[Higher resolution, but possibly much more computationally demanding, version](
https://marl0ny.github.io/split-operator-simulations/js/3d.h...). [2D version](
https://marl0ny.github.io/split-operator-simulations/js/2d.h...). This was actually posted here long ago by someone else, where the comments were basically about not being able to run it in the first place. Well recently I've increased device compatibility, but even on some devices it may not run properly. For all Android devices I have to use a JavaScript FFT fallback instead of the default GLSL implementation, so expect significantly slower performance here. But even on some lower-end Android devices, it may not even run at all, so expect a black screen. I've also heard an issue where some of the GUI controls or buttons do not work; as I haven't been able to reproduce this, I suspect this is due to conflicts with browser extensions.