TW200632780A - Volumetric shadows for computer animation - Google Patents

Volumetric shadows for computer animation

Info

Publication number
TW200632780A
TW200632780A TW094137701A TW94137701A TW200632780A TW 200632780 A TW200632780 A TW 200632780A TW 094137701 A TW094137701 A TW 094137701A TW 94137701 A TW94137701 A TW 94137701A TW 200632780 A TW200632780 A TW 200632780A
Authority
TW
Taiwan
Prior art keywords
volume
shadow
objects
volumetric
model
Prior art date
Application number
TW094137701A
Other languages
Chinese (zh)
Inventor
Yang-Lih Yee
Original Assignee
Pacific Data Images Llc
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
Application filed by Pacific Data Images Llc filed Critical Pacific Data Images Llc
Publication of TW200632780A publication Critical patent/TW200632780A/en

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
    • G06T15/60—Shadow generation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Graphics (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Generation (AREA)
  • Processing Or Creating Images (AREA)

Abstract

A computer-rendered image of a three-dimensional scene includes a volumetric shadow cast by one or more objects in the scene. The data for the objects are rasterized to generate occlusion information that describes how objects within the volume occlude light. This information may be stored in an acceleration structure, which relates the occlusion information to volume elements within the occluding volume. A volumetric shadow is computed by tracing a ray through the occluding volume, the shadow based on the accumulated shading effects of the volume elements on the traced ray. An artist-driven lighting model may be used to compute the shadow rather than a model based on pure physics. This model may provide a number of adjustable tools for controlling shading effects, including falloff, blending, motion blur, and coloring.
TW094137701A 2004-10-27 2005-10-27 Volumetric shadows for computer animation TW200632780A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US97521604A 2004-10-27 2004-10-27

Publications (1)

Publication Number Publication Date
TW200632780A true TW200632780A (en) 2006-09-16

Family

ID=35569583

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094137701A TW200632780A (en) 2004-10-27 2005-10-27 Volumetric shadows for computer animation

Country Status (4)

Country Link
EP (1) EP1844445A1 (en)
CA (1) CA2583664A1 (en)
TW (1) TW200632780A (en)
WO (1) WO2006049870A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI393069B (en) * 2008-01-11 2013-04-11 Konami Digital Entertainment Image processing device, image processing method, information recording medium, and program
TWI557685B (en) * 2012-05-23 2016-11-11 雲南恆達睿創三維數字科技有限公司 Mesh animation

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8379022B2 (en) 2008-09-26 2013-02-19 Nvidia Corporation Fragment shader for a hybrid raytracing system and method of operation
FR2965652A1 (en) 2010-09-30 2012-04-06 Thomson Licensing METHOD FOR ESTIMATING LIGHT QUANTITY RECEIVED IN ONE POINT OF A VIRTUAL ENVIRONMENT
US9679398B2 (en) * 2015-10-19 2017-06-13 Chaos Software Ltd. Rendering images using color contribution values of render elements
CN109215134B (en) * 2018-09-04 2023-06-20 深圳市易尚展示股份有限公司 Occlusion determination method and device for three-dimensional model, computer equipment and storage medium
CN111476877B (en) * 2020-04-16 2024-01-26 网易（杭州）网络有限公司 Shadow rendering method and device, electronic equipment and storage medium
CN117455977B (en) * 2023-09-27 2024-07-09 杭州市交通工程集团有限公司 Method and system for calculating stacking volume based on three-dimensional laser scanning

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI393069B (en) * 2008-01-11 2013-04-11 Konami Digital Entertainment Image processing device, image processing method, information recording medium, and program
TWI557685B (en) * 2012-05-23 2016-11-11 雲南恆達睿創三維數字科技有限公司 Mesh animation

Also Published As

Publication number Publication date
EP1844445A1 (en) 2007-10-17
CA2583664A1 (en) 2006-05-11
WO2006049870A1 (en) 2006-05-11

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