Everything done in UE4, except sand and dust VFX done in Houdini.
Last shot shows mad-maxesque sand storm, in slow motion.
Is that achieved using motion vectors [www.sidefx.com]?
My understanding was that with motion vectors you end up with an animated texture material which you apply to a 2d pane, but in the shot the camera is moving in the 3d space and seems not to reveal the (possible) two-dimensional quality of the sandstorm…
Or maybe, to reach the 3d appearance, they just populated a big cascade particle system with lots of motion vector textures as particles, like you would normally do with normal flipbook textures? Can you even do this?