WO1995027267A1 - Tamponnage z en infographie tridimensionnelle - Google Patents
Tamponnage z en infographie tridimensionnelle Download PDFInfo
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
- G06T15/10—Geometric effects
- G06T15/40—Hidden part removal
- G06T15/405—Hidden 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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2228652A (en) * | 1989-02-14 | 1990-08-29 | Intel Corp | Hidden surface elimination and Gouraud shading |
-
1994
- 1994-03-31 GB GB9406511A patent/GB9406511D0/en active Pending
-
1995
- 1995-03-31 WO PCT/GB1995/000752 patent/WO1995027267A1/fr active Application Filing
Patent Citations (1)
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)
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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