية وإضاءة الفيديو بـ Omni Flash بدون تغيير الشخص

SOURCE VIDEO LOCK — ABSOLUTE PRIORITY

Use the uploaded SOURCE VIDEO as the immutable master video.

Preserve the original person exactly as they appear in every frame.

IDENTITY AND PERSON LOCK:
Preserve exactly:
- face and facial structure
- facial proportions
- skin texture and skin tone
- hairstyle and hairline
- age
- body shape and proportions
- clothing
- accessories
- hands and fingers
- facial expressions
- eye movement
- head movement
- gestures
- body movement
- posture
- position inside the frame
- original performance

Do NOT regenerate, reinterpret, beautify, retouch, restyle, replace, or reconstruct the person.

MOTION LOCK:
Preserve the exact original chronological motion of the source video.
Do not change timing, speed, gestures, body movement, facial movement, or camera performance.

AUDIO LOCK:
Preserve the complete original audio track exactly.
Preserve the original voice, dialogue, pronunciation, timing, pauses, breathing, emotion, and lip synchronization.
Do not generate or replace any audio.

EDIT ONLY:
Change ONLY:
1. the background/environment
2. the environmental lighting

BACKGROUND:
Replace the existing background with:
[اكتب هنا وصف الخلفية الجديدة]

The new environment must look photorealistic and naturally filmed, not AI-generated.
Match the original camera perspective, camera height, focal length, depth of field, and subject scale.

LIGHTING:
Relight the environment and the person naturally so they belong to the same physical scene.

Use realistic light interaction:
- physically plausible key light
- natural fill light
- subtle rim/separation light when appropriate
- realistic light falloff
- accurate shadows
- realistic contact shadows
- matching light direction
- matching color temperature
- subtle environmental light reflected onto skin and clothing

IMPORTANT:
Lighting may affect the person naturally, but must NOT alter their identity, facial structure, skin texture, clothing, or physical appearance.

COMPOSITING:
Create seamless professional cinematic compositing.
Preserve natural hair edges, skin edges, clothing edges, motion blur, depth of field, and fine details.

No halo around the person.
No cutout appearance.
No glowing edges.
No warped body parts.
No facial changes.
No clothing changes.
No artificial skin smoothing.
No identity drift.
No temporal flickering.
No background flickering.

The person must look like they were physically filmed inside the new environment with the new lighting.

FINAL PRIORITY:
SOURCE PERSON + SOURCE MOTION + SOURCE AUDIO = LOCKED.
BACKGROUND + ENVIRONMENTAL LIGHTING = EDITABLE.
Everything else remains unchanged.