How to make a 2D water image texture look like it's flowing?

In this website: https://iconicmints.wsjbarrons.com/ they make water look like it’s flowing downwards with which I assume is a 2D image texture. How would I do this?

@panda_warrior

Textures in Three.js have property offset. It can be used to shift a texture. It works best with seamless textures and proper values of wrapS and/or wrapT.

https://threejs.org/docs/index.html?q=texture#api/en/textures/Texture

– Pavel

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