算法利用伪随机数产生经过模型中心的直线，选取以直线与模型交点为球心的球形邻域作为嵌入对象，通过抖动调制邻域内顶点的重心来嵌入水印信息。
Firstly, a group of lines through the model center depending on a pseudorandom number is generated. Then the intersection points of these lines and the model's surface are chosen as embedding objects.
为顶点指派颜色对三角形内的像素会有什么影响呢？
If you assign the colors to the vertices, what happens to the pixels inside the triangles?
许多冰川学家认为，在几十年内，格陵兰冰盖也许会达到无可挽回的顶点，之后，它不可避免地将几乎完全融化。
Many glaciologists believe that within a few decades, the Greenland ice sheet may reach a point of no return, after which its near-total meltdown becomes inevitable.
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