The current invention relates to the methods to achieve virtual reality with making virtual objects not under focus of a viewer in virtual scenes appear defocused, and making objects under focus of said viewer appearing focused and clear to said viewer. The current invention also relates to the methods to achieve augmented reality with making virtual objects in virtual scenes associated with real objects not under focus of a viewer in real scenes appear defocused to said viewer in said virtual scene, and making virtual objects in virtual scenes associated with real objects being under focus of a viewer in real scenes appear focused to said viewer in said virtual scene.