Could isaac provide weather system by any way?

I want to make different scenes by changing different weather ,such as sunny , rainy, cloudy and foggy, to simulate and test robots’ different situation and physics. Is there any way to realize this easily by shader or nvidia physx?

Foggy yes, Common Rendering Settings — Omniverse Materials and Rendering documentation

but no rain or cloudy at the moment

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Could the particles system or fluid dynamics be used to make custom weather in theory? I’m sorry that I’m not familiar with physics engine.