[Jeff]

The easiest way to black out everything is set the scene to an empty scene:

viz.scene(2)

In a non-clustered CAVE script, multiple windows are setup within the application window, one for each wall. When setting a quad's parent to viz.ORTHO it's added to the main window by default. You'll also have to add quads for each of the other windows. Use the 'scene' argument to specify which window a quad is added to:

windows = [leftWindow,frontWindow,rightWindow]

for window in windows:

	blackout = viz.addTexQuad(parent=viz.ORTHO,scene=window)
	blackout.color(viz.BLACK)
	blackout.drawOrder(-1)
	blackout.setBoxTransform(viz.BOX_ENABLED)