The present disclosure provides a method for user interaction. The method includes pointing a first device having a sensor, towards a panel defining a physical area having a plurality of markers rendered thereon, recognizing an interaction area defined by the plurality of markers on the panel, and rendering a plurality of graphical user interface elements on the panel in an Input/Output viewport. The plurality of markers includes at least one of an object and a shape recognizable by suitable computer vision means. Further, the Input/Output viewport includes a spatial volume between the first device and the panel.