With the TempAARandom set to 0 you can see some cool artifacts in specular highlights using various values of “Radial Steps”
3 radial steps:
3.1 Radial steps causes a spiral instead:
3.3 Radial steps causes a sort of fibonacci spiral:
The tempAA random fixes some of this up but not all of it without using tons of samples.
I think there is way better way of using TempAA here this was just an experiment.