CA2299432A1 - Texture mapping and other uses of scalar fields on subdivision surfaces in computer graphics and animation - Google Patents

Texture mapping and other uses of scalar fields on subdivision surfaces in computer graphics and animation Download PDF

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Publication number
CA2299432A1
CA2299432A1 CA002299432A CA2299432A CA2299432A1 CA 2299432 A1 CA2299432 A1 CA 2299432A1 CA 002299432 A CA002299432 A CA 002299432A CA 2299432 A CA2299432 A CA 2299432A CA 2299432 A1 CA2299432 A1 CA 2299432A1
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Canada
Prior art keywords
scalar fields
animation
texture mapping
computer graphics
assignment
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Granted
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CA002299432A
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French (fr)
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CA2299432C (en
Inventor
Anthony David Derose
Michael Kass
Tien Gia Truong
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Pixar
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Pixar Animation Studios
Anthony David Derose
Michael Kass
Tien Gia Truong
Pixar
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Application filed by Pixar Animation Studios, Anthony David Derose, Michael Kass, Tien Gia Truong, Pixar filed Critical Pixar Animation Studios
Publication of CA2299432A1 publication Critical patent/CA2299432A1/en
Application granted granted Critical
Publication of CA2299432C publication Critical patent/CA2299432C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T13/00—Animation
    • G06T13/20—3D [Three Dimensional] animation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/20—Finite element generation, e.g. wire-frame surface description, tesselation
    • G06T17/205—Re-meshing

Abstract

Three related methods are disclosed for defining smooth scalar fields on arbitrary polygonal meshes which can be consistently carried through the subdivision process allowing one to define and compute the value of scalar fields over an arbitrarily dense set of points on the limit surface. Applications of these techniques in computer graphics and computer animation include: (1) the definition of pseudo-coordinates for use in parametric shading including texture mapping; (2) the assignment of smoothly varying articulation weights over the control points of a model to more efficiently define the transformation of a highly detailed object or character under specific animation controls; and (3) the assignment of smoothly varying local parameters for specifying the local behavior of dynamic or quasi-static objects or surfaces.
CA002299432A 1997-08-04 1998-07-29 Texture mapping and other uses of scalar fields on subdivision surfaces in computer graphics and animation Expired - Fee Related CA2299432C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/905,434 US6037949A (en) 1997-08-04 1997-08-04 Texture mapping and other uses of scalar fields on subdivision surfaces in computer graphics and animation
US08/905,434 1997-08-04
PCT/US1998/015703 WO1999006958A1 (en) 1997-08-04 1998-07-29 Texture mapping and other uses of scalar fields on subdivision surfaces in computer graphics and animation

Publications (2)

Publication Number Publication Date
CA2299432A1 true CA2299432A1 (en) 1999-02-11
CA2299432C CA2299432C (en) 2006-01-03

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CA002299432A Expired - Fee Related CA2299432C (en) 1997-08-04 1998-07-29 Texture mapping and other uses of scalar fields on subdivision surfaces in computer graphics and animation

Country Status (6)

Country Link
US (1) US6037949A (en)
EP (2) EP1933279A2 (en)
AU (1) AU8668798A (en)
CA (1) CA2299432C (en)
DE (1) DE69815687T2 (en)
WO (1) WO1999006958A1 (en)

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Also Published As

Publication number Publication date
DE69815687T2 (en) 2004-12-02
US6037949A (en) 2000-03-14
EP1000409B1 (en) 2003-06-18
EP1933279A2 (en) 2008-06-18
WO1999006958A1 (en) 1999-02-11
AU8668798A (en) 1999-02-22
DE69815687D1 (en) 2003-07-24
EP1000409A1 (en) 2000-05-17
CA2299432C (en) 2006-01-03

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