If you mean fiddeling with the source you'll have to look at splines; but I guess you just want some pointers as to what turning those two screws will change, right?!?
Well smoothdist is the maximum distance in cubes until which smoothness-functions will be applied, anything beyond 8 cubes (default) will jump. smoothmove does something similar, but based on time, the higher the value the more likely smoothing will take place. The maximum range is 100ms (since last position-packet with smoothmove on) when smoothmove is at 100, of course higher range will also increase the error-margin.
HTH
Well smoothdist is the maximum distance in cubes until which smoothness-functions will be applied, anything beyond 8 cubes (default) will jump. smoothmove does something similar, but based on time, the higher the value the more likely smoothing will take place. The maximum range is 100ms (since last position-packet with smoothmove on) when smoothmove is at 100, of course higher range will also increase the error-margin.
HTH