Time for action – making back-facing geometry accessible
When you are using the Texture or Solid shading, Blender lets you control whether you can see and modify vertices, edges, and faces that point away from you. This can be a help or a hindrance depending on what you are doing. So, it's good to be able to have it set the way you want it:
Open a new file. Delete the default cube. Press Shift + A and choose Mesh; then, choose Monkey.
Press 1 on the NumPad to get the front view. Press 5 on the NumPad to get the Ortho View. Press the Tab key to get into the Edit Mode.
Press A to deselect all the vertices.
Press B and move the LMB to use the border selection tool to select all of the vertices. Don't rotate the view; you just want to select them as seen from the front.
Press X. A menu pops up. Select Vertices.
Press the MMB and rotate the view so that you can see Suzanne from the side.
What just happened?
Good question. You did Border Select on all the vertices and then deleted the selected vertices...
