Yeah, it appears to be having trouble at the moment, so if you do a search on Google, you can see some of thier stuff too

There are "some" ways to do things like that in Maya like rgbPP particle sims, fluids, and even texture maps on planes and simple geometry, heck, even PaintFX.

But usually, the VFX-rule-of-thumb is if you don't have to
"fly through it",
it is ALWAYS best, and usually FASTER to do it in POST.

Just my 2 cents