零基础跟老胡一起学Houdini
group promote:组转换
Keep in Bounding Regions:保持在边界区域内(根据边界选组)
Bounding Type : Bounding Object(points or vertices only)
可以自定义物体选组(仅仅是点级别)
group promote 组转换
Keep By Normals 保持法线一致
Spread Angle