我们将讨论维护硬边缘和平滑的轮廓的方法。

We'll cover methods for maintaining hard edges and smooth contours.

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如果有多个法线(“硬边缘上”)，或者多个UV坐标或有多个顶点颜色的顶点必须分割。

If a vertex has multiple normals (it's on a "hard edge"), or has multiple UV coordinates, or has multiple vertex colors, it has to be split.

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检查时可发现该肿瘤有如下特征：无痛性结节，表面光亮呈蜡样，质硬不活动，有珍珠般光泽，边缘卷曲且有小的扩张血管。

On examination the tumor may have the following characteristics: painless nodule, shiny and waxy, indurated, firm and immobile, pearly, rolled border, and small telangiectatic vessels.

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