Nano Banana AI绘图玩法教程，全网疯传的Nano Banana 提示词

最近，Google 的 Nano Banana 在圈子里突然就火了，几乎重新定义了图像编辑的工作流。不过，很多人还不清楚：提示词到底该怎么写，才能真正用好它的“多轮细化+角色一致性”这个杀手锏？下面这份清单整理的常见 Prompt 思路（以英文为主，配合翻译工具就能上手），希望能帮你少走弯路。

先给个核心结论（综合官方与媒体/社区实测）：

：多轮迭代、主体/角色一致性、两图融合、文字可控渲染。
：精细到像素级的裁剪/定比有时不够顺手，建议在生成阶段就把构图/留白说清楚。
：光源方向、色温、焦距一致性比什么都重要。

一、分镜与角色一致

适合上传人物或虚拟形象后，直接拉出多场景分镜。下面这几个 Prompt 可以作为起点：

1. Transform the uploaded portrait into a collectible character figurine. Place a branded box behind (with the character image), a side monitor showing a Blender modeling viewport, and a round plastic base. PVC finish, indoor studio, realistic lighting, cinematic tone, preserve facial identity.
2. Keep the same character. Scene 1: subway platform, cool-blue ambience, back rim light; chest-level camera, medium shot.
3. Same identity, coffee shop close-up, shallow depth of field (bokeh), warm golden-hour light; hands holding a paper cup with subtle steam; maintain hairstyle.
4. Same character, office at night, glass reflections, city-lights bokeh, classic three-point lighting, medium-wide.
5. Same character, warehouse with volumetric light rays through windows; dust motes, slightly desaturated cinematic look.
6. Storyboard (6 frames): hero intro → establishing shot → hands close-up → over-the-shoulder UI → product hero → end card. Preserve identity and wardrobe across frames.
7. Change pose to a forward-walking action; slight motion blur on legs; facial details intact.
8. Rainy street, wet asphalt reflections, neon signage; keep eye color and freckles.
9. Neutral studio packshot background; soft top light, fill card from camera left; neutral expression.
10. Shot list for unboxing (8 frames): box on table → hands open → figure removed → detail macros → turntable spin → final hero; maintain product scale and branding.

二、电商合成/商品上景

电商场景的核心是光源、反射和阴影的一致性。试试这些：

1. Merge image1 (product) with image2 (modern kitchen). Place on marble countertop, realistic reflections + shadows; ~5000K color temp, gentle vignette.
2. Cosmetics bottle on acrylic pedestal, seamless paper backdrop; right-side softbox; subtle gradient background; controlled speculars.
3. Sneakers on concrete block, low-angle hero shot, studio rim light, faint atmospheric haze.
4. Smartphone floating exploded view: separate screen, mid-frame, camera module; dark studio, managed glossy reflections.
5. Watch macro, 90° top-down, soft diffused light; brushed metal visible; dial text anti-aliased.
6. A/B variants: keep layout identical; swap only background material (wood / stainless / terrazzo); product color constant.
7. Lifestyle placement: living-room sofa; daylight from window (camera left); product on side-table; white balance matched.
8. Promo trio within one session: front / 45° / top; consistent brand palette and shadows.

三、人像妆造/服饰替换，保持身份

保持脸部特征不变，只改发型、服装或配饰：

1. Preserve face identity; change hairstyle to retro bob; thin eyeliner; soft retouch while keeping skin pores; realistic flyaway strands.
2. Outfit swap to streetwear (oversized hoodie + cargo pants); neutral studio background; soft Rembrandt pattern.
3. Add sunglasses with subtle reflections; eyes faintly visible through tint.
4. Formal portrait, key at 45°, fill −1EV; seamless #EAEAEA background; color-accurate skin tone.
5. Outdoor candid, overcast sky as a giant softbox; slight film grain; keep freckles/moles.
6. ID headshot: straight-on, neutral expression; flat even light; neutral background; exact facial geometry maintained.

（注：此案例来源于果壳网，作为演示——因为我本人是男性，cos不了暴走萝莉?）

四、像摄影师那样说话

用摄影术语描述光影和氛围，效果往往更精准：

1. Film noir: hard key from high angle, deep shadows, a practical lamp in the back, light smoke for volume.
2. Golden-hour backlight: rim light on hair, subtle flare streaks, warm highlights ~5600K.
3. Top-down softbox + negative fill on both sides shaping the face; subtle catchlights.
4. High-key beauty: near-white backdrop, low contrast, controlled speculars.
5. Rain reflections: wet-down street, neon glow, long-exposure light trails.
6. Product hero: flagged highlights, gradient card for polished metal, tight base reflection.

