Title:
METHOD TO IMPROVE PHOTOREALISTIC 3D RENDERING OF DYNAMIC VIEWING ANGLE BY EMBEDDING SHADING RESULTS INTO THE MODEL SURFACE REPRESENTATION
Document Type and Number:
WIPO Patent Application WO2006040691
Kind Code:
A3
Abstract:
The present invention provides for rendering photorealistic 3D viewing angles. Lighting values are approximated across selected viewing angles. In fixed lighting situations, approximating across viewing angles allows rendering of a high order lighting detail with complex surfaces. A polynomial equation representing the surfaces will be solved for the coefficients to be used in the formula of the fixed viewing angle. If the number of light sources is too high only specular and diffusion surfaces can be efficiently calculated in the polynomial equation.
Inventors:
CHOW ALEX CHUNGHEN (US)
YASUE MASAHIRO (US)
YASUE MASAHIRO (US)
Application Number:
PCT/IB2005/003971
Publication Date:
July 20, 2006
Filing Date:
July 18, 2005
Export Citation:
Assignee:
SONY COMPUTER ENTERTAINMENT INC (JP)
IBM (US)
IBM (US)
International Classes:
G06T15/50
Other References:
SLOAN P -P ET AL: "Clustered principal components for precomputed radiance transfer", ACM TRANSACTIONS ON GRAPHICS ACM USA, vol. 22, no. 3, July 2003 (2003-07-01), pages 382 - 391, XP002378704, ISSN: 0730-0301
MULLER G ET AL: "Fast environmental lighting for local-PCA encoded BTFs", PROCEEDINGS. COMPUTER GRAPHICS INTERNATIONAL IEEE COMPUT. SOC LOS ALAMITOS, CA, USA, 2004, pages 198 - 205, XP002378705, ISBN: 0-7695-2171-1
SLOAN P -P ET AL: "Precomputed radiance transfer for real-time rendering in dynamic, low-frequency lighting environments", ACM TRANSACTIONS ON GRAPHICS ACM USA, vol. 21, no. 3, July 2002 (2002-07-01), pages 527 - 536, XP002378706, ISSN: 0730-0301
KAUTZ J ET AL: "FAST, ARBITRARY BRDF SHADING FOR LOW-FREQUENCY LIGHTING USING SPHERICAL HARMONICS", PROCEEDINGS OF THE EUROGRAPHICS WORKSHOP ON RENDERING, XX, XX, 2002, pages 291 - 296,335, XP002308101
See also references of EP 1774480A2
MULLER G ET AL: "Fast environmental lighting for local-PCA encoded BTFs", PROCEEDINGS. COMPUTER GRAPHICS INTERNATIONAL IEEE COMPUT. SOC LOS ALAMITOS, CA, USA, 2004, pages 198 - 205, XP002378705, ISBN: 0-7695-2171-1
SLOAN P -P ET AL: "Precomputed radiance transfer for real-time rendering in dynamic, low-frequency lighting environments", ACM TRANSACTIONS ON GRAPHICS ACM USA, vol. 21, no. 3, July 2002 (2002-07-01), pages 527 - 536, XP002378706, ISSN: 0730-0301
KAUTZ J ET AL: "FAST, ARBITRARY BRDF SHADING FOR LOW-FREQUENCY LIGHTING USING SPHERICAL HARMONICS", PROCEEDINGS OF THE EUROGRAPHICS WORKSHOP ON RENDERING, XX, XX, 2002, pages 291 - 296,335, XP002308101
See also references of EP 1774480A2
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