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An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode (LED), and a light detector, such as an array of photodiodes, to detect movement relative to a surface. Variations of the optical mouse have largely replaced the older mechanical mouse design, which uses moving parts to sense motion.
Since the mouse serves for aiming, a mouse that tracks movement accurately and with less lag (latency) will give a player an advantage over players with less accurate or slower mice. In some cases the right mouse button may be used to move the player forward, either in lieu of, or in conjunction with the typical WASD configuration.
For example, suppose a process commands that a computer card's voltage output be set high-low-high-low and so on at a rate of 1000 Hz. The operating system schedules the process for each transition (high-low or low-high) based on a hardware clock such as the High Precision Event Timer. The latency is the delay between the events generated by ...
Input-lag is the lag produced by the input device, such as a mouse, keyboard or other controller, and its connection. Wireless devices are particularly affected by this kind of lag. [ 6 ] The refresh rate is a type or part of input-lag that is the rate of a display to produce distinct picture, measured in Hz (e.g. 60, 240 or 360, that is 16.7 ...
A movement during a single Fitts's law task can be split into two phases: [10] initial movement. A fast but imprecise movement towards the target; final movement. Slower but more precise movement in order to acquire the target; The first phase is defined by the distance to the target.
The above way the body signals motion to the brain coincides very well with acceleration-onset cueing in a simulator. This is the reason why well-designed and properly set-up modern low-latency motion platforms in simulators work well for all aircraft from large transports to the low-g-force envelope of fighter aircraft.
A lag between the user's movement and virtual reality display of more than 100ms has been found to cause nausea. [19] Inertial sensors are not only capable of tracking rotational movement (roll, pitch, yaw), but also translational movement. These two types of movement together are known as the Six degrees of freedom.
Input lag or input latency is the amount of time that passes between sending an electrical signal and the occurrence of a corresponding action.. In video games the term is often used to describe any latency between input and the game engine, monitor, or any other part of the signal chain reacting to that input, though all contributions of input lag are cumulative.