Ive made something similar to this a while ago. https://www.chromeexperiments.com/experiment/one-million-particles https://www.chromeexperiments.com/experiment

Ive made something similar to this a while ago. https://www.chromeexperiments.com/experiment/one-million-particles https://www.chromeexperiments.com/experiment/one-million-par... It does its calculations on the GPU so it can handle a million particles easily. You can also pause it to explore it in 3D.