Silician Sketchbook

Tuning gaming netcode is like performing some mystical ritual. Everyone has their own way to get hitboxes to line up with the models they see on screen. In my experience it’s largely connection dependent, and that ping measurement reported in-game can be misleading.

During undergrad, I had pretty low latency connections through DSL and the university’s own backbone when in residence. Recently, latency performance has improved at home, but I find that I still have to lead my targets even if I do ping 50 ms on a cable modem.

I have yet to try the below chart out, original thread here. I’ve got to focus on studying for the next week. It suggests that the variable cl_interp has no effect. Being new to Source games in general, the initial advice I read was to set cl_interp to match my ping, and set rates according to a handy calculator.

Anyway, chart follows:

cl_interp_ratio 1.0 cl_updaterate 30 interpolation = 0.033
cl_interp_ratio 1.0 cl_updaterate 35 interpolation = 0.029
cl_interp_ratio 1.0 cl_updaterate 40 interpolation = 0.025
cl_interp_ratio 1.0 cl_updaterate 50 interpolation = 0.020
cl_interp_ratio 1.0 cl_updaterate 60 interpolation = 0.017
cl_interp_ratio 1.0 cl_updaterate 66 interpolation = 0.015
cl_interp_ratio 1.0 cl_updaterate 75 interpolation = 0.013
cl_interp_ratio 1.0 cl_updaterate 80 interpolation = 0.013
cl_interp_ratio 1.0 cl_updaterate 100 interpolation = 0.010

cl_interp_ratio 1.5 cl_updaterate 30 interpolation = 0.050
cl_interp_ratio 1.5 cl_updaterate 35 interpolation = 0.043
cl_interp_ratio 1.5 cl_updaterate 40 interpolation = 0.038
cl_interp_ratio 1.5 cl_updaterate 50 interpolation = 0.030
cl_interp_ratio 1.5 cl_updaterate 60 interpolation = 0.025
cl_interp_ratio 1.5 cl_updaterate 66 interpolation = 0.023
cl_interp_ratio 1.5 cl_updaterate 75 interpolation = 0.020
cl_interp_ratio 1.5 cl_updaterate 80 interpolation = 0.019
cl_interp_ratio 1.5 cl_updaterate 100 interpolation = 0.015

cl_interp_ratio 2.0 cl_updaterate 30 interpolation = 0.067
cl_interp_ratio 2.0 cl_updaterate 35 interpolation = 0.057
cl_interp_ratio 2.0 cl_updaterate 40 interpolation = 0.050
cl_interp_ratio 2.0 cl_updaterate 50 interpolation = 0.040
cl_interp_ratio 2.0 cl_updaterate 60 interpolation = 0.033
cl_interp_ratio 2.0 cl_updaterate 66 interpolation = 0.030
cl_interp_ratio 2.0 cl_updaterate 75 interpolation = 0.027
cl_interp_ratio 2.0 cl_updaterate 80 interpolation = 0.025
cl_interp_ratio 2.0 cl_updaterate 100 interpolation = 0.020

This entry was posted on Monday, December 10th, 2007 at 1:26 am and is filed under software.You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.