I was wondering if anyone could help me figure out how this asset was created (credit: Travis Brothers, Post Malone tour advertisement). It looks like a firework, but I have tried vectoring early firework explosions and cannot seem to get the same effect. It might also be a sort of time travel lens flare.
Or, it has been made from scratch with some threshold adjustments, etc. And if this is the case, I am curious how it would have been achieved. Custom shape? Textured brushes?
Thanks for any and all the help.