Method and apparatus for texture border address mapping in rectangular coordinates
US5815157A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1995 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Dec 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An addressing scheme for efficient memory use for storing textures with borders. Memory space is allocated for the texture maps, borders, and submaps equaled to two times the width times the height of the texture map to be stored. The memory space is then divided into a rectangular map space having a left-hand portion and a right-hand portion. Storage is accomplished by storing the main texture map on the left-hand portion of the map space. Submaps are then aligned along the bottom edge of the map space at the right in the right-hand portion. Finally, the borders are stored beginning at the top of the right-side portion of the rectangular space. The four corner edges of the borders are stored below the texel borders in the right-side portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.