The linear interpolation value to use when following a target.
Can also be set via setLerp or as part of the startFollow call.
The default values of 1 means the camera will instantly snap to the target coordinates. A lower value, such as 0.1 means the camera will more slowly track the target, giving a smooth transition. You can set the horizontal and vertical values independently, and also adjust this value in real-time during your game.
Be sure to keep the value between 0 and 1. A value of zero will disable tracking on that axis.