Mika McKinnon on Twitter: "Optics of raindrop-lenses: The rain is a flat-backed convex lens. The lens redirects light ray paths to invert what you see. Ignored: How the glass slightly refracts (bends)
Vector Water Drops On Glass Rain Drops On Transparent Background Stock Illustration - Download Image Now - iStock
unity - How can I create a "rain drops on camera lense" effect with the HDRP? - Game Development Stack Exchange