Simple 2D Particle Simulation C++

500,000 particles. Written in C++ and OpenGL. All the calculations are done on the CPU. I only used OpenGL to display the resulting 2D image. It runs on a single thread. No SIMD. Nothing fancy. The CPU used here is Intel i5 4670k running at about 4.1GHz .

It's not an accurate simulation of anything. The math I used is kinda wack.
I think the little anomaly at the end of the video is due to Windows thread switching.