Unity – FluXY - 2.5D fluid simulator v1.4.1

FluXY is a GPU, grid-based, 2.5D fluid simulator. It's lightweight, fast, robust, and easy to use. You can use it for simulating fluid effects in realtime, as well as generating flipbook textures.

Here you can find the manual and API docs.

Includes shaders for:

Opaque fluid surface (URP/HDRP, 2019.4 and up)
Transparent fluid surface (URP, 2019.4 and up)
Volumetrics, new in 1.3 (URP/HDRP, 2021.2 and up)

You can use the included shaders on your project right out of the box, or as inspiration for your own simulation-driven shaders.