Patents by Inventor Evan Leland

Evan Leland 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).

  • Patent number: 6750862
    Abstract: A method and system for performing enhanced lighting functions with respect to texture map data is operable within a computer controlled graphics display system and allows defined portions of a texture map to bypass prescribed lighting processes. Within a texture map, each texel data (u,v) is defined to contain color information and a control code (e.g., “texel light bit”). The texel light bit indicates to the lighting process whether or not texel color modulation is to occur to this texel data. In one embodiment, if the texel light bit is set, then no lighting modifications (e.g., color modulations) are performed with respect to the texel data. Also, if the texel light bit is not set, then normal lighting modifications are performed with respect to the texel data. In this way, the present invention allows texture map data to be lit in a non-uniform manner across a same graphics primitive. The present invention is particularly useful with respect to graphics objects (e.g.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: June 15, 2004
    Assignee: NVIDIA Corporation
    Inventors: Christopher W. Shaw, Goran Devic, Evan Leland