1·The top vertex in the queue was to be folded first and updated the vertices which were affected, then the queue was sorted again.
每次选择队首顶点向其折叠点合并，并且更新队列中受影响的顶点信息，再对队列重新排序。
2·Using Cinema4D layers, the "Vertex Map" can now be used as a mask in the diffuse channel, blending the road texture on top into the sand texture at the bottom.
采用C4D图层，vertex map现在被作为蒙版在默认通道使用，同时将道路的纹理附在上层，而砂石的纹理在下曾。