I've been trying to create a motion vector AOV of a smoke simulation I created using Maya fluids (Maya 2018.4). From my understanding, I need to enable motion blur to do this...but when I do either the render turns black or the fluids turn blue. The cache I am using includes the velocity information. I've tested out several different fluid simulations but I keep getting the same issue.
So, if a motion vector AOV is even possible with a Maya fluid, I'm unsure if I'd be able to do it without fixing the motion blurring.
Or, is there a way to use the shading settings on the fluid to create the RGB information for the velocity?
Thanks for the help!