Computing anisotropic texture mapping parameters

Details Computing anisotropic texture mapping parameters Computing anisotropic texture mapping parameters

2008-05-06

2008-05-06

Zimmerman, Mark (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S587000, C345S611000

Reexamination Certificate

active

07369136

ABSTRACT:
A system and method for computing anisotropic texture mapping parameters by using approximation techniques reduces the complexity of the calculations needed to perform high quality anisotropic texture filtering. Anisotropic texture mapping parameters that are approximated may be computed using dedicated processing units within a graphics processor, thereby improving anisotropic texture mapping performance. Specifically, the major axis and minor axis of anisotropy are determined and their respective lengths are calculated using approximations. Other anisotropic texture mapping parameters, such as a level of detail for selecting a particular level are computed based on the calculated lengths of the major and minor axes.

REFERENCES:
patent: 5528003 (1996-06-01), Bodin et al.
patent: 5821944 (1998-10-01), Watkins
patent: 5877771 (1999-03-01), Drebin et al.
patent: 6005582 (1999-12-01), Gabriel et al.
patent: 6040837 (2000-03-01), Wong et al.
patent: 6104415 (2000-08-01), Gossett
patent: 6252698 (2001-06-01), Oikawa
patent: 6292193 (2001-09-01), Perry et al.
patent: 6525740 (2003-02-01), Cosman
patent: 6664971 (2003-12-01), Mukherjee et al.
patent: 6707458 (2004-03-01), Leather et al.
patent: 6724395 (2004-04-01), Treichler
patent: 6850243 (2005-02-01), Kilgariff et al.
patent: 6876362 (2005-04-01), Newhall, Jr. et al.
patent: 6919904 (2005-07-01), Kilgariff
patent: 6947054 (2005-09-01), Spangler
patent: 2002/0126133 (2002-09-01), Ewins
patent: 2003/0080963 (2003-05-01), Van Hook et al.
patent: 2003/0164840 (2003-09-01), O'Driscoll
patent: 2004/0119720 (2004-06-01), Spangler
patent: 2004/0257376 (2004-12-01), Liao et al.
patent: 2005/0219256 (2005-10-01), Donovan et al.
Baoquan Chen et al., “Footprint Area Sampled Texturing”, IEEE Transactions on Visualization and Computer Graphics, vol. 10 No. 2, Mar./Apr. 2004, pp. 230-240.
“ATI's Optimized Texture Filtering Called Into Question,” Tom's Hardware Guide, Jun. 3, 2004, <http://www20.graphics.tomshardware.com/graphic/20040603/index.html>.
Williams, Lance, “Pyramidal Parameters,” Computer Graphics, vol. 17, No. 3, Jul. 1983.
Heckbert, Paul S., “Fundamentals of Texture Mapping and Image Warping,”Master's Thesisunder the direction of Carlo Sequin, University of California, Berkeley, Jun. 17, 1989.
Zwicker, Matthias et al, “EWA Splatting,” IEEE Transactions on Visualization and Computer Graphics, IEEE Service Center, Jul.-Sep. 2002, vol. 8, No. 3, pp. 223-238.
Barkans, Anthony C., “High Quality Rendering Using the Talisman Architecture,” SIGGRAPH/Eurographics Workshop, 1997.
“Anisotropic Texture Filtering,” Meltdown 2/98 Prerelease, Direct3D Reference Rasterizer, Feb. 1998.
Talisman 3D Technology Briefing, Talisman Graphics & Multimedia System, Aug. 1996.
McCormack, Joe, et al., “Feline: Fast Elliptical Lines for Anisotropic Texture Mapping,” Mitsubishi Electric Information Technology Center America, 2000.
Greene, Ned, et al., “Creating Raster Omnimax Images from Multiple Perspective Views Using the Elliptical Weighted Average Filter,” IEEE Computer Graphics and Applications, vol. 6, Issue 6, pp. 21-27, Jun. 1986.
Heckbert, Paul, “Texture Mapping Polygons In Perspective,” Computer Graphics Lab, New York Institute of Technology, Technical Memo No. 13, Apr. 28, 1983.
Ritter, Jack, “A Fast Approximation To 3D Euclidian Distance,”Graphics Gems, edited by Andrew S. Glassner, pp. 432-433, Academic Press, Inc. 1990.
Ohashi, Yoshikazu, “Fast Linear Approximations of Euclidian Distance in Higher Dimensions,”Graphics Gems IV, edited by Paul S. Heckbert, pp. 120-124, Academic Press, Inc. 1994.

Affiliated with

Also associated with

Rating

Computing anisotropic texture mapping parameters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Computing anisotropic texture mapping parameters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computing anisotropic texture mapping parameters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2803547