Experimenting with 2D volume sims and particle advection. The 2D volume solver is super fast, which makes physics look-dev a lot more efficient. It’s also a lot quicker to decide colour palettes in comp, so I assigned random colour to the POP emission using noise, then filtered out the colours I didn’t need in post.

I lit the particles surrounding the spheres with an emissive material, based on a distance/falloff value.