Hey there @Machii07! Welcome to the community! In most cases, games are required to fake “flowing” when it comes to liquids. Materials or simple particles is what is usually recommended but if you have the performance budget and you really want simulated fluids you can go with something like Niagara fluids:
Though often this is not what would be expected in a realtime environment due to how performance hungry it can be.
I would recommend something like flowmaps personally as you have a bit more control than a basic panning material, but don’t sacrifice as much performance:
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