Replace In Video

Swap one on-camera element in an existing video while everything else stays put. Use when the user says "recast this character", "put a different actor in this clip", "swap the product she's holding", "change the shirt he's wearing", "change the car's color", "repaint the jacket", "drop my mascot into this scene", or "replace X but keep the rest". Keeps the original motion, timing, camera, lighting, and audio untouched. For a whole-frame restyle or relight, use edit-video instead.