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Not 1:1 means some mouse input is delayed or discarded. Delayed or discarded mouse input can sometimes reduce your effective polling rate or make the mouse less smooth.
1/11 0.03125
2/11 0.0625
3/11 0.25
4/11 0.5
5/11 0.75
6/11 1.0
7/11 1.5
8/11 2.0
9/11 2.5
10/11 3.0
11/11 3.5
For example, if you are using 3/11 Windows sensitivity and an in-game sensitivity of 12, your equivalent in-game sensitivity with 6/11 would be 12 * 0.25 = 3.0.
When Windows applies the scaling factor, it can only pass through a whole (integer) number of mouse movement to your game and holds back or delays a remainder which is added into the next movement.
For example, assume you are using 3/11 and the mouse moves three counts. The Windows mouse speed calculation is 3 * 0.25 = 0.75, which results in NO pointer movement (but the 0.75 remainder is held back and delayed until the next mouse movement).
You then move the mouse two counts. The calculation is 2 * 0.25 = 0.50 + the 0.75 from last time = 1.25, and the pointer only moves by 1 (and the 0.25 remainder is held back).
This particularly scenario would produce a relatively small effect but can be much more noticeable at lower slider settings and in-game sensitivity, effectively reducing your polling rate. |
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