GraSPH is a Smoothed Partical Hydrodynamics code developed for astrophysical simulation of self gravitating fluid. The majority of the calculation is done on the GPU using openGL compute shader, which enables real time visualisation on most modern Graphics Cards. It was initially developed as part of my bachelor-thesis at the University of Koblenz in Germany which can be downloaded here (german): opus.

You can see the code in action - simulating star formation from a molecular cloud - in the following video (which was created on a consumer notebook) youtube.

If you want to use the code yourself you will need a openGL 4.5 compatible graphics card. While it might work on different operating systems, I only work on Linux, so use anything else on your own risk. To compile the code you will need openGL, GLEW, GLFW, GLM, cmake and a compiler that supports C++17. After checking out the repository use the following commands to compile.

mkdir bin
cd bin
cmake ..
make

The executable will be saved to bin/exec/GraSPH.

The code is build around my mpUtils framework, which is however included in this repository. Files relevant to he simulation are contained in the exec/GraSPH subfolder. To change simulation settings see the Settings.h file. To change initial conditions you have to change the code in main.cpp. More user friendly ways to change settings might be implemented in the future.