Patents by Inventor Jim E. Margeson, III

Jim E. Margeson, III has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System, method and article of manufacture for Z-value and stencil culling prior to rendering in a computer graphics processing pipeline
    Patent number: 7068272
    Abstract: A system, method and article of manufacture are provided for early Z-value based culling prior to pixel rendering in a graphics pipeline. In initial stages of processing, Z-value culling is performed on at least one pixel. Thereafter, the pixel is conditionally rendered. Whether the pixel is rendered or not is conditioned on results of the Z-value culling. By culling, or removing, the pixels that do not meet certain criteria prior to rendering, much processing is avoided in the rendering portion of the graphics pipeline.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: June 27, 2006
    Assignee: NVIDIA Corporation
    Inventors: Douglas A. Voorhies, James M. Van Dyke, Jim E. Margeson, III