Did they test if it satisfies the relevant conservation laws?
Navier-Stokes fluid simulation explained with Godot game engine
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Re: Navier-Stokes fluid simulation explained with Godot game engine
#12Oh don't let us pinch zoom. That would be a disaster.
Assuming you mean the site - pinch zoom & pan works for me on Windows and iOS?
Re: Navier-Stokes fluid simulation explained with Godot game engine
#13Re: Navier-Stokes fluid simulation explained with Godot game engine
#14Did they test if it satisfies the relevant conservation laws?
It won’t satisfy those laws. It’s also not a goal though of this post.
Re: Navier-Stokes fluid simulation explained with Godot game engine
#15So once upon a time I stumbled upon simulating fluids in gamedev and I really wanted to learn how it works. Fast forward 2 months and I decided to write down everything I learned to hopefully make it easier for others in the future!
Great job. I have spent a lot of time working on fluid simulations (I still am). Glad to see more people still mesmerized. If you’re interested, this rabbit hole goes very deep.
Re: Navier-Stokes fluid simulation explained with Godot game engine
#16The unlinked Jos Stam paper is available from his website https://www.dgp.toronto.edu/public_user/stam/reality/Researc...
Re: Navier-Stokes fluid simulation explained with Godot game engine
#17If you haven't tried Animal Well, give it a shot. The whole game and its custom engine are like 35MB and it's filled with really cool visuals and physics powered by fluid equations.
Re: Navier-Stokes fluid simulation explained with Godot game engine
#18Did they test if it satisfies the relevant conservation laws?
It won’t satisfy those laws. It’s also not a goal though of this post.
I mean if you're writing a ray tracer and the reflected light has more intensity than the light sources, then that's not desired. You can have the same sort of thing going on with a fluid simulation.
Re: Navier-Stokes fluid simulation explained with Godot game engine
#19This is great! When I have some leftover time I want to try copying this implementation for 3D. I reckon I could get away with minimal modifications to support the third axis...I think...
That'll perform even worse though, hopefully my CPU can handle it or I'm gonna need a lot of leftover time to make a shader
Re: Navier-Stokes fluid simulation explained with Godot game engine
#20Earlier quoted context omitted.
It won’t satisfy those laws. It’s also not a goal though of this post.
I mean if you're writing a ray tracer and the reflected light has more intensity than the light sources, then that's not desired. You can have the same sort of thing going on with a fluid simulation.
One of the nice aspects of Stable Fluids is that you don't need to iterate the pressure correction terms to convergence. Just run a fixed number of Jacobi or Gauss-Seidel sweeps and keep performance consistent. The only drawback of this is some mass loss in areas, which for the present purposes is acceptable.