How can I render a normal map from FumeFX in maya?

Check out the discussion about it here: http://realtimevfx.com/t/realtime-vfx-dictionary-project/570/3?u=partikel

Tl;Dr You can get ok results using a lightrig, however the nature of fluids (with regards to light transmission) means you won’t get a very good normal as the fluid doesn’t have a solid surface.