}
@Override
public void arrow (float x1, float y1, float z1, float x2, float y2, float z2, float capLength, float stemThickness, int divisions) {
Vector3 begin = tmp(x1, y1, z1), end = tmp(x2, y2, z2);
float length = begin.dst(end);
float coneHeight = length * capLength;
float coneDiameter = 2 * (float)(coneHeight * Math.sqrt(1f / 3));
float stemLength = length - coneHeight;
float stemDiameter = coneDiameter * stemThickness;