Quad Cap Pro是3DS MAX的一个修改器，可以给多边形做封口处理，生成四边形面

Quad Cap Pro is a modifier plugin for 3ds Max that fills borders and ngons with quad polygons unlike the normal cap tool which produces one big ngon.Quad Cap Pro is the successor of the Quad Cap maxscript. It is now faster, has many more features and also it can cap ngons with an uneven number sides producing quads and a single triangle

安装步骤：

关闭3DS MAX

拷贝对应版本文件夹里面的Quad Cap Pro.dlm到MAX安装目录的plugins里面，比如C:\Program Files\Autodesk\3ds Max xxxx\plugins

打开MAX，在修改器面板可以看到Quad Cap Pro