Python-Taichi version of the nbody problem. Taichi is used for the N² computation (no BH tree used) and PyGame handles the draw calls into a regular pygame surface (3D is done by hand for the matrix fun), then this surface is converted into a texture which is rendered in a quad (ModernGL window) by the fragment shader. Options can be adjusted on the fly using Dear Imgui bindings.
Leapfrog / Verlet integration has been used for its energy conservation property.
Dependencies: taichi, pygame-ce, PyGLM, moderngl, numpy, imgui[pygame] (python3 -m pip install -r requirements.txt).
Usage:
python3 main.py --arch=cpu --body=3 --fps=-1
Key C: clear ON/OFF
Key P: pause ON/OFF
Arrows and mouse to move the camera
Left-Shift = move up
Left-Control = move down
Q: zoom in
W: zoom out
