Method and apparatus for performing post-process antialiasing of

Details Method and apparatus for performing post-process antialiasing of Method and apparatus for performing post-process antialiasing of

1996-05-15

1999-12-21

Nguyen, Phu K.

Computer graphics processing and selective visual display system

Computer graphics processing

Adjusting level of detail

345430, G06T 1700

Patent

active

060055804

ABSTRACT:
A method and apparatus for performing post-process antialiasing of polygon edges. According to one aspect of the invention, a method is provided for modifying the color of a pixel in a texture mapped representation of an image generated from a plurality of polygons. According to this method, it is determined that an edge of one of the plurality of polygons intersects a scan line in the texture mapped representation at an intersection point. In addition, the pixel within which this intersection point lies is determined. The color for this pixel is identified by pixel data stored as part of the texture mapped representation. A filter is performed using the texture mapped representation as an input texture map by: 1) determining a texture point in the input texture map that corresponds to the intersection point; 2) performing a filter on texels in the input texture map identified by that texture point to determine a corrected color for the pixel; and 3) altering the pixel data stored as part of the texture mapped representation for the pixel containing the intersection point to indicate the corrected color. According to another aspect of the invention, the filter used in this method is either a linear filter, a bilinear filter, a quadratic filter, or a cubic filter. According to another aspect of the invention, the step of performing the filter is performed using the same hardware used for performing the texture mapping of the texture mapped representation.

REFERENCES:
patent: 4586038 (1986-04-01), Sims et al.
patent: 5278949 (1994-01-01), Thayer
patent: 5307449 (1994-04-01), Kelley et al.
patent: 5343558 (1994-08-01), Akeley
patent: 5463723 (1995-10-01), Saha
OpenGL Reference Manual: The Official Reference Document for OpenGL, Release 1, OpenGL Architecture Review Board, Addison-Wesley Publishing Company (1992), pp. 7-23, 25-39, 41-53, 67, 69, 293-297.
Niimi, Haruo et al. A Parallel Processor System for Three-Dimensional Color Graphics, Computer Graphics, SIGGRAPH '84 Conference Proceedings, vol. 18, No. 3 (Jul. 1984), pp. 67-76.
Bloomenthal, Jules. Edge Inference with Applications to Antialiasing, Computer Graphics, SIGGRAPH '83 Conference Proceedings, vol. 17, No. 3 (Jul. 1983), pp. 157-162.
Akeley, Kurt. RealityEngine Graphics, Computer Graphics Proceedings, SIGGRAPH '93 Conference Proceedings, (Aug. 1993), pp. 109-126.

Affiliated with

Also associated with

Rating

Method and apparatus for performing post-process antialiasing of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for performing post-process antialiasing of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for performing post-process antialiasing of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-509769