Mathf.Lerp

static function Lerp (from : float, to : float, t : float) : float

Description

Interpolates between a and b by t. t is clamped between 0 and 1.

When t = 0 returns from. When t = 1 return to. When t = 0.5 returns the average of a and b.

JavaScript
// Fades from minimum to maximum in one second

var minimum = 10.0;
var maximum = 20.0;

function Update () {
transform.position = Vector3(Mathf.Lerp(minimum, maximum, Time.time), 0, 0);
}