WO2011057997A3 - Procede d'estimation de diffusion de la lumiere - Google Patents

Procede d'estimation de diffusion de la lumiere Download PDF

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Publication number
WO2011057997A3
WO2011057997A3 PCT/EP2010/067076 EP2010067076W WO2011057997A3 WO 2011057997 A3 WO2011057997 A3 WO 2011057997A3 EP 2010067076 W EP2010067076 W EP 2010067076W WO 2011057997 A3 WO2011057997 A3 WO 2011057997A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
estimating
medium
light scattering
basis
Prior art date
Application number
PCT/EP2010/067076
Other languages
English (en)
Other versions
WO2011057997A2 (fr
Inventor
Cyril Delalandre
Pascal Gautron
Jean-Eudes Marvie
Original Assignee
Thomson Licensing
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR0958058A external-priority patent/FR2948799A1/fr
Application filed by Thomson Licensing filed Critical Thomson Licensing
Priority to EP10773358A priority Critical patent/EP2502206A2/fr
Priority to US13/508,746 priority patent/US20120232830A1/en
Publication of WO2011057997A2 publication Critical patent/WO2011057997A2/fr
Publication of WO2011057997A3 publication Critical patent/WO2011057997A3/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/50—Lighting effects
    • G06T15/506—Illumination models

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Graphics (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Generation (AREA)

Abstract

L'invention concerne un procédé d'estimation de !a quantité de lumière diffusée par un milieu participant hétérogène (10), Afin d'améliorer le rendu tout en minimisant Ses temps de calculs nécessaires, Ie procédé comprend les étapes de : - estimation de coefficients de projection dans une base de fonction à partir de valeurs de réduction d'intensité lumineuse estimées pour un ensemble de points (13) dudit milieu situés le long d'au moins une direction d'émission (110) de lumière par une source lumineuse (11), et - estimation de Sa quantité de lumière diffusée par ledit milieu (10), selon au moins une direction de diffusion (120) de la lumière, à partir desdits coefficients de projection estimés.
PCT/EP2010/067076 2009-11-16 2010-11-09 Procede d'estimation de diffusion de la lumiere WO2011057997A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10773358A EP2502206A2 (fr) 2009-11-16 2010-11-09 Procede d'estimation de diffusion de la lumiere
US13/508,746 US20120232830A1 (en) 2009-11-16 2010-11-09 Method for estimating light scattering

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FR0958058 2009-11-16
FR0958058A FR2948799A1 (fr) 2009-11-16 2009-11-16 Procede d'estimation de diffusion de la lumiere
FR1056087 2010-07-26
FR1056087 2010-07-26
FR1056096 2010-07-26
FR1056096 2010-07-26

Publications (2)

Publication Number Publication Date
WO2011057997A2 WO2011057997A2 (fr) 2011-05-19
WO2011057997A3 true WO2011057997A3 (fr) 2011-08-11

Family

ID=43901026

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/067076 WO2011057997A2 (fr) 2009-11-16 2010-11-09 Procede d'estimation de diffusion de la lumiere

Country Status (3)

Country Link
US (1) US20120232830A1 (fr)
EP (1) EP2502206A2 (fr)
WO (1) WO2011057997A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9495797B2 (en) 2010-03-10 2016-11-15 Intel Corporation Hardware accelerated simulation of atmospheric scattering
US20130100135A1 (en) * 2010-07-01 2013-04-25 Thomson Licensing Method of estimating diffusion of light
US20150006113A1 (en) * 2012-01-10 2015-01-01 Thomson Licensing Method and device for estimating light scattering
US10282894B1 (en) * 2017-10-13 2019-05-07 Activision Publishing, Inc. Participating media baking

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10046992C1 (de) * 2000-09-22 2002-06-06 Bosch Gmbh Robert Streulichtrauchmelder
US7106327B2 (en) * 2002-11-26 2006-09-12 The Trustees Of Columbia University In The City Of New York Systems and methods for modeling the impact of a medium on the appearances of encompassed light sources
US7910940B2 (en) * 2005-08-05 2011-03-22 Panasonic Corporation Semiconductor light-emitting device
US8009168B2 (en) * 2007-06-26 2011-08-30 Microsoft Corporation Real-time rendering of light-scattering media

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Discrete cosine transform", 2 September 2009 (2009-09-02), pages 1 - 9, XP002596944, Retrieved from the Internet <URL:http://en.wikipedia.org/w/index.php?title=Discrete_cosine_transform&oldid=311440997> [retrieved on 20100812] *
EVA CEREZO ET AL: "A survey on participating media rendering techniques", THE VISUAL COMPUTER ; INTERNATIONAL JOURNAL OF COMPUTER GRAPHICS, SPRINGER, BERLIN, DE LNKD- DOI:10.1007/S00371-005-0287-1, vol. 21, no. 5, 1 June 2005 (2005-06-01), pages 303 - 328, XP019339111, ISSN: 1432-8726 *
GAUTORN, P ET AL: "Volumetric Shadow Mapping", 3 August 2009 (2009-08-03), pages 1 - 1, XP002596945, Retrieved from the Internet <URL:http://gautron.pascal.free.fr/publications/SIGGRAPH2009Sketch/volumetricShadowMapping.pdf> [retrieved on 20100813] *
NIELSEN, M. B;: "Course Notes for Simulating Fluids in CG Ray Marching", 7 April 2009 (2009-04-07), pages 1 - 4, XP002596943, Retrieved from the Internet <URL:http://www.daimi.au.dk/~bang/fluids2009/raymarching.pdf> [retrieved on 20100811] *
TOKUYOSHI Y ET AL: "A fast rendering method for a scene with participating media of anisotropic scattering property", COMPUTER GRAPHICS INTERNATIONAL 2005 STONY BROOK, NY, USA JUNE 22-24, 2005, PISCATAWAY, NJ, USA,IEEE LNKD- DOI:10.1109/CGI.2005.1500423, 22 June 2005 (2005-06-22), pages 227 - 233, XP010830152, ISBN: 978-0-7803-9330-1 *

Also Published As

Publication number Publication date
EP2502206A2 (fr) 2012-09-26
US20120232830A1 (en) 2012-09-13
WO2011057997A2 (fr) 2011-05-19

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