1. A non-transitory computer readable medium storing computer executable instructions, which, when executed by a processor, cause the processor to carry out a method for displaying graphical data, comprising: receiving graphical data corresponding to a volumetric image of at least one physical object, wherein the graphical data comprises a plurality of 2-dimensional slices; displaying the volumetric image incorporating a plurality of graphical features visually representing portions of the at least one physical object; and imparting a first motion to a first of the graphical features relative to a remainder of the volumetric image to highlight the first graphical feature, wherein the first graphical feature is included in two or more of the 2-dimensional slices, and wherein imparting the first motion comprises imparting motion to only portions of the two or more 2-dimensional slices that contain the first graphical feature.