Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Patent
1997-08-26
1999-05-11
Fetting, Anton
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
G06T17/20
Patent
active
059032731
ABSTRACT:
An apparatus of the invention generates an image including a plurality of pixels by mapping a plurality of texture data onto a surface of an object. The apparatus includes: a geometrical transformation section for geometrically transforming a curved surface defined in a 3-dimensional space into a curved surface in a 2-dimensional screen space; a micro-polygon generating section for dividing the curved surface in the 2-dimensional screen space into a plurality of partial curved surfaces in accordance with the number of the plurality of texture data, and for generating a micro-polygon in accordance with each of the plurality of partial curved surfaces; an area contribution determining section for determining an area contribution of the micro-polygon to a pixel included in the image, based on a relative positional relationship between the micro-polygon and the pixel; a texture data acquiring section for acquiring texture data in accordance with the micro-polygon; and an intensity-value determining section for determining an intensity value of the pixel, based on the area contribution determined by the area contribution determining section and the texture data acquired by the texture data acquiring section.
REFERENCES:
patent: 4855934 (1989-08-01), Robinson
patent: 4858149 (1989-08-01), Quarendon
patent: 4888583 (1989-12-01), Ligocki et al.
patent: 4901064 (1990-02-01), Deering
patent: 4935879 (1990-06-01), Ueda
patent: 5058042 (1991-10-01), Hanna et al.
patent: 5103217 (1992-04-01), Cawley
patent: 5107444 (1992-04-01), Wu
patent: 5255352 (1993-10-01), Falk
patent: 5299298 (1994-03-01), Elmquist et al.
patent: 5307450 (1994-04-01), Grossman
patent: 5361386 (1994-11-01), Watkins et al.
patent: 5363475 (1994-11-01), Baker et al.
patent: 5448687 (1995-09-01), Hoogerhyde et al.
patent: 5448690 (1995-09-01), Shiraishi et al.
patent: 5490240 (1996-02-01), Foran et al.
patent: 5537224 (1996-07-01), Suzuoki et al.
patent: 5555356 (1996-09-01), Scheibl
Foley et al., Computer Graphics: Principles and Practice, 1990, pp. 229-242, 478-483, 617-623, 686-717, 741-744, 754-756, 806-813.
Schilling et al., EXACT: Algorithm and Hardware Architecture for an Improved A-Buffer, ACM Computer Graphics, Aug. 1993, pp. 85-91.
Bennis et al., Piecewise Surface Flattening for Non-Distorted Texture Mapping, ACM Computer Graphics, Jul. 1991, pp. 237-246.
Crawfis et al., Texture Splats for 3D Scalar and Vector Field Visualization, IEEE Visualization, Oct. 1993, pp. 261-267.
Cook et al, Computer Graphics, vol. 21, No. 4, Jul. 1987, "The Reyes Image Rendering Architecture", pp. 95-102.
Search Report for French Appl. 9415806000, Mailed Mar. 11, 1996.
Sweeney et al., IEEE, 1986, No. 2, N.Y., pp. 41-49, "Ray Tracing Free-Form B-Spline Surfaces".
Boriatouch et al, IRISA, pp. 107-124, France, "A VLSI Chip for Ray Tracing, Bicubic Patches.", Eurographics '89 (Sep. 1989).
Abi-Ezzi et al, Eurographics '91, No. Holland, pp. 385-397, "Tesselation of Curved Surfaces Under Highly Varying Transformations".
Hirai Makoto
Mochizuki Yoshiyuki
Fetting Anton
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Apparatus and method for generating an image for 3-dimensional c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for generating an image for 3-dimensional c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for generating an image for 3-dimensional c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-248745