实现卷轴效果的脚本

// Scroll main texture based on time

　　var scrollSpeed = -0.5;

　　// This must be set to override a bug where Render Order

　　// of the tunnel objects is lost when SetTextureOffset is used

　　var queue = 0;

　　private var offset = 0.0;

　　function Update ()

　　{

　　offset = Time.time * scrollSpeed;

　　renderer.material.SetTextureOffset (“_MainTex”, Vector2(offset,0));

　　renderer.material.renderQueue = queue;

　　}