Houdini PMVC deformer

PMVC wrangle

int npoints = npoints(1);

vector cagePos = {0};
int success;

float w[] = pointattrib(0, "PMVCweights", @ptnum, success);

if (success)
{
    
    for (int i = 0; i < npoints; i++ )
    {
        if ( w[i] > 0.0 )
        {
            vector sp = w[i];
            cagePos += point(1, "P", i) * sp;
        }
    }
    
    @P = cagePos;
}