光滑-通过向连接顶点的重心移动每个顶点来光滑一个网格物体。

Smooth - Smooths out a mesh by moving each vertex towards the barycenter of the linked vertices.

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你可以慢慢移动直至顶点。

You move slowly until you reach the top.

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注意不同的光照组间有重叠，如，最后一个逐像素光源也以逐顶点光照模式的方式渲染，这样能减少当物体和灯光移动时可能出现的“光照跳跃”现象。

Note that light groups overlap; for example last per-pixel light blends into per-vertex lit mode so there are less "light popping" as objects and lights move around.

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