Large scale photoreal simulations made in SideFX Houdini. Pyro, Fluid, Particles, RBD.
VJing is a creative outlet I explore as performance art, regularly playing shows / creating interesting new scenes.
The software I use is Touchdesigner, it's akin to Max MSP in how you make everything from scratch.
Currently, I'm building a library of scenes, audio driven 3D spaces that are rendered live & I manipulate with MIDI controllers. I tend to explain it to promoters as the difference between a DJ set and live hardware set, but for visuals.
While pre-made VJ clips are crisper, my scenes have unlimited flexibility and control.