With acceleration, if the mouse is moved by the same 5 cm but in 1 second, the cursor travels 1000 pixels - five times the distance of the slower movement. For example, a user moves their mouse 5 cm in 5 seconds and the cursor travels 200 pixels across the screen. Distance of the cursor on the screen is highly dependent on the speed which mouse is moved. Mouse acceleration is a different system to enhance mouse movement. Unfortunately is not easily detectable apart from mouse movement feeling weird. This feature should not exist today as every mouse on the market has at least 800 DPI resolution, however it is still used in some games and some mouse manufacturers are using it to further increase the perceived DPI. To prevent the jerky cursor movement mouse smoothing was introduced which allowed the system to interpolate raw data from the mouse and creating additional data points so the final mouse movement on the screen would be smoothed out. ![]() The technique was originally created for opto-mechanical mice (more commonly know as ball mice) as these mice did not have a very high resolution (usually up to 400 DPI) so cursor movement appeared jerky - the cursor jumped few pixels each time. Mouse smoothing is the interpolation of raw input data from the mouse in order to prevent jerky movement in low resolution mice. ![]()
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