1. A variable resolution virtual reality display system comprising: at least one display viewable by a user and partitioned into at least two display regions having different resolutions; a pose analyzer that calculates a pose of one or more body parts of said user; a scene renderer coupled to said at least one display and to said pose analyzer, wherein said scene renderer receives said pose from said pose analyzer; and, based on said pose, calculates a rendered image for each of said at least two display regions; and, an image warper coupled to said at least one display, said scene renderer, and said pose analyzer, wherein said image warper receives said pose from said pose analyzer; calculates a change in pose from said pose; and, when said change in pose is below a threshold value, generates a rerendering approximation of said rendered image for each of said at least two display regions based on said change in pose; and, modifies one or more pixels of said at least one display based on said rerendering approximation.