wristRoll.vfl

//get the roll attribute
//go through all bones with elbow prefix
//divide roll from wrist
//reset wrist
//add rotation to each bone

int pointsofinterest[];
int totalpoints = npoints(0);

//find wrist to extract roll from
int wristpointnum = -1;
for( int j = 0 ; j < totalpoints ; j++ ){
    string thisname = point( 1 , "name" , j );
    if( thisname == "wrist" ){
        wristpointnum = j ;
        break;
    }
}
if( wristpointnum == -1 ){
    printf("no input wrist found");
}
float roll = point( 1 , "roll" , wristpointnum );  //GET ROLL FROM SECOND INPUT.





for( int i = 0 ; i < totalpoints ; i++ ) {
    //string matching?
    string nameattribute = point( 0 , "name", i);
    string nameattributesplits[] = split( nameattribute, "_" );

    //FILTER RESULTS
    if( len(nameattributesplits)==2 && nameattributesplits[0]=="elbow" && nameattributesplits[1]!="mirror"  ){
        push( pointsofinterest, i );
    }

}

float roll_distribute = roll / len(pointsofinterest);



for( int k = 0 ; k < len(pointsofinterest) ; k++ ){


    vector4 newquaternion = eulertoquaternion( set( radians( 0 ) , radians( 0 ) , radians( roll_distribute * k ) ) , 0 );
    matrix3 rollMatrix = qconvert( newquaternion );
    matrix rollTransform = set( rollMatrix );

    matrix3 pointtransform = point( 0 , "transform" , pointsofinterest[k] );
    pointtransform *= rollMatrix;
    setpointattrib( 0 , "transform" , pointsofinterest[k] , pointtransform , "set" );
}