Logarithmic scales for UI
Logarithmic controls are common in games, especially in situations where high precision is required in low values and low precision in high values. Another use case is when we want to increase a value proportionally to its current value. One such example is speed of motion, as used in Unreal's navigation system. When the mouse wheel is rolled, motion speed is increased proportionally to its current value. That is necessary for the user to "feel" the increase in speed. If, say, speed is increased by constant increments, then there will be a time when the increase in speed won't be significant enough for the user to notice any difference. If we choose to increase speed by a constant increment of 0.1m/s, then if the user starts from a speed of 0m/s, then the first increment would be very abrupt (what if we want to move very slowly instead?) but if we want to move very fast , a potentially uncomfortably large number of rolls would be required to change between fast a