Did you know you can use a Poisson solver to solve for field lines on an arbitrary distribution?
Field lines 'follow the flow', and they are super useful for visualizing flow fields or charge distributions
&pps

Not a lot of super cool pictures that actually mean anything for day 2 of &pps, but I've implemented 'my' algorithm (which I've taken to calling the 'kernel solver') for the CPU (for now), and I was surprised to learn that, when compiled with odin's optimizer, it was actually faster, as well as more efficient, than Successive Overrelaxation
That bodes well!
A lot more characterizing and visualisations have to be done though

Accidentally created something that looks like sunset/dawn with &pps
Doing math visualizations is always fun because of stuff like this

These are the results of a simple Poisson solver benchmark (I made some reference implementations to compare against), and I'm working on some colourmaps
Currently manually inputting colour values in the code, which is a little janky
Hoping to switch to OKLAB at some point too, instead of lerping rgb hahaha
&pps