五、材质与质感

描述材质时，要抓住关键视觉特征：

1. PVC plastic: slightly translucent edges, smooth specular roll-off, no micro-scratches.
2. Anodized aluminum: fine linear brushing, soft anisotropic highlights.
3. Matte ceramic: soft diffuse, micro-pitting visible only in macro.
4. Brushed stainless with subtle fingerprints near buttons, realistic.
5. Frosted glass bottle: internal light scatter; bright meniscus line on the liquid.

六、文字/海报

官方强调对含文本图像做过专项优化，适合海报、Logo、封面等：

1. Poster: bold headline “AI VIDEO STUDIO”, small-caps subheadline; clean sans serif; centered layout; hero product at bottom-right; strong grid with optical margin alignment.
2. Minimal event flyer: big date “09·10”, venue in a small line below; keep text sharp and aligned.
3. App mock poster: phone frame with screen UI; headline 5-6 words; badge “NEW”.
4. Brand logo lockup on dark background; subtle glow; high legibility; no distortion.
5. YouTube thumbnail: big face close-up + 3-5 word punchy title; high contrast; rule of thirds.

七、合成与换景

两图融合 + 多轮细化是亮点；真实感来自光源/焦距/色温一致：

1. Replace background with a snowy mountain; match key from camera right; faint footprints in snow.
2. Museum gallery: polished floor reflections; soft track lighting from ceiling.
3. Night-city rooftop: wind-blown hair; cool key light; warm practicals behind.
4. Product + bathroom marble vanity: soft window light; consistent mirror reflections.
5. Library: warm tungsten practicals; lens fall-off consistent with a 50mm look.
6. Declutter a desk: keep laptop and mug; fill missing areas with plausible textures.

八、镜头语言/构图

用镜头参数控制构图：

1. 35mm equivalent, eye-level, medium shot, rule of thirds.
2. 85mm portrait, shallow DOF, strong background separation.
3. Top-down flat-lay, grid-aligned objects, tidy spacing.
4. Low-angle hero, leading lines converging to subject.
5. Tilt-shift miniature, thin focus plane across subject.

九、特效与氛围

氛围细节能大幅提升沉浸感：

1. Light fog + god rays from a window; particles only visible against backlight.
2. Fine film grain, minimal chromatic aberration, letterboxed.
3. Rain streaks + surface ripples on puddles; reflections preserved.
4. Fireflies / bokeh spheres floating; depth-based size variation.
5. Confetti burst, shallow DOF; motion blur only on confetti.

十、多轮对话脚本（官方推荐）

以下是三个实测好用的多轮脚本模板，直接可用：

1. Round 1: Upload the portrait; place the same person on a sunlit café terrace; warm golden-hour, shallow DOF, cinematic.
2. Round 2: Keep identity; add a laptop with a code editor on screen + a steaming cup; cool the white balance slightly.
3. Round 3: Tighten to a medium shot; brighten catchlights; add gentle film grain.

1. Round 1: Front hero on a neutral backdrop; soft top light; clean shadows.
2. Round 2: Add a 45° view; match exposure and shadow direction.
3. Round 3: Add a top view; assemble a three-panel layout with consistent margins.

1. Round 1: Turn the subject into a PVC figure on a round base; indoor studio; filmic tone.
2. Round 2: Add a branded box behind + a monitor showing a Blender viewport.
3. Round 3: Refine hair/finger edges; ensure smooth specular highlights.

十一、n8n 集成字段模板（可直接复用）

如果你用 n8n 做自动化工作流，这个 JSON 模板可以直接粘贴使用：

{
  "prompt": "Turn the uploaded portrait into a collectible character figurine on a round plastic base; branded box behind; monitor shows a Blender viewport; PVC look; indoor studio; realistic lighting; cinematic tone; keep identity.",
  "style_notes": "cinematic, shallow DOF, subtle film grain",
  "consistency_notes": "fix face geometry, eye color, hairstyle",
  "scene_alt": ["sunlit café terrace", "office at night", "rainy neon street"],
  "product_merge": {
    "bg": "modern kitchen marble countertop",
    "shadows": "match key from camera right",
    "reflections": "controlled, realistic"
  }
}

实操要点（精炼复盘）

• 先场景后细节
  ：用完整句子描述画面，再补充光源/景深/材质；少堆词，多讲“关系”。

• 小步快迭代
  ：每一轮只改 1–2 个变量（比如只调光源方向、只收景深）。

• 一致性三件套
  ：清晰参考图、固定面部/发型/肤色描述、避免一次性大改。

• 规避裁剪痛点
  ：生成时就把构图、留白、版式说清，减少后期硬裁需求。