Here
are some suggestions for improving the quality of your fluids renders:
Under Shading Quality,
set Render Interpolator to smooth
for a better rendered look.
If you see chatter when rendering an
animation, increase the Quality attribute
until the chatter goes away (expect renders in the order of 40 minutes
for NTSC frames).
To eliminate software render artifacts,
lower the Density Scale until the artifacts
are no longer completely opaque, and the adjust the Opacity curve
so that the relative densities of the different parts of the fluid
are satisfactory.
To eliminate artifacts when rendering
with mental ray for Maya, increase the Quality factor
under Shading Quality to 2.5, or
switch the Sample Method to Adaptive.
