把一个透明物体渲染到屏幕上了，但有的使用它看起来并不是那么的复合你的心意。使用蒙板技术，将会按照你蒙板的位置精确的绘制。(转发)-Rendering a transparent object to the screen, but some do not seem to use it then compound your mind. The use of mask technology, will be in accordance with the precise location of your mask painted. (Forward)