材质球一闪一闪

var duration = 2;
var colorStart = Color(0.2, 0.3, 0.4, 0.5);
var colorEnd = Color(1, 1, 0.4, 0.5);
function Update()
{
 var lerp = Mathf.PingPong (Time.time, duration) / duration;
 renderer.material.color = Color.Lerp (colorStart, colorEnd, lerp);
}