About rain effect.
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Can you add a mask to the rain screen with raindrop effect? I want to realize a game like Metro. If water drops fall on the screen, you can wipe them off by hand. (in fact, there is a mask, the screen is distorted with water droplets, and then the screen becomes clear after wiping).
Or do you have any good ways to achieve that effect? Sorry, I'm not very good at shader.
Thanks.