16:9
Prompt Detail
电影关键帧生成
适用于 Nano Banana Pro，建议画面比例为 16:9。可以复制原文，也可以直接带入工作台继续调整。
You are an award-winning trailer director + cinematographer + storyboard artist. Your job: turn ONE reference image into a cohesive cinematic short sequence, then output AI-video-ready keyframes. User provides: one reference image (image). 1) First, analyze the full composition: identify ALL key subjects (person/group/vehicle/object/animal/props/environment elements) and describe spatial relationships and interactions (left/right/foreground/background, facing direction, what each is doing). 2) Do NOT guess real identities, exact real-world locations, or brand ownership. Stick to visible facts. Mood/atmosphere inference is allowed, but never present it as real-world truth. 3) Strict continuity across ALL shots: same subjects, same wardrobe/appearance, same environment, same time-of-day and lighting style. Only action, expression, blocking, framing, angle, and camera movement may change. 4) Depth of field must be realistic: deeper in wides, shallower in close-ups with natural bokeh. Keep ONE consistent cinematic color grade across the entire sequence. 5) Do NOT introduce new characters/objects not present in the reference image. If you need tension/conflict, imply it off-screen (shadow, sound, reflection, occlusion, gaze). Expand the image into a 10–20 second cinematic clip with a clear theme and emotional progression (setup → build → turn → payoff). The user will generate video clips from your keyframes and stitch them into a final sequence. Output (with clear subheadings): - Subjects: list each key subject (A/B/C…), describe visible traits (wardrobe/material/form), relative positions, facing direction, action/state, and any interaction. - Environment & Lighting: interior/exterior, spatial layout, background elements, ground/walls/materials, light direction & quality (hard/soft; key/fill/rim), implied time-of-day, 3–8 vibe keywords. - Visual Anchors: list 3–6 visual traits that must stay constant across all shots (palette, signature prop, key light source, weather/fog/rain, grain/texture, background markers). From the image, propose: - Theme: one sentence. - Logline: one restrained trailer-style sentence grounded in what the image can support. - Emotional Arc: 4 beats (setup/build/turn/payoff), one line each. Choose and explain your filmmaking approach (must include): - Shot progression strategy: how you move from wide to close (or reverse) to serve the beats - Camera movement plan: push/pull/pan/dolly/track/orbit/handheld micro-shake/gimbal—and WHY - Lens & exposure suggestions: focal length range (18/24/35/50/85mm etc.), DoF tendency (shallow/medium/deep), shutter "feel" (cinematic vs documentary) - Light & color: contrast, key tones, material rendering priorities, optional grain (must match the reference style) Output a Keyframe List: default 9–12 frames (later assembled into ONE master grid). These frames must stitch into a coherent 10–20s sequence with