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Unity (ECS/Job System) SPH

Implementation of the SPH Algorithm (fluid simulation) in Unity, comparing singlethread and ECS/Job System performances.

Updated to Unity 2019.2!

More info in this article: https://medium.com/@leomontes_60748/how-to-implement-a-fluid-simulation-on-the-cpu-with-unity-ecs-job-system-bf90a0f2724f

How to:

You can select the scene from 'Assets/Scenes'. Once in the scene, you can hit play to see the simulation. You can change some settings in the script from the MANAGER GameObject.

Settings:

Single-thread:

  • Particle count
  • Particle parameters*

ECS, Job system:

  • Particle count You can find the particle parameters* inside 'Assets/Job System/Prefabs' in the SPHSphereECS GameObject.
  • Particle parameters:
    • radius
    • smoothing radius
    • rest density
    • gravity multiplier
    • mass
    • viscosity
    • drag