
Most of the clients in this folder are interactive
clients similar to the ones in the previous renderer.

The clients have new keyboard commands that use the
new view volume feature from this renderer.

The 'f' keys change the camera's field-of-view but keep its aspect ratio fixed.
The 'r' keys change the camera's aspect ratio but keep its field-of-view fixed.
The 'l' key turns letterboxing off and on.
The 'M' key toggles the printing of the Camera's current state.
The '*' key displays the current state of the program's window.
