In the following description, numerous specific details are set forth, such as examples of specific data signals, components, connections, virtual reality displays, configurations, etc. in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. In other instances, well known components or methods have not been described in detail but rather in block diagrams in order to avoid unnecessarily obscuring the present invention. Thus, the specific details set forth are merely exemplary. The specific details may be varied from and still be contemplated to be within the spirit and scope of the present invention.

The present invention also relates to apparatus for performing the operations herein. This apparatus may be specifically constructed for the required purposes, or it may comprise a general purpose computer selectively activated or reconfigured by a computer program stored in the computer. Such a computer program may be stored in a computer readable storage medium, such as, but is not limited to, any type of disk including floppy disks, optical disks, CD-ROMs, and magnetic-optical disks, read-only memories (ROMs), random access memories (RAMs), EPROMs, EEPROMs, magnetic or optical cards, or any type of media suitable for storing electronic instructions, and each coupled with a computing system bus. Portions of any modules or components described herein may be implemented in lines of code in software, configured logic gates in software, or a combination of both, and the portions implemented in software are tangibly stored on a computer readable storage medium.