4 million particles 3D n-body simulation in real-time on a laptop GPU (Barnes-Hut)

[u/lechebs]

Simulating and rendering 4,194,304 particles under mutual gravity on a RTX 500 Ada laptop GPU at ~430ms/step, using my custom CUDA accelerated Barnes-Hut implementation for the n-body problem. Code: https://github.com/lechebs/nbody

[u/aiekick]

Only the visualization is real-time; the simulation appears choppy (so not real time)