使用子
代码说明：
使用子像素的方法来减轻图像系统的负荷已经是目前主流3D程序中的必用方法。比如知道Sin函数的特性，就只需要计算0~pi/2的点就可以了，剩下的pi/2~pi可以通过子像素来画出，在图形量大的情况下可以减轻至少一半的系统压力。 这个程序不光可以加速Sin函数的显示，还可以加速所有函数的显示。 -The use of sub-pixel image of the ways to reduce the load on the system is already the existing procedures of the mainstream 3D methods will be used. For example, to know the characteristics of Sin function, we only need to calculate 0 ~ pi/2 could be the point, and the rest of pi/2 ~ pi can be sub-pixels to draw, in the graphic case of a large quantity can be reduced at least half of the system pressure. This process not only speed up the Sin function can be shown that all functions can also speed up the display.
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