Is there some way to achieve this lightning effect in Unity?

I mean stuff similar to this where the light looks as if it’s behind an object that casts shadows:

You need to have cookies with lights.

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Thanks.

Bonus question: Can I make it so that light textures (I don’t mean actual lights, but game textures intended to represent lights) are permanently bright even in low light areas?

Everything in a material marked as “emissive” will be permanently bright.