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Rain on window effect

hey guys,
Do we have any documentation or tutorials about dropping rain on a window effect online ? I was looking through the forum and youtube but i can’t find anything.

So I did this in the UE4 Beta.

The effect works by having a bunch of Gradients that are panned down the Window at different intervals, which simply mask a ‘streak’-like normal down the surface. Give the window some Refraction properties, and you’re away :slight_smile:

Thats excatly what i’m looking for! Looks really nice, especially the rain “smear” ! Sadly i’m not that familiar with creating shaders, do you have any tutoruial about this ?