function main ()
	-- get the desired scene --
	scene = Scenes.get("World")

	-- create a perspective camera --
	camera = Resources.newPerspectiveCamera()

	-- put it at 20, 20, and 5 units off the ground --
	camera:eye(20, 5, 20)

	-- aim it at the scene's origin --
	camera:aim(0, 0, 0)

	-- now we need to actually 'give' the camera to the scene --
	scene:add(camera)

	-- finally, trigger the use of the camera itself --
	scene:trigger(camera)
end