基于Wan2.2 I2V ，主要是用来 一步一步把阳光“加”进画面里的，整体感觉会很自然，不会突然变亮。

• 阳光会慢慢变强，看起来就像太阳一点点出来

• 云会轻轻移动、散开

• 光线自然地铺满整个画面

很适合那种一开始画面有点暗、有点平，接着像是天气放晴了，整个场景被阳光照亮的感觉。

Main effects:

• Sunlight gradually getting stronger

• Clouds slowly shifting and opening up

• Light spreading across the landscape in a smooth, natural way

It’s great for shots where the scene starts a bit dark or flat, then feels like the sun is coming out, lighting up the world naturally.

Works well for nature scenes, outdoor environments, drone shots, and cinematic reveals.