As usual after some animation project (at least the personal ones) I always like to design posters based on different scenes, and with VOLUMES it was not going to be different
Volumes
Volumes refers to the use of Volumetrics (simulations of smoke, clouds and fire) to produce forces and geometric shapes that can generate an entire animation.
Houdini Advect by Volumes
Exercises of "Advect by Volumes" in Houdini, an easy way to uses velocity volumes to move particles, these are some of the results, render with Arnold Renderer.