动漫提示词案例

实战案例:用AI提示词制作二次元游戏角色PV《星轨机械师》45秒,从角色设定表到变身战斗镜头的日系动画全流程

发布时间:2026年09月26日 09:27:55

以一款太空题材二次元手游新角色上线PV为真实场景,演示如何用AI动画工具完成角色设定表锁定、日常萌系镜头、机甲变身、战斗高潮到收尾定格45秒日系动画,附保持角色脸部跨镜一致、赛璐璐上色统一、机甲机械结构可信、口型与台词节奏匹配的提示词写法与常见崩坏避坑记录。


背景

一款太空题材二次元手游下个版本要上线新五星角色「星轨机械师·凌霜」,市场部需要45秒角色PV用于B站、抖音和游戏内公告。找动画外包工作室做45秒精品PV通常报价25万起、周期6-8周,版本档期只给了两周。团队决定用 AI 动画工作流完成,原画师只提供一张角色立绘和设定文档。

二次元PV的生死线是角色一致性——观众对「脸崩了」零容忍,其次是赛璐璐上色统一、机甲不是废铁、变身节奏有演出感、不能出现第三只手。AI视频的老毛病恰好是跨镜变脸、手指崩坏、机械结构融化、日系画风漂移成3D或迪士尼。本案例的提示词全部围绕「锁角色」展开。

第一步:角色设定表(全案一致性总锚点)

提示词

你是日本动画工作室的角色设定师。为角色PV建立不可更改的设定表(character sheet),后续每个镜头都必须严格引用,禁止任何偏移:

【角色:凌霜 / 星轨机械师】
1. 脸部:17岁少女,瓜子脸,淡金色长直发及腰、左侧编一条细麻花辫用星环发扣固定,冰蓝色大眼睛(#6FB7E8),左眼角下一颗小泪痣,表情冷淡但偶尔毒舌,标准日系赛璐璐脸
2. 服装:深灰蓝短款机车夹克(毛领白色),内搭黑色高领,白色百褶短裙,黑色过膝袜,腰间挂扳手与微型焊接枪
3. 机甲(名:星枢):白银+冰蓝配色的轻型外装机甲,胸口六边形星轨核心发光,背部悬浮四枚可分离式机械浮游翼,机械结构必须是铰接关节与液压杆,不要生物肌肉感
4. 世界观:环形太空港机库,巨大舷窗外是蓝紫色星云与行星环,暖黄机库灯与冷蓝舷窗外光对撞
5. 画风锁死:Japanese cel-shaded anime, clean flat colors, 2D anime, A-1 Pictures风格,禁止3D渲染、禁止迪士尼皮克斯3D、禁止写实真人、禁止美式漫画粗线
请基于我提供的立绘生成:正面、侧面、背面三视图+5个标准表情差分。

产出:设定表先于一切镜头生成,后续每个视频镜头都以三视图作为参考图输入。踩坑:第一版角色的泪痣在每个镜头随机漂移到右脸甚至消失——解法是把「left eye mole」写进每一条镜头提示词,而不是只写在设定表里指望模型记住。

第二步:开场日常镜头(0-12秒,建立角色性格)

提示词

[Shot1 0-4s] 2D cel anime, medium shot, Lingshuang the star-rail mechanic leaning against her silver-white mech in a spaceport hangar, polishing a wrench, half-lidded ice-blue eyes, small mole under LEFT eye, long platinum-blonde hair with one side braid, warm yellow hangar lights, cool blue nebula through huge round window behind, subtle floating dust particles, calm slice-of-life mood, slow camera push-in
Audio: soft hangar ambient hum, wrench polishing cloth sound, gentle piano opening
Style: Japanese cel shading, flat colors, clean lineart, A-1 Pictures; Negative: 3D render, realistic human, disney style, extra fingers, mole on right side

[Shot2 4-8s] 2D cel anime close-up, she tosses a glowing hexagonal star-core part in one hand and smirks faintly, classic anime light catch reflection in eyes, hair swaying in zero-g vent breeze, small floating screws around her, same character design strictly, mole under LEFT eye
Audio: metal part clink, tiny screws drifting, music adds a beat
[Negative] fused fingers, six fingers, melting metal, 3D

[Shot3 8-12s] 2D cel anime wide shot, warning lights turn red across the hangar, she looks up sharply, eyes narrowing, the mech's four floating wings unfold behind her with mechanical clicks, dynamic low angle
Audio: alarm siren, hydraulic deployment clanks, music tempo snaps into action

产出:开场用「擦扳手→抛核心零件→警报」三拍完成冷淡日常到战斗的转折。日系演出要点是眼睛里的光 catchlight 和零重力漂浮小物件——这两个细节是「这很二次元」的廉价但高效信号。手指戏(抛零件)最危险,宁可让零件在掌心特写、不做逐根手指动画。

第三步:变身镜头(12-25秒,PV的演出核心)

提示词

[Shot4 12-18s 变身序列]
Japanese anime transformation sequence, 2D cel-shaded: Lingshuang stands as glowing ice-blue geometric armor panels fly in and lock onto her body one by one — chest hex star-core ignites, shoulder guards snap on with hydraulic detail, floating mechanical wings spread behind her, hair whipping in rising energy wind, eyes glow bright, speed lines and blue hexagon light shards swirling, iconic rhythmic mecha-musume henshin direction, dramatic backlight
Audio: musical sting with metallic lock-on sounds each panel clicks, building orchestral+electronic hybrid
Negative: nude/suggestive transformation, organic muscle, liquid metal melting, 3D CGI look, realistic, random face change, extra limbs

