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What's granulariy and saturation under DirectInput8?

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Saturation means that there's min/max values for joystick position on axes.

Granularity means that there's some precision, depending on joystick model/vendor.

As you move joystick slowly, its position reported with steps. Maybe those will be small, but it's still steps.

And there's no way joystick will report two adjacent coordinates with difference smaller than granularity.

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