Show/Hide Triangle

This mode can be used for hiding or showing triangles in the active model. Clicking on single triangle shows or hides it. If it is hidden, it appears as a hole in the model.

All hidden triangles in the active model are made temporarily visible while this mode is active.

With the Shift-key pressed, it is possible to hide triangles continuously by keeping the mouse button pressed and moving the mouse over the model. All triangles crossed by the mouse path are hidden. Reverse operation to show triangles is also possible with the both Shift- and Ctrl-keys.