Real-Time Fluid Simulation (Example Project)

[rapid relic]

A real-time fluid simulation in Godot. Makes use of RigidBody3D nodes along with a custom-built DropletServer autoload that simulates cohesion.

Video: https://github.com/thompsop1sou/godot-fluid-sim/assets/114190975/2e731808-9423-4b42-9e21-e409e9b35a5c

More info on the GitHub repo: https://github.com/thompsop1sou/godot-fluid-sim

[rapid relic]

Updated this project so that it can work with physics server RIDs. This allows for some optimizations (see https://docs.godotengine.org/en/stable/tutorials/performance/using_servers.html)

[rapid relic]

I just created a new project that allows you to freeze the fluid. It's based on this project, but with significant changes.

Video: https://github.com/user-attachments/assets/b4e7a4fa-e55c-436b-835b-9fd2c3d9db7a

Repo: https://github.com/thompsop1sou/freezable-fluid-sim

Real-Time Fluid Simulation (Example Project)

[proper solstice]

this is very interesting, how well does it hold up to a higher amount of droplets?

[rapid relic]

I mean, it's not amazing, but it's enough to play around with. Might be enough for a little pool in a game. I have a graph in the readme on GitHub:

[proper solstice]

Interesting

Is there a way to bake the simulations, or is that not planned?

[rapid relic]

That's not planned. The purpose of this project was to make it real-time, so you could actually move a character through the "liquid" and see it react dynamically

[proper solstice]

Ah, interesting