I started working on a small fluid simulation in Three.js just for learning. Originally, this was really just meant to be a test project and something fun to mess around with, but after working on it a bunch I decided I want to keep developing it and eventually turn it into something interesting.
So far I’ve built basic SPH simulation and got particles interacting with each other. I also implemented spatial hashing to make everything more efficient which just avoids checking every particle against every other particle. This improved the performance a lot especially with a lot of particles.
I also added configurable simulation parameters such as gravity, pressure, particle count, etc to make testing easier. I also worked on the particles like befoe they were just blue circles but right now they change their color based on speed which I implemented by adding a shader.
Right now, it still needs a bunch of work. There are bugs I need to fix and generally make the physics better. Next, I want to make the particles interactive something like click to move them type thing for testing. After, I’ll work on improving the physics, fixing bugs, and finally make stuff 3D.