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WO1995027267A1 - Tamponnage z en infographie tridimensionnelle - Google Patents

Tamponnage z en infographie tridimensionnelle Download PDF

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Publication number
WO1995027267A1
WO1995027267A1 PCT/GB1995/000752 GB9500752W WO9527267A1 WO 1995027267 A1 WO1995027267 A1 WO 1995027267A1 GB 9500752 W GB9500752 W GB 9500752W WO 9527267 A1 WO9527267 A1 WO 9527267A1
Authority
WO
WIPO (PCT)
Prior art keywords
buffer
values
changed
computer graphics
appear
Prior art date
Application number
PCT/GB1995/000752
Other languages
English (en)
Inventor
Peter Robert Warnes
Original Assignee
Argonaut Technologies Limited
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 Argonaut Technologies Limited filed Critical Argonaut Technologies Limited
Publication of WO1995027267A1 publication Critical patent/WO1995027267A1/fr

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Classifications

    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/003D [Three Dimensional] image rendering
    • G06T15/10Geometric effects
    • G06T15/40Hidden part removal
    • G06T15/405Hidden part removal using Z-buffer

Landscapes

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

Abstract

L'invention se rapporte à un procédé de traitement d'informations infographiques intervenant avant la restitution d'une image sur un écran. Ce procédé consiste à comparer la coordonnée z (profondeur) de points ayant les mêmes coordonnées x, y sur différentes surfaces d'une scène tridimensionnelle de façon à déterminer et à stocker dans un tampon z les points qui doivent apparaître sur l'écran, et à éliminer ceux qui sont cachés et ne doivent pas apparaître. Le procédé comprend deux étapes: dans la première, toutes les comparaisons z sur une ligne de balayage sont effectuées sans interruption et le résultat est mis en mémoire dans le tampon z, et dans la seconde, seulement si le contenu du tampon z a été modifié, les valeurs modifiées sont utilisées pour mettre à jour une mémoire graphique contenant les valeurs de restitution d'image.
PCT/GB1995/000752 1994-03-31 1995-03-31 Tamponnage z en infographie tridimensionnelle WO1995027267A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9406511A GB9406511D0 (en) 1994-03-31 1994-03-31 Z-buffering in 3-d computer graphics
GB9406511.7 1994-03-31

Publications (1)

Publication Number Publication Date
WO1995027267A1 true WO1995027267A1 (fr) 1995-10-12

Family

ID=10752898

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/000752 WO1995027267A1 (fr) 1994-03-31 1995-03-31 Tamponnage z en infographie tridimensionnelle

Country Status (2)

Country Link
GB (1) GB9406511D0 (fr)
WO (1) WO1995027267A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088033A (en) * 1997-07-09 2000-07-11 Vlsi Solution Oy Method and apparatus for processing picture elements
GB2351892A (en) * 1999-01-11 2001-01-10 Evans & Sutherland Computer Co Span-based multi-sample Z-buffer pixel processing
US6410643B1 (en) 2000-03-09 2002-06-25 Surmodics, Inc. Solid phase synthesis method and reagent
EP1045344A3 (fr) * 1999-04-15 2002-08-21 DaimlerChrysler AG Méthode de simulation pour l'affichage en temps réel de environnement
US9641826B1 (en) 2011-10-06 2017-05-02 Evans & Sutherland Computer Corporation System and method for displaying distant 3-D stereo on a dome surface

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228652A (en) * 1989-02-14 1990-08-29 Intel Corp Hidden surface elimination and Gouraud shading

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2228652A (en) * 1989-02-14 1990-08-29 Intel Corp Hidden surface elimination and Gouraud shading

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088033A (en) * 1997-07-09 2000-07-11 Vlsi Solution Oy Method and apparatus for processing picture elements
GB2351892A (en) * 1999-01-11 2001-01-10 Evans & Sutherland Computer Co Span-based multi-sample Z-buffer pixel processing
US6404425B1 (en) 1999-01-11 2002-06-11 Evans & Sutherland Computer Corporation Span-based multi-sample z-buffer pixel processor
EP1045344A3 (fr) * 1999-04-15 2002-08-21 DaimlerChrysler AG Méthode de simulation pour l'affichage en temps réel de environnement
US6410643B1 (en) 2000-03-09 2002-06-25 Surmodics, Inc. Solid phase synthesis method and reagent
US9641826B1 (en) 2011-10-06 2017-05-02 Evans & Sutherland Computer Corporation System and method for displaying distant 3-D stereo on a dome surface
US10110876B1 (en) 2011-10-06 2018-10-23 Evans & Sutherland Computer Corporation System and method for displaying images in 3-D stereo

Also Published As

Publication number Publication date
GB9406511D0 (en) 1994-05-25

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