1.2K
Detail this asset from Unity Asset Store: Original Link
This is a paid asset, but we’ll share Liquid Physics Approximation Free for you. Enjoy!!!
Liquid Physics Approximation v1.2.8
Liquid Physics Approximation allows you to create a container (with every type of convex mesh), that contains moving liquid with approximated physics.
Forum (to be used also for bug report)
This effect it offer a good visual effect with low performance impact, and include customized liquid weight/density and many more features.
Note: glass and liquid shaders can be edited on ShaderForge.