Method and apparatus for de-indexing geometry

Details Method and apparatus for de-indexing geometry Method and apparatus for de-indexing geometry

2005-02-10

2008-10-21

Nguyen, Kimbinh T (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S582000, C345S422000, C345S423000, C345S531000, C345S532000, C345S539000

Reexamination Certificate

active

07439983

ABSTRACT:
A pixel shader is operated to perform a first texture lookup in an index buffer to obtain a vertex index value for a geometric primitive to be displayed. The pixel shader is also operated to perform a second texture lookup in a vertex buffer to obtain vertex data, wherein the vertex data corresponds to the previously obtained vertex index value for the geometric primitive to be displayed. The first and second texture lookups are repeated by the pixel shader such that vertex data is obtained for each vertex required to define the geometric primitive to be displayed. The pixel shader is then operated to rasterize the geometric primitive to be displayed, wherein the rasterizing is performed using the vertex data previously obtained by the pixel shader.

REFERENCES:
patent: 6593923 (2003-07-01), Donovan et al.
patent: 7151543 (2006-12-01), Moreton et al.

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