如何为 Wan 2.2 写提示词

最重要的规则

1. 1

   开头用最多四个电影感标签

   可从时间、光线、景别、角度和构图中选择：“Side lighting, medium shot, sunrise time, warm colors.”超过四个会削弱效果。

2. 2

   把动作从头到尾写清楚

   “She reaches for the cup, lifts it, and blows across the surface.”如果主体只是站着不动，生成的片段几乎不会动。

3. 3

   让背景动起来

   比如云飘过、树叶轻摆、车流经过。主体身后哪怕只有一点动静，画面也会更生动。

4. 4

   不要写声音和氛围描述

   不要写对白、音乐或音效：片段是无声的。也不要写“the scene is full of life”这样的句子：直接写出是什么让画面有生气。

5. 5

   用图片生成时，只写运动

   使用首帧时，画面外观已经由图片决定。只需说明什么在动、镜头怎么动，控制在 100 个词以内。

可参考的提示词

• 动态人像

  Practical lighting, warm colors, night time, medium close-up shot. A woman in her thirties with cropped black hair, a mustard knit cardigan and round tortoiseshell glasses sits at a cluttered desk under a green-shaded lamp. She leans in to read a letter, frowns, then breaks into a slow smile and presses the page to her chest. Behind her, rain streaks the dark window and the reflection of the lamp trembles in the glass.

  为什么有效: 四个标签定下了光线和构图，动作有开端、转折和结尾，雨则让背景也有了自己的动态。

• 没有人物的风景

  Aerial, extreme wide shot, dawn time, soft lighting. Mist rolls slowly across terraced rice fields that step down a green hillside, the flooded terraces mirroring a pale pink sky. A narrow river winds along the valley floor, and a flock of white egrets lifts off the water and glides across the frame.

  为什么有效: 提示词里没有要求人物，所以不会出现人；雾气、河流和飞鸟带来了画面的动态。

• 从首帧开始

  The girl in the yellow raincoat jumps into the puddle with both feet, water splashing up around her boots, then looks up and laughs. The camera pulls back slowly.

  为什么有效: 把静态图片上传为首帧。提示词按图片中的样子指代这位女士，只写会动的部分。

• 风格化片段

  Claymation. A chubby clay chef in a tall white hat flips a pancake in a tiny frying pan; it spins high into the air, and he catches it on a plate with a proud little bow. Behind him, steam puffs from a row of clay pots on a miniature stove.

  为什么有效: 先写明风格名称，并省略电影感标签，非写实照片类的画面都应该这样做。