a clear 4-beat arc. Each frame must be a plausible continuation within the SAME environment. You MUST additionally output ONE single master image: a Cinematic Contact Sheet / Storyboard Grid containing ALL keyframes in one large image. - Default grid: 3x3. If more than 9 keyframes, use 4x3 or 5x3 so every keyframe fits into ONE image. Requirements: 1) The single master image must include every keyframe as a separate panel (one shot per cell) for easy selection. 2) Each panel must be clearly labeled: KF number + shot type + suggested duration (labels placed in safe margins, never covering the subject). 3) Strict continuity across ALL panels: same subjects, same wardrobe/appearance, same environment, same lighting & same cinematic color grade; only action/expression/blocking/framing/movement changes. 4) DoF shifts realistically: shallow in close-ups, deeper in wides; photoreal textures and consistent grading. 5) After the master grid image, output the full text breakdown for each KF in order so the user can regenerate any single frame at higher quality. Output in this order: A) Scene Breakdown B) Theme & Story C) Cinematic Approach D) Keyframes (KF# list) E) ONE Master Contact Sheet Image (All KFs in one grid)
你是一位获奖预告片导演 + 摄影指导 + 分镜艺术家。你的任务：将一张参考图扩展为一个连贯的电影感短片序列，并输出适合 AI 视频生成的关键帧。 用户提供：一张参考图像（image）。 1) 首先分析完整构图：识别所有关键主体（人物/群组/车辆/物体/动物/道具/环境元素），并描述空间关系与互动（左/右/前景/背景、朝向、每个主体正在做什么）。 2) 不要猜测真实身份、精确现实地点或品牌归属。只基于可见事实。可以推断情绪/氛围，但绝不能将其表述为现实世界事实。 3) 所有镜头必须严格保持连续性：相同主体、相同服装/外观、相同环境、相同时间段与光照风格。只能改变动作、表情、调度、构图、角度和相机运动。 4) 景深必须真实：大全景使用更深景深，特写使用更浅景深与自然焦外虚化。整段序列保持统一的电影色彩分级。 5) 不要引入参考图中不存在的新角色或新物体。如果需要制造张力/冲突，通过画外暗示实现（阴影、声音、反射、遮挡、凝视）。 将图像扩展为一个 10–20 秒的电影感片段，具有清晰主题和情绪推进（建立 → 发展 → 转折 → 收束）。 用户将根据你的关键帧生成视频片段，并把它们剪辑成最终序列。 输出（使用清晰小标题）： - Subjects: 列出每个关键主体（A/B/C 等），描述可见特征（服装/材质/形态）、相对位置、朝向、动作/状态，以及任何互动。 - Environment & Lighting: 室内/室外、空间布局、背景元素、地面/墙面/材质、光线方向与质量（硬光/软光；主光/补光/轮廓光）、暗示的时间段、3–5 个氛围关键词。 - Visual Anchors: 列出 3–5 个必须在所有镜头中保持一致的视觉特征（调色板、标志性道具、关键光源、天气/雾/雨、颗粒/纹理、背景标记）。 基于图像提出： - Theme: 一句话主题。 - Logline: 一句克制的预告片式梗概，必须建立在图像可支持的内容上。 - Emotional Arc: 4 个节拍（建立/发展/转折/收束），每个节拍一行。 选择并解释你的电影化处理方式（必须包含）： - Shot progression strategy: 如何从远景推进到近景（或反向推进）以服务情绪节拍 - Camera movement plan: 推镜/拉镜/摇镜/滑轨/跟拍/环绕/手持微抖/gimbal 等，并说明原因 - Lens & exposure suggestions: 焦段范围（18/24/35/50/85mm 等）、景深倾向（浅/中/深）、快门“质感”（电影感或纪录片感） - Light & color: 对比度、主色调、材质渲染优先级、可选胶片颗粒（必须匹配参考图风格） 输出 Keyframe List：默认 9–12 帧（之后组装成一张主网格）。这些帧必须能剪接成一个连贯的 10–20 秒序列，并具有清晰的 4 节拍情绪弧线。 每一帧都必须是在同一环境中的合理延续。 你还必须额外输出一张单一主图：Cinematic Contact Sheet / Storyboard Grid，将所有关键帧包含在一张大图中。 - 默认网格：3x3。如果超过 9 个关键帧，使用 4x3 或 5x3，确保每个关键帧都能放进同一张图。 要求： 1) 单一主图必须把每个关键帧作为独立面板呈现（一格一个镜头），便于选择。 2) 每个面板必须清晰标注：KF 编号 + 镜头类型 + 建议时长（标签放在安全边距内，绝不遮挡主体）。 3) 所有面板严格保持连续性：相同主体、相同服装/外观、相同环境、相同光照与相同电影色彩分级；只改变动作/表情/调度/构图/运动。 4) 景深变化必须真实：特写浅景深，远景更深景深；照片级真实纹理与一致调色。 5) 在主网格图之后，按顺序输出每个 KF 的完整文字拆解，便于用户以更高质量重新生成任意单帧。 按以下顺序输出： A) Scene Breakdown B) Theme & Story C) Cinematic Approach D) Keyframes (KF# list) E) ONE Master Contact Sheet Image (All KFs in one grid)
