Global Patent Index - EP 1018093 A1

EP 1018093 A1 2000-07-12 - METHOD, SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR PROVIDING ILLUMINATION IN COMPUTER GRAPHICS SHADING AND ANIMATION

Title (en)

METHOD, SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR PROVIDING ILLUMINATION IN COMPUTER GRAPHICS SHADING AND ANIMATION

Title (de)

BELEUCHTUNGSVERFAHREN, -SYSTEM UND -PROGRAMM ZUR VERWENDUNG IN SCHATTIERUNG UND ANIMATION VON GRAPHIKEN

Title (fr)

PROCEDE, SYSTEME ET PRODUIT DE PROGRAMME MACHINE DESTINES A PRODUIRE UN ECLAIRAGE EN OMBRAGE ET EN ANIMATION INFOGRAPHIQUES

Publication

EP 1018093 A1 (EN)

Application

EP 98949509 A

Priority

  • US 9820096 W
  • US 93779397 A
  • US 7080998 A

Abstract (en)

[origin: WO9916021A1] A method, system, and computer program product are provided that represent complex point and area illumination (pure white or colored) in computer graphics shading and animation. An irradiance vector field table representative of an irradiance field for a scene to be rendered is generated and stored in a texture memory. During rendering, the scene is lit based on irradiance vectors in the irradiance vector field table. For each point being lit, a corresponding irradiance vector is generated from the irradiance vector field table. A vector operation is performed between the irradiance vector and a surface normal for the point to compute an irradiance energy component. The approaches with color illumination are: generating and storing a set of color irradiance vector field tables representative of an irradiance field at respective spectral wavelengths; storing an irradiance vector table and an irradiance color table; or storing an irradiance vector table and an irradiance color for the case of constant color.

IPC 1-7 (main, further and additional classification)

G06T 15/50

IPC 8 full level (invention and additional information)

G06T 15/50 (2011.01)

CPC (invention and additional information)

G06T 15/506 (2013.01)

Citation (search report)

See references of WO 9916021A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9916021 A1 19990401; EP 1018093 A1 20000712; JP 2001517838 A 20011009; JP 4219090 B2 20090204

INPADOC legal status


2001-11-07 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010502

2001-01-31 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20001219

2000-12-27 [RIN1] INVENTOR (CORRECTION)

- Inventor name: BAUM, DANIEL, R.

2000-12-27 [RIN1] INVENTOR (CORRECTION)

- Inventor name: HANRAHAN, PATRICK, M.

2000-12-27 [RIN1] INVENTOR (CORRECTION)

- Inventor name: PHARR, MATTHEW, M.

2000-07-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000425

2000-07-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE