Wednesday, July 27, 2011

What is lag compensation?

Question

Specifically in regard to online games, what is lag compensation? Should it affect the way I play?

Answer

Lag compensation is a feature of modern games that allows the engine to estimate where players would be, based on their ping.

For example, if a user is running forward at 10 feet per second, and their ping is 1000ms, you will see them continue to run forward for that whole second or until you receive another update of their position and direction.

This prevents users from looking like they are jittering around. However, in cases of extreme lag, "rubber banding" can occur.

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