internal void setActiveOneFinger()
 {
     thisPinType = pinType.wireframe;
 }
 internal void setActiveFourFinger()
 {
     Debug.Log("eraser mode");
     thisPinType = pinType.eraser;
     eraserAttach();
 }
 internal void setActiveTwoFinger()
 {
     thisPinType = pinType.polymaker;
 }
 private void setUnactive()
 {
     thisPinType = pinType.none;
     endInteraction();
     eraserDetach();
 }