sphere_quality controls the rendering quality of sphere objects.
# the default value is 1 set sphere_quality, <integer>
Larger values of <integer> result in higher quality sphere rendering. Values >1 may result in poor performance during real-time rotation or translation.
Note: Selecting values larger than 2 with stick_ball = 1 (enabled) causes PyMol to crash in the Windows version.
Open the images to see rendering details.