Seedance 2.5 角色替换变身 电影感展示提示词

Transform the original video by seamlessly replacing the main subject with new characters [@New Character], transitioning exactly at [Specific Triggers or Timestamps]. Transformations: [Trigger 1, e.g., First finger snap / 0:05]: Replace the subject with [Character 1 Description: gender, body type, hairstyle, clothing, accessories, specific style] [@Character1]. [Trigger 2, e.g., Camera pan / 0:12]: Replace the subject with [Character 2 Description: gender, body type, hairstyle, clothing, accessories, specific style] [@Character 2]. [Add additional triggers and characters as needed] Core Execution Rules: Performance: The new characters must perfectly mimic the original subject's exact body movements, physical proportions, hand gestures, facial expressions, and head tracking. Audio & Lip-Sync: Preserve original audio. Characters must accurately lip-sync all spoken dialogue in real-time. Technical Alignment: Maintain the original video's camera movement, focal length, framing, perspective, pacing, and the original background ([Optional: Insert brief 3-word description of original background]).