Particles advected (via VDB point advect) by velocity generated with a smoke sim (Smoke Solver).
Used Wedge to rendere 10 different versions.
Used Nuke Particles to instance the different versions.
~2,5M Particles per instance (200 frames sequences)
~10 minutes smoke sim time (200 frames)
~10 minutes particles advection sim time (200 frames)
~1 hour render (for 200 frames)
~2 days of work