[Shot5 18-25s 机甲全貌]
Hero full-body reveal shot: completed light mech "Star Pivot", white-silver and ice-blue, articulated hinged joints and visible hydraulic pistons, glowing hex core on chest, four detached floating wing drones hovering at angles, she grips a giant adjustable wrench that extends into an energy polearm, landing in hangar with shockwave ring on floor, anime dust burst, confident cold expression, mole under LEFT eye, character design identical to sheet
Audio: heavy metallic landing thud, wings hovering whine, music drops into main battle theme
Negative: welded scrap pile, organic tentacle joints, blobs of metal, wrong colors, face drift, chibi proportions

产出:变身镜头两大坑:一是部分模型把日漫变身往裸露方向跑,必须 Negative 明示;二是机甲结构融成废铁——「hinged joints 铰接 + hydraulic pistons 液压杆 + panels lock on 分件卡扣」三个机械语言词能把机甲拉回工业逻辑。变身节奏参考成熟番剧做法:每个装甲件卡扣配一个音效重音,剪辑时踩点。

第四步:战斗高潮与收尾(25-45秒)

提示词

[Shot6 25-34s 战斗]
Dynamic 2D anime action sequence: Lingshuang in mech dashing through the hangar, four floating wings firing blue energy beams at incoming security drones, slashing with the energy polearm in a wide arc, classic anime motion blur streaks, impact frames with bold contrast, sparks and hexagonal energy shards, camera quick whip-pans then a decisive spinning kick pose, background planets and nebula visible through shattered window
Audio: beam zaps, metal clashes, impact whoosh, battle theme at full intensity
Negative: gore, blood, realistic explosion, 3D, extra arms, weapon merging into hand, face changing

[Shot7 34-40s 收尾]
2D cel anime, battle over, she powers down the mech with wings folding back, catches her breath in the golden hangar light, a faint rare smile, the star-core on chest dimming to soft blue, hair settling, slow orbit-around camera
Audio: systems powering down, her soft exhale, piano returning

[Shot8 40-45s 定格]
Card illustration pose: Lingshuang standing before her mech under the starlit window, looking back over shoulder with cold confident eyes, title safe area center for game logo "星轨机械师·凌霜" to be added later, sparkles drifting, freeze frame into illustrated key visual
Audio: final piano note, UI gacha sound sting added in post
Negative: render text in image, english gibberish letters, 3D

产出:高潮要「动三镜静一镜」:dash→斩击→踢击pose,impact frame(冲击帧)是日系动作戏的灵魂,写「impact frames with bold contrast」比写「炫酷战斗」有效十倍。收尾logo一律后期——AI写中文必崩,定格画面只留安全区。

第五步:配音、口型、剪辑与多版本

提示词

1. 台词(仅两句,配音用真人CV,生成口型参考):
   - 08s警报时(冷淡):「……又加班。星枢,干活了。」
   - 36s收招后(极淡的笑):「零件的脾气,比舰长好懂多了。」
   口型镜头只做近景并锁定闭嘴/张嘴两帧循环,远景台词不做口型,降低崩坏面
2. 音乐:钢琴日常→电子+管弦混合变身→战斗主题→钢琴回收,45秒结构踩在4/8/12/18/34秒五个点
3. 字幕:台词下方白色细体字幕加黑半透底条;角色名与游戏logo AE后期合成
4. 调色:全片统一赛璐璐平涂色板,机库暖黄#E8B36A与舷窗冷蓝#3A5A9C对撞贯穿,任何偏写实的镜头重跑
5. 版本:45秒B站横版完整版;30秒抖音版砍掉日常只留警报→变身→斩击三拍;15秒应用商店版只用变身定格+logo;9:16竖版重新构图(机甲全貌改竖向hero pose)
6. 质检清单逐镜过:泪痣位置、发色发辫、夹克毛领、机甲配色与四翼数量、手指数、无第三人称乱入

成果与复盘

45秒PV从设定表到剪辑锁版共11天(其中人工重跑镜头约30次,主要集中在手指与机甲结构),成本约1.8万元(工具订阅+原画师修脸+CV录音),对比外包25万/6-8周,成本降93%、周期缩短70%,B站播放与角色卡池转化率达到过往外包PV的同等水位。最重要的经验:AI动画不是一次出片,是「设定表锁死+单点崩坏重跑」的流水线管理;脸、泪痣、机甲结构这种一致性元素必须逐镜复述,宁可多跑十次也不接受一次脸崩,因为二次元玩家对崩坏的容忍度是所有内容品类里最低的。

6条可复用清单

  1. 设定表先行:三视图+表情差分先出,每个镜头都带参考图输入,角色特征词(泪痣左右、发辫)逐镜复述
  2. 画风三连禁:每条镜头写死Japanese cel-shaded 2D anime,Negative禁3D/迪士尼/真人/美漫,防画风漂移
  3. 机甲写机械语言:铰接关节、液压杆、分件卡扣,Negative生物肌肉与融化金属
  4. 手指戏做减法:特写掌心而非逐根手指,远景不做口型,把崩坏概率压到最低面积
  5. 动作戏要impact frame:冲击帧+速度线+三拍剪辑(冲刺/斩击/定格pose),比「炫酷」形容词有效十倍
  6. 文字全后期:角色名、游戏logo、字幕都在AE合成,定格只留安全区;多版本按平台重新构图而非裁切