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  • dobragab

    addikt

    Jelentem, készítettem egy eszközt input lag mérésére.

    Az OxyPlot MouseTester nyílt forráskódú, így bele tudtam b@sztatni. OCN-en az Other Notes alatt leírta microe a módszer lényegét, így nekem "csak" megvalósítanom kell.

    Smoothing/Frame-Induced Delay:This is a new one that has come up recently but unfortunately it is very difficult to measure, the following is my somewhat simplified understanding of the process. The mouse sensor acquires images of the surface called "frames". The frame rate of the sensor may or may not be constant. There are signal processing algorithms that takes these frames and translates them into counts. Depending on the signal processing algorithm there is an inherent latency from when the movement occurs to when the sensor has the counts available in the motion registers (frame delay). These counts are acquired from the sensor by an external microcontroller which accumulates these counts, optionally does some additional processing, finally sending a value to the PC on the next USB poll. Measuring these delays would take specialized equipment.

    It may be possible to test the relative mouse to PC delay with a modification to the software so that it captures data from two mice simultaneously and stores the results on a per mouse basis. There is some normalizing of counts so you can compare the movements accurately on the time scale. You can probably get relative time to within a millisecond or so before the PC / USB polling rate becomes the limiting factor.

    A felület még baromi kezdetleges, pont annyit tud, hogy én még ki tudok rajta igazodni, de nem hibátlan.

    Szóval a nálam lévő két egeret összehasonlítottam: a G100s-t a Razer Salmosával, íme az eredmény.

    [ Módosította: Karma ]

    Tudom, tudom, akasszak a tökömre egy lámpát, hogy sötétben is tudjak kaszálni.

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