Method and apparatus for dynamic object indentification after Z-collision
US5812138A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1995 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Dec 19, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/405
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer graphics display system and method are described for rendering objects formed of at least one geometric primitive as pixel images which collide or intersect in three dimensional space. A depth buffer stores depth information representing graphics images rendered by the graphics system. Data stored in the depth buffer representing graphics objects displayed in the three dimensional space are partitioned into three portions comprising an identification portion to store information identifying each object rendered in the three dimensional space, an object resolution portion to store data for controlling the resolution of the graphics object on a display screen, and a depth coordinate portion for storing the coordination information of the object rendered in the three dimensional space. A collision detection is provided to detect and determine when two objects collide on the display screen. Z depth information stored in the collision detection unit is compared with current Z values in the graphics engine to display a new object. If the Z values of the two objects are the same, the object are considered to have collided in the three dimensional space. The present invention al…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.