fieldnotes on fx using sidefx houdini
float radius= .25;int maxpoints = 50;int handle = pcopen(0,"P",@P, radius, maxpoints);@P= pcfilter(handle, "P");
float radius= .25;
int maxpoints = 50;
int handle = pcopen(0,"P",@P, radius, maxpoints);
@P= pcfilter(handle, "P");
Source : https://andy.moonbase.net/vex-and-vops-a-twist-deformer/