I have tested it in combination with focal blur. And with good/high focal
blur settings, there will be no jittering. Even with adaptive 0. See
http://imp.3dhost.net/33.mpg (2,431,794 bytes) at the IMP website if you
want to see an example. Sources of this animation can be found at
http://www.imp.org/impfarm/jobs/33.zip.
