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Background Swap: Office Interview → Beach Sunset

Use Gemini Omni's conversational editing to swap a video's background from a corporate office to a tropical beach at sunset while preserving the subject.

object-swap 16:9 6s Conversational edit #background-swap#editing#conversational#omni-feature

Prompt

Take the input video and replace the background entirely. Keep the subject (a person
speaking to camera) untouched — preserve their face, clothing, posture, micro-expressions,
and hand gestures. Replace the office wall behind them with a tropical beach at sunset:
golden sand, gentle waves, palm trees swaying slightly in a light breeze, soft orange
sky with scattered clouds. Match the original lighting direction on the subject (key
light from upper-left). Add subtle rim light from the sunset behind. Do not modify the
subject's audio.

What this prompt does

This is a flagship Gemini Omni feature: conversational editing — modifying an existing video using natural language while preserving subject continuity. Unlike chained “generate-from-scratch” loops, the model keeps the subject’s identity stable across edits.

Best use case

  • Remote work / interview videos when your office is messy
  • Real estate agents wanting consistent backgrounds across listings
  • Talking-head explainer videos with seasonal background variations
  • Travel-brand testimonials filmed in studio

How to tweak

  • Background swap: “office → beach” → “studio → snowy cabin” / “white wall → bookshop” / “bedroom → spaceship”
  • Lighting cue: explicitly match original key-light direction (Gemini Omni uses this to keep skin tones natural)
  • Preserve list: be explicit about what NOT to change (“preserve face, clothing, posture”)
  • Add atmosphere: include “subtle particles” (dust, snow, leaves) for depth

Notes

  • This prompt requires an input video — you can’t use it for from-scratch generation. Open Gemini Omni’s edit mode.
  • “Preserve their face, clothing, posture, micro-expressions” is the magic incantation; without it, the subject can drift.
  • “Do not modify the subject’s audio” is critical or Gemini Omni may regenerate the soundtrack.
  • This feature is Gemini Omni Flash exclusive (as of 2026-05-19 launch).