OK, decided to do the TCC day 2 extra challenge “meta-balls” after all!
As expected, the rendering is a custom shader, but fed from a Flitter 2D particle system modelling gravity and reflections off walls. I experimented with different output equations looking for the most interesting thing I could do in the remaining characters. I enjoy the starkness of the black bands here.
Code comes in at a neat 400 bytes:
https://github.com/jonathanhogg/flitter-examples/blob/main/lovebytetcc2024/day02x_metaballs.fl