The CAM method of VPGL Language sets the current view-point camera of the scene.
CAM takes 2 input or 1 input/option and emits 1 output. Input 0 must be a 3D scene object. Input 1/option is a string which specifes the camera name to be set. CAM sets the current view-point camera which is one of the cameras the scene has.
Finally CAM passes the input 0 scene object to output 0.