案例简介

社区创作者使用 Seedance 2.0 结合 GPT Image 2 角色锁定功能，生成了这段 15 秒的高端奢侈时尚品牌 AI 视频广告。

最终效果

15 秒竖屏（9:16）时尚短片，三幕完整叙事：极特写开场→ 全身走秀展示 → 270° 环绕收尾。视频保持精确的角色一致性，所有镜头中模特的五官、妆容、发型、服饰细节完全匹配。

制作流程

  1. 角色锁定：在 GPT Image 2 中先生成参考角色图像，确保五官、发型、妆容、肤色、身形比例固定
  2. 分镜设计：按三幕结构编写 Seedance 2.0 提示词，明确每个镜头的时间分配（精确到秒）
  3. 风格设定：设定高端奢侈时尚广告的视觉风格——暗灰色摄影棚、黑色镜面地板、紫色与金色轮廓光
  4. 约束规则：添加详细的负面提示词，防止面部变形、服饰偏移、多余肢体等常见 AI 视频问题
  5. 视频生成：在 Seedance 2.0 中上传参考图并粘贴完整提示词，生成 15 秒 720p 视频
  6. 微调优化：根据输出效果调整提示词细节（如鞋跟高度描述、衣物纹理精度），重生成直至满意

完整提示词原文

Duration: 15 seconds
Aspect Ratio: 9:16 Vertical
Reference Character: Use strictly the female character from the reference image. Preserve the exact same identity throughout the entire video, including facial structure, hairstyle, makeup, skin tone, body proportions, outfit, stockings, high heels, accessories, and all clothing details. She must remain the same person wearing the exact same outfit in every shot.

Overall Style
Premium luxury fashion influencer short film with a cool, confident, elegant, and charismatic presence. Dark gray studio with a glossy black mirrored floor, dramatic purple and gold rim lighting, soft beauty key light, realistic skin texture with subtle film grain, cinematic contrast, natural body movement, premium fashion campaign aesthetic.

SCENE 1 | 0–5s | Extreme Close-Up & Eye Contact
Subject: The reference female character.
Action: Begin with an extreme close-up of her face. She looks slightly away before slowly turning her eyes toward the camera. She blinks softly, raises one eyebrow slightly, and gives a subtle confident smile. One hand gently brushes a loose strand of hair behind her ear while she leans slightly toward the camera, maintaining elegant eye contact and effortless confidence.
Background: Soft dark-purple bokeh with shallow depth of field.
Camera: 85mm portrait lens. Ultra-sharp focus on both eyes with realistic catchlights and natural skin texture. Slow cinematic push-in combined with a subtle 15° orbit around her face.
Constraints: Perfect facial consistency. No facial distortion, exaggerated expressions, or duck lips.

SCENE 2 | 5–10s | Seamless Full-Body Reveal
Action: She gracefully sweeps one hand across the lens, creating a seamless transition. The camera smoothly pulls back from the close-up to a full-body view. Wearing high heels, she walks forward with two elegant steps, stops with one foot crossed slightly in front, places one hand on her waist, subtly shifts her weight, rotates into a graceful side profile to showcase the silhouette of her outfit, then turns back to face the camera.
Camera: Seamless transition from an 85mm portrait lens to a 35mm full-body lens. Slightly low-angle while maintaining a premium editorial fashion look. The camera tracks backward smoothly. A subtle fashion photoshoot flash appears the instant she stops.
Audio: Clear high-heel footsteps, camera shutter sounds, deep fashionable electronic music.
Constraints: Preserve the outfit exactly as shown in the reference image, including stockings, heels, accessories, lace patterns, seams, and all garment details. Showcase the complete look without lingering excessively on any single body part.

SCENE 3 | 10–15s | Fashion Turnaround & Signature Ending
Action: She performs three elegant fashion poses in sequence (front, side, back) with smooth, confident transitions. The camera performs a stable 270° orbit around her. Her dress, hair, and loose strands move naturally with subtle motion. At the end of the orbit, she quickly turns back toward the camera, takes one confident step forward, leans in slightly, raises one eyebrow, gives a playful half-smile with a gentle wink, then softly touches the camera lens with one fingertip as the screen fades to black.
Camera: Stable 50mm lens with smooth cinematic orbit. The glossy black floor produces subtle reflections. Finish with a fast push-in to a facial close-up with perfect focus locked on both eyes.

Visual Style
Premium luxury fashion campaign
Cinematic influencer aesthetic
Cool, elegant, confident, and sophisticated
Realistic skin texture with subtle film grain
Natural hair simulation and cloth physics
Soft mirrored floor reflections
Smooth cinematic camera movement
Editorial fashion lighting
High-end luxury commercial quality
Photorealistic rendering
8K quality

Negative Prompt
No identity changes, face swapping, outfit changes, clothing drift, lace pattern drift, stocking seam drift, body weight changes, exaggerated proportions, limb deformation, extra arms, extra legs, extra fingers, fused fingers, melted facial features, plastic skin, over-smoothed skin, sliding walk, high-heel glitches, abnormal clothing transparency, wardrobe malfunctions, vulgar poses, focus on intimate body parts, upskirt angles, camera drift, character teleportation, sudden background deformation, excessive slow motion, flickering, subtitles, text, logos, watermarks.

提示词结构解析

部分功能
角色约束锁定参考角色的面部、身材、服饰、配饰等所有细节，确保贯穿全片
三幕分镜极特写→全身走秀→环绕收尾，每幕 5 秒，节奏递进
镜头语言85mm→35mm→50mm 镜头变化，配合推进/拉远/环绕运镜
负面约束30+ 条负面规则覆盖面部、肢体、服饰、相机抖动等常见问题

实操建议

  • 角色参考图质量：GPT Image 2 生成的角色图分辨率越高，Seedance 2.0 的角色锁定效果越好。建议先生成 2K+ 参考图
  • 时间分配：三幕各 5 秒是最均衡的结构。若需突出产品细节，可延长第一幕
  • 镜头过渡：第二幕的「手拂镜头」转场是保持角色连续性的关键——利用前景景物遮挡来自然切换景别
  • 光线设置：紫色+金色轮廓光 + 柔和主光是时尚广告的标配灯光方案，可在其他场景复用
  • 音频设计：提示词中的脚步声、快门声等 SFX 描述能显著提升视频质感，Seedance 2.0 支持同步音效生成