如何为 Kiwi 写提示词

最重要的规则

1. 1

   写明光线、景别和镜头

   先写拍摄方式:“中景,平视,柔和的晨光,暖色调。”最后再加一个运镜。

2. 2

   描述动作:幅度多大、速度多快

   “笨拙地把雪球向前滚”比“在雪地里玩”更好。写清楚什么在动、先后顺序,以及它对场景造成什么影响。

3. 3

   每个片段一个场景

   Kiwi 生成的是单个镜头,所以一个片段里更换地点会出问题。请把每个场景做成单独的片段,再在剪辑软件中拼接。

4. 4

   用引号写出说的话

   带引号的台词会逐字念出,并使用你描述的声音:老渔夫用缓慢沙哑的声音说:“潮水要转向了。”不写的话,Kiwi 可能会自己编台词。

5. 5

   有起始图片时,只写动作

   画面已经包含了主体、场景和风格。只需写什么在动、镜头怎么运动,不要再描述外观。

可参考的提示词

• 带声音的俏皮瞬间

  Medium shot, eye level, soft morning daylight, warm colors, center composition. A fluffy ginger kitten in a snowy back yard rolls a snowball with its front paws and pushes it forward clumsily. The snowball breaks apart; the kitten jumps back in surprise, sneezes, then creeps closer and nudges the pieces with its head, tumbling over. The camera tracks slowly at kitten height. The crunch of paws on snow, the swish of the rolling snowball, the crack as it breaks, a tiny sneeze, and a light, warm piano melody.

  为什么有效: 先写画面风格,动作是有开头和结尾的清晰链条,每个声音都有来源。把时长设为 10 秒。

• 说一句话的角色

  Low angle, medium close-up, warm tones, mixed light from a green desk lamp and grey window light. In a cluttered detective's office, a fox in a brown trench coat and grey fedora sits in a leather chair turning yellowed pages. Rain streaks the window behind him. He raises his head, ears twitching, looks straight at the camera and says in a smooth, cynical voice: "The case was cold. Colder than a fish in winter." Steady rain on glass, pages rustling. No background music.

  为什么有效: 两个光源营造氛围,台词简短,带引号并注明声音,而“没有背景音乐。”能让雨声和翻页声更清晰。

• 让起始图片动起来

  The camera pulls back slowly as the two men climb the stairs; the man on the left steadies the man on the right with his hand, and both pause on the landing to catch their breath. Footsteps on stone, heavy breathing.

  为什么有效: 把图片添加为起始图片。提示词按图片中呈现的样子称呼这些男人,并把所有文字都用在动作、镜头和声音上。

• 贴近水面的跟拍镜头

  Low angle at water level, overcast daylight, muted greens. A folded paper boat drifts down a rain-filled gutter, spinning slowly as it bumps past leaves and pebbles, rain dimpling the water around it. The camera tracks alongside it at the same speed. Realistic. Rain pattering, water trickling into a drain.

  为什么有效: 不寻常的机位高度能让日常的主体变得有趣,而随主体移动的镜头能让它始终留在画面中。

• 风格化的城市

  Tilt-shift miniature look, high angle over a busy city intersection at night. Cars and pedestrians stream through in toy-like motion as the traffic lights change and shop signs flicker along both sidewalks. The camera holds still. Soft city hum, distant horns.

  为什么有效: 指定一种风格，两个词就能改变整体观感；固定机位则让画面中的动作来带动整个片段。