12 animated 2D weather effects for Unity, one line of C# each. Every effect is a single shader on a single quad: no textures, no particle systems, sharp at any size.Works in any pipeline: the effects are unlit shaders on a quad each. Tested in Built-in, URP (2D and Universal Renderer) and HDRP. In HDRP the colours come out under HDRP's default exposure and post-processing unless the camera turns them off.12 animated 2D weather effects for Unity, one line of C# each. Every effect is a single shader on a single quad: no textures, no particle systems, sharp at any size.var rain = WeatherFX.Add("rain").Set("density", 0.8f);WeatherFX.Add("fog").Set("color", new Color(0.9f, 0.9f, 1f)).FadeIn(3f);WeatherFX.Add("water").Place(new Vector2(-6.4f, -1.4f), new Vector2(12.8f, 2.2f));var storm = WeatherFX.Add("lightning");storm.Strike();rain.Stop(2f);What's insideWeather that covers the camera's view and follows it: rain (with splashes), snow, fog, lightning, falling leaves or petals, cloud shadows, god rays, heat hazeWater: a lake that reflects your scene with waves and glints, a waterfall with foam and mist, underwater causticsTime of day: day_night tints the whole scene from dawn through noon and dusk to night, held or cyclingColour, strength, speed and wind on every effect, plus settings of its own: density, drop length, fog height, ray count, wave height, strike frequency...Pixel-art mode: set PixelSize on one effect, or WeatherFX.DefaultPixelSize once for the whole game, and the effects draw in crisp, world-aligned pixels that match your art.Layer them: rain over water with lightning, snow at night, fog under god rays.Patterns stay put in the world while the camera moves, orthographic or perspective.FadeIn() and Stop() for weather that comes and goes; Strike() for lightning on cue.Add a WeatherFX component to an object and it shows in the editor too.Demo scene: a pixel-art landscape in 11 moods, toggle and stack every effect.CompatibilityUnity 6.3 or later, in any render pipeline: Built-in, URP (2D or Universal Renderer) and HDRP.Either input handler for the demo: the Input Manager or the Input System.The shaders, the package's C# scripts and the GDScript that draws the demo's landscapes pixel by pixel were written with the help of AI (Anthropic's Claude); no generative image model.The weather shaders (unlit, a quad each), WeatherFX as C# source, and a demo scene: a pixel-art landscape in 11 moods with a toggle per effect. Unity 6.3+, any render pipeline.Unity 6.3 or later, in any render pipeline: Built-in, URP (2D or Universal Renderer) or HDRP.A Documentation.txt in the package's folder says what is where and how to use it.Try the demo scene in your browser: https://pikoulas.com/demos/weather-fx/The shaders, the package's C# scripts and the GDScript that draws the demo's landscapes pixel by pixel were written with the help of AI (Anthropic's Claude); no generative image model.
