Raw Input

Settings page

True raw mouse input (Windows). Reads unaccelerated hardware deltas straight from the OS, bypassing Windows pointer acceleration for 1:1 aim. Off by default because it genuinely changes how aiming feels: slow movement gets faster and flicks get slower than vanilla. Falls back to vanilla automatically if unavailable.

WhereSettings › Input
KindClient setting
Versions1.8.9 and 1.21.11

Reads mouse movement straight from Windows, before pointer acceleration, so a given hand movement always turns you by the same amount. Windows only; elsewhere it falls back to normal input on its own.

Raw InputTrue raw mouse input (Windows). Reads unaccelerated hardware deltas straight from the OS, bypassing Windows pointer acceleration for 1:1 aim. Off by d…
Behavior
Sensitivity1
Sensitivity CurveVanilla Curve
Mockup of the Raw Input panel with its default settings. Every row is explained below.

Turning it on

  1. Sour Client menu, then Settings, then Input, where it sits as Raw Input.
  2. Change any row and it applies straight away. Reset puts the section back to defaults.

Good to know

It is off by default because it does change how aim feels: slow movements get faster and quick flicks slower than vanilla. Give it a few games before judging it.

Every setting

In the order the game shows them. Indented rows only appear once the row above is set the way it says.

Behavior2 settings
SensitivityFine-tunes raw look speed relative to your vanilla sensitivity (1.0 = as-is).10.25 to 3
Sensitivity CurveVanilla Curve keeps Minecraft's own cubic sensitivity response. Linear makes the slider proportional, so a cm/360 figure from another client transfers.Vanilla CurveVanilla Curve, Linear