If {HEAD ~ the mesh debugger link} is selected by {TAIL ~ the user}, then a mesh debugger window is opened to display information regarding the triangle currently being drawn that the selected pixel is part of 
If { HEAD ~ the mesh debugger link } is selected by { TAIL ~ the user } , then a mesh debugger window is opened to display information regarding the triangle currently being drawn that the selected pixel is part of
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH