N-Body Gravity in Java | 50K Particles

This video showcases a gravitational n-body simulation I coded in Java. It utilizes multithreading and octree optimization.

[@mrgoodpeople]

If you make calculations on GPU using compute shaders, you can avoid octree optimization and perform fair brute force N^2 algorithm for gravity! It works on modern videocard for 50K particles in realtime! Without any optimization.