Coordinate wrapping for anisotropic filtering of non-power...

Computer graphics processing and selective visual display system – Computer graphics processing – Attributes

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C345S426000, C345S428000, C345S586000, C382S265000

Reexamination Certificate

active

07091983

ABSTRACT:
An apparatus and method for using non-power of two texture maps with anisotropic filtering is described. An anisotropic perturbation is applied to a texture map coordinate to produce a perturbed texture coordinate. A wrapped texture map index for various wrap modes is computed using the perturbed texture coordinate and an LOD width. In addition to the anisotropic perturbation, the perturbed texture coordinate may also include a tap perturbation.

REFERENCES:
patent: 5877771 (1999-03-01), Drebin et al.
patent: 6040837 (2000-03-01), Wong et al.
patent: 6292193 (2001-09-01), Perry et al.
patent: 6876362 (2005-04-01), Newhall et al.
patent: 6919904 (2005-07-01), Kilgariff
patent: 2003/0080963 (2003-05-01), Van Hook et al.
patent: 2003/0164840 (2003-09-01), O'Driscoll
Talisman 3D Technology Briefing, Talisman Graphics & Multimedia System.
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.
Williams, Lance, “Pyramidal Parametrics,” Computer Graphics, vol. 17, No. 3, Jul. 1983.
Heckbert, Paul S., “Fundamentals of Texture Mapping and Image Warping,”Master's Thesis, Dept. of Electrical Engineering and Computer Science, University of California, Berkeley, CA, Jun. 17, 1989.
“ATI's Optimized Texture Filtering Called Into Question,” Tom's Hardware Guide, Dec. 17, 2004. <http://www20.graphics.tomshardware.com/graphic/20040603/index.html>.
Heckbert, Paul, “Texture Mapping Polygons In Perspective,” Computer Graphics Lab, New York Institute of Technology, Technical Memo No. 13, Apr. 28, 1983.
Barkans, Anthony C., “High Quality Rendering Using the Talisman Architecture,” 1997 SIGGRAPH/Eurographics Workshop, 1997, pp. 79-88.
“Anisotropic Texture Filtering,” Feb. 1998, Microsoft Corporation.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Coordinate wrapping for anisotropic filtering of non-power... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Coordinate wrapping for anisotropic filtering of non-power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coordinate wrapping for anisotropic filtering of non-power... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3712597

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.