A virtual reality apparatus comprising: a virtual reality display screen; an eye tracking system that tracks a gaze direction of one or more eyes of a user to determine an object of focus in a virtual reality display; a processor; and a memory having a set of instructions that when executed by the processor causes the virtual reality apparatus to: determine a particular scene of a virtual reality imagery by analyzing a code displayed by said virtual reality display screen that is associated with said particular scene; determine a predetermined luminance value associated with said particular scene of a virtual reality imagery by decoding luminance scene values that are encoded into video frames; estimate one or more pupil dimensions of the one or more eyes based upon said predetermined luminance value of virtual reality imagery displayed by the virtual reality display screen, comprising determining what pupil dilation should be based upon said predetermined luminance value; determine a focal plane based upon the estimated one or more pupil dimensions of the one or more eyes based upon said predetermined luminance value; generate a synthetic depth of field based upon the focal plane; and apply a blurring effect to one or more pixels of the virtual reality display based upon the one or more pixels being outside of the synthetic depth of field. a virtual reality display screen; an eye tracking system that tracks a gaze direction of one or more eyes of a user to determine an object of focus in a virtual reality display; a processor; and a memory having a set of instructions that when executed by the processor causes the virtual reality apparatus to: determine a particular scene of a virtual reality imagery by analyzing a code displayed by said virtual reality display screen that is associated with said particular scene; determine a predetermined luminance value associated with said particular scene of a virtual reality imagery by decoding luminance scene values that are encoded into video frames; estimate one or more pupil dimensions of the one or more eyes based upon said predetermined luminance value of virtual reality imagery displayed by the virtual reality display screen, comprising determining what pupil dilation should be based upon said predetermined luminance value; determine a focal plane based upon the estimated one or more pupil dimensions of the one or more eyes based upon said predetermined luminance value; generate a synthetic depth of field based upon the focal plane; and apply a blurring effect to one or more pixels of the virtual reality display based upon the one or more pixels being outside of the synthetic depth of field. determine a particular scene of a virtual reality imagery by analyzing a code displayed by said virtual reality display screen that is associated with said particular scene; determine a predetermined luminance value associated with said particular scene of a virtual reality imagery by decoding luminance scene values that are encoded into video frames; estimate one or more pupil dimensions of the one or more eyes based upon said predetermined luminance value of virtual reality imagery displayed by the virtual reality display screen, comprising determining what pupil dilation should be based upon said predetermined luminance value; determine a focal plane based upon the estimated one or more pupil dimensions of the one or more eyes based upon said predetermined luminance value; generate a synthetic depth of field based upon the focal plane; and apply a blurring effect to one or more pixels of the virtual reality display based upon the one or more pixels being outside of the synthetic depth of field.