Real-Time Fluid Simulation following Jos Stam's Stable Fluids

Jos Stam's original demo was written in C using GLUT for early versions of OpenGL. To learn real-time fluid simulation techniques I've ported his demo to OpenGL 3.3 and introduced a few modifications, including:

1. Periodic (toroidal) boundary conditions: The fluid wraps around the window's edges both horizontally and vertically.
2. Colored visualization of velocity: Fluid velocity is visualized as a color varying from blue at zero speed to magenta at high speeds. (Fluid density is indicated by the intensity of the color at each cell.)

To run the demo, run make and execute demo. This has been developed on (and will likely only run on) macOS.

make
./demo

Goals

• Convert boundary conditions from fixed to periodic - Done!
• Vary visuals based on density and/or velocity - Done!
• Expand simulation to three dimensions
• Render in three dimensions

Libraries

• GLAD
• GLFW

References

• Stam, Jos. (2001). Stable Fluids. ACM SIGGRAPH 99. 1999. 10.1145/311535.311548.
• Stam, Jos. (2001). A Simple Fluid Solver based on the FFT. Journal of Graphics Tools. 6. 10.1080/10867651.2001.10487540.
• Stam, Jos. (2003). Real-Time Fluid Dynamics for Games.