I have a mesh and on to that iI have added a single vertex and, which I'm extruding im making lines on the body. I have added shrinkwrapa Shrinkwrap modifier and when iI extrude the vertex it goes up or down not as if like a magnetic attracted toinstead of moving along the surface of the mesh. But iI have checkchecked and there is no snapping on. How can draw good way. Any suggestion or help thanks