摘要： 在使用Ngui 3.4.9的时候，使用“Unity 2D Sprite”控件的时候，出现了UnityException: Sprite is not rectangle-packed. TextureRect is invalid.错误。原因是：The default packing setting for Unity 4.3 sprites is "tight" which means that you cannot use Sprite.rect to calculate the sprite UVs:sprite默认导入的时候，Mesh Type是tight，这样则不 阅读全文